Technical Requirements for Frequency Containment Reserve Provision in the Nordic Synchronous Area

Transcription

1 Technical Requirements fr Frequency Cntainment Reserve Prvisin in the Nrdic Synchrnus Area Draft 2017 Prequalificatin Wrking Grup, FCP prject 26 June 2017 THIS IS A DOCUMENT DESCRIBING THE NEW TECHNICAL REQUIREMENTS FOR FCR IN THE NORDIC SYNCHRONOUS SYSTEM. THE REQUIREMENTS ARE SO FAR DRAFT REQUIREMENTS AND ARE THUS NOT REQUIREMENTS TO BE FULFILLED FOR CURRENT NORDIC FCR MARKET.

2 Cntents 1. Intrductin The prequalificatin prcess The prequalificatin prcess fr the first time Reassessment f the prequalificatin Prequalificatin applicatin Apprval Technical requirements fr the FCR-prducts FCR-N FCR-N statinary perfrmance requirements FCR-N dynamic perfrmance requirement FCR-N stability requirement FCR-D FCR-D statinary perfrmance requirements FCR-D dynamic perfrmance requirement FCR-D stability requirement Special cnsideratins n FCR-D activatin Activatin capability f FCR prviding entities Tests and calculatins fr cmpliance and capacity verificatin Operatinal test cnditins Ambient test cnditins Test data t be lgged Tests t be perfrmed t verify cmpliance with the requirements fr FCR-N FCR-N step respnse sequence test FCR-N sine tests Tests t be perfrmed t verify cmpliance with the requirements fr FCR-D FCR-D upwards step respnse sequence test FCR-D upwards ramp respnse test FCR-D dwnwards step respnse sequence test FCR-D dwnwards ramp respnse test FCR-D sine tests Reassessment tests Reassessment fr FCR-N prviding entities Reassessment fr FCR-D prviding entities Test reprts Requirements n real-time telemetry and data lgging Real-time telemetry Data lgging File frmat fr lgged data delivery Validity and exceptins... 23

3 1. Intrductin These Technical Requirements fr Frequency Cntainment Reserve Prvisin in the Nrdic Synchrnus Area specify frmal technical requirements fr Frequency Cntainment Reserve (FCR) prviders as well as requirements fr cmpliance verificatin and infrmatin exchange. The requirements are based n SO GL 1, with prper adjustments t be suitable fr the Nrdic cnditins. The Supprting Dcument n Technical Requirements fr Frequency Cntainment Reserve Prvisin in the Nrdic Synchrnus Area cntains material t supprt the interpretatin f these technical requirements. In rder t participate in the FCR markets, it is necessary fr FCR prviding units and FCR prviding grups, jintly referred t as FCR prviding entities 2, t be prequalified. The prequalificatin prcess ensures that FCR prviders have the ability t deliver the specified prduct required by the TSO and that all necessary technical requirements are fulfilled. The prequalificatin shall be perfrmed befre a prvider can deliver FCR-N (Frequency Cntainment Reserve fr Nrmal peratin) and FCR-D (Frequency Cntainment Reserve fr Disturbances) prducts, and shall cnsist f dcumentatin shwing that the prvider can deliver the specified prduct as agreed with the TSO. The technical requirements, the specific dcumentatin required and the prcess fr prequalificatin are described in this dcument. The prequalificatin prcess includes: 1) Verificatin f the prperties f the FCR prviding entity. 2) Accmplishment f prequalificatin tests. 3) Setting up telemetry data t be sent t the reserve cnnecting TSO in real-time, and data lgging fr ff-line validatin purpses. Three FCR prducts are defined and can be prvided independently: FCR-N, in the range f Hz FCR-D upwards regulatin, in the range f Hz FCR-D dwnwards regulatin, in the range f Hz Each prduct can be prvided either as a linear functin f frequency deviatin r as an apprximatin f a linear functin. Each prduct ffered must cmply with the requirements specified in this dcument. The requirements addressed in this dcument apply t FCR prviding entities prviding FCR-N and/r FCR-D services. 1 System Operatin Guideline (SO GL), part IV LFC&R, versin 4 May Since mst f the requirements specified in this dcument refer t bth FCR prviding grups and FCR prviding units, the term FCR prviding entity has been intrduced t cver bth FCR prviding units and FCR prviding grups, in the text.

4 2. The prequalificatin prcess This sectin describes the prequalificatin fr the first time and the regular reassessment f the prequalificatin The prequalificatin prcess fr the first time The prequalificatin prcess starts with a ntificatin f the tests frm the ptential FCR prvider t the reserve cnnecting TSO. After successful cmpletin f the tests, a frmal applicatin has t be submitted. The applicatin shall cntain all infrmatin required by the TSO and listed in this dcument. Within 8 weeks the TSO shall cnfirm if the applicatin is cmplete r request additinal infrmatin frm the prvider. Additinal infrmatin shall be prvided within 4 weeks therwise the applicatin is deemed withdrawn. When the applicatin is cmplete the TSO shall within 3 mnths either prequalify r deny the FCR prviding entity t prvide the service. The test results included in an applicatin must nt be lder than 1 year. In case cmpliance with certain requirements f this dcument has already been verified against the reserve cnnecting TSO, it will be recgnised in the prequalificatin. Prviders wh aggregate many small units shall, besides the frmal applicatin t the reserve cnnecting TSO, als prvide a descriptin n hw the aggregatin system wrks Reassessment f the prequalificatin As stated in the SO GL the prequalificatin prcess shall include at least a reassessment in case f requirements r equipment change and a peridical reassessment within the time frame f at least five years. Fr the Nrdic cuntries, a reassessment will be required every fifth year. FCR prviders with entities that are due fr reassessment are t reprt these t the reserve cnnecting TSO at least six mnths prir t expiratin f the prequalificatin. The reassessment requires new testing and cmplementary dcumentatin t the extent necessary t verify the capacity, the perfrmance and the stability. The extent f the reassessment tests is described in Subsectin 4.6. In case f any change that has a significant impact n the FCR perfrmance r stability, fr an already prequalified entity, a full prequalificatin, is required. Such a change culd be a new turbine gvernr r changed turbine gvernr settings. Aggregated entities are reassessed as a whle entity. If new resurces are added t an aggregated entity the new resurces can be prequalified separately and then merged with the existing entity Prequalificatin applicatin The FCR prvider shall perfrm the required tests and gather the required dcumentatin and shall send this infrmatin t the reserve cnnecting TSO n the requested frmat (Appendix 1 in Supprting dcument). The respective TSO will specify hw, and t where, the applicatin shuld be sent. The applicatin shall cntain, as a minimum, the fllwing dcumentatin: 1) Frmal applicatin cver letter including the reasn fr the applicatin (first time, 5 year peridic reassessment, r substantial change) 2) General descriptin f the prviding entity Including descriptin f limitatins fr FCR activatin capability, if applicable 3) Test reprt and test data with respect t perfrmance and stability, in a frmat specified in Subsectin 5.2.1, fr

5 FCR-N FCR-D upwards FCR-D dwnwards 4) Dcumentatin f the real-time telemetry data perfrmance and accuracy 5) Dcumentatin f the data lgging system perfrmance and accuracy In additin, the applicatin shall cntain, as a minimum, the fllwing dcumentatin: Generatin based resurces Lad based resurces Energy strage based resurces General descriptin f the prviding unit/units Generatr: Rated apparent pwer [MVA], Inertia cnstant H [MWs/MVA] Turbine: Rated pwer [MW], Inertia cnstant H [MWs/MVA] Hydr units: Water starting time cnstant T w [s], rated head [m] Turbine gvernr: Type, and settings General descriptin f the prviding unit/units Infrmatin n the type f the lad Technical descriptin f the cntrller, including cntrller settings General descriptin f the prviding unit/units Rated apparent pwer [MVA] Rated energy capacity f the energy strage [MWh] Energy strage upper and lwer limits [MWh] Technical descriptin f the cntrller, including cntrller settings Fr ther types f resurces, crrespnding data describing the prperties f the entity have t be dcumented. The specificatin f such data has t be agreed with the reserve cnnecting TSO. Fr aggregated resurces, a high level technical descriptin f the aggregatin system shall be included Apprval Upn apprval, the FCR prvider shall receive a ntificatin frm the reserve cnnecting TSO that the FCR prviding entity is qualified t prvide the stated FCR prducts. The ntificatin shall als state the validity f qualificatin and when reassessment is due.

6 3. Technical requirements fr the FCR-prducts Each FCR prviding entity has t meet a number f technical requirements. The purpse f these technical requirements is t guarantee that the resurces taking part in frequency cntrl have sufficient statinary and dynamic perfrmance, and d nt destabilize the pwer system r cause any ther type f prblem in the system. Since the gvernr cntrl characteristic f generatin based resurces is different fr a pwer feedback arrangement cmpared t a valve psitin feedback arrangement, the test and evaluatin prcedure has t be slightly different fr prviding entities with pwer feedback. The requirements are the same irrespective f the prviding entity, i.e. generating entities and lad entities shuld be tested in a similar way t ensure the fulfilment f the perfrmance and stability requirements, respectively. FCR prviders shall have the ability t deactivate their FCR cntributin by means f remte cntrl in case the entity is nt at all times lcally mnitred FCR-N In this subsectin the statinary perfrmance requirements, the dynamic perfrmance requirements, and the stability requirement fr FCR-N are utlined FCR-N statinary perfrmance requirements FCR-N activatin has t be such that at frequencies ver 50.0 Hz pwer generatin facilities decrease their pwer prductin and lads increase their pwer cnsumptin. Vice versa, at frequencies belw 50.0 Hz pwer generatin facilities shall increase their pwer prductin and lads shall decrease their pwer cnsumptin. In statinary state, at a frequency f 50.0 Hz, 0% f the FCR-N capacity shall be activated and at frequencies equal r belw 49.9 Hz, 100% f the FCR-N upward capacity shall be activated. Respectively, at frequencies equal r abve 50.1 Hz, 100% f the FCR-N dwnward capacity shall be activated. The activatin within the interval 49.9 t 50.1 Hz must be prprtinal t the frequency deviatin. Fr resurces that are able t cntinuusly mdify their pwer exchange, the FCR-N cntributin frm each FCR prviding entity shall be designed t be statinary linear with respect t the frequency deviatin frm the nminal frequency, 50 Hz, within a frequency range frm 49.9 Hz t 50.1 Hz, see Figure 1. As indicated by the dashed line in the figure, the resurces are als allwed t cntinue t linearly increase their activatin beynd frequencies f 49.9 Hz and 50.1 Hz. In such a case the behaviur must be accrdingly reprted in the prequalificatin dcumentatin.

7 Figure 1: Activatin f cntinuusly cntrlled FCR-N. Resurces that are relay cntrlled shall activate their FCR-N cntributin based n a mntnic piecewise linear pwer-frequency characteristic, e.g. a step functin, see Figure 2. Figure 2: Activatin f relay cntrlled FCR-N resurces. Relay cntrlled FCR-N resurces have t activate their cntributin within the blue area in Figure 2, which means that the number f steps has t be at least 10. The red line in the figure indicates ne pssible activatin scheme that fulfils the requirement.

8 FCR-N dynamic perfrmance requirement The dynamic perfrmance requirement is such that a curve defined by the FCR-vectrs, described in Subsectin 3.3 in the Supprting dcument, tgether with a representatin f the pwer system, shall remain belw a pre-defined perfrmance requirement curve, as illustrated in Figure 3. The requirement applies t time perids frm 10 s t 300 s. Figure 3: FCR-N dynamic perfrmance requirement (black) tgether with an example respnse (blue) FCR-N stability requirement The pwer system, with the FCR prviding entities, is required t be stable and have sufficient stability margins in rder t guarantee stable system peratin. This is achieved when the Nyquist-curve (defined by the FCR-vectrs tgether with a representatin f the pwer system) des nt encircle the Nyquist pint (-1, 0) and des nt enter the black stability margin circle, arund the Nyquist pint, as shwn in Figure 4.

9 Figure 4: FCR-N stability requirement (black) tgether with an example respnse (blue) FCR-D In this sectin the statinary perfrmance requirements, the dynamic perfrmance requirement, and the stability requirement fr FCR-D are utlined. FCR-D is divided int tw prducts; ne prduct fr upwards regulatin t be activated at 49.9 Hz and lwer frequencies, and ne prduct fr dwnwards regulatin t be activated at 50.1 Hz and higher frequencies. Resurces prviding FCR-D must nt have any saturatin limit n the frequency cntrller measurement inputs FCR-D statinary perfrmance requirements FCR-D activatin has t be such that, at frequencies ver 50.1 Hz, pwer generatin facilities decrease their pwer prductin and lads increase their pwer cnsumptin. Vice versa, at frequencies belw 49.9 Hz, pwer generatin facilities shall increase their pwer prductin and lads shall decrease their pwer cnsumptin. At a frequency f 49.9 Hz, 0% f the FCR-D capacity shall be activated and at frequencies belw r equal t 49.5 Hz, 100% f the upward capacity shall be activated. Respectively, at a frequency f 50.1 Hz, 0% f the FCR-D capacity shall be activated and at frequencies abve r equal t 50.5 Hz, 100% f the dwnward capacity shall be activated. Fr resurces that are able t cntinuusly cntrl their pwer, the FCR-D cntributin shall be designed t be activated linearly in a frequency range frm 49.9 Hz t 49.5 Hz and in a frequency range frm 50.1 Hz t 50.5 Hz, fr upwards and dwnwards regulatin respectively. The statinary activatin requirement is shwn in Figure 5. As indicated by the blue dashed line in the figure, the resurces are als allwed t cntinue t linearly increase their activatin beynd the frequencies f 49.5 Hz and 50.5 Hz, respectively. In such a case the behaviur must be accrdingly reprted in the prequalificatin dcumentatin. Fr existing cntrllers where it is difficult t implement FCR activatin accrding t the blue lines, the activatin can als be accrding t the green dtted line in Figure 5 (the activatin may cntinue belw 49.5 Hz and abve 50.5 Hz).

10 Figure 5: Activatin f cntinuusly cntrlled FCR-D. Resurces that are relay cntrlled shall activate their FCR-D cntributin based n a mntnic piecewise linear pwer-frequency characteristic, e.g. a step functin, see Figure 6. Figure 6: Activatin f relay cntrlled FCR-D resurces. Relay cntrlled FCR-D resurces have t cntribute within the blue area in Figure 6, which requires at least 4 steps in each directin. The red line in the figure indicates ne pssible activatin scheme that fulfils the requirement.

11 FCR-D dynamic perfrmance requirement The FCR-D dynamic perfrmance is described by the FCR-D capacity f the FCR-D prviding entity. T calculate the FCR-D capacity, a frequency ramp (Figure 7) and step tests are used. The FCR-D capacity is calculated as where P 5s is the activated pwer 5 secnds after the start f the ramp C FCR D = min ( P 5s 0.93, P ss, E supplied ) (3.1) 1.8s P ss is the steady state FCR-D activatin when the entity is subjected t a frequency input step frm 49.9 Hz t 49.5 Hz r frm 50.1 Hz t 50.5 Hz, fr FCR-D upwards and dwnwards respectively E supplied is the activated energy frm the start f the ramp t 5 secnds after the start f the ramp, that is t+5s E supplied = P(t)dt when the entity is subjected t a frequency input ramp frm 49.9 Hz t 49.0 Hz with a slpe f Hz/s fr FCR-D upwards (see Figure 7 fr illustratin). Fr FCR-D dwnwards, the ramp is frm 50.1 Hz t 51.0 Hz with a slpe f 0.30 Hz/s. t (3.2) t P 5s Figure 7: Calculatin f FCR-D upwards capacity FCR-D stability requirement FCR-D prviding entities with cntinuus cntrl need t fulfil the same stability requirement as the FCR-N prviding entity. The stability requirement is fulfilled if the Nyquist curve (curve defined by FCRvectrs tgether with a representatin f the pwer system) des nt encircle the Nyquist pint (-1, 0) and des nt enter the black stability margin circle, arund the Nyquist pint, as illustrated in Figure Special cnsideratins n FCR-D activatin On FCR prviding entities where FCR-D activatin can be cnsidered t cause harm like wear and tear, schemes where FCR-D is activated nly when the abslute value f the frequency derivative exceeds a certain threshld value, can be implemented. This derivative threshld may be active nly when the abslute value f the frequency deviatin is smaller than 0.2 Hz. That is, FCR-D must be activated nce the frequency ges belw 49.8 Hz r abve 50.2 Hz, irrespective f the frequency derivative. If derivative based trigger is used, it shall be set t 0.06 Hz/s and FCR-D shall be activated als within the range f Hz and Hz respectively, if the threshld value fr the abslute value f the derivative is exceeded. This derivative based activatin has t be tested with an input frequency ramp with

12 a slpe f 0.06 Hz/s t the frequency measurement device. FCR-D has t be activated at the latest 200 ms after the start f the test ramp. Alternatively, a 200 ms lng transitin delay may be used (FCR-D is activated nce the frequency has been utside the frequency range 49.9 t 50.1 Hz, fr 200 ms). This shall als be tested using the ramp test Activatin capability f FCR prviding entities With respect t FCR capacity, it is the respnsibility f the FCR prvider t ensure that the cntracted capacity can be activated. If a prvider fr sme reasn is nt capable f fulfilling its bligatins, the prvider must immediately infrm the reserve cnnecting TSO. An FCR prviding entity is cnsidered t have limited activatin capability, if the entity is nly able t have its FCR cntributin fully activated fr a time perid, that is shrter than the cntractually agreed delivery perid 3 (fr example due t limited energy reservirs). The limitatins shall be specified in the applicatin dcumentatin. Such entity must be able t fully activate its FCR cntributin fr at least a time perid in the interval 15 t 30 minutes 4. In such case additinal reprting is required, see Subsectin 5.1. The precise value in the minutes interval will be decided by the reserve cnnecting TSOs in a harmnized way. 3 The cntractually agreed delivery perid is the amunt f time, fr which the FCR prvider has gt acceptance f it's bids and thereby a capacity bligatin. The smallest delivery perid is presently 1 hur (the bidding hur ). 4 Accrding t SO GL

13 4. Tests and calculatins fr cmpliance and capacity verificatin This sectin describes hw the cmpulsry tests are t be perfrmed. The tests are made t verify the cmpliance with the statinary and dynamic perfrmance requirements and t the stability requirements, separately fr FCR-N, FCR-D upwards, and FCR-D dwnwards. The cmpliance with these requirements shall be verified using a dedicated tl prvided and certified by the TSO. During the tests, the frequency input signal is replaced by a synthetic signal, while the entity is still synchrnized t the grid. Reliable test equipment, suitable fr the purpse f the testing, must be used. Test signals shall preferably be generated using an external signal surce (signal generatr) cnnected t the frequency measurement device. If that is impssible r causes significant incremental csts r incnvenience, cmpared t the value f using an external surce, an internal gvernr test surce may be used, after apprval by the reserve cnnecting TSO, prvided that the internal surce is apprpriate fr the purpse f the testing, e.g. with respect t accurately representing the frequency measurement lp. Test setup and equipment used fr the tests are described in the Supprting dcument. Between different tests, waiting time lng enugh fr the pwer respnse t stabilize shall be applied. Fr example, after a sine test with a certain time perid, the simulated frequency signal shall be set t 50.0 Hz and the next signal can be applied nly after the pwer respnse has stabilized Operatinal test cnditins Since the tests cannt be perfrmed fr all pssible peratinal situatins, the test cnditins are limited t the fllwing 4 extreme peratinal cnditins, and crrespnding cntrller parameter sets. Fr FCR prviding entities including generatin, the tests are t be perfrmed n a cntrller level. Fr ther types f FCR prviding entities ther reasnable limitatins t extreme peratinal cnditins have t be made. 1) Maximum active pwer setpint where the entity will prvide FCR, and maximum drp, and crrespnding cntrller parameter sets, where the entity will prvide FCR 2) Maximum active pwer setpint where the entity will prvide FCR, and minimum drp, and crrespnding cntrller parameter sets, where the entity will prvide FCR 3) Minimum active pwer setpint where the entity will prvide FCR, and maximum drp, and crrespnding cntrller parameter sets, where the entity will prvide FCR 4) Minimum active pwer setpint where the entity will prvide FCR, and minimum drp, and crrespnding cntrller parameter sets, where the entity will prvide FCR In additin, entities may als be tested at ther cnditins applicable fr the specific entity. FCR prviding entities, where the setpint des nt have any influence n the FCR respnse, can be tested at nly ne setpint value Ambient test cnditins The testing aims at verifying that the entity tested fulfills the technical requirements specified in Sectin 3 during freseeable peratinal cnditins. All peratinal cnditins at the time fr the testing must therefre be within nrmal peratinal limits, as clse t the freseeable peratinal cnditins as reasnably pssible. The peratinal cnditins at the time fr the test must nt be ptimized fr the purpse f the testing. Fr FCR prviding entities nt including generatin, tests must be perfrmed in such a way that the behaviur f the entity is verified fr all different peratinal cnditins applicable t the specific unit r grup.

14 The FCR capacity may vary with parameters and cnditins, which were nt subject t variatins during the tests, such as head f a hydr unit. Fr such cnditins a calculated value f the actual capacity is accepted, after apprval f the methdlgy and parameter values used, by the reserve cnnecting TSO Test data t be lgged Data lgged during tests shall be prvided t the reserve cnnecting TSO, and shuld as a minimum include the belw listed quantities, which are t be prvided in the frmat described in Subsectin fr the values mentined in this sectin, with the exceptin that time-stamps dn t have t be synchrnised t CET and a running number f secnds may be used instead f a full time-stamp. A separate file fr each test is t be prepared and named accrding t the scheme belw [DateTime]_[Resurce]_[Test]_[Test_set].csv Where: [DateTime] = The day and time f the day the test is perfrmed in frmat YYYYMMDDThhmm e.g T1210 [Resurce] = Identifier fr the resurce agreed with the reserve cnnecting TSO e.g. FCPG1 [Test] = The test perfrmed named accrding t ne f the fllwing FCR-N_step, FCR- N_sine_[TimePerid], FCR-D_dwn_step, FCR-D_dwn_ramp, FCR-D_up_step, FCR-D_up_ramp and FCR-D_sine_[TimePerid] [TimePerid] = One f the time perids specified in Table 1 r Table 2. [Test_set] = The test set which was used e.g. Test-set1 The sampling rate during the tests shall be at least 10 Hz fr FCR-D and at least 5 Hz fr FCR-N. Cntinuusly lgged during the tests Instantaneus active pwer in MW with a reslutin f 0.01 MW and an accuracy f 0.5% f the rated pwer f the prviding entity, r better. The value shall be such, that it cvers all active pwer changes as a result f the FCR activatin. Measured grid frequency in Hz, with a reslutin f 1 mhz and an accuracy f 10 mhz r better. Applied frequency signal, with a reslutin f 1mHz and an accuracy f 10 mhz r better. Status id indicating which cntrller parameter set is active, if it can be autmatically changed during the test. In additin, it is recmmended that imprtant states affecting the FCR respnse are als lgged. Such data includes but is nt limited t: Fr hydr units Cntrller utput signal Guide vane pening Runner blade angle (Kaplan units) Upstream water level abve sea level [m] Dwnstream water level abve sea level [m]

15 Fr thermal units Cntrller utput signal Turbine cntrl valve pening Fr batteries Charge level Prvided per test set 5 P max in [MW] P min in [MW] Active pwer setpint f FCR prviding entity [MW] Cntrller parameter set Expected FCR capacity in [MW] Dead band Cnditins that have an impact n the FCR respnse, such as Ambient temperature [ C] (thermal units) Cling water temperature [ C] (thermal units) 4.4. Tests t be perfrmed t verify cmpliance with the requirements fr FCR-N In rder t verify cmpliance with the requirements fr FCR-N, the prvider f the service shall perfrm the fllwing tests fr each cntrller parameter set, where FCR-N is t be prvided. Fr generatin based entities different setpints (max/min) have t be tested. The tests t be cnducted are the belw described step respnse tests, t determine the FCR-N capacity and t verify the cmpliance with the statinary perfrmance requirements, and the sine tests, t verify the dynamic perfrmance and stability FCR-N step respnse sequence test The step respnse sequence cnsists f tw majr steps in the input signal t determine the capacity and a minr step t clear the effect f the backlash, see Figure 8, where the applied frequency is shwn. The active pwer respnse has t be stabilized after each frequency step change befre the next frequency step change is applied. 5 A test set is a grup f different tests perfrmed at a certain setpint f the entity with a certain cntrller parameter set and cnsists f all the tests that need t be perfrmed at that setpint with thse cntrller parameters

16 50.00 Hz Hz Figure 8 FCR-N step respnse sequence t be perfrmed fr each setpint and parameter set FCR-N sine tests Sine tests shall be perfrmed with a frequency amplitude f 100 mhz. The applied nminal 50 Hz frequency signal is t be superimpsed with a sinusidal test signal with different time perids ranging frm 10 s t 300 s, as shwn in Table 1 belw. Fr time perids f 10 s t 70 s at least 5 perids with stabilized respnse shall be registered. Fr time perids f 90 s s at least 3 perids with stabilized respnse shall be registered. The applied frequency with the superimpsed sinusidal signal is illustrated in Figure 9 tgether with an example f the resulting pwer utput. Table 1: Time perids (s) fr FCR-N sine tests Figure 9 The applied frequency (f) with the superimpsed sinusidal signal (amplitude A, time perid T) and the crrespnding pwer utput (P). By inserting the test results int Supprting dcument Appendix 3, graphs crrespnding t Feil! Fant ikke referansekilden. and Figure 4 can be derived.

17 4.5. Tests t be perfrmed t verify cmpliance with the requirements fr FCR-D In rder t verify cmpliance with the requirements fr FCR-D, the prvider f the service shall perfrm the fllwing tests fr each parameter set where FCR-D is t be prvided. Fr generatin based entities different setpints (max/min) have t be tested. The tests t be cnducted are the belw described step respnse and sine tests, in additin t the ramp test specified in Subsectin FCR-D upwards step respnse sequence test The step respnse sequence cnsists f tw majr steps, where the applied frequency is shwn in Figure 10. A sequence with at least tw step changes has t be applied t verify cmpliance with the statinary perfrmance requirements. Fr each step perfrmed the next step shall nt be perfrmed until the active pwer respnse has stabilized Hz Hz Figure 10 FCR-D upwards regulatin step respnse sequence FCR-D upwards ramp respnse test The ramp respnse test is t be perfrmed accrding t Figure 11. It cnsists f a small step t Hz fllwed by a ramp t Hz with the ramp rate specified in Subsectin The test is finished when the respnse has stabilised at Hz.

18 50.00 Hz Hz Figure 11 FCR-D upwards regulatin ramp respnse sequence FCR-D dwnwards step respnse sequence test The step respnse sequence test cnsists f tw majr steps, where the applied frequency is shwn in Figure 12. A sequence with at least tw step changes has t be applied t verify cmpliance with the statinary perfrmance requirements. Fr each step perfrmed the next step shall nt be perfrmed until the active pwer respnse has stabilized Hz Hz Figure 12 FCR-D dwnwards regulatin step respnse sequence.

19 FCR-D dwnwards ramp respnse test The ramp respnse test is t be perfrmed accrding t Figure 13. It cnsists f a small step t Hz fllwed by a ramp t Hz with the ramp rate specified in Subsectin The test is finished when the respnse has stabilised at Hz Hz Hz Figure 13 FCR-D dwnwards regulatin ramp respnse sequence FCR-D sine tests The sine tests shall be perfrmed with a frequency amplitude f 100 mhz. The applied nminal 50 Hz frequency signal is t be superimpsed with a sinusidal test signal with different time perids ranging frm 10 s t 50 s, as shwn in Table 2 belw. At least 5 perids with stabilized respnse shall be registered. The applied frequency with the superimpsed sinusidal signal is illustrated in Figure 9 tgether with the resulting pwer utput. Fr entities with multiple cntrller parameter sets, FCR-D parameters shall be cntinuusly active during FCR-D sine tests. Table 2: Time perids (s) fr FCR-D sine tests By inserting the test results int Supprting dcument Appendix 6, graphs crrespnding t Figure 4 can be derived.

20 4.6. Reassessment tests Reassessment tests are t be dne under the cnditins stated in Subsectin 4.1 and Subsectin 4.2 unless stated therwise. If a full prequalificatin prcedure was perfrmed less than 5 years ag, a simplified reassessment accrding t Subsectins and can be perfrmed. If such simplified reassessment test results are in line with the mst recent full prequalificatin test results, the FCR prviding entity shuld be cnsidered prequalified fr anther perid f 5 years Reassessment fr FCR-N prviding entities The reassessment fr FCR-N cnsists f the test in Subsectin If the calculated capacities frm the step tests are nt in line with previus test results, a full prequalificatin prcedure is t be perfrmed Reassessment fr FCR-D prviding entities The reassessment fr FCR-D cnsists f the tests in Subsectin and Subsectin 4.5.2, fr entities prviding FCR-D upwards. The reassessment fr FCR-D cnsists f the tests in Subsectin and Subsectin 4.5.4, fr entities prviding FCR-D dwnwards. If the calculated capacities frm the step tests are nt in line with previus test results, a full prequalificatin prcedure is t be perfrmed Test reprts Fr each prviding entity tested, an verall test reprt shall be put tgether that summarizes the utcme f the tests. The test reprt shall be accmpanied by the lgged data specified fr each prduct tested. Templates fr test reprts are prvided as Appendix 4 and 7 f the Supprting dcument. In additin t the test reprt, a set f 24 hur lgged data, with active frequency cntrl, accrding t Subsectin 5.2, shuld be submitted t the TSO.

21 5. Requirements n real-time telemetry and data lgging The requirements fr telemetry delivered t the reserve cnnecting TSO in real-time are utlined in this sectin. Als, the requirements fr data t be lgged by the reserve prvider and delivered t the TSO upn request are utlined Real-time telemetry Each FCR prvider shall deliver the fllwing real-time telemetry fr each f its FCR prviding entities t the reserve cnnecting TSO: Instantaneus active pwer [MW]. The value shall be such that it cvers active pwer changes as a result f the reserve activatin. Activated FCR capacity [MW], Maintained FCR-N capacity [MW], Maintained FCR-D capacity [MW], fr upwards regulatin Maintained FCR-D capacity [MW], fr dwnwards regulatin Fr entities with a limited activatin capability additinal real-time telemetry is t be prvided as fllws: Maintained FCR-N capacity with limited activatin capability [MW], Maintained FCR-N capacity with limited activatin capability endurance [minutes] Maintained FCR-D capacity with limited activatin capability [MW], fr upwards regulatin Maintained FCR-D capacity with limited activatin capability endurance [minutes], fr upwards regulatin Maintained FCR-D capacity with limited activatin capability [MW], fr dwnwards regulatin Maintained FCR-D capacity with limited activatin capability endurance [minutes], fr dwnwards regulatin The maintained FCR-N/D capacity includes bth cntracted and nn-cntracted capacity. The real-time telemetry shall be delivered with a time reslutin better than r equal t 10 secnds 6. The required accuracy fr measured values is 0.5% f rated pwer with a reslutin f 0.01 MW. Calculatins are t be perfrmed n an entity level by the prvider and t be reprted t the reserve cnnecting TSO. Calculatin f the maintained capacities and activated capacity are described in the Supprting dcument Sectin Data lgging Each FCR prvider shall stre the data belw fr each f its FCR prviding entities fr at least 14 days, data may be stred in any frmat suitable fr the prvider. When data is t be delivered t the reserve cnnecting TSO (when requested by the TSO) the frmat specified in Subsectin applies. Maintained FCR-N capacity [MW] Maintained FCR-D capacity [MW], fr upwards regulatin Maintained FCR-D capacity [MW], fr dwnwards regulatin 6 If this time reslutin requirement turns ut t be extremely hard t fulfil, the prvider can request an exceptin frm the cnnecting TSO, accrding t Sectin 6.

22 Instantaneus active pwer [MW]. The value shall be such that it cvers active pwer changes as a result f the reserve activatin. P max [MW] P min [MW] Grid frequency [Hz] Cntrller setpint Cntrl Mde, alphanumeric identifier indicating which prequalified cntrller parameter set is active In additin, it is recmmended that imprtant states affecting the FCR respnse are als lgged, such as Cntrller utput signal [in a frmat suitable fr the specific cntrller] Guide vane pening [% f full peratinal range r degrees] Runner blade angle (Kaplan units) [% f full peratinal range r degrees] Upstream water level, meters abve sea level [m] Dwnstream water level, meters abve sea level [m] Reservir energy cntainment (size), if applicable [MWh] In limitatin flag (Blean indicatr) per prduct [1/0] Ambient temperature [ C] (thermal units) Cling water temperature [ C] (thermal units) Guidelines fr calculating the capacities are specified in the Supprting dcument. The data shall be recrded with a time reslutin less than r equal t 1 secnd. Required reslutin fr pwer values are at least 0.01 MW with an accuracy f 0.5% f rated pwer. The reslutin f the frequency must be at least 1 mhz and an accuracy f 10 mhz r better. The data shall be time-stamped and time shall be synchrnized t CET. The data shall be made available in csv-frmat fr the TSO within five wrking days frm request in the file frmat specified in Subsectin File frmat fr lgged data delivery The file frmat fr data delivery is the Eurpean standard csv-file, character encding in ASCII where values are delimited by semicln (;), decimal separatr is cmma (,) and recrd delimiter is carriage return ( ASCII/CRLF=0x0D 0x0A). Date and time frmats are in accrdance t ISO 8601 and are specified belw. A template file is available in the prequalificatin package prvided by the reserve cnnecting TSO, see Appendix 8 in the Supprting dcument. Naming frmat fr the file is [Date]_[Area]_[Resurce]_[Interval].csv Where: [Date] = The day data is extracted in frmat YYYYMMDD e.g [Area] = The bidding area where the resurce is lcated e.g. SE1, FI, NO5, DK2 [Resurce] = Identifier fr the resurce agreed with reserve cnnecting TSO e.g. FCPG1 [Interval] = The time interval fr which data is delivered in frmat YYYYMMDDThhmm- YYYYMMDDThhmm e.g T T2359 Data recrds are prvided in the fllwing frmat: [DateTime];[recrd1];[recrd2]; ;[recrdx].

23 [DateTime] = Date and time in frmat YYYYMMDDThhmmss.nnn where n are decimal fractins f a secnd e.g T The data recrds t be prvided are listed belw, tgether with their recrd headers and data types. If the data recrd is nn-applicable it shuld be left blank. Capacities are calculated as described in the Supprting dcument. [FcrnCap] = duble with three decimals f maintained FCR-N capacity in MW e.g. 20,100 [FcrdCapUp] = duble with three decimals f maintained FCR-D upwards capacity in MW e.g. 67,500 [FcrdCapD] = duble with three decimals f maintained FCR-D dwnwards capacity in MW e.g. 67,500 [InsAcPw] = duble with three decimals f instantaneus active pwer in MW e.g. 120,532 [Pmax] = duble with three decimals f current maximum pwer level in MW, utput (generatin) uttake (cnsumptin) e.g. 120,532 [Pmin] = duble with three decimals f current minimum pwer level in MW utput (generatin) uttake (cnsumptin) e.g. 0,832 [GridFreq] = duble with three decimals f measured frequency in Hz e.g. 49,320 [CntSetP] = duble with three decimals f cntrller set pint in MW, e.g. 67,500 [CntOutSig] = duble with three decimals f the cntrl signal utput frm the cntrller e.g. 0,300 [CntMde] = alphanumeric identifier f the cntrl mde in use e.g. FCRN4 [GuideVane] = duble with three decimals f the guide vane pening, nly applies t hydr, as a percentage f full peratinal range r in degrees e.g. 17,500 [BladeAng] = duble with three decimals f the runner blade angle in a Kaplan unit, as a percentage f full peratinal range r in degrees e.g. 5,301 [UppWatLev] = duble with three decimals f the current upper water level, nly applies t hydr, in meters e.g. 16,500 [LwWatLev] = duble with three decimals f the current lwer water level, nly applies t hydr, in meters e.g. 4,500 [ResSize] = duble with three decimals f the current calculated energy reservir level in MWh, e.g 1,505 [InLimFcrn] = Blean indicatr if the entity is in limitatin r nt based n current reservir, with respect t FCR-N, ne r zer, e.g 1 [InLimFcrdD] = Blean indicatr if the entity is in limitatin r nt based n current reservir, with respect t FCR-D dwnward, ne r zer, e.g 1 [InLimFcrdUp] = Blean indicatr if the entity is in limitatin r nt based n current reservir, with respect t FCR-D upward, ne r zer, e.g 1 [AmbTemp] = duble with three decimals f the current ambient temperature, applies t where temperature has an impact e.g. thermal, in degrees Celsius e.g. -5,120 [ClTemp] = duble with three decimals f the cling fluid temperature, applies t where temperature has an impact e.g. thermal, in degrees Celsius e.g. 4, Validity and exceptins

24 These technical requirements fr frequency cntainment reserve prvisin in the Nrdic synchrnus area are valid frm YYYY-MM-DD. If a specific requirement turns ut t be difficult t fulfil, due t technical r significant ecnmic reasns, the FCR prvider may request, frm the reserve cnnecting TSO, an exceptin frm the specific requirement. The reserve cnnecting TSO may apprve such an exceptin, if such an exceptin has n impact n the FCR prvisin frm that specific FCR prviding entity, and n significant impact n the stability f the intercnnected pwer system. Any dispute between a reserve prvider and the cnnecting TSO shuld be frwarded t the natinal regulatr, fr a recmmendatin t the TSO invlved n hw t handle the dispute.