Common Information Model (CIM) Extensions and Messaging for the Integration of Renewable Distributed Energy Resources (DER) John Simmins, Gerald Gray, Brian Seal, Kristen Nicole, and Bob Uluski Electric Power Research Institute Eric Lambert and Jerome Fremont Électricité de France R&D CIM International User s Group New Orleans, LA October 25, 2012
Contents Key findings from the SG Demo survey DER Use Cases DER architecture 2
Now this is not the end. It is not even the beginning of the end. But it is, perhaps, the end of the beginning. Sir Winston Churchill, Speech in November 1942 British politician (1874-1965) 3
Description of the Deliverable Synthesis project IntelliGrid/EDF collaboration Gerald Gray Eric Lambert SG Demo members input IEC TC 57/IntelliGrid Brian Seal Inverter modeling and messages Deliverable Use cases Actors UML Model and profile Data requirements Messages CIM IntelliGrid SG Demo IEC TC 57 Current Work WG 17 4
Key Findings of the Survey 5
Key Findings of the Survey on DER Fairly large (>300kW) plans DER Architecture: mixed Types: CVR ( ), DR, PV Communications: RF Mesh( ), RF Tower, Cellular ( ), Broadband ( ) Protocols: DNP3 ( ), IEC 61850 ( ) Concerns: Standards Data formats Effort to integrate 6
DER Use Cases and Messaging 7
DER Architecture 8
Low Voltage Plant Plant Plant GeneratingUnit Generating unit StaticMachine Solar panel RectifierInverter -maxp Inverter ACLineSegment Connection line Terminal -phases ConnectiviyNode Clamp LV line TopologicalNode -name Terminal Clamp ACLineSegment -name 9
Medium Voltage Plant Plant Plant GeneratingUnit Generating unit StaticMachine Static machine RectifierInverter Inverter SynchronousMachine Synchronous machine AsynchronousMachine Asynchronous machine ACLineSegment Connection line 10
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Extensions to GeneratingUnit [GeneratingUnit [Equipment [PowerSystemResource [ ] ] ] ] SOURCE Class/Attribute/Association Comments CIM GeneratingUnit A single or set of synchronous machines for converting mechanical power into alternatingcurrent power. For example, individual machines within a set may be defined for scheduling purposes while a single control signal is derived for the set. In this case there would be a GeneratingUnit for each member of the set and an additional GeneratingUnit corresponding to the set. EXT GeneratingUnit.kind Generating unit kind (wind, solar, thermal, hydro, biogas, biomass, cogeneration, household waste). CIM GeneratingUnit SynchronousMachine Association with the synchronous machines of the generating unit. EXT GeneratingUnit AsynchronousMachine Association with the asynchronous machines of the generating unit. EXT GeneratingUnit StaticMachine Association with the static machines of the generating unit. 12
New Class: StaticMachine [StaticMachine [RegulatingCondEq [ConductingEquipment [ ] ] ] ] SOURCE Class/Attribute/Association Comments EXT StaticMachine Static machine. EXT StaticMachine.ratedS Nominal power, in kva. EXT StaticMachine.ratedU Nominal voltage, in kv. 13
New Class: RectifierInverter [RectifierInverter [ConductingEquipment [Equipment [PowerSystemRessource [ ] ] ] ] ] SOURCE Class/Attribute/Association Comments EXT RectifierInverter Inverter. EXT RectifierInverter.maxP Maximale power produced by the inverter, in kw. EXT RectifierInverter.ratedS Nominal power, in kva. EXT RectifierInverter StaticMachine Association with the static machine connected in the DC input of the inverter. EXT RectifierInverter AssetInfo Association with the asset information of the inverter. 14
Other RectifierInverter Attributes RectifierInverter.ratedS RectifierInvert.maxPabsorbed RectifierInvert.maxSabsorbed RectifierInvert.Prate RectifierInvert.referenceV RectifierInvert.referenceVoffset RectifierInvert.maxA [RectifierInverterInfo [AssetInfo [IdentifiedObject] ] ] [RectifierInverterElectronicKind] [RectifierInverterCommutationKind] 15
Use Cases for DER* Utility Provisions New DER Produce Distribution Power Flow Forecast Configure EPS Equipment Based on Daily DER and Load Forecast Reconfigures Systems in Response to Faulted Segment with Islanding Reconfigure Systems in Response to Faulted Segment Without Islanding Generate and Executes Substation Blackstart Sequence Distribution Management System Reconfigures Feeder with DERs Configure Substation for Island Operation Adjust System Settings in Response to Voltage Excursion *Architecture Reference Design for Distributed Energy Resource Integration: Smart Grid Demonstration Task 2.1. EPRI, Palo Alto, CA: 2010. 1020340. 16
DMS Use Cases* *Seal and Uluski, Using Standards to Integrate Distributed Energy Resources with Distribution Management Systems. EPRI, Palo Alto, CA: 2012. 1024360 17
DER Use Cases* *Seal and Uluski 18
Results of DOE/NIST Workshop Phase 1 DER Discovery Service Report Present DER Status Real Time Real Power Dispatch Provide Forecast/Prediction of DER Opportunity Real Time Reactive Power Dispatch Nicole, Seal, and Simmins, Collaborative Initiative to Advance Enterprise Integration of DER, Workshop Results. EPRI, Palo Alto, CA: 2012. 1026789. 19
Results of DOE/NIST Workshop Phase 2 Coordinate, Notify and Request DER with Circuit Reconfigurations Set DER Operating Modes & Settings DER History/Archived Status Modify Ride-Through Characteristics Notification of Settlement Activities Connect / Disconnect Provide Voltage Regulation Support DER Provide and Respond to a Price Signal Provide and Respond to a Schedule Integration of Cost Information 20
Comparison DER Discovery Service Report Present DER Status Provide Forecast/Prediction of DER Opportunity Real Time Real Power Dispatch Real Time Reactive Power Dispatch Provide Voltage Regulation Support Coordinate, Notify and Request DER with Circuit Reconfigurations 21 Use Cases IBM/ EPRI Seal/ Uluski DOE/ NIST DER Discovery Service X X X Report Present DER Status X X X Real Time Real Power Dispatch X X X Provide Forecast/Prediction of DER Opportunity X X X Real Time Reactive Power Dispatch X X X Coordinate, Notify and Request DER with Circuit Reconfigurations X X X Set DER Operating Modes & Settings X X DER History/Archived Status X Modify Ride-Through Characteristics X Notification of Settlement Activities X Connect / Disconnect X X Provide Voltage Regulation Support DER X X X Provide and Respond to a Price Signal X Provide and Respond to a Schedule X Integration of Cost Information X Reconfigures Systems in Response to Faulted Segment with Islanding X Reconfigure Systems in Response to Faulted Segment Without Islanding X Generate and Executes Substation Blackstart Sequence X Distribution Management System Reconfigures Feeder with DERs X Configure Substation for Island Operation X Stay off after trip X Limit DER Maximum Generation X X Peal Limiting X Phase Balancing X Retrieve DER Abnormal Condition Characteristics X
Let s go through the use cases. What information to set or obtain desired results Where geographic components of the desired results When temporal components of the desired results 22
Data Requirements - Identify DER Resources Item DER Name DER Type DER Address DER Geographic Location DER Primary Substation DER Secondary Substation DER Feeder DER Feeder Segment DER phase Description A unique identifier for each DER. Defining the type of DER device PV, storage, etc. The physical (street) address of the DER Latitude and Longitude The ID of the substation with which the DER is normally associated The ID of the substation with which the DER is alternatively associated The ID of the feeder to which the DER is connected The ID of the line segment (e.g. lateral, segment between switches) to which the DER is connected The ID of the Phase(s) to which the DER is connected) 23
Data Requirements - Identify DER Resources/Capabilities Item DER Watt Rating Description The as-installed watt rating of the DER (for PV plants, this may be panel-limited) DER Var Rating DER VA Rating DER Storage Watt-hours The Var capability of the DER The VA capability of the DER The usable energy storage Watt-hour capability of the DER 24
Data Requirements Real Time, Real Power Dispatch Item Request: Increase or Decrease in Real Power Level Description Indication passed to the DERMS of what level of real power is requested, expressed as a percentage of nameplate value. DER Being Addressed Indication passed to the DERMS of which DER are to be affected by the request. DER Connect/Disconnect Status Response to the request. A list response indicating the resulting status (connected/disconnected) of each affected DER. 25
Data Requirements - Provide Voltage Regulation Support Item Request: Maximum Generation Level DER Being Addressed DER Connect/Disconnect Status Description Indication passed to the DERMS of what maximum generation level is requested, expressed as a percentage of nameplate value. Indication passed to the DERMS of which DER are to be affected by the request. Options include those identified in Error! Reference source not found. Response to the request. A list response indicating the resulting status (connected/disconnected) of each affected DER. 26
Data Requirements - Inform DER of Alternate Circuit Configuration (Including Islanding) Item Set DER for Operation in Indicated Circuit Configuration DER Being Addressed DER Connect/Disconnect Status Description Indication passed to the DERMS that the utility circuit configuration has changed for the indicated DER devices. Circuit Configuration indicators: 1. Normal 2. Islanded 3. Alternate substation #1 4. Alternate substation #2 Indication passed to the DERMS of which DER are to be affected by the request. Options include those identified in Error! Reference source not found.error! Reference source not found. Response to the request. A list response indicating the resulting status (connected/disconnected) of each affected DER 27
The Where and When How Requested By Primary Substation By Circuit/Bus By Feeder By Segment By Feeder+Phase Description Request voltage reduction support from all DER connected to a specific substation Request voltage reduction support from all DER connected to a specific circuit/bus Request voltage reduction support from all DER connected to a specific feeder Request voltage reduction support from all DER connected to a specific feeder segment Request voltage reduction support from all DER connected to a specific feeder and phase By Segment+Phase Request voltage reduction support from all DER connected to a specific feeder segment and phase By Individual Device Name Request voltage reduction support from a single DER, requested by unique device ID 28
The Where and When 29
References Architecture Reference Design for Distributed Energy Resource Integration: Smart Grid Demonstration Task 2.1. EPRI, Palo Alto, CA: 2010. 1020340. Common Functions for Smart Inverters. EPRI, Palo Alto, CA: 2011. 1023059. Collaborative Initiative to Advance Enterprise Integration of DER, Workshop Results. EPRI, Palo Alto, CA: 2012. 1026789. Using Standards to Integrate Distributed Energy Resources with Distribution Management Systems. EPRI, Palo Alto, CA: 2012. 1024360. Distributed Energy Resources Integration in the Smart Grid Demonstration. EPRI, Palo Alto, CA: 2012. 1025778 (in about 1 month) 30
Together Shaping the Future of Electricity 31