APF technical features. APF technical principle. About. solution is adaptive for load increasing in power grid

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2 About Beijing PONOVO POWER ADVANCED TECH.CO.,LTD is the high tech enterprise which specialize in technology development for power uality control and management, professional in developing and popularizing powerful electrical and electronics euipment. Beijing PONOVO POWER ADVANCED TECH.CO.,LTD is the one of four mainstay industries company of Beijing PONOVO Company. Our company develops and manufactures euipments for control and manages power uality such as Static Var Compensator (SVC), Solid State Complex Switch (SSCS), Static Synchronous Compensator (SVG), Active Power Filter (APF), High-Voltage filter Compensator (FC) and Low Voltage Thyristor Switched Filter Compensator (TSF). Our productions already been widely applied in industries of metallurgy, rail way, wind power, mine and intelligent power grid. Depending on long time technology accumulation, Beijing PONOVO succeeds in developing and manufacturing worldwide advanced electrical and electronics euipments. Company have established whole package of euipment simulation platform and euipment research strategy. Our company possesses electrical and electronics valve technology and technology for euipment design, experiment, adjustment and installation. Beijing PONOVO already has twenty one patents (sixteen of them are patented invention), twenty software copyrights and several national awards for science progress and IT industry invention. APF technical principle APF technical features APF is an electronic device using logical circuit to observe and input current. APF is composed of power supplied converter and connected in parallel with source of harmonics (load). APF does real time current sense and convert the signal from analog to digital signal. DSP processes digital signal to produce PWM signal. PWM signal drives IGBT power modules to filtering harmonic current by producing a current signal with same amplitude and opposite direction of harmonic current. In this way, APF can implement harmonic filtering, voltage fluctuation control, resonance restrain and improve power factor. Provided Capable of filtering twenty types of harmonic Eliminate zero seuence current in natural point Filtering 97% of harmonic for aimed harmonic Have control options for harmonic Meet standards of GB/T14549, IEEE Std Control power factor Balance load current, reduce current of negative seuence Power System Load Priority for functions is optional Capable of implementing single phase filtering Harmonic filtering range is up to 50th order Beijing PONOVO is capable for large scale production. Company's head uarter locates in Bejing Zhongguancui high-tech industrial park, has project design center and research center. There are two manufacturing and experimental bases are located in Beijing and Chonging. Our company has complete production line for electrical and electronic euipments, also has national laboratories for euipments working inspection, simulation and power system protection relay. Laboratories' total area is 7000m2. In 2012, Beijing PONOVO research & development center and industrial base will be put in service. The facility covers 46,000m2, has three main functions of research and development, global sale and service, manufacture products. PONOVO POWER ADVANCED TECH.CO.,LTD will become one of the best worldwide power system euipment manufacturer. Real time record for event and fault Maximum voltage is 690V Controller Parallel connection, easy to connect with Convertor power distribution system Reduce cost for maintenance Modules design, easy for expansion Adaptive and implement real time harmonic compensation along variation automatically Figure of APF Principle Apply close loop control, ensure accuracy PONOVO has highly innovative team to lead our technical development. Most team members are academicians or doctoral supervisors, professors and senior engineers. They are all elite in field of electrical and electronics. We also have 300 staff with average age of 35 and 35% among them are having master degree or even higher degree, 30% of our staff are engineers and technicians. In next five years, Beijing PONOVO will put more effort in developing technology for power uality management and relevant technology in area of intelligent power grid, keep introducing more advanced products to industries of metallurgy, electrified rail way, wind power. Dedicating ourselves for power saving and improving power uality in power transmission and distribution. solution is adaptive for load increasing in power grid for filtering Characteristics of filtering is not affected by system impedance, no resonance with system APF Functions Provides integrated solution for power Response time less than 100μs Compensation time is less than 10ms uality management Support multiple communication agreements Reduce harmonic distortion Apply photovoltaic insulation Reduce current peak value Product Introduction Improve power factor Reduce power loss in distribution line Due to non linear load have widely application in recent years, such as arc furnace, electrified railway, freuency convertor, rectifier, UPS and computer. It brings serious negative influence to uality of power supply because of their non-linear, impact and unbalanced characteristics. In another aspect, the electrical and electronic devices are more sensitive to the power uality for modern factory and commercial industry, as well as common households. Our uality of power supply is facing more challenge. Prevent natural line from overheat Prevent signal transmission euipment from data loss and interference Prevent sensitive devices from damage Prevent circuit breaker malfunction Conventional passive filters are mainly applied for harmonic restrain and reactive power compensation due to its advantages of less cost, simple structure, guaranteed stability and easy for maintenance. But passive filters have large dimension, their performance is affected by system and it is possible for passive filters to have resonance with system. After all, it is not enough to manage harmonic only by using passive filters. We must use new technology-active power filter for integrate power uality management in power distribution system Prevent capacitors from damage due to overload Insure safety of power system and reduce power loss 02

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