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Intelligent flexible power device and control laboratory operation and control of the flexible structure of the grid、Experimental methods of electronic electronic flexible equipment and the development and test of new power devices。Dedicated to promote the development of a smart grid flexible device and new electrical electronic device，Improve the reliability of equipment and grid operations。The laboratory construction open control platform，Comprehensive governance device for electrical energy quality、Energy storage and new energy power generation systems and power grid failure protection devices can realize friendly access，Have a variety of communication transmission、Data collection and fault recording waves。The laboratory actively needs the research and development of new power devices for the actual needs of the power grid for the power grid，At present, a single -phase grounding fault selection protection device based on virtual energy method has been developed、The voltage damping and circulation monitoring device of the single -core cable shielding layer、A number of intelligent power devices such as non -merit -free compensation and cutting device based on fast switch。undertake the technology project of the headquarters of the State Grid Corporation、Shandong Iron and Steel Co., Ltd. technology project and State Grid Shandong Electric Power Company's science and technology project。

2. Laboratory function

Laboratory passes10KVTransformer, implementation10KVThe structural simulation of the real -type distribution network contains10KVLine simulation、Received compensation equipment、Ground transformer、Arc Birder Coil and Control Switch。It has been carried out at presentSingle -phase ground failure simulation experiment、Equipment overvoltage experiment、No Receiving Compensation Injection Experiment、The ability to accurately compensate experiments in the neutral point。

（1) Fair grid fault simulation and fault protection experiment

Complicated equipment for distribution network、Structural and frequent failure，Simulating the fault in the laboratory is of great significance for the development fault protection device。Laboratory has a power distribution network over -voltageand single -phase grounding fault simulation experiment,10KVThe line cabinet builds π -type equivalent lines based on the actual parameters of the distribution network line，Responsible for controlling the line and cutting、Line imbalance simulation、Single -phase ground failure, etc.。

                                                                                                （a）10KVSwicing diagram of the ground fault fault (b) 10KVLine equivalent simulation diagram1

（c) single -phase grounding fault judgment based on one or two fusion equipment

Figure1 Factory grid fault simulation and fault protection experiment

（2)

No merit compensation can improve the power factor of the power grid，Reduce grid loss，Improve power supply efficiency。The casting of the traditional non -contribution compensation equipment is easy to cause the equipment to over -voltage in the distribution network，Caused equipment insulation breakdown、Damage，New type of non -merit compensation and cutting device，Use the power distribution network vacuum fast switch to cooperate with accurate investment and cut compensation control strategy，Can inhibit the impact generated by the cast，Realizing precision investment compensation，greatly improves the safety of non -contribution compensation equipment。

Figure2 No merit compensation and fast casting experiment

（3) Neutral point compensation and overvoltage suppression experiment

The distribution network of a small current connecting the ground system often causes damage to equipment due to over -voltage of the ground，Precision compensation through neutral points，can reduce the overvoltage of the equipment to the ground。Three relative unbalanced voltage of the three relative unbalanced voltage of the non -grounding system and the arc elimination coil landing system、Arc Overvoltage Compensation Control，Development neutral point compensation equipment，Realize conversion in various scenarios according to different working conditions，It is important for the safe operation of the equipment for the distribution network。

Figure3 Calm compensation of the arc consistent coil and neutral point

3. The main equipment of the laboratory

 Figure4 Comprehensive controller of the laboratory platform

Figure5 Operating control cabinet in the laboratory