2019•2019 IEEE Sustainable Power and Energy Conference (iSPEC)Requires access
Research on DVR Compensation Strategy Based on Minimum Energy Compensation Method
Zhen “Leo” Liu, Yan Hui Zhao, Ruyu Zhang, Ping Zhang, Yujia Zhao, Xingchen Pan
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Abstract
In today's society, load demand is increasing day by day, and new energy technologies are changing with each passing day. Under such a large environment, the structure of power systems is also complicated, and power quality problems are also coming. 90% of them come from voltage sag. For example, fluctuations in load; partial power imbalances are common causes of voltage sag (drop), so targeted governance is urgently needed. For the treatment of voltage sag, the dynamic voltage restorer has good effects, rapid compensation, high stability, and short operating time. According to the research of voltage compensation strategy, the compensation principle is analyzed based on the minimum energy compensation method, and the most compensated voltage of the dynamic voltage restorer is calculated by using the vector diagram. The minimum compensation can directly compensate and improve the post-compensation effect. Finally, the simulation is based on MATLAB., verify the correctness of the program.