韩霞.应用于含分布式电源配电网的D-STATCOM改进型控制策略研究[J].电测与仪表,2018,55(14):106-112. Han Xia.An Improved D-STATCOM Control Strategy for Distribution Networks withDistributed Generation[J].Electrical Measurement & Instrumentation,2018,55(14):106-112.
应用于含分布式电源配电网的D-STATCOM改进型控制策略研究
An Improved D-STATCOM Control Strategy for Distribution Networks withDistributed Generation
At present, the deterioration of power quality caused by the access of distributed power sources and other types of power electronic load in distribution network is serious, and D-STATCOM can effectively solve it. In order to further improve the dynamic response ability and compensation effect of D-STATCOM, it is necessary to improve its control strategy. Firstly, the mathematical model of the three-phase four wire D-STATCOM in the stationary phase of the abg coordinate system is established by taking the grid side current and the DC bus voltage of D-STATCOM as the state variables. Then, according to the particularity of distribution network with distributed generation power quality: power fluctuation, unbalanced and nonlinear. The improved control strategy is used to design the current loop controller, and the improved three-phase four wire D-STATCOM has the characteristics of short dynamic response time, high steady-state accuracy and small amount of calculation. Finally, the feasibility of the proposed control strategy is verified by experiments.
