张国荣,王泰文,侯立凯,汤彬,徐晨林.柔性多状态开关参数辨识无差拍控制[J].电测与仪表,2023,60(10):129-135. Zhang Guorong,Wang Taiwen,Hou Likai,Tang Bin,Xu Chenlin.Deadbeat control with parameter identification for soft open point[J].Electrical Measurement & Instrumentation,2023,60(10):129-135.
柔性多状态开关参数辨识无差拍控制
Deadbeat control with parameter identification for soft open point
As a new multi-functional power electronic device, the soft open point (SOP) can not only optimize the power flow in the distribution network, but also optimize the voltage distribution. In the article, the mathematical model of SOP is first derived, and then aims at the shortcomings of the PI parameters of traditional multi -port SOP double-loop control with many PI parameters and the difficulty of setting, using deadbeat control to design the current inner loop,thereby reducing the number of PI controllers and simplifying the design of the control circuit. Aiming at the disadvantages of deadbeat control being more sensitive to filter inductance and poor anti-inductance parameter perturbation capability, a parameter identification link was added to track and estimate system parameters to improve the robustness of deadbeat control. Then based on deadbeat control with parameter identificatin, the UdcQ、PQ and Uacf control modes of each port are algorithmically implemented. Finally, simulation experiments in MATLAB/Simulink verify the feasibility of the proposed control algorithm.
