电力系统及其自动化学报2025，Vol.37Issue(5)：21-31,51,12.DOI:10.19635/j.cnki.csu-epsa.001524
基于低压限流与静止无功补偿器自适应协同的换相失败抑制策略
Commutation Failure Suppression Strategy Based on Adaptive Coordination of Voltage Dependent Current Order Limiter and Static Var Generator
摘要
Abstract
To suppress the continuous commutation failures caused by insufficient reactive power in a multi-infeed DC system,a collaborative suppression strategy of using voltage dependent current order limiter(VDCOL)to reduce the re-active power consumption of inverters and using a static var generator(SVG)to compensate reactive power is proposed.First,the system's voltage-reactive power characteristics are taken into account,a mathematical model of the coupling between DC current,reactive power output from the SVG and commutation voltage is established,and the existence of a feasible domain of SVG and VDCOL parameters for commutation failure suppression is obtained through derivation.Furthermore,with the consideration of the recovery process of a commutation failure,a critical voltage index for evalu-ating the multi-infeed continuous commutation failures is proposed to guide the optimization process.Then,a reward function is set by combining the proposed index,transmitted active power and reactive power compensation,and the deep deterministic policy gradient algorithm is used to adaptively calculate the optimal parameters.Finally,simulation results show that the proposed strategy can effectively suppress continuous commutation failures of the multi-infeed DC transmission system.关键词
多馈入系统/后续换相失败/电压-无功特性/协调控制/参数优化Key words
multi-infeed system/continuous commutation failures/voltage-reactive power characteristic/collaborative control/parameter optimization分类
动力与电气工程引用本文复制引用
向红,冯忠楠,曹善康,魏繁荣,马云聪,林湘宁..基于低压限流与静止无功补偿器自适应协同的换相失败抑制策略[J].电力系统及其自动化学报,2025,37(5):21-31,51,12.基金项目
国家自然科学基金资助项目(U22B20106). （U22B20106）
