CAJ | 학술논문

静止无功补偿装置采用由晶闸管控制电抗器、n组晶闸管投切电容器、固定由容器组等组成的结构对电力系统与负荷进行补偿研究，控制策略以稳定电压、无功补偿与功率因数矫正为目的。通过窗口滑动的傅里叶变换提取出电压与电流中的基波信号，并对无功功率进行快速计算。基于粒子群算法参数整定的非线性度变换PID控制器实现快速控制过程，同时提高了系统鲁棒性。以三相电路的瞬时无功理论实现对负荷不平衡引起的负序电流进行补偿。利用Matlab/Simulink软件进行仿真实验，得到相关波形，并验证了控制策略的正确性。
정지무공보상장치채용유정갑관공제전항기、n조정갑관투절전용기、고정유용기조등조성적결구대전력계통여부하진행보상연구，공제책략이은정전압、무공보상여공솔인수교정위목적。통과창구활동적부리협변환제취출전압여전류중적기파신호，병대무공공솔진행쾌속계산。기우입자군산법삼수정정적비선성도변환PID공제기실현쾌속공제과정，동시제고료계통로봉성。이삼상전로적순시무공이론실현대부하불평형인기적부서전류진행보상。이용Matlab/Simulink연건진행방진실험，득도상관파형，병험증료공제책략적정학성。
The paper proposes the static var compensation device TCR + nTSC + FC to compensate var of power system buses and loads. The purpose of control strategy is for voltage stability,var compensation and power factor correction. The fundamental wave signals in voltage and current is extracted by sliding window Fourier transform, and reactive power was calculated rapidly. The paper uses non-liner norm transformation PID controller and param-eters are setted by particle swarm algorithm to realize fast control process and improve the system robustness. The paper also uses instantaneous var theory of three-phase circuit to compensate negative sequence current introduced by the unbalanced loads. At last,an experiment with constant parameters was simulated by Matlab/Simulink soft-ware,and the results proved that the method is available.