CAJ | 학술논문

针对电网谐波污染日益严重的情况，为提高有源电力滤波器(APF)的稳态补偿精度和动态响应性能，从谐振控制器的角度出发，对传统重复控制进行改进，并针对控制对象优化得到最优重复控制参数。同时，为了克服重复控制延时一个周波响应的动态性能缺陷，提出了一种误差迭代比例—积分(PI)控制法，在提高系统动态响应速度的基础上尽可能保证稳态精度。最后，对重复控制的嵌入形式加以改进，通过设置指令前馈通道优化控制结构，得到了改进复合控制的优化结构，实验和仿真结果验证了所提出控制策略的准确性和有效性。
침대전망해파오염일익엄중적정황，위제고유원전력려파기(APF)적은태보상정도화동태향응성능，종해진공제기적각도출발，대전통중복공제진행개진，병침대공제대상우화득도최우중복공제삼수。동시，위료극복중복공제연시일개주파향응적동태성능결함，제출료일충오차질대비례—적분(PI)공제법，재제고계통동태향응속도적기출상진가능보증은태정도。최후，대중복공제적감입형식가이개진，통과설치지령전궤통도우화공제결구，득도료개진복합공제적우화결구，실험화방진결과험증료소제출공제책략적준학성화유효성。
In view of the increasingly serious situation of power grid harmonic pollution,the traditional repetitive control is improved from the perspective of the resonant controller to ameliorate the steady-state compensation accuracy and dynamic response performance of an active power filter (APF).The optimal repetitive control parameters are obtained for the control object.In order to overcome the dynamic performance deficiency of one-cycle response delay in the repetitive control,an error iteration proportional-integral (PI)control is proposed for ensuring the steady-state accuracy as far as possible while improving the dynamic response speed.Finally,the embedded form of repetitive control is improved.By setting an order feed-forward channel,the structure of improved composite control is optimized.Experiment and simulation results have verified the accuracy and effectiveness of the control strategy proposed.