CAJ | 학술논문

针对三相四线制有源滤波器直流侧电压PI控制存在超调比较大、动态响应速度慢等缺点，设计了一种采用模糊控制与PI控制相结合的模糊PI复合控制器。该控制器将输入变量进行模糊化，通过模糊推理控制模糊输出变量，以此实现在线修改参数的目的。分析了直流侧电压PI控制的基本原理，利用模糊控制器的双输出对PI控制器的参数进行整定，给出了二维模糊PI控制器的设计过程。 MATLAB仿真结果表明，该方法超调小、动态响应速度快，能满足负载突变工况的要求，验证了所设计的模糊PI控制器的有效性和优越性。
침대삼상사선제유원려파기직류측전압PI공제존재초조비교대、동태향응속도만등결점，설계료일충채용모호공제여PI공제상결합적모호PI복합공제기。해공제기장수입변량진행모호화，통과모호추리공제모호수출변량，이차실현재선수개삼수적목적。분석료직류측전압PI공제적기본원리，이용모호공제기적쌍수출대PI공제기적삼수진행정정，급출료이유모호PI공제기적설계과정。 MATLAB방진결과표명，해방법초조소、동태향응속도쾌，능만족부재돌변공황적요구，험증료소설계적모호PI공제기적유효성화우월성。
In view of the disadvantages which exist in the DC -side voltage PI control of the three -phase four-wire active power filter , such as relatively large overshooting and slow dynamic response , this paper designed a compoun-ded fuzzy PI controller which combined fuzzy control with PI control .The controller fuzzified the input variables and then fuzzified the output variables by fuzzy inference control so as to achieve the purpose of modifying the parameters online.The paper analyzed the basic principle of the DC -side voltage PI control , adjusted the parameter of the PI controller by using the dual -output of the fuzzy controller and proposed a design process of the two -dimensional fuzzy PI controller ..The MATLAB simulation results showed that this method produced small overshooting and fast dynamic response , and could meet the requirements of mutation load conditions .Therefore the validity and superiority of the fuzzy PI controller were fully verified in this paper .