CAJ | 학술논문

电力有源滤波器（active power filter，APF）是消除电网中非线性负载产生的电流谐波的有效手段之一。提出一种在三相静止坐标下的基于自适应理论的复合控制器，复合控制器包括改进的自适应广义积分器和PI控制器。在最大限度利用PI控制器进行谐波电流快速跟踪的同时，采取自适应广义积分器对各次谐波进行稳态无静差跟踪控制。提出的复合控制器与三电平电压空间矢量调相结合，能够消除单PI控制交流变量时所存在的稳态静差问题和改善系统鲁棒性。详细研究了复合控制器的设计方法，并给出了设计参数和系统的稳定性分析。基于MATLAB/Simulink仿真平台，对基于自适应广义积分器的三电平APF控制系统进行了仿真分析，最后通过实验验证了控制方法的正确性和有效性。
전력유원려파기（active power filter，APF）시소제전망중비선성부재산생적전류해파적유효수단지일。제출일충재삼상정지좌표하적기우자괄응이론적복합공제기，복합공제기포괄개진적자괄응엄의적분기화PI공제기。재최대한도이용PI공제기진행해파전류쾌속근종적동시，채취자괄응엄의적분기대각차해파진행은태무정차근종공제。제출적복합공제기여삼전평전압공간시량조상결합，능구소제단PI공제교류변량시소존재적은태정차문제화개선계통로봉성。상세연구료복합공제기적설계방법，병급출료설계삼수화계통적은정성분석。기우MATLAB/Simulink방진평태，대기우자괄응엄의적분기적삼전평APF공제계통진행료방진분석，최후통과실험험증료공제방법적정학성화유효성。
Active power filter (APF)is one of effective means to eliminate the current harmonics generated by nonlinear load in grid.This paper proposes a three-phase stationary coordinate composite controller based on self-adaptive theory,consisting of an improved self-adaptive generalized integrator and PI controller.While harmonic current is tracked through the PI controller used to its maximum, the self-adaptive generalized integrator is adopted for steady-state track of sub harmonics without static error.The proposed composite controller,in combination with the phase modulation of the three-level voltage space vector can eliminate the steady-state static error existing with the system using just the PI control of AC variables,and improve system robustness.This paper makes a detailed study of the design method of the composite controller and gives design parameters and system stability analysis.Based on the MATLAB/Simulink simulation platform,a simulation analysis is made of the three-level APF control system based on the self-adaptive generalized integrator.Finally,the experiment verifies the correctness and effectiveness of the control method.