CAJ | 학술논문

提出一种基于无差拍控制的有源电力滤波器网侧电流直接控制方法。与传统网侧电流控制法相比，该方法的无差拍电流控制策略在αβ坐标系中实现，抑制了由dq变换引入的严重耦合；引入负载电流基波分量作为网侧电流的给定值，增强了系统的动态响应；对负载电流和电网电压进行前馈补偿，进一步提高了系统的补偿精度。仿真结果表明：改进方法比传统控制法具有更优越的动态性能，且可以实现APF对负载电流谐波分量和无功分量的选择性补偿。
제출일충기우무차박공제적유원전력려파기망측전류직접공제방법。여전통망측전류공제법상비，해방법적무차박전류공제책략재αβ좌표계중실현，억제료유dq변환인입적엄중우합；인입부재전류기파분량작위망측전류적급정치，증강료계통적동태향응；대부재전류화전망전압진행전궤보상，진일보제고료계통적보상정도。방진결과표명：개진방법비전통공제법구유경우월적동태성능，차가이실현APF대부재전류해파분량화무공분량적선택성보상。
An improved method for direct current control of active power filter based on deadbeat control is proposed. Compared with the traditional current control method, the deadbeat control is carried out in the αβ coordinate system to avoid the serious coupling by dq transform. Fundamental component of load current is brought into the given value of source current, the system dynamic response is enhanced. The load current and the source voltage are feed-forward compensated to improve the compensation precision of the system. The simulation results show that the improved method has better dynamic performance than the conventional control method and also it can realize the selective compensation of load current between harmonics and reactive component.