CAJ | 학술논문

电容分裂中点式三相四线有源电力滤波器（APF）是解决三相四线电力系统谐波治理的有效方法，由于直流侧两组电容电压需要单独控制，增加了均压控制难度并直接影响补偿的效果。分析了该APF的电路拓扑，采用T-S模糊控制的方法对电容分裂中点式三相四线APF的直流侧均压控制进行建模，将直流侧两组电容电压分别作为输入前件变量，对电源电流实施反馈控制。设计的T-S模糊反馈控制器使APF直流侧两组电容电压实现自动均压，满足了APF对负载谐波的补偿控制要求。仿真及实验结果验证了所建立T-S模糊均压控制模型的有效性，APF直流侧两组电容的电压保持均衡，具有较高的稳态精度和良好的动态性能。
전용분렬중점식삼상사선유원전력려파기（APF）시해결삼상사선전력계통해파치리적유효방법，유우직류측량조전용전압수요단독공제，증가료균압공제난도병직접영향보상적효과。분석료해APF적전로탁복，채용T-S모호공제적방법대전용분렬중점식삼상사선APF적직류측균압공제진행건모，장직류측량조전용전압분별작위수입전건변량，대전원전류실시반궤공제。설계적T-S모호반궤공제기사APF직류측량조전용전압실현자동균압，만족료APF대부재해파적보상공제요구。방진급실험결과험증료소건립T-S모호균압공제모형적유효성，APF직류측량조전용적전압보지균형，구유교고적은태정도화량호적동태성능。
Capacitor splitted midpoint three-phase-four-wire Active Power Filter(APF)is an effective tool for harmonics abatement and three-phase-four-wire power quality improvement, but the difficulty of individual voltage control to the splitted capacitor impresses that it reduces the efficiency of compensation. To tackle this problem, by analysis of the main circuit, it employs Takagi-Sugeno(T-S)fuzzy control method to build the model of voltage equilibrium of the three-phase-four-wire APF in which the two voltages in DC side considered as input variables, and the source currents are feedback controlled. Satisfying the T-S fuzzy control model, the designed T-S fuzzy controller makes a balanced midpoint voltage, meeting the requirement of harmonics compensation. Computer simulations and examination results show the validity of the T-S fuzzy controller and the efficacy of equilibration of the midpoint voltage. The controller is able to carry out the operation in good steady-state accuracy and high quality dynamic characteristics.