直流側APF主電路參數與補償性能的關系

摘要：直流側有源電力濾波器并聯在整流橋的直流側，對整流類負載進行諧波治理有很大的技術優勢。主電路參數不僅決定系統能否正常工作，影響系統的補償性能，還影響整個系統的成本。文中討論了直流側有源電力濾波器主電路的主要參數(電感L、直流側儲能電容C)以及電容電壓Uc與補償性能之間的關系，并給出了參數選取標準。為直流側有源電力濾波器主電路參數設計提供了理論依據。用文中提出的參數設計標準，設計并調試了一臺試驗樣機，試驗結果證明了文中理論分析的正確性。 敘詞：直流側有源電力濾波器 主電路 補償性能 Abstract：The DC side active power filter(APF) is shunted at the DC side of rectifier bridge, which has great technical advantages in correcting the harmonic current for rectifier load. The main circuit parameter not only decides whether the system can operate properly, but also affects the system’s compensation performance. And the system cost is also determined by the main circuit parameter. The relationship between the main circuit parameter(the inductor L, the dc side capacitor C, and the voltage of capacitor Uc) and compensation property is analyzed and the estimate formulas to determine the main circuit parameter are given in this paper. Which gives the theory foundation to design DC side APF. By employing the proposed formulas, the proto type of dc side APF is founded and experimented. The experimental results meet with the theoretic analysis. Keyword：DC side active power filter, main circuit, compensation performance