摘要
单周控制理论(OCC)因其控制结构简单,且不需要复杂的数学计算等优点目前已被广泛用于APF的控制。其中直流侧有源电力滤波器并联在整流桥的直流侧,对整流类负载进行谐波治理有很大的技术优势。本文分析了单周控制DC侧APF电路结构和基本原理,给出了主电路的主要参数(电感、直流侧储能电容C)的设计和选取标准。建立了单周控制直流侧APF的大信号模型,在此基础上进行了控制系统中PI调节器设计,将控制系统校正为典型II型系统,从而消除了稳态误差、提高了抗扰性能。为直流侧有源电力滤波器的综合设计提供了理论依据。样机试验结果证明了文中理论分析和设计的正确性。
One-cycle control （OCC） theory is widely used in the control of APF because of its simple structure and free of complex digital computing process. The DC side active power filter（APF） is shunted at the DC side of rectifier bridge, which has great technical advantages in harmonic suppressing for rectifier load. The circuit topology and basic principle of DC side APF by OCC are first analyzed, then the estimated formulas and design to determine the main circuit parameters, such as the APF inductor, the DC side capacitor of APF, are given in this paper. The large signal model for DC side APF is derived based on energy balance, then the design for PI controller about APF＇ s control system is accomplished, and the control system is corrected to be typical type Ⅱ which can eliminate the steady error and improve the anti-disturbing ability. The paper gives the theoretical basis to comprehensively design the DC side APF. The theoretical analysis and design are verified by prototype experiments.
出处
《电工电能新技术》
CSCD
北大核心
2006年第4期34-38,共5页
Advanced Technology of Electrical Engineering and Energy
