广义有源电力滤波器检测与控制方法  

Study on Detecting and Control Methods of Generalized Active Power Filter

作　　者：粟时平[1] 刘桂英[1] 

机构地区：[1]长沙理工大学电气与信息工程学院,长沙410076

出　　处：《高电压技术》2007年第11期112-117,共6页High Voltage Engineering

基　　金：国家自然科学基金(50677058);湖南省自然科学基金项目(02JJY4030);长沙理工大学科学基金项目(04XXYC012)~~

摘　　要：为了抑制系统高次谐波提高电能质量,研究了广义有源电力滤波器的主电路、工作原理、指令电流检测算法及控制策略后,给出了仿真结果。理论分析和计算机仿真显示,广义有源电力滤波器通过使用高性能IGBT构成的6桥臂PWM变流器来实现主电路,通过基于αβ0正交变换的广义瞬时无功功率理论来检测指令电流和使用电流滞环控制来控制广义有源电力滤波器输出,能够实现电力系统单位功率因数补偿且功能强、性能好及指令电流检测实时性好、精度高、实现容易等特点。The generalized active power filter （GAPF） ,a new kind of active power filter that can compensate reactive power, asymmetry three-phase power, harmonic and inter-harmonic, is studied. The main circuit, operating principles, referential current detection arithmetic and control strategies of GAPF are introduced and the results of a simulative experiment on the GAPF are given. Here, a three-double-bridge arm PWM converter with advanced IGBTs is utilized to actualize the main circuit of a GAPF, a generalized instantaneous reactive power theory based on the α β0 orthogonal transformation is employed to detect the referential currents of the GAPF, and a current hysteresis control strategy is used to control outputs of the GAPF. The theoretical analysis and computer simulation show that the proposed GAPF has the characteristics of many functions, favorable performances and so on and there are the advantages of favorable real time, high precision and easy realization etc in the detection of the suggested referential currents.

关 键 词：广义有源电力滤波器 指令电流检测 广义瞬时无功功率理论 单位功率因数 检测算法 控制方法 

分 类 号：TN713.8[电子电信—电路与系统]