广义有源电力滤波器的两种新控制方法  

Two New Control Methods for Generalized Active Power Filter

作　　者：薛畅[1] 王建赜[1] 纪延超[1] 江滨浩[1] 

机构地区：[1]哈尔滨工业大学,电气工程及自动化学院,黑龙江哈尔滨150001

出　　处：《电力电子技术》2013年第5期26-28,共3页Power Electronics

摘　　要：广义有源电力滤波器(GAPF)是一种非跟踪型滤波器,通过输出与电网同步的基波正序电压,可在无需检测负载电流的情况下有效实现无功补偿、谐波抑制、负序滤波及稳定电压等功能。详述了GAPF的拓扑结构、工作原理,并推导出数学模型。GAPF的传统控制方法为单环相位角控制,该方法虽简单,但补偿精度不高,易出现过补或欠补现象。为克服上述缺陷,提出两种新控制方法,可提高补偿精度,实现单位功率因数补偿。实验结果验证了理论分析的正确性和新控制方法的可行性。Generalized active power fiher（GAPF） is a non-tracking filter.Through outputting fundamental positive sequence voltages synchronized with system it can achieve reactive power compensation, harmonic suppression, negative sequence filtering and voltage stabling effectively without the need of load current detection.The topology and working principle of GAPF are described and the mathematical model is derived.The conventional control method of GAPF is single-loop phase angle control which is simple but the compensation precision is low and over compensation or owe compensation phenomenon can easily appear.To overcome this defect,two new control methods are proposed which can improve compensation precision and achieve unit power factor compensation.The correctness of theoretical analysis and effectiveness of the proposed control methods are verified by experimental results.

关 键 词：广义有源电力滤波器 综合补偿 协调控制 

分 类 号：TN713[电子电信—电路与系统]