路参数及电流环跟踪控制策略是影响有源电力滤波器补偿性能的关键因素。本论文通过三相三线并联型有源电力滤波器的数学模型，讨论了主电路参数的设计方法及确定参数的大小，包括：功率开关器件的选取、直流侧电容、直流侧电压、交流侧电感。电流环控制环节要求补偿电流无误差的跟踪指令电流信号，针对无差拍控制方法具有实时性和准确性的特点，论文采用无差拍控制与SVPWM相结合的控制方案。通过无差拍控制方法得出的电压信号经SVPWM调制产生控制主电路开关器件的通断的PWM脉冲，产生补偿电流。在MATLABSIMULINK的仿真平台下搭建无差拍与SVPWM相结合的仿真模型，验证了主电路参数设计方法是合理的，分析了交流侧电感值、直流侧电压值对APF性能的影响。仿真结果表明采用无差拍与SVPWM相结合的控制方法能快速的跟踪补偿电力系统中的谐波电流，具有良好的动态性能和稳态性能。
关键词：主电路参数；无差拍；SVPWM；MATLABSIMULINK
fABSTRACT
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