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LCL型APF逆变器侧电流控制新方法

A Novel Inverter Current Control Strategy for LCL-based Shunt APF
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摘要 提出了一种基于逆变器侧电流反馈的LCL型有源电力滤波器(APF)电流闭环控制方法,该方法在传统单一逆变器侧电流反馈控制基础上,增加了LCL滤波电容电流的反馈调节,以提高系统控制精度并抑制LCL型滤波器与电网参数的谐振。理论分析和实验结果表明,相对于传统单一逆变器侧电流反馈控制和网侧电流反馈结合滤波电容电流反馈控制的两种典型算法,基于该控制策略的电流闭环控制系统具有较大的稳定裕度和阻尼作用,相应地,系统具有较强的稳定性和较好的谐振抑制能力。 A novel inverter current feedback control strategy for LCL-based shunt active power filter(APF) is proposed.In this method,the inner capacitor current regulation is added to the traditional inverter current feedback control,to increase the control accuracy and suppress the resonance between the LCL filter and the power grid.Theoretical analysis,simulation and experimental results show that,comparing with the two traditional control methods of the simplex inverter current feedback control and the grid current feedback control with inner capacitor current regulation,the current close-loop control system based on the new method has larger stability margin and damping action,in other words,this system has stronger stability and resonance inhibiting ability.
作者 许胜 许杏桃
出处 《电力电子技术》 CSCD 北大核心 2016年第2期37-39,80,共4页 Power Electronics
基金 江苏省高校自然科学研究项目(14KJB470008) 泰州市科技支撑计划项目(TG201416)~~
关键词 有源电力滤波器 电流反馈控制 电容电流 active power filter current feedback control capacitor current
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参考文献9

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