基于电容电流反馈的新型HAPF谐振抑制方法  

Resonance damping based on capacitor current feedback for HAPF

作　　者：许胜[1,2] 费树岷[1] 赵剑锋[1] 

机构地区：[1]东南大学复杂工程系统测量与控制教育部重点实验室,江苏南京210096 [2]泰州学院船舶与机电工程学院,江苏泰州225300

出　　处：《电力自动化设备》2016年第5期55-60,共6页Electric Power Automation Equipment

基　　金：国家自然科学基金资助项目(51477030);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)~~

摘　　要：针对有源电力滤波器和无功补偿电容器组成的混合型有源电力滤波器(HAPF)的系统谐振问题,提出了一种基于无功补偿电容器电流反馈的新型HAPF谐振抑制方法。该方法在传统有源电力滤波器电流控制的基础上,通过增加电容电流反馈控制环节,增强系统阻尼,抑制系统谐振。基于该方法,分别就谐波检测电流包含和不包含电容器电流2种情况,详细分析了在电网谐波电压和负载谐波电流2种谐波源激励作用下,系统发生串、并联谐振时的谐振抑制特性。理论分析和实验结果表明,该方法能够有效抑制系统串、并联谐振,提高系统稳定裕度,并对负载谐波电流具有理想的补偿效果。A strategy of resonance damping is proposed for the HAPF（Hybrid Active Power Filter） composed of APF（Active Power Filter） and reactive power compensation capacitors,which adds the capacitor current feedback control to the traditional APF current control to enhance the system damping and suppress the system resonance. The damping effect of current control on the series and parallel resonances,which are induced respectively by the grid harmonic voltage and the load harmonic current,is analyzed in two cases：the detecting current does and does not include the capacitor current. Theoretical analysis and experimental results show that,with the proposed strategy,the series and parallel system resonances are effectively suppressed,the system stability enhanced,and the load harmonic current compensated.

关 键 词：混合型有源电力滤波器 无功补偿电容器 谐振抑制 电容电流反馈控制 补偿 谐波分析 

分 类 号：TN713[电子电信—电路与系统]