基于磁通补偿的并联混合型有源电力滤波器  

Shunt hybrid active power filter based on magnetic flux compensation

作　　者：田军[1] 陈乔夫[1] 谢冰若[1] 张长征[1] 

机构地区：[1]华中科技大学电气与电子工程学院,湖北武汉430074

出　　处：《华中科技大学学报（自然科学版）》2008年第7期48-51,共4页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(50477047)

摘　　要：针对高电压系统,提出一种基于磁通补偿并联混合型有源电力滤波器.通过磁通补偿,使并联变压器呈现可控阻抗.基于谐波磁通补偿,并联变压器对谐波呈现近似为零的低阻抗,从而输导系统中的谐波电流流入并联变压器支路;基于基波磁通补偿,并联变压器对基波呈现连续无级可调电抗,与无源滤波器相结合构成静止无功补偿器(SVC),实时补偿系统的无功功率.建立了系统的数学模型,进行了系统的稳定性分析及稳态误差估算.实验结果表明,此滤波方案具有良好的谐波抑制和无功补偿的性能.A novel principle of shunt hybrid active power filter based on magnetic flux compensation was proposed for high voltage alternate power systems.The parallel transformer can exhibit controllable impedance based on magnetic flux compensation.The transformer can exhibit nearly zero impedance to harmonic current through harmonic magnetic flux compensations,leading harmonic current to flow into the transformer branch.The transformer can exhibit continuously adjustable reactance to fundamental current based on fundamental magnetic flux compensation to compensate reactive power together with the.The mathematical system model was established for system stability analysis and steady state error estimation.The experimental results show that the performance in harmonic suppression and reactive power compensation of the proposed scheme is satisfactory.

关 键 词：有源电力滤波器 磁通补偿 变压器 数学模型 

分 类 号：TM410.6[电气工程—电器] TN713.8[电子电信—电路与系统]