实时电流跟踪型并网逆变器谐波抑制方法  

Approach of Harmonic Suppression for Real-Time Current-Tracking Grid-Connected Inverter

作　　者：王湘明[1] 周翔[1] 胡维哲[2] 董磊书[3] 

机构地区：[1]沈阳工业大学信息科学与工程学院,辽宁沈阳110178 [2]辽阳供电公司,辽宁辽阳111000 [3]沈阳工业大学自控技术研究所,辽宁沈阳110027

出　　处：《沈阳大学学报（自然科学版）》2012年第5期44-50,共7页Journal of Shenyang University：Natural Science

摘　　要：提出了一种改进的带非线性负载的三相并网逆变器谐波抑制方法,此方法不仅简单,而且与传统的谐波抑制方法相比具有较强的鲁棒性.利用检测电流的方式以及两个PI控制器的调节作用实现谐波电流的实时跟踪.通过Matlab/Simulink仿真结果表明提出的实时电流跟踪型并网逆变器谐波抑制策略不仅可以抑制非线性负载带给电网的谐波干扰,而且当负载大小变化后仍可以实现有效抑制.An improved approach of harmonic suppression oI three-phase grid-connected inverter with nonlinear load is proposed. It is not only simple but also the robustness is stronger than the conventional harmonic suppression method. The mode of current detection and the adjusting of two PI controllers are used to achieve the real-time harmonic current tracking. The results of simulation by Matlab/Simulink show that the method of harmonic suppression for real-time current-tracking gridconnected inverter proposed can not only restrain the harmonic interference, which is given by the nonlinear load, but also implement efficacious suppression even though we change the magnitude of the load.

关 键 词：并网逆变器 实时电流跟踪 非线性负载 谐波抑制 

分 类 号：TM464[电气工程—电器]