一种谐波注入式逆变装置研究

doi:10.11985/2019.03.013

摘要/Abstract

摘要：

课题组在前期设计了一种基于圆形变压器的多重叠加逆变装置,应用旋转磁场原理进行多重叠加来消除谐波。为解决此逆变装置开关频率低、体积重量大的问题,借鉴了有源滤波原理中谐波注入的思想,提出一种基于圆形变压器的谐波注入式逆变装置。该装置由辅助逆变器组和主体部分构成,主体部分为一个主逆变器和一个圆形变压器,辅助逆变器组包括两组三相逆变器,采用移相叠加的原理生成特定的谐波磁动势,在圆形变压器中应用旋转磁场原理注入到主逆变器的输出电压中来消除谐波。阐述了此逆变装置的结构特点以及工作原理,仿真验证了逆变装置的有效性。

关键词: 圆形变压器, 辅助逆变器, 谐波注入, 移相叠加

Abstract:

The research group designed a multi-overlapping plus-inverters device based on circular transformer, and applied the principle of rotating magnetic field to eliminate harmonics. In order to solve the problems of low switching frequency and large volume and weight of this inverter, a harmonic injection inverter based on circular transformer is proposed by using the idea of harmonic injection in active filter principle for reference. The device consists of auxiliary inverters and main parts. The main part is a main inverter and a circular transformer. The auxiliary inverters consist of two groups of three-phase inverters. The principle of phase shift superposition is used to generate a specific harmonic magnetomotive force. In the circular transformer, the principle of rotating magnetic field is applied to inject the output of the main inverters voltage to eliminate harmonics. The structure characteristics and working principle of the inverters are described. The effectiveness of the inverters is verified by simulation.

Key words: Round-shaped transformer, auxiliary inverter, harmonic injection, shift superposition

中图分类号:

TM464

张兵锋,王铁军,冯进. 一种谐波注入式逆变装置研究[J]. 电气工程学报, 2019, 14(3): 90-96.

ZHANG Bingfeng,WANG Tiejun,FENG Jin. Research on a Harmonic Injection Inverter[J]. Journal of Electrical Engineering, 2019, 14(3): 90-96.

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