Accurate power sharing and harmonic mitigation scheme for parallel operation of single-phase voltage source inverters

被引：3

作者：

Pham, Minh-Duc ^{[1
]}

Lee, Hong-Hee ^{[1
]}

机构：

[1] Univ Ulsan, Dept Elect Engn, Ulsan, South Korea

来源：

JOURNAL OF POWER ELECTRONICS | 2021年 / 21卷 / 01期

关键词：

Harmonic mitigation; Stand-alone operation; Renewable energy system; Voltage source inverter; CONVERTERS; FILTER; STRATEGY; LOOP;

D O I：

10.1007/s43236-020-00159-8

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Inaccurate reactive power sharing and voltage distortion at the point of common coupling (PCC) always exist in a parallel inverter system due to feeder impedance mismatches and nonlinear load disturbances. An enhanced inverter control scheme through an output impedance adjustment is proposed to address these issues. Inverter output impedance is regulated considering fundamental and harmonic frequencies, and accurate power sharing and improved PCC voltage quality are realized at the steady state. In addition, the compensation scheme is easily applied in multiple parallel inverters without any prior knowledge of the feeder impedance. Experimental results with three parallel inverters validate the feasibility of the proposed control scheme.

引用

页码：164 / 172

页数：9

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