A Utility-Interfaced Phase-Modulated High-Frequency Isolated Dual LCL DC/AC Converter

被引：40

作者：

Li, Xiaodong ^{[1
]}

Bhat, Ashoka K. S. ^{[2
]}

机构：

[1] Macau Univ Sci & Technol, Fac Informat Technol, Macau, Peoples R China

[2] Univ Victoria, Dept Elect & Comp Engn, Victoria, BC V8W 3P6, Canada

来源：

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2012年 / 59卷 / 02期

基金：

加拿大自然科学与工程研究理事会;

关键词：

DC/AC power conversion; high-frequency transformer; resonant power conversion; utility interconnection; SERIES RESONANT CONVERTER; INVERTER; DESIGN; SYSTEM; ARRAY;

D O I：

10.1109/TIE.2011.2158044

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper presents a phase-modulated high-frequency isolated dc/ac converter as the grid interface in a distributed generation system. The converter includes two full-bridge HF LCL-type resonant inverters working at fixed duty cycle. The power control is realized by means of the phase-shift between the two bridges. Using the LCL-type resonant tank, zero-voltage-switching is achieved for all switches for the whole power range. With the phase-shift modulated sinusoidally, a full-wave rectified output current synchronized with the utility line is obtained, which is unfolded and fed to the single-phase utility line. The analysis is verified with computer simulation results. Experimental data based on a 500-W prototype circuit is included for validation purpose.

引用

页码：1008 / 1019

页数：12

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