Single-Phase Full-Bridge Resonant DC Link Inverter with the Function of Improving Steady Voltage Across DC Link

WANG Qiang; LI Bing; WANG Tian-shi; LIU Xiao-qin

doi:10.3969/j.issn.0372-2112.2019.09.028

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Single-Phase Full-Bridge Resonant DC Link Inverter with the Function of Improving Steady Voltage Across DC Link

更新时间：2025-07-16

- Single-Phase Full-Bridge Resonant DC Link Inverter with the Function of Improving Steady Voltage Across DC Link
- Acta Electronica Sinica Vol. 47, Issue 9, Pages: 2012-2016(2019)
- 作者机构：
  
  1. 辽宁石油化工大学信息与控制工程学院,辽宁,抚顺,113001
  2. 辽宁石油化工大学石油化工过程控制国家级实验教学示范中心,辽宁,抚顺,113001
  3. 辽宁石油化工大学信息与控制工程学院,辽宁,抚顺,113001
  4. 辽宁石油化工大学石油化工过程控制国家级实验教学示范中心,辽宁,抚顺,113001
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0372-2112.2019.09.028
  CLC： TM464
- Published Online：25 September 2019，
  
  Published：2019
- 稿件说明：
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WANG Qiang, LI Bing, WANG Tian-shi, et al. Single-Phase Full-Bridge Resonant DC Link Inverter with the Function of Improving Steady Voltage Across DC Link[J]. Acta Electronica Sinica, 2019, 47(9): 2012-2016.
DOI：

WANG Qiang, LI Bing, WANG Tian-shi, et al. Single-Phase Full-Bridge Resonant DC Link Inverter with the Function of Improving Steady Voltage Across DC Link[J]. Acta Electronica Sinica, 2019, 47(9): 2012-2016. DOI： 10.3969/j.issn.0372-2112.2019.09.028.

摘要

为改善直流电压利用率，提出了一种具有提升直流环节稳态电压功能的单相全桥谐振直流环节软开关逆变器，利用辅助电路中的变压器可以将电能补充到直流母线上等效为电压源的钳位电容，使直流环节稳态电压高于直流电源电压，提高了逆变器输出线电压的基波幅值和直流电压利用率.文中分析了电路的工作状态.在4kW样机上的实验结果表明逆变器的主开关和辅助开关能完成软切换.因此，该拓扑结构对于研发高性能谐振直流环节逆变器具有一定的借鉴意义.

Abstract

A single-phase full-bridge resonant DC(Direct Current) link soft-switching inverter with the function of improving steady voltage across DC link is proposed to improve the utilization of DC voltage. The electrical energy can be supplemented via the transformer in the auxiliary circuit to the clamp capacitor equivalent to the voltage source on the DC bus so that the steady voltage across DC link is higher than the DC power supply voltage

which improves the fundamental wave amplitude of the output line voltage and DC voltage utilization ratio of the inverter. This paper analyzes the working process of the circuit.The experimental results on the 4kW prototype show that the main switch and auxiliary switch of the inverter can achieve soft-switching. Therefore

the proposed topology has certain reference significance for the development of high-performance resonant DC link inverters.

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