Parallel Resonant DC Link Inverter with Low-Loss Auxiliary Circuit

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

doi:10.12263/DZXB.20200021

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Parallel Resonant DC Link Inverter with Low-Loss Auxiliary Circuit

CORRESPONDENCE | 更新时间：2025-12-08

- Parallel Resonant DC Link Inverter with Low-Loss Auxiliary Circuit
- ACTA ELECTRONICA SINICA Vol. 50, Issue 11, Pages: 2813-2816(2022)
- 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
- 作者简介：
- 基金信息：
- DOI：10.12263/DZXB.20200021
  CLC： TM464
- Received：25 December 2019，
  
  Revised：2020-03-09，
  
  Published：25 November 2022
- 稿件说明：
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王强,李森,王天施等.辅助电路损耗低的并联谐振直流环节逆变器[J].电子学报,2022,50(11):2813-2816.

WANG Qiang,LI Sen,WANG Tian-shi,et al.Parallel Resonant DC Link Inverter with Low-Loss Auxiliary Circuit[J].ACTA ELECTRONICA SINICA,2022,50(11):2813-2816.
王强,李森,王天施等.辅助电路损耗低的并联谐振直流环节逆变器[J].电子学报,2022,50(11):2813-2816. DOI： 10.12263/DZXB.20200021.

WANG Qiang,LI Sen,WANG Tian-shi,et al.Parallel Resonant DC Link Inverter with Low-Loss Auxiliary Circuit[J].ACTA ELECTRONICA SINICA,2022,50(11):2813-2816. DOI： 10.12263/DZXB.20200021.

摘要

为使逆变器工作在高效率状态，本文设计了辅助电路损耗低的并联谐振直流环节逆变器，仅在直流环节电压上升的过程中，触发位于直流环节的辅助电路的谐振；在直流环节电压下降过程中和负载电流瞬时值较低时，辅助电路不发生谐振，这有利于实现辅助电路的低功耗.说明了电路的工作流程.实验波形显示出开关器件取得了软切换.因此，该电路结构有利于优化逆变器效率.

Abstract

In order to realize efficient work of the inverter

a parallel resonant dc link inverter with low-loss auxiliary circuit is proposed. The resonance of the auxiliary circuit on the dc link is triggered only in the rising process of the voltage across the dc link. In the descending process of the voltage across the dc link

or when the instantaneous value of load current is low

the auxiliary circuit does not resonate

which is beneficial to realizing the low-loss of the auxiliary circuit. The working process of the circuit is illustrated. The experimental results show that the switching device has achieved soft switching. Therefore

this topology structure is instrumental in optimizing the efficiency of the inverter.

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references

CHU Enhui , LI Si , XIE Haolin , et al . RDCL three-phase inverter and load adaptive commutation control [J]. IET Power Electronics , 2019 , 12 ( 3 ): 505 ‑ 514 .

王强 , 李森 , 王天施 , 等 . 新型三相谐振直流环节逆变器 [J]. 电子学报 , 2021 , 49 ( 8 ): 1641 - 1644 .

WANG Qiang , LI Sen , WANG Tian-shi , et al . Novel three-phase resonant DC link inverter [J]. Acta Electronica Sinica , 2021 , 49 ( 8 ): 1641 - 1644 . (in Chinese)

WANG Qiang , WANG Youzheng . Resonant DC link soft-switching inverter with low-loss auxiliary circuit [J]. International Journal of Electronics , 2019 , 106 ( 10 ): 1602 ‑ 1615 .

CHEN Yenan , XU Dehong , XI Jiangbei , et al . A ZVS grid-connected full-bridge inverter with a novel ZVS SPWM scheme [J]. IEEE Transactions on Power Electronics , 2016 , 31 ( 5 ): 3626 ‑ 3638 .

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