电子学报 ›› 2022, Vol. 50 ›› Issue (11): 2813-2816.DOI: 10.12263/DZXB.20200021

• 科研通信 • 上一篇    下一篇

辅助电路损耗低的并联谐振直流环节逆变器

王强1,2, 李森1,2, 王天施1,2, 刘晓琴1,2   

  1. 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
  • 收稿日期:2019-12-25 修回日期:2020-03-09 出版日期:2022-11-25
    • 作者简介:
    • 王 强 男,1981年10月出生于辽宁省沈阳市,博士,现为辽宁石油化工大学信息与控制工程学院副教授,硕士研究生导师,主要研究方向为软开关变换器的电路拓扑及控制.E‑mail: master2007@126.com
      李 森 男,1993年4月出生于河北省张家口市,现为辽宁石油化工大学信息与控制工程学院硕士研究生,主要研究方向为软开关变换器的电路拓扑及控制.E‑mail: 1752425267@qq.com
    • 基金资助:
    • 国家自然科学基金(51207069);辽宁省教育厅科学研究经费项目(L2019017)

Parallel Resonant DC Link Inverter with Low-Loss Auxiliary Circuit

WANG Qiang1,2, LI Sen1,2, WANG Tian-shi1,2, LIU Xiao-qin1,2   

  1. 1.College of Information and Control Engineering, Liaoning Shihua University, Fushun, Liaoning 113001, China
    2.National Experimental Teaching Demonstration Center of Petrochemical Process Control, Fushun, Liaoning 113001, China
  • Received:2019-12-25 Revised:2020-03-09 Online:2022-11-25 Published:2022-11-19
    • Supported by:
    • National Natural Science Foundation of China(51207069);Scientific Research Fund Project of Education Department of Liaoning Province(L2019017)

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.

关键词: 逆变器, 直流环节, 辅助电路, 零电压切换, 低功耗, 谐振

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.

Key words: inverter, DC(Direct Current) link, auxiliary circuit, zero-voltage switching, low-loss, resonance

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