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ISSN 0254-0096 CN 11-2082/K

太阳能学报 ›› 2022, Vol. 43 ›› Issue (3): 163-170.DOI: 10.19912/j.0254-0096.tynxb.2020-0662

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应用于LC型逆变器电容电压有源阻尼控制的微分器

侯世英, 叶江丹, 赵凯林, 王永胜   

  1. 重庆大学电气工程学院,输配电装备及系统安全与新技术国家重点实验室,重庆 400044
  • 收稿日期:2020-07-13 发布日期:2022-09-28
  • 通讯作者: 侯世英(1962—),女,博士、教授,主要从事分布式发电技术方面的研究。houshiying@163.com

ACCURATE DERIVATIVES FOR LC-TYPE OFF-GRID INVERTER WITH CAPACITOR VOLTAGE ACTIVE DAMPING CONTROL STRATEGY

Hou Shiying, Ye Jiangdan, Zhao Kailin, Wang Yongsheng   

  1. State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China
  • Received:2020-07-13 Published:2022-09-28

摘要: 以单相LC型离网逆变器为研究对象,针对传统微分器的不足,提出一种改进型数字微分器设计方法,改进型微分器与理想微分器的频率特性基本相同。最后,将改进型的微分器应用于电容电压有源阻尼控制策略中,硬件实验结果证实了所提方法的可行性。

关键词: 有源阻尼, 微分器, LC型离网逆变器, 电容电压

Abstract: Addressing the shortcomings of the traditional derivatives, this paper proposes a design method of improved digital derivatives with the research object of single-phase LC off-grid inverter. The improved derivative proves to have the same frequency characteristics as the ideal derivative. Finally, the improved derivative is applied in the capacitor voltage active damping control strategy. Experimental results confirm the feasibility of the proposed method.

Key words: active damping, derivatives, LC-type off-grid inverter, capacitor voltage

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