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

Wang Yongsheng; Hou Shiying; Ye Jiangdan; Zhao Kailin

doi:10.19912/j.0254-0096.tynxb.2020-0662

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Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (3) : 163-170. DOI: 10.19912/j.0254-0096.tynxb.2020-0662

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

Hou Shiying, Ye Jiangdan, Zhao Kailin, Wang Yongsheng

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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.

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active damping / derivatives / LC-type off-grid inverter / capacitor voltage

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Hou Shiying, Ye Jiangdan, Zhao Kailin, Wang Yongsheng. ACCURATE DERIVATIVES FOR LC-TYPE OFF-GRID INVERTER WITH CAPACITOR VOLTAGE ACTIVE DAMPING CONTROL STRATEGY[J]. Acta Energiae Solaris Sinica. 2022, 43(3): 163-170 https://doi.org/10.19912/j.0254-0096.tynxb.2020-0662

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