RESEARCH ON SINGLE-PHASE CURRENT SOURCE GRID-CONNECTED INVERTER BASED ON BOUNDARY VOLTAGE CONTROL

Wang Liqiao; Li Chong; Huang Haiwen; Xing Xiaoshan; Tang Zhaozhao

doi:10.19912/j.0254-0096.tynxb.2024-0316

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (7) : 135-143. DOI: 10.19912/j.0254-0096.tynxb.2024-0316

Special Topics of Academic Papers at the 40th Annual Meeting of the China Association for Science and Technology

RESEARCH ON SINGLE-PHASE CURRENT SOURCE GRID-CONNECTED INVERTER BASED ON BOUNDARY VOLTAGE CONTROL

Wang Liqiao¹, Li Chong¹, Huang Haiwen², Xing Xiaoshan¹, Tang Zhaozhao¹

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Abstract

A boundary voltage mode control strategy is proposed in this study, which makes it able to achieve zero current switching （ZCS） for single-phase full-bridge current source inverter. The proposed control strategy can also effectively reduce the inductance required on the DC side. The basic principle of boundary voltage control and the conditions for achieving ZCS are analyzed. Based on the area equivalence principle, the reason for reducing inductance is analyzed through mathematical derivation. On the basis of theoretical analysis, simulations and experiments were conducted. The feasibility of the proposed critical voltage control strategy is verified by simulation and experimental results.

Key words

inverter / zero current switching / photovoltaic generation / lightweight design

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Wang Liqiao, Li Chong, Huang Haiwen, Xing Xiaoshan, Tang Zhaozhao. RESEARCH ON SINGLE-PHASE CURRENT SOURCE GRID-CONNECTED INVERTER BASED ON BOUNDARY VOLTAGE CONTROL[J]. Acta Energiae Solaris Sinica. 2025, 46(7): 135-143 https://doi.org/10.19912/j.0254-0096.tynxb.2024-0316

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