RESEARCH ON POWER DISTRIBUTION OF PHOTOVOLTAIC AC/DC HYBRID MICROGRID&#x02014;Based On Improved Droop Control Strategy

Cai Hao; Tang Jing; Shi Kai; Feng Fei; Si Qiang

doi:10.19912/j.0254-0096.tynxb.2024-0549

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (5) : 227-234. DOI: 10.19912/j.0254-0096.tynxb.2024-0549

RESEARCH ON POWER DISTRIBUTION OF PHOTOVOLTAIC AC/DC HYBRID MICROGRID—Based On Improved Droop Control Strategy

Cai Hao^1,2, Tang Jing¹, Shi Kai³, Feng Fei¹, Si Qiang¹

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Abstract

Based on the traditional U-I droop control strategy, this article proposes a power allocation scheme for photovoltaic AC/DC hybrid microgrids based on improved droop control. Firstly, introducing virtual negative impedance to eliminate bus voltage fluctuations caused by line impedance and effectively improve the power distribution effect of photovoltaic power generation. Subsequently, voltage compensation based on virtual impedance was added to avoid system disturbances caused by voltage drop the impact of virtual negative impedance values and droop coefficient parameter changes on the stability of photovoltaic AC/DC hybrid microgrid systems in improved droop control strategies was explored. Finally, simulation experiments were conducted using the RT-LAB experimental platform, proving that the proposed strategy is effective and can improve the stability of the system.

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microgrid / photovoltaic power generation / power allocation / improving droop control

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Cai Hao, Tang Jing, Shi Kai, Feng Fei, Si Qiang. RESEARCH ON POWER DISTRIBUTION OF PHOTOVOLTAIC AC/DC HYBRID MICROGRID—Based On Improved Droop Control Strategy[J]. Acta Energiae Solaris Sinica. 2025, 46(5): 227-234 https://doi.org/10.19912/j.0254-0096.tynxb.2024-0549

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