STABILITY CONTROL OF NEW ENERGY CHARGING STATION INTEGRATED SYSTEM BASED ON INTERLEAVED PARALLEL VDCM

Xue Yu; Gao Bolin; He Bin; Zhong Wei; Liang Ziyong; Cao Jiale

doi:10.19912/j.0254-0096.tynxb.2024-1667

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (6) : 376-384. DOI: 10.19912/j.0254-0096.tynxb.2024-1667

STABILITY CONTROL OF NEW ENERGY CHARGING STATION INTEGRATED SYSTEM BASED ON INTERLEAVED PARALLEL VDCM

Xue Yu¹, Gao Bolin¹, He Bin², Zhong Wei¹, Liang Ziyong¹, Cao Jiale²

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Abstract

Conventional control strategies are difficult to adapt to the actual demand changes when encountering high power charging demand and grid voltage fluctuations. To this end, the interleaved parallel virtual DC machine control strategy is used to improve the stable operation capability of new energy charging station in this paper. The interleaved parallel DC/DC converter is used in the charging station system, which can effectively reduce the electric vehicle charging station output current ripple and improve the power quality and stability of the charging station; Meanwhile, the DC/DC converter using VDCM control strategy can provide stable and reliable inertia and damping support for the output of the new energy charging station, which realizes the precise control of the output voltage and current of the new energy charging station. Finally, the small signal model is used to analyses the effect of rotational inertia and damping coefficients on the stability of the charging system. And the physical simulation model of the new energy charging system is constructed based on the Matlab/Simulink software, which was used to simulate and validate the two models of electric cars and electric heavy trucks to connect/disconnect the charging station.

Key words

wind turbine generators / charging stations / virtual motor / interleaved parallel / small signal analysis

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Xue Yu, Gao Bolin, He Bin, Zhong Wei, Liang Ziyong, Cao Jiale. STABILITY CONTROL OF NEW ENERGY CHARGING STATION INTEGRATED SYSTEM BASED ON INTERLEAVED PARALLEL VDCM[J]. Acta Energiae Solaris Sinica. 2025, 46(6): 376-384 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1667

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