ANALYSIS OF FREQUENCY CHARACTERISTICS OF TRANSMISSION END POWER GRID CONSIDERING INTEGRATION OF HYBRID NEW ENERGY STATIONS

Shao Chong; Qi Ying; Liu Wenfei; Xu Honglei; Xie Yingzhou; Jin Yongsheng

doi:10.19912/j.0254-0096.tynxb.2024-1643

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (1) : 354-365. DOI: 10.19912/j.0254-0096.tynxb.2024-1643

ANALYSIS OF FREQUENCY CHARACTERISTICS OF TRANSMISSION END POWER GRID CONSIDERING INTEGRATION OF HYBRID NEW ENERGY STATIONS

Shao Chong¹, Qi Ying², Liu Wenfei², Xu Honglei², Xie Yingzhou², Jin Yongsheng²

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Abstract

To quantitatively evaluate the frequency support performance of the transmission end power grid connected to the hybrid new energy station, the frequency characteristic transfer function is first used to tune the parameters of the frequency modulation unit of the single feed follow-up/grid construction new energy system, and a multi feed hybrid transmission end power grid frequency response model is constructed; Then, based on the closed-loop eigenvalues of the system, analyze the impact of its penetration rate on the frequency of the transmission end power grid, formulate corresponding frequency modulation contribution indicators, and establish optimization plans to obtain the optimal ratio that ensures the stability of the system frequency; Finally, time-domain simulations were conducted on the Matlab/Simulink platform to validate the correctness of the theoretical analysis presented in this paper.

Key words

power system stability / new energy / frequency response / transient analysis / delivery end power grid

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Shao Chong, Qi Ying, Liu Wenfei, Xu Honglei, Xie Yingzhou, Jin Yongsheng. ANALYSIS OF FREQUENCY CHARACTERISTICS OF TRANSMISSION END POWER GRID CONSIDERING INTEGRATION OF HYBRID NEW ENERGY STATIONS[J]. Acta Energiae Solaris Sinica. 2026, 47(1): 354-365 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1643

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