STUDY ON BROADBAND OSCILLATION CHARACTERISTICS CONSIDERING INTERACTION BETWEEN NEW ENERGY STATIONS

Ma Yanfeng; Chen Xin; Liu Xinyuan; Zhao Shuqiang; Jiang Weijian

doi:10.19912/j.0254-0096.tynxb.2022-1568

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Acta Energiae Solaris Sinica ›› 2024, Vol. 45 ›› Issue (1) : 563-573. DOI: 10.19912/j.0254-0096.tynxb.2022-1568

STUDY ON BROADBAND OSCILLATION CHARACTERISTICS CONSIDERING INTERACTION BETWEEN NEW ENERGY STATIONS

Ma Yanfeng¹, Chen Xin^1,2, Liu Xinyuan^1,3, Zhao Shuqiang¹, Jiang Weijian⁴

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Abstract

Compared with the single-source grid-connected system, the broadband oscillation analysis of the multi-source grid-connected system, represented by the wind-PV system, becomes more complicated due to the interaction between the stations. In this paper, a small signal model of the system is established by using the graphical modeling method and verified by simulation. Then, the broadband oscillation mode is analyzed by the eigenvalue analysis method to find out the interaction mode of wind farm and photovoltaic power station. Impedance method is used to study the interaction between renewable energy stations and analyze the influencing factors. The research results show that the interaction between renewable energy stations depends on the relative size and phase of the equivalent admittance of the stations, and the grid-connected distance and output ratio of renewable energy stations will affect the interaction between the stations and thus affect the system interaction mode. The analysis of the interaction rule of different positions and operating conditions of renewable energy can provide certain guidance for the access and operation of large-scale renewable energy.

Key words

wind farms / photovoltaic power system / power system stability / broadband oscillation / interaction between stations

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Ma Yanfeng, Chen Xin, Liu Xinyuan, Zhao Shuqiang, Jiang Weijian. STUDY ON BROADBAND OSCILLATION CHARACTERISTICS CONSIDERING INTERACTION BETWEEN NEW ENERGY STATIONS[J]. Acta Energiae Solaris Sinica. 2024, 45(1): 563-573 https://doi.org/10.19912/j.0254-0096.tynxb.2022-1568

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