ECONOMIC OPTIMIZATION DESIGN METHOD OF PRIMARY FREQUENCY REGULATION PARAMETERS OF CLUSTER PHOTOVOLTAIC POWER STATIONS

Sun Ruizhe; Gao Bingtuan; Hu Zhengyang; Chen Ning

doi:10.19912/j.0254-0096.tynxb.2020-0831

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Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (4) : 204-212. DOI: 10.19912/j.0254-0096.tynxb.2020-0831

Topics on Key Technologies for Safety of Electrochemical Energy Storage Systems and Echelon Utilization of Decommissioned Power Batteries

ECONOMIC OPTIMIZATION DESIGN METHOD OF PRIMARY FREQUENCY REGULATION PARAMETERS OF CLUSTER PHOTOVOLTAIC POWER STATIONS

Sun Ruizhe¹, Gao Bingtuan¹, Hu Zhengyang¹, Chen Ning²

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Abstract

This paper proposes an optimization design method of the primary frequency regulation droop parameters that can realize the optimal economic efficiency of photovoltaic power stations for cluster photovoltaic power stations participating in the primary frequency regulation of the power grid. By simulating the droop control of the primary frequency modulation of the synchronous generator, a control scheme is designed to take into account the three parameters of the load shedding rate and the left and right droop coefficients to participate in the primary frequency modulation. Based on the establishment of a single photovoltaic power plant frequency regulation parameter optimization model, K-means clustering is used to realize the dimension reduction optimization design of the primary frequency regulation parameters of the photovoltaic cluster. Finally, a simulation analysis is carried out by taking a 5 MW photovoltaic power plant group participating in a frequency regulation as an example. The results show that the parameter economic optimization design method can greatly improve the operating economy while ensuring the stability of the photovoltaic power station frequency regulation operation.

Key words

photovoltaic power stations / frequency control / optimization / K-means clustering / droop control

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Sun Ruizhe, Gao Bingtuan, Hu Zhengyang, Chen Ning. ECONOMIC OPTIMIZATION DESIGN METHOD OF PRIMARY FREQUENCY REGULATION PARAMETERS OF CLUSTER PHOTOVOLTAIC POWER STATIONS[J]. Acta Energiae Solaris Sinica. 2022, 43(4): 204-212 https://doi.org/10.19912/j.0254-0096.tynxb.2020-0831

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