Load coordination control method of new energy vehicle charging pile based on Markov chain Online publication date: Fri, 10-May-2024
by Shun Liu; Yajuan Zhou; Yue Lu; Yang Liu; Qingtao Li
International Journal of Energy Technology and Policy (IJETP), Vol. 19, No. 1/2, 2024
Abstract: In order to reduce the load peak valley difference of a charging station and improve the stability of load operation, a load coordination control method of new energy vehicle charging station based on Markov chain was proposed. The Markov chain theory is applied to determine the state transition form of the new energy vehicle charging load, and the required charging time is calculated. The least square method and inverse linear regression equation are used to predict the output load of new energy vehicle charging station. The load objective function and constraint conditions of the charging station are constructed, and the load coordination control objective is determined to achieve accurate control of the charging load. The experimental results show that after using this method, while meeting the charging demand, the peak to valley load difference can only reach 1.70 kW. This shows that the method can ensure the operation stability of a charging station.
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