The invention provides a frequency modulation method and system based on a virtual power plant, and relates to the technical field of electric power systems.The frequency modulation proportion of an energy storage system and a new energy battery swap station is sequentially adjusted according to a frequency modulation weight coefficient p through obtained maximum charging rate, maximum discharging rate and residual capacity data; meanwhile, according to the obtained power conversion data of each time period, analysis is carried out, a power conversion index HDZs is generated, the frequency, the amplitude range and the response speed of frequency fluctuation are analyzed and processed to generate a frequency modulation response characteristic TPXy, and a correlation curve Q is established based on the power market price characteristic JGTz and load prediction data FHYc; based on the frequency modulation response characteristic TPXy, determining the frequency modulation proportion of the energy storage system corresponding to the frequency modulation weight coefficient p and the new energy battery swap station, and based on the correlation curve Q and the battery swap index HDZs, performing analysis and generating a frequency modulation strategy for a plurality of batteries of the new energy battery swap station.

    本发明提供一种基于虚拟电厂的调频方法及系统,涉及电力系统技术领域,本发明通过获取的最大充电速率、最大放电速率、剩余容量数据依次对储能系统与新能源换电站的调频比例以调频权重系数p进行调整,同时根据获取的每一时间段的换电数据进行分析并生成换电指数HDZs,对频率波动的频率、振幅范围、响应速度进行分析处理生成调频响应特性TPXy,并基于电力市场价格特征JGTz和负荷预测数据FHYc建立关联曲线Q,基于调频响应特性TPXy确定调频权重系数p对应的储能系统与新能源换电站的调频比例,基于关联曲线Q和换电指数HDZs进行分析并生成对新能源换电站若干电池的调频策略。


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    Title :

    Frequency modulation method and system based on virtual power plant


    Additional title:

    一种基于虚拟电厂的调频方法及系统


    Contributors:
    WANG HAO (author) / HUANG YIJUN (author) / CHEN YONGTAO (author) / LING YUSHI (author) / SHI LIUYANG (author) / LI JINXUAN (author) / ZHANG YANG (author) / WEI GUO'EN (author)

    Publication date :

    2024-05-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G06Q Datenverarbeitungssysteme oder -verfahren, besonders angepasst an verwaltungstechnische, geschäftliche, finanzielle oder betriebswirtschaftliche Zwecke, sowie an geschäftsbezogene Überwachungs- oder Voraussagezwecke , DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES



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