The invention discloses a power grid primary frequency modulation multi-element comprehensive control method and system based on a V2G technology, relates to the technical field of power grid frequency modulation, and solves the problem that an optimal control effect cannot be achieved due to the fact that an existing power grid primary frequency modulation control strategy after an electric vehicle is added does not comprehensively consider the battery state of the electric vehicle and the travel demand of a user. According to the scheme, the method comprises the steps of obtaining real-time parameters after the electric vehicle accesses a power grid; in response to the frequency modulation instruction, calculating the frequency change rate of the power grid according to the frequency deviation of the power grid, and selecting to execute an improved virtual inertia control strategy introducing a health factor or an adaptive droop control strategy with a variable priority coefficient as an electric vehicle battery control strategy according to the frequency change rate of the power grid and the frequency deviation of the power grid; factors such as the battery state of an electric vehicle and user travel requirements are considered, multi-factor collection is considered for adaptive control, and corresponding control strategies are adopted in different stages of frequency disturbance, so that effective frequency support is provided for a power grid.
本发明公开了基于V2G技术的电网一次调频多元综合控制方法及系统,涉及电网调频技术领域,解决现有电动汽车加入后的电网一次调频控制策略没有综合考虑电动汽车电池状态和用户出行需求,无法达到最优控制效果的问题,方案要点是:获取电动汽车接入电网后的实时参数;响应于调频指令,根据电网的频率偏差计算电网的频率变化率,根据电网的频率变化率和电网的频率偏差选择执行引入健康因子的改进虚拟惯性控制策略或执行优先级系数可变的自适应下垂控制策略作为电动汽车电池控制策略;通过考虑电动汽车电池状态、用户出行需求等因素,考虑多因素归集进行自适应控制,通过在频率扰动不同阶段采取对应控制策略,为电网提供有效频率支撑。
Power grid primary frequency modulation multi-element comprehensive control method and system based on V2G technology
基于V2G技术的电网一次调频多元综合控制方法及系统
2024-12-24
Patent
Electronic Resource
Chinese
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