The invention discloses a virtual inertia control method for an optical storage charging station participating in voltage regulation of a direct-current power distribution network, and the method comprises the steps: determining the operation condition of a system through detecting the voltage value of a direct-current bus of the power distribution network and the voltage change rate, so as to obtain the inertia compensation demand of a direct-current power distribution network system; a specific flexible virtual inertia control method in which the optical storage charging station participates in voltage regulation of the direct-current power distribution network is provided, stability analysis is performed through a built system small signal model, and a control parameter value range is obtained; the DC/DC converter is flexibly controlled to quickly charge and discharge electric energy of the optical storage device and the electric vehicle, virtual inertia is provided for the system, system inertia is enhanced, optical storage units and electric vehicle resources in the optical storage charging station are fully coordinated and utilized, the deviation time of direct-current bus voltage is effectively delayed, the decline rate of the bus voltage is reduced, and the service life of the system is prolonged. Powerful support is provided for direct current distribution network system scheduling, and the electric energy quality of the direct current distribution network is comprehensively improved.
本发明公开了一种光储充电站参与直流配电网调压的虚拟惯性控制方法,通过检测配网直流母线电压值以及电压变化率确定系统的运行工况,以获取直流配电网系统的惯性补偿需求;提出具体的光储充电站参与直流配电网调压的灵活虚拟惯性控制方法,通过搭建的系统小信号模型进行稳定性分析,得出控制参数取值范围;灵活控制DC/DC变换器快速充放光储装置及电动汽车电能,为系统提供虚拟惯性、增强系统惯性,充分协调利用光储充电站中的光储单元及电动汽车资源,有效延缓直流母线电压的偏离时间,降低母线电压的下降速率,为直流配网系统调度提供有力支持,综合改善直流配网的电能质量。
Virtual inertia control method for light storage charging station to participate in voltage regulation of direct-current power distribution network
一种光储充电站参与直流配电网调压的虚拟惯性控制方法
2024-01-05
Patent
Electronic Resource
Chinese
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