The invention provides a power grid electric energy quality treatment method and system, and the method comprises the steps: obtaining a harmonic compensation component of a DC charger based on the AC side voltage and current data of the DC charger through an improved ip-iq method when the actual output power of the DC charger is lower than a set output power threshold value; determining a voltage control compensation component based on the DC side voltage data of the DC charger; based on the harmonic compensation component and the voltage control compensation component, performing electric energy quality treatment on the direct current charger; according to the method, the compensation component of the alternating current side of the direct current charger is calculated by using an improved ip-iq method when the direct current charger is in a light load or idle state, and the compensation component is controlled by combining the voltage of the direct current side, so that electric energy quality treatment is performed on a power grid; therefore, basic charging service can be provided for the electric vehicle, electric energy quality management service can be carried out on the power grid, diversified application of the direct-current charger can be realized, and the utilization rate of the direct-current charging equipment can be obviously improved.
本发明提供了一种电网电能质量治理方法和系统,包括:当直流充电机的实际输出功率低于设定的输出功率阈值时,基于直流充电机的交流侧电压电流数据,利用改进的ip‑iq法,得到直流充电机的谐波补偿分量;基于所述直流充电机的直流侧电压数据,确定电压控制补偿分量;基于谐波补偿分量和电压控制补偿分量,对直流充电机进行电能质量治理;本发明通过直流充电机在轻载或闲置状态下,利用改进的ip‑iq法对直流充电机的交流侧的补偿分量进行计算,并结合直流侧的电压控制补偿分量,对电网进行电能质量治理;使得为电动汽车提供基础充电服务之外,还能够对电网进行电能质量治理的服务,有利于实现直流充电机的多元化应用,显著提升直流充电设备的利用率。
Power grid electric energy quality treatment method and system
一种电网电能质量治理方法和系统
2024-04-30
Patent
Elektronische Ressource
Chinesisch
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