The invention discloses an electric vehicle direct-current charging pile and a charging station. The electric vehicle DC charging pile comprises an AC/DC rectification module which comprises a rectification DC side and a rectification AC side; a DC/AC inversion module which comprises an inversion direct current side and an inversion alternating current side; and an inversion module control unit which is used for generating an inversion control instruction according to the acquired current signal and voltage signal of the alternating-current power distribution network side, a preset harmonic distortion rate and a preset power factor when the AC/DC rectification module charges the electric vehicle. The DC/AC inversion module is also used for responding to the inversion control instruction, acquiring electric energy from the AC/DC rectification module and inverting the electric energy into an alternating current waveform corresponding to the inversion control instruction, so that the current waveform fed into the alternating current power distribution network side by the direct current charging pile meets a preset harmonic distortion rate and a preset power factor. The direct-currentcharging pile for the electric automobile improves the electric energy quality of a power grid.
本发明公开了电动汽车直流充电桩及充电站。该电动汽车直流充电桩包括:AC/DC整流模块,其包括整流直流侧和整流交流侧;DC/AC逆变模块,其包括逆变直流侧和逆变交流侧;逆变模块控制单元,用于在所述AC/DC整流模块向电动车充电时,根据获取的交流配电网侧的电流信号和电压信号、预先设定的谐波畸变率及功率因数,生成逆变控制指令;所述DC/AC逆变模块还用于响应于所述逆变控制指令,从AC/DC整流模块获取电能并逆变为与所述逆变控制指令对应的交流波形,以使得直流充电桩馈入到交流配电网侧的电流波形满足预先设定的谐波畸变率及功率因数。该电动汽车直流充电桩改善了电网的电能质量。
Electric vehicle direct-current charging pile and charging station
电动汽车直流充电桩及充电站
2021-02-09
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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