The invention discloses an electric energy quality regulator for an electric vehicle charging pile, and the regulator is characterized in that a series compensation circuit is used for obtaining the voltage of a power grid and transmitting the voltage to a controller circuit; the controller circuit generates a first PWM modulation signal according to the power grid voltage; the series compensation circuit compensates the voltage of the power grid; the parallel compensation circuit is used for acquiring load current and sending the load current to the controller circuit; the controller circuit generates a second PWM modulation signal according to the load current; the parallel compensation circuit compensates the load current; the series compensation circuit is connected in parallel with the direct-current energy storage circuit; the parallel compensation circuit is connected in parallel with the direct-current energy storage circuit; the direct-current energy storage circuit is connected in parallel with the charging pile through a direct-current bus; the controller circuit is used for acquiring a direct-current voltage on the direct-current bus and generating a third PWM modulation signal; and the superconducting magnetic energy storage circuit compensates the direct-current voltage according to the third PWM modulation signal. According to the technical scheme, the system stability and the power supply quality can be improved.
本发明公开了一种电动汽车充电桩电能质量调节器,其中,串联补偿电路用于获取电网电压并发送至控制器电路;控制器电路根据电网电压生成第一PWM调制信号;串联补偿电路对电网电压进行补偿;并联补偿电路用于获取负载电流并发送至控制器电路;控制器电路根据负载电流生成第二PWM调制信号;并联补偿电路对负载电流进行补偿;串联补偿电路与直流储能电路并联;并联补偿电路与直流储能电路并联;直流储能电路用于通过直流母线与充电桩并联;控制器电路用于获取直流母线上的直流电压,并生成第三PWM调制信号;超导磁储能电路根据第三PWM调制信号对直流电压进行补偿。本发明提供的技术方案,可提高系统稳定性和供电质量。
Electric energy quality regulator for electric vehicle charging pile
一种电动汽车充电桩电能质量调节器
2024-02-23
Patent
Elektronische Ressource
Chinesisch
Electric vehicle charging method, electric vehicle and charging pile
Europäisches Patentamt | 2021
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