The invention relates to a bidirectional charging pile system which comprises an input detection acquisition circuit, a master control conversion circuit and an output control circuit. According to the designed bidirectional charging pile system, the voltage operational amplifier in the input detection acquisition circuit can detect analog voltage drop generated by current, sampling conversion is efficiently carried out, meanwhile, the circuit has large isolation voltage, the safety of the circuit is improved, and fluctuation interference of the voltage is reduced; the master control conversion circuit can process signals of the resistance type temperature and humidity composite sensor, corresponding protection measures can be taken in time for work of the charging pile under extreme temperature and humidity conditions, safety is improved, in addition, the current loop is introduced to directly control network side current, and the defect that the current control frequency is too large is overcome. The output control circuit adopts constant voltage control, stabilizes the voltage during charging, and adjusts the voltage value and the current value through the operational amplifier and the field effect transistor to ensure stable output signals.
本申请涉及一种双向充电桩系统,包括输入检测采集电路、主控变换电路、输出控制电路。本次设计的一种双向充电桩系统,输入检测采集电路中的由电压运算放大器可以检测到电流产生的模拟压降,高效率地进行采样转换,同时,电路具有较大的隔离电压,增加了电路的安全性,减小了电压的波动干扰;主控变换电路可以处理电阻式温湿度复合传感器的信号,能够在极端温、湿度条件下,及时地对充电桩工作做出相应保护措施,提高了安全性,此外,还引入了电流环直接对网侧电流进行控制,改善了电流控制频率过大的缺点;输出控制电路采用恒压控制,在充电时稳定电压,并通过运算放大器以及场效应晶体管对电压值电流值进行调节保证稳定输出信号。
Bidirectional charging pile system
一种双向充电桩系统
2022-01-21
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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