The invention discloses a power converter, a charging pile, a control method and a control device. The power converter comprises a controller and at least one power module, and the direct current output positive electrode of a power conversion circuit in each power module is connected with the positive electrode of a diode; the voltage sampling circuit is used for acquiring the anode voltage of the diode; the current sampling circuit is used for acquiring current flowing through the diode; the temperature sampling circuit is used for acquiring the temperature of the diode; the controller is used for obtaining the conduction voltage drop of the diode according to the current of the diode and the temperature of the diode; and controlling the output voltage of the power conversion circuit according to the anode voltage of the diode and the conduction voltage drop of the diode. In the embodiment of the invention, the anode voltage of the diode and the conduction voltage drop of the diode can truly reflect the output voltage of the power conversion circuit, the power conversion circuit is controlled according to the anode voltage of the diode and the conduction voltage drop of the diode, and the control accuracy of the power conversion circuit is improved.
本申请公开了一种功率变换器、充电桩、控制方法和控制装置。其中,功率变换器包括:控制器和至少一个功率模组,各功率模组中的功率变换电路的直流输出正极连接二极管的阳极;电压采样电路,用于获取二极管的阳极电压;电流采样电路,用于获取流过二极管的电流;温度采样电路,用于获取二极管的温度;控制器,用于根据二极管的电流和二极管的温度,得到二极管的导通压降;根据二极管的阳极电压和二极管的导通压降,控制功率变换电路的输出电压。本申请实施例中,二极管的阳极电压和二极管的导通压降可真实反应功率变换电路的输出电压,根据二极管的阳极电压和二极管的导通压降控制功率变换电路,提高功率变换电路控制的准确性。
Power converter, charging pile, control method and control device
一种功率变换器、充电桩、控制方法和控制装置
06.05.2025
Patent
Elektronische Ressource
Chinesisch
IPC: | H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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