The embodiment of the invention provides a power factor correction (PFC) circuit, a control method, an electric vehicle and a charging pile, the PFC circuit comprises a control module and at least one single-phase correction circuit, and the single-phase correction circuit comprises a first inductor, a second inductor, a first bridge arm, a second bridge arm and a third bridge arm. The control module is used for controlling on or off of each switch tube in a first bridge arm, a second bridge arm and a third bridge arm in the single-phase correction circuit; the single-phase correction circuit is used for performing power factor correction on single-phase alternating current provided by the alternating current circuit and converting the single-phase alternating current into direct current output to the direct current circuit, or performing power factor correction on direct current provided by the direct current circuit and converting the direct current into single-phase alternating current output to the alternating current circuit. By adopting the embodiment of the invention, the soft switching of the switching tube is realized, the conduction loss and the switching loss of the PFC circuit can be reduced, and the performance of the PFC circuit can be improved.
本申请实施例提供一种功率因数校正PFC电路、控制方法、电动车辆和充电桩,其中,PFC电路包括控制模块和至少一个单相校正电路,单相校正电路包括第一电感、第二电感、第一桥臂、第二桥臂和第三桥臂。控制模块用于控制单相校正电路中的第一桥臂、第二桥臂和第三桥臂中的各开关管导通或者关断;单相校正电路用于将交流电路提供的单相交流电进行功率因素校正并转换为输出给直流电路的直流电,或者将直流电路提供的直流电进行功率因素校正并转换为输出给交流电路的单相交流电。采用本申请实施例,实现了开关管的软切换,可降低PFC电路的导通损耗和开关损耗,可提升PFC电路的性能。
Power factor correction (PFC) circuit, control method, electric vehicle and charging pile
功率因数校正PFC电路、控制方法、电动车辆和充电桩
2022-11-29
Patent
Electronic Resource
Chinese
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 / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |
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