The invention relates to an electric vehicle charging pile rectifying circuit based on a multi-pulse converter, which is characterized in that three six-pulse diode bridge rectifiers are connected in parallel and in series to the secondary side of a three-phase power supply, the secondary side of the three-phase power supply comprises a power supply S1, a power supply S2 and a power supply S3, the power supply S1 and the power supply S3 adopt a zigzag-zag zigzag connection mode, the power supply S2 adopts a Y star connection mode, and the power supply S1 and the power supply S3 adopt a Y star connection mode. Meanwhile, the three-phase power supply of the power supply S1 integrally lags behind the primary side external main input power supply; a three-phase power supply of the power supply S2 and a primary side external main input power supply are in the same direction; the whole three-phase power supply of the power supply S3 is ahead of the primary side external main input power supply. According to the rectification circuit, PWM pulse broadband modulation is not needed, the complexity of a control circuit can be remarkably reduced, and the cost can be reduced. Meanwhile, the circuit current quality can be effectively improved, low-order harmonic pollution is reduced, and the method has a wider application range and prospect.
本发明涉及一种基于多脉冲变流器的电动汽车充电桩整流电路,为三个六脉冲二极管桥式整流器并联串接在三相电源的二次侧,三相电源二次侧包括电源S1、电源S2和电源S3,电源S1和电源S3采用zig‑zag锯齿形连接方式,电源S2采用Y星型连接方式,同时电源S1的三相电源整体滞后于一次侧外部主输入电源;电源S2的三相电源与一次侧外部主输入电源同向;电源S3的三相电源整体超前于一次侧外部主输入电源。本发明的整流电路无需采用PWM脉冲宽带调制,能够显著降低控制电路的复杂性,进而有利于降低成本。同时本发明能够有效改善线路电流质量,同时减少低次谐波污染,具有更广泛的适用范围和前景。
Electric vehicle charging pile rectification circuit based on multi-pulse converter
一种基于多脉冲变流器的电动汽车充电桩整流电路
2022-04-12
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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