The invention provides an improved interleaved parallel SWISS rectifier, which comprises a three-phase power supply, and is characterized in that the three-phase power supply is respectively connectedto a, b and c phases and then connected to two interleaved parallel rectifier bridges consisting of six diodes; the middle point of each phase bridge arm of the two interleaved rectifier bridges is respectively connected with two harmonic injection circuits composed of six diodes and six IGBTs, and the two ends of each rectifier bridge are connected with two switching tubes and then are respectively connected with two DC-DC Buck type rectifiers connected in series. Compared with a traditional three-phase rectifier, the rectifier has the advantages that alternating-current side current harmonics under the switching frequency can be eliminated, direct-current side current and voltage ripples are reduced, and the conversion efficiency of a circuit is improved.
本发明提供了一种改进型交错并联SWISS整流器,包括三相电源,所述三相电源分别连至a,b,c三相然后连至两个交错并联的由6个二极管构成的整流桥;所述的两个交错并联的整流桥的每相桥臂中点分别连接两个由6个二极管和6个IGBT组成的谐波注入电路,每个整流桥的两端连接两个开关管再分别连接两个串联的DC‑DC Buck型整流器。本发明与传统的三相整流器相比,能够消除开关频率下的交流侧电流谐波,降低直流侧电流和电压纹波,提高了电路的转换效率。
Improved interleaved parallel SWISS rectifier
一种改进型交错并联SWISS整流器
2021-02-19
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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