The invention discloses a multi-level electric vehicle charger and a control method thereof, the multi-level electric vehicle charger comprises a five-level AC-DC rectifier, the input end of the five-level AC-DC rectifier is connected with a single-phase power grid, the output end of the five-level AC-DC rectifier is connected with a phase-shifted full-bridge DC-DC converter, and the phase-shifted full-bridge DC-DC converter is connected with a phase-shifted full- The output end of the phase-shifted full-bridge DC-DC converter is connected with a battery E, and energy transfer between the direct-current connection capacitor and the battery is adjusted through phase shifting. By adopting the five-level rectifier, the voltage pressure of the switch can be reduced, and the harmonic wave of the input quantity can be improved; a phase-shifted full-bridge DC-DC converter is adopted, and a series resonance circuit is added to realize zero-voltage conversion; and the five-level rectifier and the DC-DC converter are integrated together, so that a uniform power factor can be kept, and a vehicle-mounted function can be realized.
本发明公开了一种多电平电动汽车充电器及其控制方法,五电平AC‑DC整流器,五电平AC‑DC整流器输入端连接有单相电网,五电平AC‑DC整流器的输出端连接有移相全桥DC‑DC变换器,移相全桥DC‑DC变换器的输出端连接有电池E使用相移来调节直流连接电容器和电池之间的能量转移;采用五电平整流器,能够降低开关的电压压力,改进输入量的谐波;采用移相全桥DC‑DC变换器并加入串联谐振电路实现零电压转换;将五电平整流器与DC‑DC转换器集成在一起,能够保持统一的功率因数,且能够实现车载功能。
Multi-level electric vehicle charger and control method thereof
一种多电平电动汽车充电器及其控制方法
28.06.2024
Patent
Elektronische Ressource
Chinesisch
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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 |
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