The invention provides a bidirectional power conversion device, which comprises a first bidirectional converter and a second bidirectional converter which are sequentially connected between an AC power supply and a DC power supply, a first main control board for controlling the first bidirectional converter, a second main control board for controlling the second bidirectional converter, and a power supply connection unit, each of the first main control board and the second main control board comprises a control module and a power supply module for supplying power to the control module; the power supply connection unit communicates the second power supply module with the first control module when the DC power supply loses power; and when the AC power supply loses power, the first power supply module is communicated with the second control module. According to the scheme, when the power supply on one side loses power, the power supply on the other side can be used for supplying power to the bidirectional power conversion device, so that uninterrupted power supply of the bidirectional power conversion device is ensured, and the reliability of the bidirectional power conversion device is improved.
本发明提供了一种双向电力变换装置,包括依次连接于AC电源和DC电源之间的第一双向变换器和第二双向变换器,控制第一双向变换器的第一主控板、控制第二双向变换器的第二主控板以及供电连接单元,第一主控板和第二主控板均包括一个控制模块和一个为该控制模块供电的供电模块;供电连接单元在DC电源失电时将第二供电模块和第一控制模块连通;在AC电源失电时将第一供电模块和第二控制模块连通。通过上述方案,本申请可以在一侧电源失电时采用另一侧电源向双向电力变换装置供电,从而保证双向电力变换装置的不间断供电,提高双向电力变换装置的可靠性。
Bidirectional power conversion device
双向电力变换装置
2022-10-18
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 / 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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