The invention discloses a bus capacitor discharging method and related equipment, the discharging method is suitable for a DC/DC converter, and the DC/DC converter comprises a chopping unit, a transformer and a rectification unit. Wherein the bus capacitor is coupled with the chopping unit, the chopping unit is coupled with the primary side of the transformer, and the secondary side of the transformer is coupled with the rectifying unit; the chopping unit and the rectifying unit are both coupled to a controller. In the specific implementation, when the controller determines to discharge the bus capacitor, the controller can control the rectification unit to short-circuit the secondary side of the transformer and control the chopping unit to close the loop formed between the bus capacitor and the primary side of the transformer. By implementing the application, the cost can be reduced, and the safety is good.
本申请公开了一种母线电容的放电方法及其相关设备,该放电方法适用于DC/DC变换器,该DC/DC变换器包括斩波单元、变压器以及整流单元。其中,母线电容耦合斩波单元,该斩波单元耦合变压器的原边,该变压器的副边耦合整流单元;该斩波单元和该整流单元均耦合至控制器。具体实现中,该控制器在确定对母线电容进行放电时,可以控制整流单元将变压器的副边短路,以及控制斩波单元将母线电容与变压器的原边之间形成的回路闭合。实施本申请,可以降低成本,且安全性好。
Discharging method of bus capacitor and related equipment thereof
一种母线电容的放电方法及其相关设备
08.04.2022
Patent
Elektronische Ressource
Chinesisch
IPC: | H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen / 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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