The invention discloses a soft start control method and system for a direct-current converter, a vehicle and a storage medium. The method comprises the steps that a control instruction for starting or switching the direct-current converter is received; according to the control instruction, acquiring an initial voltage sampling signal of the electric control system when the direct current converter is started or switched; calculating to obtain a duty ratio instruction initial value according to the initial voltage sampling signal; and controlling the direct-current converter according to the duty ratio instruction initial value. According to the soft start control method for the direct current converter, the initial voltage sampling signal of the electric control system when the direct current converter is started or switched is obtained, the duty ratio instruction initial value is calculated, soft start control over the direct current converter is achieved, soft start under various working conditions can be adapted to, impact current is reduced, and the service life of the direct current converter is prolonged. Therefore, system stability is improved, system loss is reduced, and device damage caused by overcurrent is avoided.
本发明公开了一种直流变换器软启动控制方法、系统、车辆及存储介质,该方法包括:接收对直流变换器启动或切换的控制指令;根据所述控制指令,获取所述直流变换器启动或切换时所述电控系统的初始电压采样信号;根据所述初始电压采样信号计算得到占空比指令初始值;根据所述占空比指令初始值,对所述直流变换器进行控制。本发明提出的直流变换器软启动控制方法,通过获取直流变换器启动或切换时电控系统的初始电压采样信号,计算出占空比指令初始值,实现了对直流变换器的软启动控制,能适应多种工况下的软启动以减小冲击电流,从而提高系统稳定性、降低系统损耗并避免过流损坏器件。
Soft start control method and system for direct-current converter, vehicle and storage medium
直流变换器软启动控制方法、系统、车辆及存储介质
07.11.2023
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 / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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