The embodiment of the invention relates to a parallel current sharing control method, and the method comprises the steps: carrying out the calculation according to the collected first output current of a first high-frequency module and the collected second output current of a second high-frequency module, and obtaining a current deviation; inputting the current deviation into a double-hysteresis controller to obtain a state value; if the state value is equal to a first preset state value, inputting the current deviation into a P I controller to obtain a duty ratio regulating variable; and outputting a first duty ratio of the first high-frequency module and a second duty ratio of the second high-frequency module according to the duty ratio adjusting quantity, and performing current sharing control on the first high-frequency module and the second high-frequency module. According to the parallel current sharing control method, through combination of the P I controller and the double-hysteresis controller, current sharing and stable output of the parallel high-frequency modules can be realized, so that the running stability and reliability of the motor train unit charger can be improved.
本发明实施例涉及一种并联均流控制方法,包括:根据采集的第一高频模块的第一输出电流和第二高频模块的第二输出电流,计算得到电流偏差;将电流偏差输入双滞环控制器中,得到状态值;若状态值等于第一预设状态值,则将电流偏差输入P I控制器,得到占空比调节量;根据占空比调节量输出第一高频模块的第一占空比和第二高频模块的第二占空比,对第一高频模块和第二高频模块进行均流控制。本发明的并联均流控制方法,通过P I控制器和双滞环控制器的结合,可以实现并联高频模块均流、稳定输出,从而可以提高动车组充电机运行的稳定性和可靠性。
Parallel current sharing control method
一种并联均流控制方法
2024-07-02
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 / B61C Lokomotiven , LOCOMOTIVES / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |
Charger parallel current sharing control method and control system thereof
European Patent Office | 2023
|European Patent Office | 2024
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