The invention discloses a power converter controlled series circuit and a control method thereof and a power system. The series circuit comprises: a capacitor having a first port A and a second port;a power converter, a first output port of the power converter being connected to a second port of the capacitor, a second output port of the power converter being a port B, and the power converter being used for outputting an auxiliary voltage; and a controller used for controlling the power converter to output auxiliary voltage according to the selected function; wherein the series circuit can beexpressed as an equivalent capacitor, inductor or impedor according to the selected function. The auxiliary voltage can basically eliminate low-frequency alternating-current voltage ripples at the two ends of the capacitor, so that basically pure direct-current output voltage is output to a load.
本发明实施例公开了一种功率变换器控制的串联电路及其控制方法、电源系统。该串联电路包括:一个具有第一端口A和第二端口的电容器;一个功率变换器,其第一输出端口连接到所述电容器的第二端口,其第二输出端口为端口B,所述功率变换器用于输出一个辅助电压;一个根据所选功能控制所述功率变换器输出辅助电压的控制器;其中,所述串联电路根据所选功能可以表现为一个等效的电容器、电感器或阻抗器。此辅助电压可基本消除电容器两端的低频交流电压纹波,从而将基本纯净的直流输出电压输出到负载。
POWER CONVERTER CONTROLLED CAPACITOR CIRCUITS AND CONTROL METHOD THEREOF
功控电容器电路及其控制方法
2020-10-30
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 / 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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