A control device of a multi-phase converter having N converter circuits connected in parallel includes: a determination unit configured to determine each share ratio of the N converter circuits to unevenly share input current to the multi-phase converter among the N converter circuits such that a conversion efficiency indicating a ratio of output power from the multi-phase converter with respect to input power to the multi-phase converter is higher in the case where the input current is unevenly shared by the N converter circuits compared to the case where the input current is evenly shared by the N converter circuits when the number of driven converter circuits is one or more and N-1 or less and the start condition is satisfied; and a diagnosis unit configured to diagnose an abnormality of the N converter circuits when the N converter circuits are driven in accordance with the determined share ratios.
本发明提供多相转换器的控制装置以及电源系统,具有并联连接的N个转换器电路的多相转换器的控制装置具备:决定部,在上述转换器电路的上述驱动数目为1以上N‑1以下的状态下上述多相转换器的异常诊断的开始条件成立的情况下,以表示输出电力相对于输入电力的比率的转换效率比将上述输入电流均等地分担给N个上述转换器电路的情况高的方式,决定用于不均等地分担上述输入电流的、上述转换器电路的各分担率;和诊断部,在N个上述转换器电路根据所决定的上述各分担率进行驱动的状态下诊断N个上述转换器电路的异常。
CONTROL DEVICE OF MULTI-PHASE CONVERTER AND POWER SUPPLY SYSTEM
多相转换器的控制装置以及电源系统
2021-05-28
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 |
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