PROBLEM TO BE SOLVED: To solve the problem that, when a pair of multiphase converters in which voltage conversion circuits of a plurality of phases are connected in parallel are connected in parallel and required phases are levelled and distributed to both the converters, the case where a great ripple current is generated may increase.SOLUTION: When the number of drive phases of one multiphase converter is zero or an even number and the number of drive phases of the other multiphase converter is a number that is obtained by subtracting the number of selection phases from the number of required phases, the case where the great ripple current is generated decreases. When a pair of four-phase converters are connected in parallel, for example, the number of drive phases is a combination of (1, 0), (2, 0), (3, 0), (4, 0), (4, 1), (4, 2), (4, 3) and (4, 4).SELECTED DRAWING: Figure 2
【課題】複数相の電圧変換回路を並列接続した多相コンバータの一対を並列接続し、必要相数を両者に平準化して配分すると、大きなリプル電流が発生するケースが増大する。【解決手段】一方の多相コンバータの駆動相数をゼロまたは偶数とし、他方の多相コンバータの駆動相数を必要相数から選択相数を減じた相数とすると、大きなリプル電流が発生するケースが減少する。例えば、一対の4相コンバータを並列接続する場合、駆動相数を(1,0)(2,0)(3,0)(4,0)(4,1)(4,2)(4,3)(4,4)の組み合わせとする。【選択図】図2
AUTOMOBILE FOR DRIVING MOTOR FOR TRAVELING BY CONNECTING PAIRED MULTIPHASE CONVERTERS IN PARALLEL
一対の多相コンバータを並列接続して走行用モータを駆動する自動車
2016-04-04
Patent
Electronic Resource
Japanese
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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