To provide a controller and a driver which can increase a calorific value of a whole by generating heat in coils of respective phases of a motor in good balance.SOLUTION: In a driver 1, a controller 10 of a motor 20 having coils 22 of a plurality of phases which are interconnected at a neutral point N and are star-connected has an inverter circuit 11 which converts voltage of a DC power supply to AC voltage of a plurality of phases to supply to coils of respective phases, a neutral point connection circuit 13 connected to a neutral point, and a control part 12 controlling the inverter circuit and the neutral point connection circuit. The neutral point connection circuit has a parallel wiring part 11a connected in parallel with the inverter circuit between a cathode and an anode of the DC power supply, a connection wiring part 13b connecting the parallel wiring part and the neutral point, and switching elements QN 1, QN 2 respectively provided at positions closer to the cathode and the anode than a connection part 13p connecting with the connection wiring part in the path of the parallel wiring part.SELECTED DRAWING: Figure 2
【課題】モータの各相のコイルにバランスよく発熱させることで全体の発熱量を増加させることができる制御装置及び駆動装置の提供する。【解決手段】駆動装置1において、中性点Nにおいて互いに接続されスター結線される複数相のコイル22を有するモータ20の制御装置10は、直流電源の電圧を複数相の交流電圧に変換して各相のコイルに供給するインバータ回路11と、中性点に繋がる中性点接続回路13と、インバータ回路及び中性点接続回路を制御する制御部12と、を有する。中性点接続回路は、直流電源の正極および負極の間でインバータ回路と並列接続される並列配線部11aと、並列配線部と中性点とを繋ぐ接続配線部13bと、並列配線部の経路中であって接続配線部との接続部13pより正極側及び負極側に夫々設けられるスイッチング素子QN1、QN2と、を有する。【選択図】図2
CONTROLLER AND DRIVER
制御装置、および駆動装置
2023-05-12
Patent
Elektronische Ressource
Japanisch
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 / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern |
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