To suppress heat generated by an inverter during regeneration.SOLUTION: A motor generator control device includes a PCM 5 that outputs a signal to an inverter 20 that drives and controls a motor 30 having a permanent magnet 30d. The inverter 20 includes arms 21, 22, 23. Each of the arms includes two diodes 25 connected in anti-parallel with each of two switching elements 24. An AC is supplied to each phase of the motor 30 from between the two switching elements 24, and the driving of the motor 30 is controlled. The PCM 5 executes a synchronous rectification process when a regenerative current flows through the arms 21, 22, 23. When the synchronous rectification process is performed, the motor electromotive force is modulated such that a period P2 during which the regenerative current flows through the diode 25 is shortened.SELECTED DRAWING: Figure 8B

    【課題】回生時にインバータで発生する発熱を抑制する。【解決手段】永久磁石30dを有するモータ30を駆動制御するインバータ20に信号を出力して制御するPCM5を備える。インバータ20は、アーム21,22,23を有し、各アームは、2つのスイッチング素子24の各々と逆並列に接続された2つのダイオード25を有している。2つのスイッチング素子24,24の間からモータ30の各相に交流が供給されて、モータ30が駆動制御される。PCM5は、アーム21,22,23に回生電流が流れるときに、同期整流処理を実行する。この同期整流処理の実行時に、ダイオード25に回生電流が流れる期間P2が短くなるようにモータ起電力を変調する。【選択図】図8B


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    Title :

    MOTOR GENERATOR CONTROL DEVICE


    Additional title:

    電動発電機の制御装置


    Contributors:

    Publication date :

    2020-03-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / 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



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