To reduce possibility that an operational state of a motor becomes unstable due to an influence of dead time.SOLUTION: An inverter controller comprises: a dead time compensation part which adds a dead time compensation value having polarities to a control value to be generated by a control value generation part so that deterioration resulting from dead time in applied voltage to a motor is compensated; and a drive part which drives a switching element in a mode having the dead time on the basis of the control value which is generated by the control value generation part and to which the dead time compensation value is added by the dead time compensation part. The dead time compensation part switches the polarities of the dead time compensation value before polarities of an actual current value to be detected by a current detection part are inverted on the basis of the actual current value to be detected by the current detection part.SELECTED DRAWING: Figure 4

    【課題】デッドタイムの影響によりモータの動作状態が不安定となる可能性を低減することを目的とする。【解決手段】インバータ制御装置は、モータへの印加電圧におけるデッドタイムに起因した低下が補償されるように、制御値生成部により生成される制御値に、極性を有するデッドタイム補償値を付加するデッドタイム補償部と、制御値生成部により生成されかつデッドタイム補償部によりデッドタイム補償値が付加された制御値に基づいて、デッドタイムを有する態様でスイッチング素子を駆動する駆動部と、を備え、デッドタイム補償部は、電流検出部により検出される実電流値に基づいて、電流検出部により検出される実電流値の極性が反転する前に、デッドタイム補償値の極性を切り換える。【選択図】図4


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    Title :

    MOTOR CONTROLLER, MOTOR CONTROL SYSTEM AND INVERTER CONTROLLER


    Additional title:

    モータ制御装置、モータ制御システムおよびインバータ制御装置


    Contributors:

    Publication date :

    2021-01-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    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 / B62D MOTOR VEHICLES , Motorfahrzeuge / 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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