MOTOR DRIVE CONTROL DEVICE, MOTOR UNIT, AND MOTOR DRIVE CONTROL METHOD

To improve both stability of rotation speed and responsiveness of a motor in speed control of the motor.SOLUTION: A motor drive control device 2 comprises: a drive circuit 6 for applying a voltage onto a coil of a motor 3 on the basis of a drive control signal Sd for controlling drive of the motor 3...

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Bibliographic Details
Main Authors AOKI MASATO, SHIMIZU DAISUKE, KAIZU HIROYUKI
Format Patent
LanguageEnglish
Japanese
Published 22.08.2023
Subjects
CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS
CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
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Summary:To improve both stability of rotation speed and responsiveness of a motor in speed control of the motor.SOLUTION: A motor drive control device 2 comprises: a drive circuit 6 for applying a voltage onto a coil of a motor 3 on the basis of a drive control signal Sd for controlling drive of the motor 3, to drive the motor 3; and a control circuit 5 for performing feedback control that generates the drive control signal Sd so that a rotation speed Sr of the motor 3 matches a target rotation speed Stg. The control circuit 5 stepwisely changes a gain Sg so as to reduce the gain Sg of the feedback control as a deviation Sdf of the rotation speed Sr of the motor 3 from the target rotation speed Stg decreases.SELECTED DRAWING: Figure 1 【課題】モータの速度制御において、モータの回転速度の安定性および応答性の両方を向上させる。【解決手段】モータ駆動制御装置２は、モータ３の駆動を制御するための駆動制御信号Ｓｄに基づいて、モータ３のコイルに電圧を印加してモータ３を駆動する駆動回路６と、モータ３の回転速度Ｓｒが目標回転速度Ｓｔｇに一致するように駆動制御信号Ｓｄを生成するフィードバック制御を行う制御回路５と、を有する。制御回路５は、モータ３の回転速度Ｓｒの目標回転速度Ｓｔｇに対する偏差Ｓｄｆが小さくなるほどフィードバック制御のゲインＳｇが小さくなるように、ゲインＳｇを階段状に変化させる。【選択図】図１
Bibliography:Application Number: JP20220018655