CONTROLLER OF MULTI-PHASE ROTARY MACHINE

PROBLEM TO BE SOLVED: To provide a controller of a multi-phase rotary machine for suppressing influence on control due to inverse input of external force.SOLUTION: An ECU as a controller controls driving of a motor 801 (three phase rotary machine) having possibility that torque is outputted to a loa...

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Bibliographische Detailangaben
Hauptverfasser: NAKAJIMA KOTARO, SATO TAKAFUMI, NAKAJIMA NOBUYORI, TAKESAKI AKIRA, SUZUKI TAKASHI
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a controller of a multi-phase rotary machine for suppressing influence on control due to inverse input of external force.SOLUTION: An ECU as a controller controls driving of a motor 801 (three phase rotary machine) having possibility that torque is outputted to a load during normal operation, and that external force is inversely inputted from a load side except for normal operation. A command calculation section 201 of the ECU calculates a command value for controlling energization of the motor 801 by operating an inverter 60. An input voltage determination section 50 determines whether input voltage Vr of the inverter 60 is within an operation range during the normal operation or not. Upon voltage excess time when the input voltage determination section 50 determines that the input voltage Vr is out of the operation range during the normal operation, the ECU switches control so that a change of voltage or current due to inverse input of the external force is ignored or control fluctuation due to the inverse input of the external force is suppressed. The ECU prevents erroneous determination by stopping determination of excess current abnormality by an abnormality determination section 55 when voltage exceeds, for example.SELECTED DRAWING: Figure 3 【課題】外力の逆入力に起因する制御への影響を抑制する多相回転機の制御装置を提供する。【解決手段】制御装置としてのECUは、通常動作時に負荷にトルクを出力し、且つ、通常動作時以外に負荷側から外力が逆入力される可能性のあるモータ801(3相回転機)の駆動を制御する。ECUの指令演算部201は、インバータ60を操作してモータ801の通電を制御する指令値を演算する。入力電圧判定部50は、インバータ60の入力電圧Vrが通常動作時の動作範囲内であるか否か判定する。ECUは、入力電圧判定部50により入力電圧Vrが通常動作時の動作範囲外であると判定された電圧超過時に、外力の逆入力に起因する電圧又は電流の変化を無視するように、又は、外力の逆入力に起因する制御変動を抑制するように、制御を切り替える。例えばECUは、電圧超過時に異常判定部55による過電流異常の判定を中止することで、誤判定を防止する。【選択図】図3