MOTOR CONTROLLER
PROBLEM TO BE SOLVED: To materialize non-interacting control by a common circuit when controlling two kinds of AC motors of a synchronous reluctance motor and an IPM synchronous motor.SOLUTION: The non-interference voltage FF compensation part 21 of a motor controller 1 calculates d-axis non-interfe...
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Zusammenfassung: | PROBLEM TO BE SOLVED: To materialize non-interacting control by a common circuit when controlling two kinds of AC motors of a synchronous reluctance motor and an IPM synchronous motor.SOLUTION: The non-interference voltage FF compensation part 21 of a motor controller 1 calculates d-axis non-interference voltage FF compensation Δvd*(-ω1×iq*×Xq) and q-axis non-interference voltage compensation Δvq*(ω1×id*×xd*+ω1xec) for cancelling an interference voltage generated in an AC motor 3 based on a counter electromotive voltage constant ec set in advance, a d-axis reactance identification value Xd and a q-axis reactance identification value Xq, a rotor electric angular voltage velocity ω1, and a d-axis current command id* and a q-axis current command iq*. In the case of a synchronous reluctance motor, a process is performed with the condition that the counter electromotive voltage constant ec set in advance is equal to 0, and in the case of an IPM synchronous motor, a process is performed using a prescribed counter electromotive voltage constant ec.SELECTED DRAWING: Figure 6
【課題】シンクロナスリラクタンスモータ及びIPMシンクロナスモータの2種類の交流モータを制御する際に、共通回路にて非干渉制御を実現する。【解決手段】モータ制御装置1の非干渉電圧FF補償部21は、予め設定された逆起電圧定数ec^、d軸リアクタンス同定値Xd^及びq軸リアクタンス同定値Xq^、並びに入力した回転子電気角速度ω1、d軸電流指令id*及びq軸電流指令iq*に基づいて、交流モータ3にて発生する干渉電圧をキャンセルするためのd軸非干渉電圧FF補償Δvd*(−ω1×iq*×Xq^)及びq軸非干渉電圧FF補償Δvq*(ω1×id*×Xd^+ω1×ec^)を算出する。シンクロナスリラクタンスモータの場合、予め設定された逆起電圧定数ec^=0にて処理を行い、IPMシンクロナスモータの場合、予め設定された所定の逆起電圧定数ec^にて処理を行う。【選択図】図6 |
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