ROTARY MACHINE CONTROL DEVICE
PROBLEM TO BE SOLVED: To provide a rotary machine control device capable of obtaining a correction coefficient during actual drive operation only by grasping basic electric characteristics without carrying out prior measuring work or analyzing work requiring special facilities for obtaining predeter...
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Format: | Patent |
Sprache: | eng ; jpn |
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Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a rotary machine control device capable of obtaining a correction coefficient during actual drive operation only by grasping basic electric characteristics without carrying out prior measuring work or analyzing work requiring special facilities for obtaining predetermined mechanical characteristics, and easily suppressing a torque ripple.SOLUTION: A correcting portion 100 computes a torque constant correction command Kt1 by electric circuit analysis on the basis of an electric constant of a motor 10, a current detection value i, a voltage command value v*, and an electric angle re. A current command generating portion 1 generates a q-axis current command value iq*, on the basis of a torque command value τ*, a torque constant of the motor 10, and a torque constant correction command Kt1.
【課題】所定の機械特性を得るための、特殊な設備を要する事前の計測作業や解析作業を行うこと無しに、基本的な電気特性を把握しておくだけで、実際の運転動作の中で補正係数を取得することができ、トルクリプルを簡便に抑制可能な回転機制御装置を提供することを目的としている。【解決手段】補正部100は、モータ10の電気定数と電流検出値iと電圧指令値v*と電気角 reとに基づき電気回路解析でトルク定数補正指令Kt1を演算し、電流指令生成部1は、トルク指令値τ*とモータ10のトルク定数とトルク定数補正指令Kt1とに基づきq軸電流指令値iq*を生成する。【選択図】図1 |
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