To provide a device for controlling a rotary machine capable of correctly controlling the rotary machine by appropriately detecting a rotational direction and a rotational speed even when the rotational speed of the rotary machine is increased.SOLUTION: A device for controlling a rotary machine recognizes a rotational direction and a rotational speed of the rotary machine using a channel A and a channel B in a low speed zone where information on a speed sensor is accurately received. When a signal of one of the channels is normal at a speed exceeding a certain constant speed, a device uses the signal of the normal one of the channels, for detection of the rotational speed, so as to eliminate an impact of a state of signal transmission path on deterioration of signal quality, to enable accurate detection of the rotational speed of the rotary machine.SELECTED DRAWING: Figure 1
【課題】本発明の目的は、回転機の回転速度が上昇した場合でも、回転方向と回転数を適切に検出することで回転機の制御を正しく行う事が可能な回転機制御装置を提供する。【解決手段】速度センサの情報を正確に受け取れる低速域の時に、チャンネルAとチャンネルBを用いて、回転機の回転方向と回転速度を認識し、ある一定の速度を上回った場合に片方のチャンネルの信号が正常であれば、正常なチャンネルの信号を回転速度検出に用いることで、信号伝送路の状態による信号品質低下の影響を排除し回転機の速度を正確に検知することが出来る。【選択図】図1
ROTARY MACHINE ROTATIONAL SPEED DETECTION
回転機回転数検出
2019-09-26
Patent
Electronic Resource
Japanese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B61C Lokomotiven , LOCOMOTIVES / 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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