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1. WO1996004708 - MOTOR SPEED CONTROLLER

Publication Number WO/1996/004708
Publication Date 15.02.1996
International Application No. PCT/JP1995/001534
International Filing Date 02.08.1995
Chapter 2 Demand Filed 28.02.1996
IPC
H02P 6/16 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
6Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
14Electronic commutators
16Circuit arrangements for detecting position
H02P 23/00 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
23Arrangements or methods for the control of AC motors characterised by a control method other than vector control
CPC
H02P 23/16
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
23Arrangements or methods for the control of AC motors characterised by a control method other than vector control
16Controlling the angular speed of one shaft
H02P 6/17
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
6Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
14Electronic commutators
16Circuit arrangements for detecting position
17and for generating speed information
Applicants
  • KABUSHIKI KAISHA YASKAWA DENKI [JP/JP]; 2-1, Kurosaki-Shiroishi Yahatanishi-ku Kitakyushu-shi Fukuoka 806, JP (AllExceptUS)
  • NAKAMURA, Hiroshi [JP/JP]; JP (UsOnly)
  • TSURUTA, Kazuhiro [JP/JP]; JP (UsOnly)
Inventors
  • NAKAMURA, Hiroshi; JP
  • TSURUTA, Kazuhiro; JP
Priority Data
6/20455905.08.1994JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) MOTOR SPEED CONTROLLER
(FR) DISPOSITIF DE COMMANDE DE LA VITESSE D'UN MOTEUR
Abstract
(EN)
A motor speed controller which detects the position y(i-k) of a motor at the time K.Ts (k » 0, Ts; sampling period) ago from the present time (i) and feedback-controls the speed of the motor by using a motor speed feedback signal vfb calculated based on the signal representing the motor position detected is provided with a means which calculates a torque command u(i) from a speed command and the signal vfb, means which calculates the speed v(i-k) of the motor from the position y(i-k), means which stores the values of the speed v(i-m) (m = k, ..., M') from M' sampling periods before to the time i-K, a predictor which predicts the speed value v*(i+m) (m = -K+2, ..., M) of the motor at the times up to M sampling periods after from the dynamic characteristic model of the motor, the torque command u(i), and position (i-K), and means which finds the speed feedback signal from formula (1) where Wm and W'm represent weight factors.
(FR)
Dispositif de commande de la vitesse d'un moteur détectant la position y(i-k) d'un moteur au moment K.Ts (k » 0, Ts; période d'échantillonnage) passé par rapport au moment actuel (i) et commande par rétroaction la vitesse du moteur par l'intermédiaire d'un signal vfb de rétroaction de la vitesse du moteur calculé sur la base du signal représentant la position détectée du moteur. Ce dispositif est pourvu d'un moyen calculant une instruction de couple u(i) à partir d'une instruction de vitesse et du signal vfb, d'un moyen calculant la vitesse v(i-k) du moteur à partir de la position y(i-k), d'un moyen mémorisant les valeurs de la vitesse v(i-m) (m = k, ..., M') à partir de périodes d'échantillonnage M' avant le moment i-K, d'un prédicteur prédisant la valeur de vitesse v*(i+m) (m = -K+2, ..., M) du moteur aux moments précédant les périodes d'échantillonnage M d'après le modèle des caractéristiques dynamiques du moteur, l'instruction de couple u (I) et la position (i-K), ainsi qu'un moyen permettant de trouver le signal de rétroaction de vitesse à partir de la formule (1), dans laquelle Wm et W'm représentent des facteurs de pondération.
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