Title:
CONTROLLER FOR MOTOR
Document Type and Number:
Japanese Patent JPH0340787
Kind Code:
A
Abstract:
PURPOSE: To shorten machining cycle time by providing energy storage means for storing rotary energy or kinetic energy of a motor and a load as regenerative energy when the motor is decelerated.
CONSTITUTION: A rotating speed of a motor 5 is input from a speed detector 13 connected to the motor 5 to a control circuit 6, and rotary kinetic energy of the motor 5 and a load is calculated by the speed. The circuit 6 is connected to detect a voltage across energy storage means 12, and storage energy stored in energy storage means 12 is calculated by the input voltage. The circuit 6 so controls a DC/DC converter 11 that the total sum of the kinetic energy of the motor and the load and the stored energy becomes substantially constant.
Inventors:
NASHIMOTO MASAYUKI
YURA MOTOZUMI
YURA MOTOZUMI
Application Number:
JP17273789A
Publication Date:
February 21, 1991
Filing Date:
July 04, 1989
Export Citation:
Assignee:
OKUMA MACHINERY WORKS LTD
International Classes:
H02P3/18; H02P27/06; (IPC1-7): H02P3/18; H02P5/41
Domestic Patent References:
| JPS61267675A | 1986-11-27 |
Attorney, Agent or Firm:
Azusa Yuzo