METHOD AND APPARATUS FOR CONTROLLING SWITCHED RELUCTANCE MOTOR

Title:

METHOD AND APPARATUS FOR CONTROLLING SWITCHED RELUCTANCE MOTOR

Document Type and Number:

WIPO Patent Application WO/1999/038249

Kind Code:

A1

Abstract:

A power converter (1) supplies output current or voltage to a switched reluctance motor (2) that detects at least one of the quantities (of magnetic flux, voltage or current) to be supplied to a reference signal generator (3). A phase/amplitude correction section (4) receives at least one of the quantities (current, voltage, speed and torque) from the switched reluctance motor (2) and checks for a decrease in torque or efficiency to provide a corrective signal for correction of phase or amplitude. A waveform control section (5) receives an external speed or torque command, the reference signal and the corrective signal to control waveforms and supplies a waveform control signal to the power converter (1). Reliable control of a switched reluctance motor is thus achieved without use of a position detector on the rotor of the motor while taking full advantage of the switched reluctance motor being inexpensive.

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Inventors:

YAMAI HIROYUKI (JP)
KITA MASANOBU (JP)

Application Number:

PCT/JP1999/000287

Publication Date:

July 29, 1999

Filing Date:

January 22, 1999

Export Citation:

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Assignee:

DAIKIN IND LTD (JP)
YAMAI HIROYUKI (JP)
KITA MASANOBU (JP)

International Classes:

H02P25/08; (IPC1-7): H02P5/05

Foreign References:

US4959596A	1990-09-25
JPH08501920A	1996-02-27