ELECTRIC MOTOR DRIVE CONTROL METHOD AND DEVICE

Title:

ELECTRIC MOTOR DRIVE CONTROL METHOD AND DEVICE

Document Type and Number:

WIPO Patent Application WO/2008/020500

Kind Code:

A1

Abstract:

When the rotational speed ω is in the predetermined speed range -ω1 ≤ ω ≤ +ω2 including the rotational speed 0 at which the target current id*, iq* assigned to a target torque T* are discontinuously changed, the target current id*, iq* corresponding to the rotational speed ω are determined by linear interpolation using the power running-side target currents idU, iqU and regeneration-side target currents idL, iqL assigned to the rotational speed ω and the target torque T*, and currents iU, iV, iW equivalent to the target currents are applied to an electric motor (10). If the rotational speed ω is out of the range, currents equivalent to the target currents assigned to the target torque T* equivalent values on a high-efficiency torque curve are applied to the electric motor (10) and decreased filed control is performed.

More Like This:

WO/2002/007299	METHOD AND CIRCUIT FOR CORRECTING VOLTAGE ERROR DUE TO DEAD BAND OF PWM SYSTEM VOLTAGE TYPE INVERTER
JP5510156	Rotating machine control device
JP5856438	Power converter

Inventors:

SAHA SUBURATA (JP)
CHEN ZHIGIAN (JP)

Application Number:

PCT/JP2007/060611

Publication Date:

February 21, 2008

Filing Date:

May 24, 2007

Export Citation:

Click for automatic bibliography generation Help

Assignee:

AISIN AW CO (JP)
SAHA SUBURATA (JP)
CHEN ZHIGIAN (JP)

International Classes:

H02P21/00; H02P21/04; H02P21/05; H02P21/06; H02P21/13; H02P21/22; H02P23/03; H02P23/04; H02P23/16; H02P23/18; H02P27/04

Foreign References:

JPH06245314A	1994-09-02
JP2003274699A	2003-09-26
JP2006014539A	2006-01-12

Attorney, Agent or Firm:

HIGUCHI, Takehisa (Gifu-shi Gifu, 67, JP)

Download PDF:

View/Download PDF PDF Help

Previous Patent: ENDOSCOPIC DEVICE AND ITS PROCESSING METHOD

Next Patent: ELECTRIC MOTOR FEEDBACK CONTROL METHOD AND APPARATUS