Title:
MOTOR DRIVE AND METHOD FOR CONTROLLING OPERATION OF INDUCTION MOTOR
Document Type and Number:
WIPO Patent Application WO/2019/138598
Kind Code:
A1
Abstract:
A motor drive for controlling an operation of an induction motor includes a motion controller to provide a reference signal for controlling the operation of the motor, and a memory to store a transformed model relating dynamics of a transformed state of the motor with the measurements of the sensor through parameters of the transformed model including unknown parameters of the transformed model such as speed of the motor. The transformed state of the motor is a function of an electromagnetic state of the motor and the parameters of the transformed model. The dynamics of the transformed state is defined by a sum of components, each component is a linear function of the transformed state and at least one of the unknown parameters of the transformed model. The motor drive also includes a motor controller to produce an estimate of the speed of the motor and an estimate of the flux of the motor based on the measurements of the sensor and the transformed model of the motor, and to produce a reference voltage to track the reference signal based on the estimate of the speed and the flux of the motor.
Inventors:
WANG YEBIN (US)
Application Number:
PCT/JP2018/026249
Publication Date:
July 18, 2019
Filing Date:
July 05, 2018
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02P27/04; H02P21/24
Foreign References:
| US20170201198A1 | 2017-07-13 | |||
| US20160226419A1 | 2016-08-04 |
Other References:
None
Attorney, Agent or Firm:
SOGA, Michiharu et al. (JP)
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