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110096

SPEED AND PARAMETER IDENTIFICATION FOR SENSORLESS VECTOR CONTROL OF INDUCTION MOTORS AT VERY LOW SPEED

Article

Last updated: 26 Dec 2024

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Subjects

-

Tags

Electrical Engineering, Computer Engineering and Electrical power and machines engineering.

Abstract

A novel sensorless vector controlled induction motor drive system is presented in this paper. In this system, compensation of the drift components of the stator voltage vector is done by offset voltage vector estimation to improve the low-speed drive characteristics. The motor speed is estimated from the difference between the estimated synchronous and slip speed. An effective on-line method for estimating both stator and rotor resistances is introduced in this system to achieve high-precision control at low-speed. The estimation method for rotor resistance is based on the error signal between the command value of reactive power and its actual value being based on stator voltage and current measurements. On the other hand, the error between the magnitude of the stator current command and its measured value is used to estimate the stator resistance variations from its set value. This paper clarifies that the low-speed estimation is possible with stator and rotor resistance estimation and the zero-speed control is achieved under load condition. Simulation results are provided to demonstrate smooth steady-state operation and high dynamic performance of the drive system at very low-speed and at zero-speed.

DOI

10.21608/jesaun.2006.110096

Authors

First Name

Yehia

Last Name

S. Mohamed

MiddleName

-

Affiliation

Electrical Engineering Department, Faculty of Engineering, Minia University, Minia, Egypt.

Email

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City

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Orcid

-

Volume

34

Article Issue

No 1

Related Issue

16603

Issue Date

2006-01-01

Receive Date

2005-09-14

Publish Date

2006-01-01

Page Start

123

Page End

143

Print ISSN

1687-0530

Online ISSN

2356-8550

Article File

JESAUN_Volume 34_Issue No 1_Pages 123-143.pdf

PDF . 373.3kB

Link

https://jesaun.journals.ekb.eg/article_110096.html

Detail API

https://jesaun.journals.ekb.eg/service?article_code=110096

Order

8

Type

Research Paper

Type Code

1,438

Publication Type

Journal

Publication Title

JES. Journal of Engineering Sciences

Publication Link

https://jesaun.journals.ekb.eg/

MainTitle

SPEED AND PARAMETER IDENTIFICATION FOR SENSORLESS VECTOR CONTROL OF INDUCTION MOTORS AT VERY LOW SPEED

Details

Type

Article

Created At

23 Jan 2023