Torque maximisation of the PMAC motor for high performance, low inertia operation

Stewart, Paul (2003) Torque maximisation of the PMAC motor for high performance, low inertia operation. Asian Journal of Control, 5 (1). pp. 58-64. ISSN 1561-8625

Documents
Torque maximisation of the PMAC motor for high performance, low inertia operation
This paper describes the techniques applied to maximise the torque en- velope of the permanent magnet AC (PMAC) motor operating under current and voltage constraints. Standard steady-state descriptions of the system are often suitable for control purposes when the rotor velocity is varying rela- tively slowly. In low inertia applications such as clutchless gearchange opera- tions, where in the pursuit of driveability, the motor is required to accelerate and decelerate its own rotor inertia as quickly as possible. In this case, the voltage drop due to the current dynamics start to become significant. This paper presents a method to reserve voltage headroom dynamically in the field-weakening region in order to maximise the torque envelope when the effective inertia is low. Experimental results show the effectiveness of this approach.
[img]
[Download]
[img]
Preview
PDF
AJC.pdf - Whole Document

262Kb

Official URL: http://dx.doi.org/10.1111/j.1934-6093.2003.tb00097...

Abstract

This paper describes the techniques applied to maximise the torque en- velope of the permanent magnet AC (PMAC) motor operating under current and voltage constraints. Standard steady-state descriptions of the system are often suitable for control purposes when the rotor velocity is varying rela- tively slowly. In low inertia applications such as clutchless gearchange opera- tions, where in the pursuit of driveability, the motor is required to accelerate and decelerate its own rotor inertia as quickly as possible. In this case, the voltage drop due to the current dynamics start to become significant. This paper presents a method to reserve voltage headroom dynamically in the field-weakening region in order to maximise the torque envelope when the effective inertia is low. Experimental results show the effectiveness of this approach.

Item Type:Article
Additional Information:This paper describes the techniques applied to maximise the torque en- velope of the permanent magnet AC (PMAC) motor operating under current and voltage constraints. Standard steady-state descriptions of the system are often suitable for control purposes when the rotor velocity is varying rela- tively slowly. In low inertia applications such as clutchless gearchange opera- tions, where in the pursuit of driveability, the motor is required to accelerate and decelerate its own rotor inertia as quickly as possible. In this case, the voltage drop due to the current dynamics start to become significant. This paper presents a method to reserve voltage headroom dynamically in the field-weakening region in order to maximise the torque envelope when the effective inertia is low. Experimental results show the effectiveness of this approach.
Keywords:Model reference control, torque control, Permanent Magnet AC Motor
Subjects:H Engineering > H660 Control Systems
H Engineering > H360 Electromechanical Engineering
Divisions:College of Science > School of Engineering
ID Code:2229
Deposited By:INVALID USER
Deposited On:06 Mar 2010 15:30
Last Modified:13 Mar 2013 08:35

Repository Staff Only: item control page