Experimental Identification of Mechanical Parameters for Speed Controller Design of Switched Reluctance Machine Drive

Thirumalasetty, M and Narayanan, G (2023) Experimental Identification of Mechanical Parameters for Speed Controller Design of Switched Reluctance Machine Drive. In: IEEE International Conference on Energy Technologies for Future Grids, ETFG 2023, 3 December 2023 through 6 December 2023, Wollongong.

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Abstract

The identification of mechanical parameters is important in the design of an efficient speed controller for electric drives. In this paper, an experimental method is proposed to determine the moment of inertia and frictional torque characteristics of a Switched Reluctance Machine (SRM) connected to a load. In this method, the no-load steady-state frictional torque is estimated from the SRM's static-torque characteristics while maintaining constant speeds. Subsequently, to calculate the moment of inertia, the SRM drive is accelerated till a peak speed using a low-torque ripple torque controller, and decelerated through the loss torque. The moment of inertia is then determined from the measured speed responses, during the acceleration and deceleration periods by employing two different numerical methods: the area method and least square error fitting. Furthermore, using the experimentally determined mechanical parameters, this paper presents the design of a PI-based-speed controller for SRM. The validity and effectiveness of this method are confirmed through simulations and experiments conducted on an 8/6 pole 4-phase, 4kW SRM connected to a DC shunt generator. © 2023 IEEE.

Item Type:	Conference Paper
Publication:	2023 IEEE International Conference on Energy Technologies for Future Grids, ETFG 2023
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	The copyright for this article belongs to Institute of Electrical and Electronics Engineers Inc.
Department/Centre:	Division of Electrical Sciences > Electrical Engineering
Date Deposited:	12 Jun 2024 10:32
Last Modified:	12 Jun 2024 10:32
URI:	http://eprints.iisc.ac.in/id/eprint/84526

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