Modelling and Controller Design for Simplified Torque Control of Switched Reluctance Machine

Thirumalasetty, M and Narayanan, G (2022) Modelling and Controller Design for Simplified Torque Control of Switched Reluctance Machine. In: 2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022, 9 - 13 October 2022, Detroit.

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Abstract

This paper proposes a simple torque controller for SRM, consisting of a single PI controller and phase-shifted gating functions for the individual phases. In order to select the PI parameters, a large-signal model for the SRM is first derived from its static torque characteristics, different small-signal linearized models are studied, and the most appropriate one for controller design is identified. The designed controller is validated through simulations and experiments on a 4-kW, 8/6-pole, 4-phase SRM drive. The impact of four different gating functions on the torque ripple and RMS phase current are investigated through experiments. An online feed-forward compensation using sensed phase currents and estimated torque is proposed to enhance the torque controller performance at higher speeds. The controller performance with and without feed-forward term is presented for the proposed gating functions at different operating speeds and torque levels. © 2022 IEEE.

Item Type:	Conference Paper
Publication:	2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	The copyright for this article belongs to the Institute of Electrical and Electronics Engineers Inc.
Keywords:	Controllers; Electric machine control; Reluctance motors; Torque, Controller designs; Controller performance; Gating functions; Modulated current; Phase currents; Pulse width modulated current control; Pulse-width-modulated; Switched Reluctance Machine; Torque controllers; Torque ripples, Torque control
Department/Centre:	Division of Electrical Sciences > Electrical Engineering
Date Deposited:	25 Jan 2023 09:21
Last Modified:	25 Jan 2023 09:21
URI:	https://eprints.iisc.ac.in/id/eprint/79507

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