Title: Parameter plane synthesis of modified self commutating CSI-fed induction motor drive

Authors: Pramod Agarwal, A.K. Pandey, V.K. Verma

Addresses: Department of Electrical Engineering, Indian Institute of Roorkee, Roorkee – 247 667, India. ' Department of Electrical Engineering, M.M.M. Engineering College, Gorakhpur – 273 010, India. ' Department of Electrical Engineering, Indian Institute of Roorkee, Roorkee – 247 667, India

Abstract: The paper presents a new technique for the design of current and speed controller parameters of a modified CSI-fed induction motor drive for stable operation. The mathematical model of the induction motor drive is developed in closed loop and the characteristic equations of the system are derived using perturbation about operating point. D-partition technique is used to determine the stable region in controller parameter plane. Frequency scanning technique is used to confirm the stability of the region in parametric plane. Final selection of current and speed controller parameters is done by comparing the transient response of current loop and speed loop for step variation in reference. The performance of the drive is investigated experimentally and compared with the simulated results to validate the designed controller parameters.

Keywords: current source inverters; CSI; D-partition; frequency scanning; speed control; current control; pulse width modulation; PWM; power electronics; induction motor drives; mathematical modelling; controller design.

DOI: 10.1504/IJPELEC.2011.040802

International Journal of Power Electronics, 2011 Vol.3 No.4, pp.345 - 373

Received: 26 Aug 2009
Accepted: 06 Feb 2010
Published online: 31 Jan 2015 *

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