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Rotor side control of grid-connected wound rotor induction machine

Datta, Rajib and Ranganathan, VT (2000) Rotor side control of grid-connected wound rotor induction machine. In: Journal of the Indian Institute of Science, 80 (5). pp. 437-456.

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This paper deals with modeling, simulation and implementation of rotor side control strategies for a grid-connected wound rotor induction machine. In the system under consideration, the stator is directly connected to the constant frequency three-phase grid and the rotor is supplied by two back-to-back three-phase voltage source inverters with a common DC link. Such a configuration is attractive in large power applications with limited speed range of operation. The rotor currents are controlled at any desired phase, frequency and magnitude to control the active and reactive powers of the machine independently. A stator flux-oriented model of the doubly fed wound rotor induction machine is presented. The current controllers are designed in the field coordinates. Simulation waveforms exhibit excellent transient response of the current loops; the dynamics of the direct and quadrature axes are also observed to be decoupled. An experimental setup consisting of IGBT inverters and a TMS320F240 DSP-based digital controller is developed in the laboratory to implement the control algorithms. Relevant experimental waveforms are presented; they are observed to be in good agreement with the simulation results.

Item Type: Journal Article
Publication: Journal of the Indian Institute of Science
Publisher: Indian Institute of Science
Additional Information: Copyright of this article belongs to Indian Institute of Science.
Department/Centre: Division of Electrical Sciences > Electrical Engineering
Date Deposited: 12 Dec 2006
Last Modified: 27 Aug 2008 12:26
URI: http://eprints.iisc.ac.in/id/eprint/8960

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