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Advances in Power Electronics
Volume 2013 (2013), Article ID 719847, 10 pages
Research Article

Development of a New Research Platform for Electrical Drive System Modelling for Real-Time Digital Simulation Applications

1School of Electrical Engineering, VIT University, Vellore 632014, India
2MVSR Engineering College, Nadergul, Hyderabad 501510, India

Received 31 January 2013; Revised 1 June 2013; Accepted 29 June 2013

Academic Editor: Don Mahinda Vilathgamuwa

Copyright © 2013 S. Umashankar et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


This paper presents the research platform for real-time digital simulation applications which replaces the requirement for full-scale or partial-scale validation of physical systems. To illustrate this, a three-phase AC-DC-AC converter topology has been used consists of diode rectifier, DC link, and an IGBT inverter with inductive load. In this topology, rectifier as well as inverter decoupled and solved separately using decoupled method, which results in the reduced order system so that it is easy to solve the state equation. This method utilizes an analytical approach to formulate the state equations, and interpolation methods have been implemented to rectify the zero-crossing errors, with fixed step size of 100 μsec is used. The proposed algorithm and the model have been validated using MATLAB simulation as m-file program and also in real-time DSP controller domain. The performance of the real-time system model is evaluated based on accuracy, zero crossing, and step size.