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Single-loop voltage and frequency control of stand-alone three-phase four-wire renewable energy conversion system with battery storage

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2 Author(s)
J. K. Chatterjee ; Department of Electrical Engineering, Indian Institute of Technology Delhi, New Delhi 110016 India ; Priyesh J. Chauhan

In this paper, single control loop based scheme for regulation of voltage and frequency of Self Excited Induction Generator (SEIG) based stand-alone 3-phase 4-wire renewable energy conversion system under source and balanced/unbalanced load perturbations is presented. The regulation is accomplished by maintaining reactive and active power balance across individual phases of SEIG using a Generalized Impedance Controller (GIC). GIC is a PWM voltage source converter with battery at its dc-bus, having controlled four-quadrant equivalent impedance. Unique feature of the scheme is successful control of both amplitude and frequency of the SEIG terminal voltage using only 3-phase stator voltage feedback and no frequency feedback. A mathematical model of the SEIG-GIC-Load 3-phase 4-wire integrated system has been developed and simulated in MATLAB/Simulink to validate practicability of the generating system under variety of source and load perturbations.

Published in:

Energy, Automation, and Signal (ICEAS), 2011 International Conference on

Date of Conference:

28-30 Dec. 2011