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Dynamic operation and control of a hybrid wind-diesel stand alone power systems

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4 Author(s)
Haruni, A.M.O. ; Centre of Renewable Energy & Power Syst. (CREPS), Univ. of Tasmania, Hobart, TAS, Australia ; Gargoom, A. ; Haque, M.E. ; Negnevitsky, M.

This paper presents the dynamic operation and control strategies of a hybrid wind-diesel-battery energy storage based power supply system for isolated communities are investigated. Control strategies for voltage and frequency stabilization and efficient power flow among the hybrid system components are developed. The voltage and frequency of the hybrid wind-diesel system is controlled either by a load side inverter or by diesel generation depending on the wind conditions. During high penetration of wind, the wind turbine supplies the required power to the load. A battery energy storage system is connected to the dc-link to balance the power generated from the wind turbine and the power demand by load. Under low wind conditions, a diesel generator is used with wind energy conversion system to generate the required power to the load. A power sharing technique is developed to allocate power generation for diesel generator in low wind conditions. Results show that the control strategies work very well under dynamic and steady state condition to supply power to the load.

Published in:

Applied Power Electronics Conference and Exposition (APEC), 2010 Twenty-Fifth Annual IEEE

Date of Conference:

21-25 Feb. 2010