Modelling and simulation of a wind/diesel hybrid power system

Abstract

In remote and isolated areas far from the grid, it may not be an economically viable option to supply electric power from the grid. This is due to the high cost of transmission lines and higher transmission losses that accompany distribution of centrally generated power to remote areas. In such cases hybrid systems such as wind/diesel generators are found to be the most reliable, preferred and attractive alternative source of power supply. This paper presents the modelling and performance analysis of wind/diesel hybrid generating system. To regulate the frequency and voltage output of the wind generator, an AC-DC-AC scheme using SPWM technique is employed. To evaluate the performance and stability of the hybrid system, it is simulated for different disturbances involving variation in wind speed and load conditions using EMTDC/PSCAD software.