Control of autonomous wind diesel battery hybrid power system

This paper deals with the control of an autonomous wind diesel battery hybrid power system having a squirrel cage induction generator (SCIG) for a wind energy conversion system and a synchronous generator for a diesel generator (DG) set. A set of back to back connected voltage source converters (VSCs) and battery energy storage are used in order to control the speed of IG and to keep the frequency and voltage constant during the varying loads and wind speeds. The SCIG torque is controlled by the generator side VSC using a field oriented control. The voltage and frequency are controlled by the load side VSC by means of modified adaptive linear element (Adaline) control algorithm. The complete control system is developed, analyzed, and validated by using MATLAB/SIMULINK software.