Integration and Control of a Hybrid Isolated System using SMC based Nine Switch Converter

Abstract

This work is based on the integration and power control of a wind micro hydro hybrid autonomous system. The system comprises of a self excited induction generator based micro hydro system and a DFIG based wind power generation system which are integrated using a Sliding Mode Controller based Nine Switch Converter. The NSC controls the voltage both on the Rotor Side and the Stator Side of the DFIG. The DC link of the NSC houses a Battery Energy Storage System to provide active power support to the system. The reactive power support is provided through the terminals which are connected to the stator side of the DFIG. A Sliding Mode Controller is designed and implemented for robust power control of the system. The performance of the system is evaluated by subjecting the system to three different types of Local time varying loads i.e. Linear Load, Non-Linear Load and Dynamic Load. The above system is simulated and validated using MATLAB/Simulink environment.