Fuzzy logic based active power generation dispatching considering intermittent wind power plants output

Abstract

Nowadays, renewable energy becomes a very interesting topic to be investigated for its continuity. In this research, type of renewable energy investigated is wind energy, which is a very promising technology to reduce the thermal power plants operating costs in the generation process, whether as a stand-alone, micro-grid or in an interconnected system. Nevertheless, the fluctuated wind energy (WE) will affect both the output of wind power plants (WPP) as well as the stability of the system. This paper presents a scheme for active power flow generation dispatching as a solution of the fluctuated WPP's output in an interconnected system in line with the fluctuated wind speed condition. The proposed active power generation scheme uses fuzzy logic controller (FLC). In this FLC, wind's speed assumptions are used as the input, whereas the outputs are the active power generated by the WPP and the thermal power plants (TPP). This FLC based active power generation provides guidelines for the system's operator for their daily power dispatching hence they can supply power continuously while maintaining system's stability.