Automatic Generation Control of a Wind Turbine Integrated Hydro-thermal Plant with Redox Flow Batteries for 2-Area Interconnected Power System

Abstract

In a large power system network, to curtail the frequency deviation and tie-line power, a fast-acting active power source, such as redox flow battery (RFB), can be presumed to be effective when it is connected with automatic generation control (AGC). A two-area diverse source system using thermal, hydro and wind power plant in either area is considered for the extensive study of the effect of simultaneous integration of RFB and wind units. To examine the system performance, 2 and 1% SLP in area 1 and area 2, respectively, are reflected on the model. To verify the system response, various types of controller such as proportional–integral (PI) and proportional–integral–derivative (PID) controller schemes are involved in the modelling. Also, a remarkable improvement of system response is observed when the PID controller is tuned with gravitational search algorithm (GSA).