Impact of grid connected solar power on load frequency control in restructured power system

This paper presents the traditional automatic generation control (AGC) strategy. For the simulation Gujarat power system has been divided in two areas. Each area consists of two Generating Companies (GENCOs) and two Distribution Companies (DISCOMs). For the visualization of power pool company (POOLCO) based contract and bilateral contract by distribution companies (DISCOMs) the DISCO participation matrix (DPM) has been used. Sudden load variation results in frequency deviations have been presented. Additionally, impact of grid connected solar power on frequency has been observed. Due to blinking nature of energy generated from solar the frequency deviation increases, which further add to the variation caused by load deviation. The two area power system has been simulated in MATLAB/Simulink environment. Finally, it has been strongly recommended the need of storage technology to regulate frequency deviations. From the literature review it has been realize that there is necessity of storage of particular amount of the power during such fluctuations, which can be fulfilled by Battery energy storage (BES).