Reactive power compensation by using indirect self tuning regulator

The paper deals with the problem of voltage control in transmission system at the regulation node in the presence of unknown load variation. Voltage control is obtained by controlling the reactive power at the regulation node in transmission system. To control the reactive power at the regulation node in the presence of unknown load variation adaptive indirect self tuning approach is used. The design indirect self tuning regulator is developed based on pole placement technique which requires the solution of Diophantine equation. The performance of proposed indirect self tuning control technique is analyzed in MATLAB Environment under different loading conditions. The results satisfied the performance of indirect self tuning regulator for different loading conditions.