Optimised automatic generation control of a hydrothermal power system with capacitive energy storage

Abstract EN

In this paper, Automatic Generation Control (AGC) of an interconnected power system with a Capacitive Energy Storage unit (CES) is studied.

The system transfer function model comprises hydro and thermal power generations with governor models and system load for studying the dynamic response for small load perturbations.

Integral controllers have been considered in both the areas whose optimal values are obtained by minimising the Integral Squared Error (ISE) technique.

The dynamic responses without and with CES unit are compared.

Simulation studies reveal that with the application of the CES unit, there is an improvement in AGC in terms of peak amplitudes and deviations in frequencies of both the areas.