Analysis of PID controller for the load frequency control of static synchronous series compensator and capacitive energy storage source-based multi-area multi-source interconnected power system with HVDC link
by Rajendra Kumar Khadanga; Amit Kumar
International Journal of Bio-Inspired Computation (IJBIC), Vol. 13, No. 2, 2019

Abstract: In this research work, a maiden approach is made by using the static synchronous series compensator (SSSC) and capacitive energy storage (CES) devices as a frequency damping controller in the most realistic scenario of automatic generation control (AGC) of a multi-area multi-source (thermal-hydro-gas) interconnected power system along with the consideration of AC tie-line and HVDC link. At first, the performance of the HVDC link with AC tie line is investigated for the considered power system. A PID controller is utilised to control each of the generating units in all the areas and shows its superior performance compared to other conventional controllers. A hybrid particle swarm optimisation (PSO) and gravitational search algorithm (GSA) is proposed for tuning the gains of the PID controller and is compared with some conventional controllers. Later the effect of SSSC and CES, when added as a damping controller to the power system is analysed. It is observed that, with the addition of the SSSC and CES as a damping controller along with the optimised PID controller, the dynamic performance of the proposed interconnected power system is improved.

Online publication date: Thu, 14-Mar-2019

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