Donkey and Smuggler Optimization Algorithm-based Degree of Freedom Controller for Stability of Two Area Power System with AC-DC Links

In this paper, the donkey and smuggler optimization algorithm (DSOA) is enforced for the controller design of a two-degree-of-freedom PID (2DOFPID) for the study of load frequency control (LFC). An extensively implemented model of two area reheat hydro-thermal (TARHT) system is chosen for investigation and carried out the analysis for a perturbation in step load (SLP) of 10% on area-1. Controller optimization is performed subjected to the objective index of integral time square error (ITSE). However, the efficacy of 2DOFPID is evidenced with traditional controllers of PID and PID plus filter (N). An investigation is further extended to the integration of the TARHT system with the DC line to obtain performance enhancement. Sensitivity test is conducted finally to showcase the robustness of the suggested control approach.