Abstract
Performance index based analysis is made to examine and highlight the effective application of Particle Swarm Optimization (PSO) to optimize the Proportional Integral gains for Load Frequency Control (LFC) in a restructured power system that operates under Bilateral based policy scheme. Various Integral Performance Criteria measures are taken as fitness function in PSO and are compared using overshoot, settling time and frequency and tie-line power deviation following a step load perturbation (SLP). The motivation for using different fitness technique in PSO is to show the behavior of the controller for a wide range of system parameters and load changes. Error based analysis with parametric uncertainties and load changes are tested on a two-area restructured power system. The results of the proposed PSO based controller show the better performance compared to the classical Ziegler-Nichols (Z-N) tuned PI and Fuzzy Rule based PI controller.
Highlights
In general Load Frequency Control (LFC) role is to ensure reliable operation of interconnected power systems by adjusting generation to minimize frequency deviations and regulate tie-line flows
Consider a system where all Generation Companies (GENCOs) in each area participate in LFC, i.e. area control error (ACE) participation factors are α1 = 0.75, α2 = 1 − α1 = 0.25; α3 = 0.5, α4 = 1 −α3 = 0.5
Case I: In this case it is assumed that all Gencos are participating in the LFC task as per contract
Summary
In general LFC role is to ensure reliable operation of interconnected power systems by adjusting generation to minimize frequency deviations and regulate tie-line flows. Operating the power systems in a new environment will certainly be more complex than in the past, due to restructuring and a considerable degree of technical and economical interconnections. How to cite this paper: Anitha, P. and Subburaj, P. (2016) Integral Performance Criteria Based Analysis of Load Frequency Control in Bilateral Based Market. Subburaj except that services provided by participants are classified as ancillary [1]. For satisfactory operation of power units running in parallel, it is most desirable to have the frequency and tie-line power fixed on their nominal and scheduled values even when the load alters and, to remove ACE
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