Open AccessComparison of Various Load Frequency Control Schemes in Restructured Power System Environment
Author(s) -
Nagendra Kumar,
Jitendra Kumar,
Ravi Chaurasia,
Himanshu Sharma
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2007/1/012028
Subject(s) - pid controller , control theory (sociology) , settling time , perturbation (astronomy) , derivative (finance) , electric power system , nonlinear system , mathematics , computer science , power (physics) , mathematical optimization , control (management) , control engineering , engineering , temperature control , economics , finance , physics , step response , quantum mechanics , artificial intelligence
This paper presents comparison of performances of secondary controllers like Integral (I), Proportional-Integral (PI), Integral-Derivative (ID), Proportional-Integral-Derivative (PID) and Integral-Double Derivative (IDD) as load frequency control scheme. The controllers have been tested on two equal areas thermal power system with non-reheat turbines in the presence of nonlinearity i.e. generation rate constraint (GRC) of 3% per minute. The disco participation matrix (DPM) is considered for various power transactions between Genco and Discos in both areas. A well-known optimization algorithm i.e. genetic algorithm (GA) is used to determine the optimal parameters of different controllers. Three cases i.e. load perturbation in one area only, load perturbation in both areas and more demand asked by Disco than the contract have been considered to check the response of controllers. Comparative analysis of the results obtained for all three cases show that Proportional-Integral-Derivative (PID) controller provides better performance than other controllers in terms of settling time..