


Volume 21 No 3 (2023)
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FREQUENCY STABILITY ANALYSIS OF THERMAL POWER SYSTEM WITH DIFFERENT STEAM CONFIGURATIONS
Shaalini. P. , Uma Maheswari. ,Ramachandran . , Mohanasundaram. , Nandagopal. , Rathinam.
Abstract
The load frequency control (LFC) of a single-area thermal power system is provided in this study. An
evolutionary method known as ant colony planning is used to enhance the features of the proportional-integralderivative (PID) controller, a typical industrial auxiliary controller (ACO). Three cost functions are looked at to
raise controller gain values. This study takes into account three different stem configurations in addition to
integral absolute error (IAE), integral temporal absolute error (ITAE), and integral square error (ISE) (non-reheat
turbine, single-stage reheat turbine, and double-stage reheat turbine).The effectiveness of the suggested approach
is further demonstrated by including non-linearity (Generation Rate Constraint, Governor Dead Band, and Boiler
Dynamics) into the same power system and changing the value of Step Load Perturbation (SLP) in each of the
three steam configurations. The operation of electricity systems under diverse conditions is investigated using
time domain analysis.
Keywords
Load Frequency Control (LFC), Proportional-Integral-Derivative (PID), Integral Square Error (ISE), Step Load Perturbation (SLP)
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