Load Frequency Control of Single Area Thermal Power System with Biogeography-Based Optimization Technique

2018 ◽  
pp. 11-22
Author(s):  
Jagatheesan Kaliannan ◽  
Anand Baskaran ◽  
Nilanjan Dey ◽  
Amira S. Ashour
Keyword(s):  
Power System ◽  
Frequency Control ◽  
Thermal Power ◽  
Optimization Technique ◽  
Load Frequency Control ◽  
Load Frequency ◽  
Thermal Power System

Design of Specification Oriented Compensator with a PID Controller for Load Frequency Control

2014 ◽  
Vol 573 ◽  
pp. 248-253
Author(s):  
Soundarapandian Anbarasi ◽  
Srinivasan Muralidharan
Keyword(s):  
Power System ◽  
Pid Controller ◽  
Frequency Control ◽  
Thermal Power ◽  
Absolute Error ◽  
Load Frequency Control ◽  
Integration Time ◽  
Load Frequency ◽  
Thermal Power System ◽  
The Stability

This paper proposes a design of Specification Oriented Compensator (SOC) with a Proportional Integral Derivative (PID) controller for Load frequency Control (LFC) in a thermal power system. The phase margin which is derived from the computationally tuned response of PID controller is considered as a desirable specification and it is used to design the compensator. The different structures of compensator like lead, lag and lead-lag were first simulated in a single area power system and better results are found in Specification Oriented Lead Compensator (SOLC). The simulation study of two area thermal power system with SOLC is then performed and their frequency deviation and tie-line power deviation characteristics are compared with conventional PID controller, Integral controller and also with a non controller system. The Integral Absolute Error (IAE) and Integration Time Absolute Error (ITAE) are considered as performance indices to scrutinize the system robustness. The simulation studies clearly reveal the superiority of the proposed SOLC with PID controller over others in way of enhanced system transient response, improved the stability and robustness of the system. All the simulations in this paper are performed using Matlab software.

scholarly journals Non-integer IMC based PID Design for Load Frequency Control of Power System Through Reduced Model Order

2018 ◽  
Vol 8 (2) ◽  
pp. 837
Author(s):  
Idamakanti Kasireddy ◽  
Abdul Wahid Nasir ◽  
Arun Kumar Singh
Keyword(s):  
Power System ◽  
Frequency Control ◽  
Thermal Power ◽  
Internal Model Control ◽  
Load Frequency Control ◽  
System Model ◽  
Load Frequency ◽  
Load Disturbance ◽  
Model Control ◽  
Thermal Power System

This paper deals with non-integer internal model control (FIMC) based proportional-integral-derivative(PID) design for load frequency control (LFC) of single area non-reheated thermal power system under parameter divergence and random load disturbance. Firstly, a fractional second order plus dead time(SOPDT) reduced system model is obtained using genetic algorithm through step error minimization. Secondly, a FIMC based PID controller is designed for single area power system based on reduced system model. Proposed controller is equipped with single area non-reheated thermal power system. The resulting controller is tested using MATLAB/SIMULINK under various conditions. The simulation results show that the controller can accommodate system parameter uncertainty and load disturbance. Further, simulation shows that it maintains robust performance as well as minimizes the effect of load fluctuations on frequency deviation. Finally, the proposed method applied to two area power system to show the effectiveness.

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