Multiarea Deregulated Automatic Generation Control Scheme of Power System Using Imperialist Competitive Algorithm Based Robust Controller

ABSTRACT

This paper is focused on design and application of proportional integral derivative (PID) controller for deregulated multiarea automatic generation control (AGC) scheme utilizing the imperialist competitive algorithm (ICA) under various electricity market transactions. A multiarea hydro thermal 75-bus real power system is considered as a test system for deregulated AGC scheme. Simulation study results demonstrate the effective performance of controller on various load disturbance scenarios. The performance of ICA-tuned PID controller is also compared with genetic algorithm (GA)-tuned PID controller. The comparative results show that ICA–PID controller has higher convergence rate, smaller settling time, reduced oscillations than GA-tuned PID controller, i.e. reaching to better solution. Robustness of ICA–PID controller is also checked to determine its response towards system parameters uncertainties through sensitivity analysis. It is seen that the performance of PID controller tuned by ICA algorithm is robust for the system parameter uncertainties while GA–PID controller performance degrades.

KEYWORDS:

• Automatic generation control
• Deregulation
• Imperialistic competition algorithm
• Optimization
• PID controller
• Power system control

DISCLOSURE STATEMENT

No potential conflict of interest was reported by the authors.

Additional information

Notes on contributors

Nagendra Kumar

Nagendra Kumar received the MTech degree in signal processing and control engineering from the National Institute of Technology (NIT), Hamirpur, in 2010. Currently, he is pursuing PhD at IIT Roorkee (U.K). His research interests include power system optimization, deregulation, power system generation and control.

Barjeev Tyagi

Barjeev Tyagi received BTech degree in electrical engineering from University of Roorkee (India) in 1987 and PhD degree from IIT Kanpur in 2006. Presently, he is a faculty member in Electrical Engineering Department at Indian Institute of Technology, Roorkee (India). His research interests include control system, power system deregulation, power system optimization and control.

E-mail: [email protected]

Vishal Kumar

Vishal Kumar received the PhD degree in power system engineering from Indian Institute of Technology, Roorkee (IITR), India, in 2007. Currently, he is a faculty member in the Department of Electrical Engineering, Indian Institute of Technology, Roorkee. His research interests include power distribution system, operation and control, digital design and verification.

E-mail: [email protected]