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Abstract
In this work, an attempt has been made to implement a fractional based internal model control (IMC) for automatic generation control (AGC) of power system. In general power system, models are complex and having higher orders, as a result design procedure of IMC controller for AGC becomes complicated one. In this work, model order reduction (MOR) techniques are introduced to reduce effort in designing controller for such a complex system. These techniques can capture dynamics of higher order power systems with lower order models without loosing inherent properties of system. In this paper, Nyquist-based model reduction technique is employed for integer order model compression. A simple structure fractional order filter in cascade with fractional order proportional integral derivative (FOPID-FOF) controller based on the IMC theory is developed for obtained lower order models to solve load frequency control (LFC) problem. The distinguished feature is the less number of tuning parameters for the design of fractional controller. The resultant controller is implemented for the single area power system in MATLAB environment. The simulation results are compared to show the effectiveness of the proposed method. Also, the proposed method is applied to two area PV-Reheated power system and three area non-reheated power system.
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No potential conflict of interest was reported by the authors.
Additional information
Notes on contributors
Idamakanti Kasireddy
Idamakanti Kasireddy received the MTech degree from National Institute of Technology, Jamshedpur, Jharkhand, India, in 2015. He is currently working towards the PhD degree at the Department of Electrical Engineering, NIT Jamshedpur, Jharkhand, India. His research interest is in application of control system in power and energy systems. Corresponding author. Email: [email protected]
Abdul Wahid Nasir
Abdul Wahid Nasir received the MTech degree from BS Abdur Rahman University, Chennai, India, in 2014. He is currently working towards the PhD degree at the Department of Electrical Engineering, NIT Jamshedpur, Jharkhand, India. His research interest is in process control and model based control. Email: [email protected]
Arun Kumar Singh
Arun Kumar Singh received the BSc degree from the Regional Institute of Technology, Kurukshetra, Haryana, India, MTech degree from the IIT(BHU), Varanasi, UP, India, and PhD degree from the Indian Institute of Technology, Kharagpur, India. He has been a professor in the Department of Electrical Engineering at National Institute of Technology, Jamshedpur, since 1985. His research interests are in control system, control system in power and energy systems and non conventional Energy. Email: [email protected]