https://orcid.org/0000-0002-7229-8374
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Abstract
In this paper, two robust controllers have been designed to automatically regulate the synchronous generator voltage for an extensive domain of the system parameters in a single-machine infinite bus (SMIB) framework. These two controllers are based on the fuzzy set, and the type-2 fuzzy logic plus the proportional–integral (PI) operation, respectively. The Fuzzy and Type-2 fuzzy logic decisions are independent of the system parameters which increase the system robustness against the uncertainties and disturbances, and the PI controller can eliminate the terminal voltage steady-state error. The performance of the controllers has been optimized by adjustment of the four coefficients of each controller through Artificial Bee Colony, Imperialistic Competitive Algorithm, and Particle Swarm Optimization (PSO). Five scenarios with four different patterns for reference input and disturbances have been considered to show the competency of the designed controllers. The simulations which have been done by PSO optimization results show the higher robustness of these controlling combination against the load fluctuations, the sequence of the input voltage, and changes in the system parameters, such as the gains and time constants of the amplifier, exciter, and generator in contrast to optimized PID with metaheuristic algorithms.
Additional information
Notes on contributors
Mohammadreza Modabbernia
Mohammadreza Modabbernia received the BS degree in electronic engineering and MS degree in control engineering from Khajeh Nasir Toosi, the University of Technology, Tehran, Iran in 1995 and 1998, respectively. He is the staff member of Electronic group of Technical andVocational University Rasht Branch, Rasht, Iran, from 2005. He is currently the PhD candidate of electrical engineering in Lahijan Branch of Islamic Azad University. His research interests include robust control, nonlinear control, power electronics and power system dynamics. Email: [email protected]
Behnam Alizadeh
Behnam Alizadeh received his BSc degree in electrical engineering from the University of Tehran in 2005. He got his MSc (Hons) and PhD degrees both in power systems engineering, from Iran University of Science & Technology in 2007 and 2014, respectively. Since 2012, he has been with the Electrical Engineering Department, Islamic Azad University of Lahijan, where he is now an assistant professor.His research areas include different topics in power systems planning, and operation. Email: [email protected]
Alireza Sahab
Alireza Sahab received his BSc degree in electrical engineering from Khajeh Nasir Toosi the University of Technology in 2001. He got his MSc and PhD degrees both in control engineering from Shahrood the University of Technology in 2003 and 2009, respectively. Since 2004, he has been with the Electrical Engineering Department, Lahijan Branch Islamic AzadUniversity, where he is now an assistant professor and head of the department. His research areas include nonlinear systems, robust and optimization.
Maziar Mirhosseini Moghaddam
Maziar Mirhosseini Moghaddam received his BS degree in electrical engineering from Shiraz University, Iran, the MS degree in control engineering from Ferdowsi University of Mashhad, Iran, and a PhD degree in electrical engineering from Science and Technology Branch, Islamic Azad University, Iran, in 1999, 2002, and 2012, respectively. He works as an assistant professor in Lahijan Branch, Islamic Azad University, Iran. His research interests include energy management, power system operation and power system planning. Email: [email protected]