Available online at www.sciencedirect.com ScienceDirect Energy Reports 6 (2020) 304–309 www.elsevier.com/locate/egyr The 6th International Conference on Power and Energy Systems Engineering (CPESE 2019), 20–23 September 2019, Okinawa, Japan Position controlling of Sun Tracking System using optimization technique Anuj Rawat a , S.K. Jha b,∗ , Bhavnesh Kumar b a Netaji Subhas Institute of Technology, Dwarka, New Delhi, India b Netaji Subhas University of Technology (Formerly NSIT), Dwarka, New Delhi, India Received 3 October 2019; accepted 22 November 2019 Abstract The prime objective of this paper is to devise optimization technique for the position control of Sun Tracking System (STS). In order to control the position of this system, PID controller tuned by different methods such as Genetic Algorithm (GA), Particle Swarm Optimization (PSO) and Teaching Learning Based Optimization (TLBO) is used. These methods have been carried out to determine the most optimized and robust one for the position control. The simulated results for nominal and perturbed value of servo amplifier gain show that the PID controller tuned with TLBO technique gives most optimized and robust performance in comparison to other tuning techniques. c ⃝ 2019 Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer-review under responsibility of the scientific committee of the 6th International Conference on Power and Energy Systems Engineering (CPESE 2019). Keywords: Sun-Tracking System; Teaching Learning Based Optimization Algorithm; Sun axis; Solar panel axis 1. Introduction These days, scientists and researchers all over the world are sparing no efforts to replace conventional energy with renewable one. Conventional methods of energy generation play very pivotal role for causing the greenhouse effect and global warming [1,2]. Alternatively, solar photovoltaic (PV) systems can be used to generate electricity with nonpolluting process and abundantly available solar radiation. PV systems are very useful for the remotely located places which do not have grid connectivity [3]. A PV cell generates maximum output when light rays from the sun get directly incident over it. Generally, a sun tracking system (STS) is used to harness the energy of the sun to maximum extent [4]. These types of mechanisms are essential for applications like space vehicles. In STS, position of the solar panel is continuously aligned to the sun’s axis. STS can be implemented either to operate in open loop or in closed loop. In first, usually predefined trajectory is followed by it, whereas in closed loop STS continuously solar panel is aligned towards ∗ Corresponding author. E-mail address: jhask271@gmail.com (S.K. Jha). https://doi.org/10.1016/j.egyr.2019.11.079 2352-4847/ c ⃝ 2019 Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/ licenses/by-nc-nd/4.0/). Peer-review under responsibility of the scientific committee of the 6th International Conference on Power and Energy Systems Engineering (CPESE 2019).