Ant colony optimization-based adjusted PID parameters: a proposed method 1Department of Energy Electrical Engineering, Graduate School, Woosuk University, Jincheon-gun, Chungbuk-do, South Korea 2College of Physics and Electronic and Electrical Engineering, Xiangnan University, Hunan, Chenzhou, China 3School of Water Conservancy and Hydroelectric Power, Hebei University of Engineering, Handan, Hebei, China DOI 10.7717/peerj-cs.1660 Academic Editor Muhammad Asif Subject Areas Adaptive and...