Zinzura V. Automation of the voltage regulation process of the electric distribution networks by means of on-load tap-changers for power transformers

Object of research - the process of automatic voltage control in distribution networks. The aim of the study is to reduce the steady voltage deviation and the voltage unbalance in the distribution networks by automating the control process of tap-changer devices of power transformers. Problem solving work carried out by the methods of computer simulation, scalar and multicriteria optimization, methods of the theory of electrical circuits, methods of control theory, numerical methods for solving problems. The work formalized cotrol tasks contactless on-load tap-changers of power transformers with the most common in the distribution networks the connection scheme of the problem as multicriteria optimization and substantiate the method to solve these problems, developed algorithms for finding the final solution. The computer model of automatic control of contactless contactless on-load tap-changers to help assess the effectiveness of the proposed automatic control systems by computer simulation. The results of computer simulations, experimental studies and techno-economic evaluation confirmed the effectiveness and usefulness of the proposed work in automatic control systems.