Известия высших учебных заведений. Поволжский регион:Технические науки (Nov 2024)
Automated system for regulating output voltages of electrical substations of the radial power supply system
Abstract
Background. In accordance with the requirements of regulatory documents, one of the most important requirements for the quality of electrical energy is a constant voltage level at the output of transformer substations when loads change throughout the day. Regulating the transformation ratio of one of the substations can lead to a change in voltages on the high side of other substations that are part of a single power supply system. Therefore, the procedure for regulating transformation ratios of substations must be considered in its entirety. The purpose of the work is to develop an automated system for regulating the output voltages of substations of the power supply system in various operating modes, taking into account the interaction between substations from the condition of obtaining voltage values on the consumer side that meet the requirements of the electrical installation rules and GOST 32144-2013. Materials and methods. An analysis of the voltage distribution along the radial power supply system at various rated voltages of transmission lines and the regulation of system parameters using the methodology for calculating the transformation ratios of power transformers from the condition of ensuring voltages on the substation buses in accordance with the requirements of the electrical installation rules and GOST 32144-2013 are presented. The developed model was analyzed in the MatCad system. Results. The computer experiment data showed full compliance of the output voltage levels of the substation transformers with the requirements of the electrical installation rules and GOST 32144-2013. Conclusions. The developed algorithm and program for calculating transformation ratios of power transformers can be used for both radial and more complex configurations of power supply systems.
Keywords
