Ways to improve rural local power supply system

Abstract

Abstract. Due to the large length of transmission lines in rural areas, significant losses in these areas are inevitable and will increase with increased electricity consumption. In this regard, the development of ways to reduce the losses of electricity during its transportation by transmission lines is a pressing scientific problem.

Recently, asynchronous generators with valve excitation have begun to find themselves in European countries. Their great advantage is the ability to operate in a wide range of speeds. There is no industrial production of such generators in Ukraine.

The purpose of the study is to develop perspective directions for the further development of energy efficient wind and diesel-wind systems of distributed generation with variable speed wind turbines in terms of their structural construction and principles of operation.

Possible types of distribution systems for rural areas are considered. Due to the large branching of power grids, it is advisable to do so using small sources or distributed generation systems with power from a few kilowatts to tens of megawatts. Such systems can be created with the involvement of micro-hydroelectric power plants, wind power plants, electrodiesel and gas turbine units, solar panels and electrochemical energy storage.

Schematic and technical solutions of low and medium voltage distributed diesel generating systems are developed and proposed. Connection of such systems directly at the point of connection of consumers reduces losses in the distribution network. They are capable of operating both on the network and autonomously during emergencies in the power grid.

Key words: distributive generation systems, power engineering, energy, generator, wind power systems, network