Electricity consumption management in a competitive electricity market

A power system is characterized by the nonuniform nature of electric energy consumption. In the competitive electricity market, the electric energy cost is the spot one, which is determined for every fixed time interval and can significantly differ with the hours of maximum and minimum loads, on business and nonbusiness days, etc. The consumer is primarily interested in reducing the energy consumption during the peak load hours and shifting it onto the off load periods, which results in load leveling and allows for energy saving. To solve the problem of improving the energy consumption reliability and safety, maintaining the power system stable operation as well as optimizing the electric energy cost, the following solutions can be proposed:- limiting the energy consumption during the peak load periods and shifting it onto the off load periods; - making long-term bilateral contracts on energy and power purchasing; - locating the low capacity sources (distributed generation) near the consumers; - introducing energy saving technologies into goods and services production. The paper presents the analysis of the effect of energy consumption limitations on the consumer's profit in the short-term perspective. The loss function for consumers can be expressed mathematically in different ways. The criterion expressions for the energy consumption are defined provided the loss of profit is minimum. The consumer sector is shown to have to be of a greater regulating power in the electricity spot market operation. © 2014 WIT Press.International Journal of Safety and Security Engineering;International Journal of Sustainable Development and Planning;WIT Transactions on Ecology and the Environmen

The prediction of electric energy consumption using an artificial neural network

This paper presents the results of the studies on forecasting the electrical loads for a megapolis district with the use of artificial neural networks (ANN) as one of the most accomplished and promising solutions to this challenge. A theoretical approach to the issue is combined with the results of experimental studies using real schedules. © 2014 WIT Press.International Journal of Safety and Security Engineering;International Journal of Sustainable Development and Planning;WIT Transactions on Ecology and the Environmen

Optimal placement units of distributed generation

In this paper a new approach to solve the problem of optimal placement of distributed generation sources is proposed. The method is aimed at improving the reliability of electricity supply. The mathematical model of the optimal placement of distributed generation sources (DG) based on improving the reliability of power supply as the optimization algorithm used a genetic algorithm. The results of experimental calculations and comparative analysis of the algorithm is shown. © 2014 WIT Press.International Journal of Safety and Security Engineering;International Journal of Sustainable Development and Planning;WIT Transactions on Ecology and the Environmen

Training model of the power-station working in the electrical power-system

Отличительной особенностью современного этапа развития человечества является всё большая компьютеризация, автоматизация и информатизация всех аспектов его деятельности. С каждым днем компьютер и информационные технологии занимают все большую роль в жизни каждого из нас. Общение, работа, обучение - все эти процессы жизнедеятельности человека в настоящее время связанны с использованием компьютерных технологий. Поэтому сфера обучения для того, чтобы готовить высококвалифицированных специалистов, не должна отставать от общего вектора научно-технического прогресса.Computerization and automation present the distinctive feature of mankind development today. New technologies play the important role in our life. They find the application in the most aspects of human activity. According with it facts modern technical universities of higher education should not go behind the general vector of scientific and technical progress for the preparing of highly skilled experts