Bodunov V. The operation mode control of low load electrical networks with distributed generation sources

The submitted dissertation is devoted a problem of the energy efficiency of operating modes of the agricultural electric power systems with distributed generation (DG). The systematic analysis of existing principles of operation mode control of electric networks with DG was carried out; developed approaches to the formation of the rational mode of electricity generation with DG; justified principles of energy islands while consumers loss the main power supply; mathematical methods for the estimation of rational power of DG based on prospective development of DG were worked out. On results of the dissertation next conclusions are done: the method of evaluation of the power supply systems modes with DG, that takes into account interests of DG owner, electro supplier organization and other consumers is developed; the expediency of the simplified evaluation of power distribution in the tasks of optimal placing and sizing of DG is proved; the method of determination of minimum size of DG for the expedient centralized control a generation, is developed; the interval method of calculation of DG size, that takes into account perspective development of DG, is offered; efficiency of the use of "dynamic energy islands" is proven. Keywords: distributed generation, energy efficiency, reliability of power supply, energy island, electric power losses, electrical power supply network.