Керування компенсаційно-симетрувальними пристроями за багатократної несиметрії навантажень в розподільних мережах

Abstract

The dissertation is devoted the decision of a scientific problem which consists in optimization of control process of balancing devices at repeated load asymmetry in the distributive networks. The expediency of use of local criteria of balancing on powers, currents or return sequence conductivities of loadings with possibility of regulation of degree of balancing of loadings is proved. Conditions of control of three- and diphasic balancing devices at repeated load asymmetry are proved. Influence of static characteristics of knots of loadings on accuracy of balancing is analysed. The device providing automatic balancing of currents and voltages of three-phase system in which basis of work the received conditions of balancing of loadings are put is offered. The conducted researches: the sensitivity of additional active power losses caused by the voltage asymmetry, sensitivity of the reverse sequence voltage when turning the balancing element of balancing device. By their results a principle of balancing and the mathematical model of control by asymmetry of a voltage mode taking into account mutual influence of balancing devices has had the further development. On the basis of the spent experimental researches of voltage and currents asymmetry practical recommendations about an establishment of compensatory-balancing devices are made, the feasibility report on expediency of application of the developed criteria and algorithms of control of balancing devices is resulted.