RESEARCH OF CONFORMITIES TO LAW OF CHANGE OF RESISTANCE OF ISOLATION OF NETWORKS OF OPERATIVE DIRECT-CURRENT

Abstract

There is the marked importance of networks of operative direct-current(ODCN) of the hydroelectric power stations(renewable energy sources) in the article, the most widespread devices are considered for control of the state of ODCN. Presented external factors that most influence on the state of isolation of these networks, and also it is statistically investigational and presented in a graphic kind influence of environment(for example, rain, dew, fog, et cetera) and seasonality(winter, spring, summer, autumn) on the size of resistance of isolation of ODCN. The analysis of data testifies that most influence on the level of isolation is had a rain and dew, and in general her resistance most goes down in spring and autumn. On the basis of got these statistical dependences of levels of isolation of ODCN on the factors of environment the built dependence of probability of origin of decline of level of isolation of these networks less than 20kОм depending on the state and parameters of ODCN. The use of method of the criterion programming allowed to untie an ambivalent task and find the optimal values of the controlled parameters that provide maximal probability of prognostication of decline of level of isolation of networks of operative direct-current below than normative value.