Govorov V. Improved electrical distribution networks of cities in terms of weak correlation graphs loads and nonlinearity characteristics of electrical consumers

Object is electromagnetic process in electrical distribution networks mist.Meta research is to improve the efficiency of electricity supply systems in cities based on consideration of the weak correlation graphs loads and nonlinearity characteristics parameters elektropryymachiv.Metody research. Solution of problems in the thesis achieved on the basis of the fundamental methods of electrical engineering, mathematical analysis, probability theory and mathematical statistics. In the study of processes in electrical networks with discharge lamps used methods Perry harmonic analysis, and in assessing the effectiveness network mode - method Aere. The reliability of the research confirmed the correct use of numerical methods of calculation, high convergence calculation results modes of electric networks operating in conditions of weak correlation graphs loads and nonlinearity characteristics of electro with experimental results. Scientific novelty of the results: the first time the features of the flow of reactive power in the electrical distribution network bridge with lighting load, which differ by the presence of reactive power shift that is due to the inertia of charges lighting power consumers and power distortion, which is due to nonlinearities consumers, further developed the theory of jet power, based on the definition of a new subspecies of power that occurs in the power grids of the lighting load and due to the inertia of the charge carriers in the plasma discharge lamps, which provides more accurate calculation mode power distribution networks were further developed methods of optimization of electrical networks based on consideration of social the effects of noise, caused by the influence of the higher harmonics are combined using the method of weight coefficients and alignment criteria optimization to normalized form, provide the possibility of taking into account the numerically disproportionate criteria of economic and social efficiency were further developed methods for calculating electric networks inharmonious voltages and currents based on a separate calculation of reactive power shift and distortion and determining their fate in the total reactive power, thus providing the possibility of resolving compensation and, on this basis, reducing the voltage drops and power networks. Developed and patented Ukraine, method and program of calculation of electrical networks inharmonious current and voltage implemented in AK "Kharkivoblenergo" (c. Kharkov). Theoretical and practical results of dissertation research the educational process Kharkiv National University named after A. Municipal Economy Beketov Ukrainian Engineering and Pedagogical Academy in teaching the course "Lighting Electrical networks and systems" and "Theory of automatic control", "electricity industry and cities", "Innovative energy technologies." Scope: elektrichni distribution network bridge.