Luchko A. Efficiency increasing of the electric drive of household immersed pumps using switched reluctance engines

The object is electromechanical processes in a drive household of the immersed pump with switched reluctance engine (SRE). The subject is the electrical machine switched complex based on SRE with autoswitching and current regulator which is a drive household of the immersed pump. The objective is the research of electromechanical modes of electric drives with switched reluctance engine and development of effective immersed pumps on the basis of the researches. Tasks: analysis of the present researches status in the field of electric drives with SRE; for the purpose of defining basic ways of efficiency increasing of the given drives; researching stationary and dynamic modes at average and high rotating velocities of electric drives with SRE for the purpose of defining technical opportunities of the electric drive within the investigated range of rotating velocities; development of mathematical model of the electric drive with SRE which would allow to take into account electromechanical modes of operation SRE at high rotating velocities and features of the immersed pump; development of engineering calculating methods for electric drives with SRE; optimization of the electromagnetic moment depending on parameters of the electronic switchboard and the engine; experimental examination of obtained theoretical results' reliability; development of an industrial sample of the immersed pump with electrical drive on the basis of switched reluctance engine. Using of methods: of the mathematical analysis, numerical methods of the solving of the nonlinear differential equations, methods of the analysis of linear and nonlinear electric circuits, methods of mathematical and physical modeling, date analysis methods - polynomial regress, cubic interpolation, minimization of criterion functions (mistake). Practical value: the expediency of using of the electric drive with switched reluctance engine in household immersed pumps is approved; technical opportunities of the electric drive about the SRE are defined at average andhigh rotating velocities; the engineering design procedure of static mechanical and adjusting characteristics of electric drives with SRE was developed. Scientific novelty: the mathematical model a electro-machine switching complex on based SRE with autoswitching and current restriction which takes into account pulsations of the moment and features of the electric drive operation in the structure the immersed pump is developed for the first time; calculation of the electromagnetic moment of drive with SRE is improved using proposed analytical function of the magnetization that has allowed to obtain more exact value of the SRE electromagnetic moment at high rotating velocities; the theory of electric drives with SRE was the further developed, which have allowed to specify calculation of electromechanical modes of the pumps electric drive with when developing of switched reluctance engine on the basis of the new received dependences. The results of the work were used when developing of a series household immersed pumps such as БПЦИ-0,63