Scientific journal
Scientific Review. Technical science
ISSN 2500-0799
ПИ №ФС77-57440

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INVERTER DEVELOPMENT OF CASCADE TYPE FOR SUBMERSIBLE PUMP MOTORS

Milyusha I.V. 1 Mirzin A.M. 1 Korotaev A.D. 1 Shutemov S.V. 1
1 Federal State Educational Institution of Higher Professional Education “Perm National Research Polytechnic University (PNIPU)” (Russia
The article describes the frequency converter cascade type. It is necessary to supply submersible motor at great depths. When it is necessary to eliminate spurious harmonics. Clog mains harmonics and negatively affect the insulation of the cable and motor. By adjusting the extraction rate according to the production rate can be increased life of the well. To solve these problems considered cascade inverter consisting of a three-phase multiple winding transformer and power inverters, IGBT-transistors. A device power cell. View of one embodiment of forming a control signal for IGBT-transistors, through which is possible to obtain an almost perfect sine wave output inverter. This principle is described as an example of single-phase bridge inverter. The diagram of the control system and diagram incorporating transistor pairs. Mathematical model of the “inverter-motor” made ​​in Simulink. Describes all the key building blocks of the model. Harmonic analysis is made using the “Powerqui”. On the basis of this analysis, it was concluded that the feasibility of using the cascade inverter for powering a cylindrical linear motor valve submersible pumps.