Using Umbrella-Type Motors to Improve the Characteristics of Irrigation System Pumping Units

  • Maksim A. MARKOV
  • Nikolay V. KOROVKIN
  • Viktor S. TRETIAKOV
  • Tat'yana G. MINEVICH
DOI: https://doi.org/10.24160/0013-5380-2023-11-49-58
Keywords: synchronous electric motor, prototype improvement, electric motor efficiency, reduction of the rotor mass, reduction of shaft beats, increase of power capacity, irrigation system pumping unit, EMP segments

Abstract

The development of the design of a motor for an irrigation system pumping unit is considered. The aim of the work is to modernize the electromechanical equipment of existing pumping stations by its full or partial replacement with installing the modernized equipment on the existing foundation. Umbrella, suspended and semi-umbrella motor layouts were considered as design options for matching it with the new or existing pumping equipment at the station. The electromagnetic, windage, and thermal design analyses, as well as the dynamics and strength analysis of the synchronous motor main components were performed. The motor’s electronic mockup was elaborated before the basic design stage. A number of technical problems have been solved: reducing the motor shaft length, decreasing the motor--pump unit beats and vibration; reduction of the motor mass and overall dimensions, and, accordingly, a decrease in material intensity and manufacturing cost; increase in motor efficiency due to decreased windage and mechanical losses; and increase of the motor electromagnetic loads in reduced dimensions. It is shown that the motor’s quantitative and qualitative characteristics can be improved significantly by using a synchronous salient-pole electric machine in the umbrella design version.

Author Biographies

Maksim A. MARKOV

(JSC “Power machnes”; Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia) – Design Engineer of the Special Design Bureau for the Hydrogenerators Design of the Electrosila Plant; Postgraduate Student

Nikolay V. KOROVKIN

(Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia) –Professor of the Higher School of High Voltage Energy, Dr.Sci. (Eng.), Professor.

Viktor S. TRETIAKOV

(JSC “Power machnes”, St. Petersburg, Russia) – Deputy Chief Designer
of the Special Design Bureau for the Hydrogenerators Design of the Electrosila Plant.

Tat'yana G. MINEVICH

(Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia) – Docent of the Higher School of High Voltage Energy, Cand. Sci. (Eng.)

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Published
2023-09-28
Issue
No 11 (2023): Issue № 11
Section
Article