DEVELOPMENT OF MEASURES TO INCREASE THE TECHNICAL LIFE OF ELECTRICAL EQUIPMENT OF POWERFUL PUMPING STATIONS

Authors

 

Dadabaev Sh.T.Senior lecture, the Department of Power Supply and Automation, Polytechnic Institute of Tajik Technical University, Khujand, Republic of Tajikistan, shahbozdadoboev@mail.ru

 

Annotation

 

   The main purpose of the study is to develop measures to increase the technical life of the electrical equipment of a high-power irrigation pumping station based on the use of soft start systems for high-voltage electric motors. methods of analysis of technological processes of pumping stations, methods of mathematical and computer modeling of electric drive systems were used. Computer models have been developed to study the operating characteristics of asynchronous and synchronous electric drives of pumping stations with direct and soft start of electric motors. A shockless start-up system for high-voltage electric motors of irrigation pumping stations of the first lift based on a current inverter is proposed. The reliability and durability of the operation of electrical equipment depends, first of all, on the technical resource, which is determined by a number of factors. The main factors affecting the technical life of the electrical equipment of large irrigation pumping stations are transient modes that occur when pumping units are started. The soft start system of high-voltage electric motors of irrigation pumping stations proposed in this article makes it possible to eliminate the negative impact of transient modes on the operation of electrical equipment and, thereby, increase the technical life and reliability of the power supply system of the pumping station as a whole.

 

Key words

 

 pumping station, pumping unit, electric drive, asynchronous motor, synchronous motor, current inverter, technical resource

 

References

 

  1. Vohidov A.D., Dadabaev Sh.T., Razokov F.M. To the question of the tasks of improving the reliability of the power supply system of the pumping station of the first lift. Reliability. 2016. V. 16. No. 4 (59). pp. 36-39.
  2. Dadabaev Sh.T. Computer simulation of a current inverter used to start high-voltage electric motors. News of the Tula State University. Technical science. 2019. No. 2. S. 370-375.
  3. Dadabaev Sh.T. Simulation of starting modes of a high-voltage synchronous electric drive with a soft starter. In the collection: CAD and modeling in modern electronics. Collection of scientific papers of the I International Scientific and Practical Conference. Ed. L.A. Potapova, A.Yu. Drakina. 2017. S. 91-94.
  4. Dadabaev Sh.T. Study of starting transient processes of a high-voltage synchronous electric drive, taking into account heating and hot climate. Energy systems. 2017. No. 1. S. 179-184.
  5. Dadabaev Sh.T., Gracheva E.I. Feasibility study for the use of a soft start system for high-voltage electric motors of pumping units. News of higher educational institutions. Energy problems. 2022. V. 24. No. 1. S. 141-150.
  6. Kalinin, A.G. Research and development of energy-efficient modes of electric drives in power supply systems. Dissertation for the degree of candidate of technical sciences. Cheboksary 2011.
  7. Larionov V.N., Kalinin A.G. Energy efficiency and energy saving in electric drives with fan load. – Cheboksary: Publishing house. Univ., 2012. – 146 p.
  8. Leznov B.S. Energy saving and variable drive in pump and blower installations. – M.: Energoatomizdat, 2006. 360 p. ill.
  9. Neiman Z.B. and others. Large vertical alternating current electric motors. – M.: Energy, 1974. 375 p. ill.
  10. Onishchenko G.B., Yunkov M.G. Electric drive of turbomechanisms. – M.: Energy, 1972. 240 p. ill.
  11. Tolibjonovich, D.S., Islomovna, T.M., Saidulloevna, M.D. (2020). Modeling of starting transition processes of asynchronous motors with reduced voltage of the supply network. European Journal of Electrical Engineering, Vol. 22, no. 1, pp. 23-28. https://doi.org/10.18280/ejee.220103

 

Publication date

2023-10-30