CRITERIA FOR STABLE AND EFFICIENT OPERATION OF PUMPING EQUIPMENT WITH A FREQUENCY CONTROL DRIVE

UDC 628.3(0.75.8)

  • Voitau Ihar Vitalievich – DSc (Engineering), Professor, Rector. Belarusian State Technological University (13а, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: voitov@belstu.by

  • Yalovik Valery Leanidavich – PhD student, the Department of Industrial Ecology. Belarusian State Technological University (13а, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: valery.yalovik@outlook.com

DOI: https://doi.org/10.52065/2520-2669-2021-241-1-197-204

Keywords: energy efficiency, variable frequency drive, water and sewage utilities, pumping unit, well, submersible pump, regulating storege, combined water supply system.

For citation: Voitau I. V., Yalovik V. L. Criteria for stable and efficient operation of pumping equipment with a frequency control drive. Proceedings of BSTU, issue 2, Chemical Engineering, Biotechnologies, Geoecology, 2021, no. 1 (241), pp. 197–204 (In Russian). DOI: https://doi.org/10.52065/2520-2669-2021-241-1-197-204.

Abstract

The results of the development of criteria are presented to ensure the stable operation of pumping equipment with a REB in the entire required range of flows. The analysis of the results of theoretical studies of the operating modes of pumping stations equipped with electronic devices shows that the introduction of a variable drive complicates the process of calculating and selecting pumping equipment, since with a change in the impeller speed, the range of possible pump operating modes expands. This does not exclude the operation of the pump in unacceptable modes outside the working area, even if all conditions were met at the nominal mode. In addition, when selecting variable frequency pumping equipment, it is quite difficult to calculate the amount of energy consumption for the estimated period of operation.

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15.01.2021