Efficiency Analysis of Low Electric Power Drives Employing Induction and Synchronous Reluctance Motors in Pump Applications

Vadim Kazakbaev, Vladimir Prakht, Vladimir Dmitrievskii, Mohamed N. Ibrahim, Safarbek Oshurbekov and Sergey Sarapulov
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Vadim Kazakbaev: Department of Electrical Engineering and Electric Technology Systems, Ural Federal University, Yekaterinburg 620002, Russia
Vladimir Prakht: Department of Electrical Engineering and Electric Technology Systems, Ural Federal University, Yekaterinburg 620002, Russia
Vladimir Dmitrievskii: Department of Electrical Engineering and Electric Technology Systems, Ural Federal University, Yekaterinburg 620002, Russia
Mohamed N. Ibrahim: Department of Electrical Energy, Metals, Mechanical Constructions and Systems, Ghent University, 9000 Ghent, Belgium
Safarbek Oshurbekov: Department of Electrical Engineering and Electric Technology Systems, Ural Federal University, Yekaterinburg 620002, Russia
Sergey Sarapulov: Department of Electrical Engineering and Electric Technology Systems, Ural Federal University, Yekaterinburg 620002, Russia

Energies, 2019, vol. 12, issue 6, 1-23

Abstract: Due to the rapid increase in the number of variable speed AC drives, the analysis of their energy efficiency has become highly essential. However, such an analysis requires consideration of a wide variety of factors. This includes considering the energy loss in the frequency converter, depending on the motor type. In this article, a computational comparison of the energy properties of variable frequency pump drive employing two types of electric machines, i.e. an induction and a synchronous reluctance motor, is presented. The effect of the motor type on the losses in a low-voltage two-stage frequency converter using analytical and numerical models, with a further comparison, is investigated. Furthermore, an alternative approach to determine the current magnitude and power factor of the load of the converter is suggested. Eventually, this study provides a quantitative estimate of the increase in losses in the converter caused by using the two different motor types. Several experimental tests are conducted on induction and synchronous 1.1 kW reluctance motors.

Keywords: analytical models; efficiency; induction motor drive; losses; numerical models; synchronous reluctance motor drive (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View complete reference list from CitEc
Citations: View citations in EconPapers (7)

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