Methodology for Asynchronous Motor Impedance Measurement by Using Higher Order Harmonics

Karolis Dambrauskas, Jonas Vanagas, Saulius Bugenis, Tomas Zimnickas and Artūras Kalvaitis
Additional contact information
Karolis Dambrauskas: Department of Power Systems, Kaunas University of Technology, 44249 Kaunas, Lithuania
Jonas Vanagas: Department of Power Systems, Kaunas University of Technology, 44249 Kaunas, Lithuania
Saulius Bugenis: Department of Power Systems, Kaunas University of Technology, 44249 Kaunas, Lithuania
Tomas Zimnickas: Department of Power Systems, Kaunas University of Technology, 44249 Kaunas, Lithuania
Artūras Kalvaitis: Department of Power Systems, Kaunas University of Technology, 44249 Kaunas, Lithuania

Energies, 2020, vol. 13, issue 10, 1-13

Abstract: The control methods of asynchronous motors have changed during past decades. In the past, asynchronous motors were connected to grid directly. Later, thyristors as switching element-based frequency converters for asynchronous motors have appeared. Today, asynchronous motors are controlled with variable speed drives that are frequency converters consisting of IGBT power modules as switching elements that form the output voltage for asynchronous motors. Because of IGBT’s high switching speed of around few kilohertz, higher order harmonics appear in the output voltage. Their influence was not analyzed in the past as the methodology of asynchronous motor winding resistance measurement was under development. In this article, a new methodology of motor resistance measurement for mass production is introduced. The resistance—compared to higher order harmonics values between the windings of benchmark and tested motors—gives an ability to faster and more accurately determine a motor’s characteristics and losses induced by higher order harmonics that appear when a motor is powered by a variable speed drive. Motor winding’s inductance dependency on the current of magnetic biasing and the higher frequency of voltage is analyzed in this article. In addition, the simulation model of resistance to higher order harmonics of motor measurement is introduced and analyzed in this article.

Keywords: magnetic biasing; magnetic flux; winding; higher order harmonics; inductance; idling; suspended rotor; motor resistance (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: 2020
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/13/10/2541/pdf (application/pdf)
https://www.mdpi.com/1996-1073/13/10/2541/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:13:y:2020:i:10:p:2541-:d:359220

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().