Scientific and Technical Journal


ISSN Print 2221-3937
ISSN Online 2221-3805
Experimental research of asynchronous motor of a network pump of heating networks with the capacity of 160 kW was carried out. Electrical circuitry for connection of a network pump during tests and a control circuit are resulted. During the experiment measurements of power consumption, current and power factor were performed. Possible options for managing the engine under real-life conditions are considered. Asynchronous motors with short-circuited rotors are a fairly common element of complex electromechanical and electrical systems thanks to their simplicity and reliability. In the article a comparative analysis of the loading of the asynchronous motor is performed at the control of the choke and frequency converter. It has been determined that when the water consumption is 35 tons per hour, the required active power is 160 kW at a throttle control and 60 kW in frequency control. Thus, frequency control allows you to reduce the required power of the asynchronous motor by about 60%. This reduces the cost of electricity, which in turn entails a reduction in losses. It has been experimentally proved that the use of an adjustable frequency electric drive allows you to save energy by eliminating unproductive energy costs in throttle valves. The use of frequency converters improves the quality of control of the asynchronous motor. In the energy saving mode, the frequency converter automatically tracks current consumption, calculates the load and reduces the output voltage. Managing frequency converters is more cost effective and financially attractive. This conclusion was made after an analysis of the economic calculation. The payback period was less than a year, and the economic effect of the introduction of about 1413 UAH per shift.
DOI 10.15276/eltecs.28.104.2018.06
  1. Chermalyh, V. N., Chermalyh, А. V. Majdanskij I. J. (2011) Identification of the parameters of a physical system frequency-controlled induction motor drive and its simulation model [Identifikacija parametrov fizicheskoj sistemy chastotno-reguliruemogo asinhronnogo jelektroprivoda i ee imitacionnoj modeli], Electrotechnic and computer systems, № 3 (79), p. 35-37
  2. Abrahamsson, Lars,Schütte,Thorsten, Östlund,Stefan (2012) Use of converters for feeding of AC railways for all frequencies,Energy for Sustainable Development,Volume 16, Issue 3, Pages 368-378
  3. Fedyanin, V. V (2017) Impact of the frequency converter on the efficiency factor of the induction motor [vlijanie preobrazovatelja chastoty na kojefficient poleznogo dejstvija asinhronnogo dvigatelja], International research journal, Vol. № 8(62), p. 83-87 DOI:
  4. Malafeev, S. I., Zakharov A. V. (2008) Investigation of losses in an asynchronous motor with frequency control during transient processes [Issledovaniye poter' v asinkhronnom dvigatele c chastotnym regulirovaniyem pri perekhodnykh protsessakh], Russian Electrical Engineering, Vol. №7, p. 2-5
  5. Singh, R. R, Chelliah, T. R. (2017) Enforcement of cost-effective energy conservation on single-fed asynchronous machine using a novel switching strategy, Energy, Volume 126, Pages 179-191
Last download:
22 Jan 2019

[ © KarelWintersky ] [ All articles ] [ All authors ]
[ © Odessa National Polytechnic University, 2014-2018. Any use of information from the site is possible only under the condition that the source link! ]