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All Journal International Journal of Electrical and Computer Engineering International Journal of Power Electronics and Drive Systems (IJPEDS)
Vladimir Sousa Santos
Universidad de la Costa
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering

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A universal model of three-phase asynchronous motors for electrical power system analysis Laura Collazo Solar; Ángel A. Costa Montiel; Miriam Vilaragut Llanes; Vladimir Sousa Santos; Carlos de la Incera Núñez
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 14, No 1: March 2023
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v14.i1.pp167-173

Abstract

The high incidence of three-phase asynchronous motors (TAM) in global energy consumption and its influence on the operation of electrical systems makes it necessary to develop models that allow their analysis effectively. Based on this, this paper presents a universal model of TAM based on the relationship between the active and reactive power of the TAM and the deviation of voltage and frequency. It can be applied to any general-purpose TAM and is very useful when representing these motors in electrical power system studies. The model parameters were obtained from a statistical analysis performed on 70 TAM of different classifications. The results are validated by comparing them with those obtained from the solution of the equivalent circuit, demonstrating its validity by less than 6% errors.
Induction motors with copper rotor: a new opportunity for increasing motor efficiency Percy R. Viego Felipe; Vladimir Sousa Santos; Julio R. Gómez Sarduy; José P. Monteagudo Yanes; Enrique Ciro Quispe
International Journal of Electrical and Computer Engineering (IJECE) Vol 13, No 3: June 2023
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v13i3.pp2409-2418

Abstract

The copper rotor induction motor (CURIM) was recently introduced because it has lower rotor fusion losses than the aluminum rotor (ALRIM). Furthermore, with CURIM, it is easier to reach IE4 and IE5 efficiency levels. The CURIM is advantageous for compact motors, escalators, and electric vehicle applications. However, CURIMs present slip, power factor, temperature increase, and torque decrease problems that must be analyzed. This study compared the economic feasibility of using CURIM with ALRIM by applying discount techniques. A case study was carried out in a sugar company with a cyclical operation, where 5.5 kW motors will be installed in the intermediate conductors of the mill's feeders. The facility works three shifts between 3 and 6 months. The cost increase (DCI) of CURIM over ALRIM was between 1.1 and 1.5 times. With 3,600 h/year and 4,000 h/year of operation, the DCI greater than 10%, it was found that the payback is more than four years, and the net present value (NPV) grows linearly.
Co-Authors Ángel A. Costa Montiel Carlos de la Incera Núñez Enrique Ciro Quispe José P. Monteagudo Yanes Julio R. Gómez Sarduy Laura Collazo Solar Miriam Vilaragut Llanes Percy R. Viego Felipe