Electrical–mechanical evaluation of the multi–cascaded induction motors under different conditions

Jingquan Guo, Xinqiang Ma and Ali Ahmadpour

Energy, 2021, vol. 229, issue C

Abstract: This article pays particular attention on the operation and process of energy conversion in cascaded induction motors worked under balance and unbalance circumstances. In this study, we considered the multi induction motors, which are coupled as mechanically in form of cascade mode with the same capacity. Moreover, a Single Induction Motor (SIM), which its capacity is sum of the capacity of all Multi–Cascaded Induction Motors (MCIMs), are considered for comparing the results. In operation time, unbalancing can be happen in the individual of the given voltage and frequency. The effects of the balance voltage and unbalanced frequency on highest and stable torque, power factor, active as well as reactive input powers, ohm losses, and finally, Total Harmonic Distortion (THD) in current and voltage have been examined. This study shows that motor operation and effectiveness are enhanced by presenting more electrical benefits of the MCIMs. The results depicts the highest torque of MCIMs in comparison with SIMs. In addition, the copper loss is decreased when the MCIM is used instead of SIM. As a result, the energy conversion procedure were remarkably enhanced.

Keywords: Multi–cascaded induction motors; Unbalanced frequency; Energy conversion; Torque analysis; Total harmonic distortion (search for similar items in EconPapers)
Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:229:y:2021:i:c:s0360544221009130

DOI: 10.1016/j.energy.2021.120664

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