Thermal loss of life and load-carrying capacity of marine induction motors

Gnaciński, Piotr

doi:10.1016/j.enconman.2013.11.023

Cited by 32 publications

(44 citation statements)

References 28 publications

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“…For a general case, the permissible value of the cpqs coefficient is 1.13 [13]. For ships with motors with a higher class of insulation than resulting from windings temperature rise (SMHCI), it rises to 1.46 [14], while for ships with motors working with less load than the rated one, cpqs can be even higher [14], [15]. In Fig.…”

Section: H Permissible and Recommended Values Of The Coefficient Of mentioning

confidence: 98%

“…Such a recommendation could be the value of the coefficient of voltage energy efficiency cvee ≤ 1.05. Further, for values cvee greater than 1.05, analysis of the effect of PQ disturbances on heating of induction motors could be recommended, for example with the method presented in [13], [15]. The appropriate curves cvee = 1.05 and cvee = 1.2 are shown in Fig.…”

Section: H Permissible and Recommended Values Of The Coefficient Of mentioning

confidence: 99%

“…It is also worth mentioning that in previous works [13], [14], [15], the authors formulated a proposal for limitation of PQ disturbances to protect induction motors against excessive heating. The proposal is based on a synthetic power quality factor-a temperature coefficient of power quality (cpqs) [15]. For a general case, the permissible value of the cpqs coefficient is 1.13 [13].…”

Section: H Permissible and Recommended Values Of The Coefficient Of mentioning

confidence: 99%

See 2 more Smart Citations

Power Quality and Energy-Efficient Operation of Marine Induction Motors

et al. 2020

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Section: H Permissible and Recommended Values Of The Coefficient Of mentioning

confidence: 98%

Section: H Permissible and Recommended Values Of The Coefficient Of mentioning

confidence: 99%

Section: H Permissible and Recommended Values Of The Coefficient Of mentioning

confidence: 99%

See 1 more Smart Citation

Power Quality and Energy-Efficient Operation of Marine Induction Motors

et al. 2020

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“…In relation to the temperature, the VU results in uneven increases in current, increasing joule losses and thus the operating temperature [32], [33], [35]- [37], [41], [42]. In [43], experimental results show that unbalance with under voltage results in the largest temperature increases.…”

Section: Voltage Unbalance In Induction Motorsmentioning

confidence: 99%

Assessing Voltage Unbalance Conditions in IE2, IE3 and IE4 Classes Induction Motors

et al. 2020

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Brazil has started an energy transition process through more efficient electric motors. The new legislation determining the IE3 Class as the minimum efficiency level in commercial electric motors became valid in August 2019. Currently, four induction motor classes are defined by the IEC 60034-30-1, with the IE4 class being the most efficient, and in the same way, proposals to achieve IE5 efficiency class are available in the market. Considering the upcoming new technologies, it is necessary to know the impact of power systems disturbances in IM's in view of future substitutions. This paper presents a detailed analysis of the impact of different percentages of under and over voltage unbalances on the temperature and performance of electric motors classes IE2, IE3 and IE4. Results show that the IE4 hybrid motor presents non-linear characteristics, being observed this motor shows less dependence on voltage variation, mainly undervoltage unbalance. An analysis of how this phenomenon impacts on the current harmonic distortions in the induction motors operation is also developed through Spearman's correlation matrices. Finally, models that represent the temperature increase of each motor with different voltage unbalance conditions are presented.

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“…Its applications include hybrid electric vehicles, fans, extruders, mills, de-brakers, shredders, compressors, blowers, crushers, cranes,chillers,land and ship applications [11]. Although simple in construction and reliable, the failure rate of induction motor is determined as 3-5 percent per annum.…”

Section: B Induction Motormentioning

confidence: 99%

Review in thermal effects on the performance of electric motors

Ali

Hanif

Ahmed

2016

2016 International Conference on Intelligent Systems Engineering (ICISE)

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Thermal effects play an important role on the performance of electric motors for the applications in traction/propulsion systems. In these type of applications, there is a feedback loop as well as transients are involved. The torque speed characteristics of the electric motors are dependent upon the motor parameters such as armature/rotor resistance, stator resistance etc. The parameters are significantly affected by the temperature because change in temperature is very high in propulsion systems. As a result, the performance of electric motors used in propulsion systems is degraded. In this paper, the thermal effects on electric motors are combined at one place which is not done before. This will be quite helpful for the researchers of this area to study the thermal effects on the performance of electric motors collectively.

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Thermal loss of life and load-carrying capacity of marine induction motors

Cited by 32 publications

References 28 publications

Power Quality and Energy-Efficient Operation of Marine Induction Motors

Power Quality and Energy-Efficient Operation of Marine Induction Motors

Assessing Voltage Unbalance Conditions in IE2, IE3 and IE4 Classes Induction Motors

Review in thermal effects on the performance of electric motors

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