Designing an Energy-Saving Induction Motor Operating in a Wide Frequency Range

Dems, M.; Komęza, Krzysztof

doi:10.1109/tie.2021.3082057

Cited by 13 publications

(8 citation statements)

References 45 publications

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“…Improvements in the design were also developed with a focus on the magnetic core of the machine. For example, in [18], there is a report of high efficiency achieved even at frequencies lower than the rated one. The improvement was implemented through appropriate analytical modeling and changes in the used materials and in the design of the magnetic cores for the magnetic circuits.…”

Section: Increasing the Energy Efficiency Of Induction Motor Drivesmentioning

confidence: 99%

Energy Efficiency of Induction Motor Drives: State of the Art, Analysis and Recommendations

Dinolova,

Ruseva,

Dinolov

2023

Energies

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Despite activities to introduce low-carbon energy sources worldwide, the share of conventional facilities burning organic fuels remains high. One approach to address this problem is to look for solutions to reduce energy consumption. There are various research projects in the area of energy efficiency that lead to diverse results—such as models, methodologies, new data and theories. On the other hand, induction motor drives are becoming a major consumer of electric power because of their wide range of applications. In this paper, after careful selection and systematization of 151 literature sources, an extensive study and criteria analysis of the existing state of affairs in the area of energy efficiency improvement of induction motor drives has been carried out. Five major and 48 minor research areas in this field have been identified. The results show that issues related to the adaptation of scientific results and the conditions for their effective and wide-ranging application in practice have not been discussed and investigated so far. Adaptation should take into account the possibilities of data acquisition, including data from measurements; the competences of energy managers; and the type of information provided to them. Based on the seven conclusions formulated below, summary recommendations are made to direct future research towards the justification of models for increasing the power efficiency of induction drives, adapted for use by energy managers.

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Section: Increasing the Energy Efficiency Of Induction Motor Drivesmentioning

confidence: 99%

Energy Efficiency of Induction Motor Drives: State of the Art, Analysis and Recommendations

Dinolova,

Ruseva,

Dinolov

2023

Energies

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“…The calculation of errors of the current transformer at load, as required by the standard [1,2], was performed using the 3D field-circuit method, which enables the calculation of the currents induced in the secondary circuit (similar to articles [23][24][25][26][27][28][29]).…”

Section: Mathematical Model Of the Current Transformermentioning

confidence: 99%

“…Moreover, in the case of the accidental opening of the secondary terminals of the current transformer, a very high voltage would be induced in the secondary winding [19,20]. With the use of numerical methods [21][22][23][24][25][26][27][28] and space-time analysis of 3D electromagnetic fields, it is possible to check the operation of a short-circuit current transformer during short circuits before testing a prototype at the design change, i.e., the currents at an asymmetrical short circuit [29][30][31][32].…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Operation of Cascade Current Transformers for Measurements of Short-Circuit Currents with a Non-Periodic Component with a Large Time Constant of Its Decay

Leśniewska

Olak

2022

Energies

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Simulations of emergency states and tests of resistance of electrical devices to emergencies are performed in specialized high-power laboratories, the so-called short-circuit laboratories. For most electrical power devices, such measurements are required by international standards. The basic equipment of short-circuit testing laboratories consists of current transformers for measuring short-circuit currents. These transformers should not only enable the accurate conversion of sinusoidal currents—which is typical for conventional current transformers, but also asymmetrical short-circuit currents containing an aperiodic component, which classic current transformers cannot reproduce. Therefore, manufacturers and designers try to meet the market demands and design these special class 0.2 current transformers. To meet the high technical requirements, the field-circuit method with three-dimensional space–time analysis of electromagnetic fields was used during design, considering physical phenomena in ferromagnetic cores (i.e., hysteresis and eddy current losses) and the load of the secondary winding of the current transformer by the measurement system. The article presents simulations of secondary currents for the short-circuit current transformer model, and the results were confirmed by measurements and oscillograms of the currents flowing in the windings of the real model. The prototype of the designed short-circuit transformer meets the IEC/EN standard requirements. When measuring harmonic currents, the transformation errors meet the requirements of class 0.2. During the short-circuit current waveforms, the maximum instantaneous peak error does not exceed 1% of the error for all the subsequent maxima of the current waveform during the specified transient switching cycle. In comparison, the standard allows this error to be 10%.

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“…In [4], optimal design of an IM was presented where a measured efficiency up to 95% could be achieved. An IM design technique for energy-saving operation over wide frequency range was introduced in [5]. Design and development of an SRM for hybrid electric vehicles with a maximum 95% efficiency is reported in [6].…”

Section: Introductionmentioning

confidence: 99%

Design, Analysis and Experimental Evaluation of a Novel High-Speed High-Power Ferrite IPM Machine for Traction Applications

Hoang,

Yu,

Ullah

et al. 2024

IEEE Trans. on Ind. Applicat.

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Designing an Energy-Saving Induction Motor Operating in a Wide Frequency Range

Cited by 13 publications

References 45 publications

Energy Efficiency of Induction Motor Drives: State of the Art, Analysis and Recommendations

Energy Efficiency of Induction Motor Drives: State of the Art, Analysis and Recommendations

Analysis of the Operation of Cascade Current Transformers for Measurements of Short-Circuit Currents with a Non-Periodic Component with a Large Time Constant of Its Decay

Design, Analysis and Experimental Evaluation of a Novel High-Speed High-Power Ferrite IPM Machine for Traction Applications

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