Calculating frequency responses of synchronous machines using MIMO transfer functions

Research output: Chapter in book/report/conference proceedingConference contributionResearchpeer review

Authors

  • Matthias Björn Kalla
  • Olga Korolova
  • Alexander Neufeld
  • Lutz Hofmann
  • Bernd Ponick
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Details

Original languageEnglish
Title of host publication2019 International Aegean Conference on Electrical Machines and Power Electronics, ACEMP 2019 and 2019 International Conference on Optimization of Electrical and Electronic Equipment, OPTIM 2019
Subtitle of host publicationProceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages132-138
Number of pages7
ISBN (electronic)978-1-5386-7687-5
ISBN (print)978-1-5386-7688-2
Publication statusPublished - 1 Aug 2019
Event2019 International Aegean Conference on Electrical Machines and Power Electronics, ACEMP 2019 and 2019 International Conference on Optimization of Electrical and Electronic Equipment, OPTIM 2019 - Istanbul, Turkey
Duration: 27 Aug 201929 Aug 2019

Publication series

NameProceedings of the International Conference on Optimisation of Electrical and Electronic Equipment
ISSN (Print)1842-0133
ISSN (electronic)2643-3958

Abstract

This paper addresses the issue of synchronous machines performing at an operating point with small oscillations of the supply voltage. When the stator voltage spectrum consists of more than one frequency component, the electrical machine has a response with this distorting frequency. To calculate the behaviour of the machine, a Multiple Input Multiple Output (MIMO) transfer function is proposed, which also considers oscillations of the torque and the field winding voltage for electrically excited synchronous machines. With this transfer function, possible resonance effects can be studied. This is suitable for harmonic studies in power grids, where a frequency-dependent model of electrical generators is needed. In addition, oscillations of the torque are analysed and a link to the complex torque coefficient is discussed.

Keywords

    frequency response, MIMO communication, power grids, rotors, stators, synchronous machines, torque, transfer functions, supply voltage, stator voltage spectrum, frequency component, electrical machine, electrically excited synchronous machines, frequency-dependent model, electrical generators, frequency responses, MIMO transfer functions, multiple input multiple output transfer function, torque oscillations, field winding voltage, Mathematical model, Generators, Transfer functions, Oscillators, Stator windings, linearisation, resonances

ASJC Scopus subject areas

Cite this

Calculating frequency responses of synchronous machines using MIMO transfer functions. / Kalla, Matthias Björn; Korolova, Olga; Neufeld, Alexander et al.
2019 International Aegean Conference on Electrical Machines and Power Electronics, ACEMP 2019 and 2019 International Conference on Optimization of Electrical and Electronic Equipment, OPTIM 2019: Proceedings. Institute of Electrical and Electronics Engineers Inc., 2019. p. 132-138 (Proceedings of the International Conference on Optimisation of Electrical and Electronic Equipment).

Research output: Chapter in book/report/conference proceedingConference contributionResearchpeer review

Kalla, MB, Korolova, O, Neufeld, A, Hofmann, L & Ponick, B 2019, Calculating frequency responses of synchronous machines using MIMO transfer functions. in 2019 International Aegean Conference on Electrical Machines and Power Electronics, ACEMP 2019 and 2019 International Conference on Optimization of Electrical and Electronic Equipment, OPTIM 2019: Proceedings. Proceedings of the International Conference on Optimisation of Electrical and Electronic Equipment, Institute of Electrical and Electronics Engineers Inc., pp. 132-138, 2019 International Aegean Conference on Electrical Machines and Power Electronics, ACEMP 2019 and 2019 International Conference on Optimization of Electrical and Electronic Equipment, OPTIM 2019, Istanbul, Turkey, 27 Aug 2019. https://doi.org/10.1109/acemp-optim44294.2019.9007207
Kalla, M. B., Korolova, O., Neufeld, A., Hofmann, L., & Ponick, B. (2019). Calculating frequency responses of synchronous machines using MIMO transfer functions. In 2019 International Aegean Conference on Electrical Machines and Power Electronics, ACEMP 2019 and 2019 International Conference on Optimization of Electrical and Electronic Equipment, OPTIM 2019: Proceedings (pp. 132-138). (Proceedings of the International Conference on Optimisation of Electrical and Electronic Equipment). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/acemp-optim44294.2019.9007207
Kalla MB, Korolova O, Neufeld A, Hofmann L, Ponick B. Calculating frequency responses of synchronous machines using MIMO transfer functions. In 2019 International Aegean Conference on Electrical Machines and Power Electronics, ACEMP 2019 and 2019 International Conference on Optimization of Electrical and Electronic Equipment, OPTIM 2019: Proceedings. Institute of Electrical and Electronics Engineers Inc. 2019. p. 132-138. (Proceedings of the International Conference on Optimisation of Electrical and Electronic Equipment). doi: 10.1109/acemp-optim44294.2019.9007207
Kalla, Matthias Björn ; Korolova, Olga ; Neufeld, Alexander et al. / Calculating frequency responses of synchronous machines using MIMO transfer functions. 2019 International Aegean Conference on Electrical Machines and Power Electronics, ACEMP 2019 and 2019 International Conference on Optimization of Electrical and Electronic Equipment, OPTIM 2019: Proceedings. Institute of Electrical and Electronics Engineers Inc., 2019. pp. 132-138 (Proceedings of the International Conference on Optimisation of Electrical and Electronic Equipment).
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AU - Hofmann, Lutz

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N2 - This paper addresses the issue of synchronous machines performing at an operating point with small oscillations of the supply voltage. When the stator voltage spectrum consists of more than one frequency component, the electrical machine has a response with this distorting frequency. To calculate the behaviour of the machine, a Multiple Input Multiple Output (MIMO) transfer function is proposed, which also considers oscillations of the torque and the field winding voltage for electrically excited synchronous machines. With this transfer function, possible resonance effects can be studied. This is suitable for harmonic studies in power grids, where a frequency-dependent model of electrical generators is needed. In addition, oscillations of the torque are analysed and a link to the complex torque coefficient is discussed.

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