Generator with modulated magnetic flux for wind turbines

• Autorzy: Gwóźdź M. , Krystkowiak M. , Jędryczka C. , Gulczyński A. , Matecki D.

Identyfikatory

DOI

10.1515/bpasts-2017-0052

• Języki publikacji: EN

Abstrakty

EN

In the paper, the concept of a permanent magnet synchronous generator (PMSG) with uniquely designed stator windings for wind turbines is presented. Two 3-phase windings in the stator are used, one of which is connected in the star, while the other in the delta configuration. Six-pulse rectifiers, mutually coupled by the pulse transformer, whose primary winding is supplied by the so-called “current modulator”, are placed at the outputs of both windings. The modulator output current should meet all the necessary and strict requirements. Both rectifiers operate on a common DC circuit. These solutions provide the sinusoidal magnetomotive force in the stator of the PMSG and the quasi-sinusoidal (taking into account the non-linearity of the magnetic circuit) magnetic flux. In light of the generator principle, it has been called the “PMSG with modulated the magnetic flux”. The slightly higher complexity in the structure of the generator, as compared to the normal three-phase construction, is compensated by the exceptional simplicity of the power electronics section of the system, which allows high efficiency to be reached. The current modulator (as well as the pulse transformer) is a power electronics converter with a relatively low output power as compared to the overall output power of the system. In comparison to other known solutions, the expected cost of the system should be lower. It is also expected that a high degree of reliability in terms of its operation will be achieved, and consequently, that the the ongoing costs of its maintenance will be reduced. In the paper, concept, theoretical basis of operation, and results of the studies of the simulation models of the generator, including the basic power electronics section, are presented.

Słowa kluczowe

EN

current modulator; PMSG; power electronics converter; renewable energy source; wind turbine

PL

modulator; PMSG; konwerter elektroniki; odnawialne źródła energii; turbina wiatrowa

• Wydawca: Polska Akademia Nauk, Wydział IV Nauk Technicznych
• Czasopismo: Bulletin of the Polish Academy of Sciences. Technical Sciences
• Rocznik: 2017
• Tom: Vol. 65, nr 4
• Strony: 469--478
• Opis fizyczny: Bibliogr. 41 poz., rys., wykr., tab.

Twórcy

autor

Gwóźdź M.

• Institute of Electrical Engineering and Electronics, Poznań University of Technology, 3A Piotrowo St., 60-965 Poznań, Poland

autor

Krystkowiak M.

• Institute of Electrical Engineering and Electronics, Poznań University of Technology, 3A Piotrowo St., 60-965 Poznań, Poland

autor

Jędryczka C.

• Institute of Electrical Engineering and Electronics, Poznań University of Technology, 3A Piotrowo St., 60-965 Poznań, Poland

autor

Gulczyński A.

• Institute of Electrical Engineering and Electronics, Poznań University of Technology, 3A Piotrowo St., 60-965 Poznań, Poland

autor

Matecki D.

• Institute of Electrical Engineering and Electronics, Poznań University of Technology, 3A Piotrowo St., 60-965 Poznań, Poland

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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).