Identyfikatory
Warianty tytułu
The flux and power oscillation damping in doubly fed machine
Konferencja
Problemy eksploatacji maszyn i napędów elektrycznych (2005; Ustroń, Polska)
Języki publikacji
Abstrakty
The doubly fed machine (DFM) is useful as a generator in wind power plants and hydro-electric power stations, as well as a shaft generator on ships. However, small oscillations occur in almost each system with DFM independently of supply way if intermediate variables have been changed rapidly. The stator flux vector components form an oscillating system. Oscillations are very weak damped and may be transformed into transients of power. These ones can affect a work of other power sources and loads connected together with DFM to the same grid. The mentioned problem appeared in the literature sources several times. The effective damping methods consist in application of inverse feedbacks to correct properties of control systems with DFM. The former structure proposed by author includes the damping feedback with signals obtained from relationships of induction machine's mathematical model. This solution cannot be applied in practice due to big distortion of signals existing in damping feedback. Asymmetries of machine and inverter as well as non-linear characteristic of machine magnetic circuit are the most probable reasons of this distortion. The oscillations may be damped in the DFM control system if the feedback contains signals obtained by filtration of DFM's active and reactive power with the aid of band-pass filter applied for each component of the power. The structure of such system and investigation results are presented in the paper.
Czasopismo
Rocznik
Tom
Strony
39--43
Opis fizyczny
Bibliogr. 5 poz., rys.
Twórcy
autor
- Politechnika Częstochowska, Częstochowa
Bibliografia
- [1]. Popenda A.: Analiza i badanie bezczujnikowego układu sterowania pracą prądnicową maszyny dwustronnie zasilanej. Miesięcznik Gospodarka Paliwami i Energią” nr 9-10/2004, Oficyna Wyd. Energia, s. 24-27
- [2]. Krzemiński Z., Popenda A., Ladach P., Melcer M.: Sensorless control system of double fed induction machine with predictive current controller. Proceedings of Int. Conf. EPE 2001, Graz – Austria (on CD-ROM)
- [3]. Krzemiński Z.: Cyfrowe sterowanie maszynami asynchronicznymi. PAN, Komitet Elektrotechniki, Wydawnictwo Politechniki Gdańskiej 2001
- [4]. Popenda A.: Stany nieustalone i stabilność wybranych układów sterowania maszyny asynchronicznej dwustronnie zasilanej. Rozprawa doktorska, Politechnika Gdańska 1999
- [5]. Popenda A.: Pętla synchronizacji fazowej nie tylko w radiotechnice. Konferencja „Modelowanie i Symulacja MiS”. Zakopane – Kościelisko, 2000.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPS2-0033-0037