Estimation of the Excitation Current and the Rotor Resistance of an Externally Excited Synchronous Machine with an Inductively Supplied Excitation Coil
Conference: PCIM Europe 2016 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
05/10/2016 - 05/12/2016 at Nürnberg, Deutschland
Proceedings: PCIM Europe 2016
Pages: 8Language: englishTyp: PDF
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Authors:
Koehler, Stefan; Wagner, Bernhard (TH Nürnberg GSO, Germany)
Endres, Stefan (Fraunhofer IISB, Germany)
Abstract:
A nonlinear observer for an externally excited synchronous machine (EESM) with an inductively supplied excitation coil is presented, which estimates the excitation current and the rotor resistance. This observer is designed with the direct method of Lyapunov. Using the developed estimation algorithm a precision of over 96 % can be achieved.