Speed Estimation of DFIM by Using Frequency Analysis of Stator Current
Conference: PCIM Europe 2014 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
05/20/2014 - 05/22/2014 at Nürnberg, Deutschland
Proceedings: PCIM Europe 2014
Pages: 6Language: englishTyp: PDFPersonal VDE Members are entitled to a 10% discount on this title
Fang, J.; Staudt, V.; Steimel, A. (Ruhr-University Bochum, Germany)
Speed-sensorless operation of machines eliminates the need for a sensor, reducing cost and enhancing reliability. For speed identification schemes based on linear models of the machine various concepts are known. In case of doubly-fed induction machines challenges result from the slotting of the stator as well as of the rotor, leading to harmonics of the respective currents at quasi-sinusoidal voltages. Including slotting and the resulting current harmonics into the model allows for speed identification.