Adapted Morlet wavelet analysis for the rotation speed determination by series-wound motors

• Autorzy: Wostenkuhler G.W. , Liu S. , Tingying L.
• Języki publikacji: EN

Abstrakty

EN

Series-wound motors are widely used and they are produced in large quantities. To guarantee the quality of the motors, each motor has to be tested. The test of such a motor needs information of the rotational speed of its rotor during the test sequence. An external rotational speed sensor increases the handling time and cannot be applied to all types of motors. The rotational speed can be determined with a frequency estimation method based on the easy to measure electrical current signal at the connector. This contribution describes the adapted Morlet wavelet analysis and its application for frequency estimation. In contrast to the Fourier transform, possible frequency values of this method are not dependent on the length of the time window.

Słowa kluczowe

EN

adapted Morlet wavelet analysis; rotation speed determination; series-wound motors; motor test sequence; frequency estimation method; electrical current signal; small size motors; automatically produced motors; model-based approach; convolution; discontinuous function

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Systems Science
• Rocznik: 2002
• Tom: Vol. 28, nr 3
• Strony: 85--93
• Opis fizyczny: Bibliogr. 12 poz.

Twórcy

autor

Wostenkuhler G.W.

• Hochschule Harz (University of Applied Studies and Research), Faculty of Automation and Informations, Friedrichstrasse 57-59, D-388855, Wernigerode, Germany

autor

Liu S.

• Hochschule Harz (University of Applied Studies and Research), Faculty of Automation and Informations, Friedrichstrasse 57-59, D-388855, Wernigerode, Germany

autor

Tingying L.

• Hochschule Harz (University of Applied Studies and Research), Faculty of Automation and Informations, Friedrichstrasse 57-59, D-388855, Wernigerode, Germany