Einfluss des Umrichterbetriebs auf das akustische Verhalten im Gesamtsystem Asynchronmotor-Getriebe

Haaf, Derrick; Gold, Peter Werner (Thesis advisor)

1. Aufl.. - Aachen : Mainz (2004)
Dissertation / PhD Thesis

Page(s)/Article-Nr.: VI, 117 S. : Ill., graph. Darst.

Zugl.: Aachen, Techn. Hochsch., Diss., 2004


In the industrial work environment noise levels and exposition times are by law subject to rules and regulations. Additionally customer expectation with respect to the noise performance of consumer products creates high customer expectation concerning the noise performance of products used in industrial or publicly accessible installations or machines. With expectations increasing engineers are forced to face the phenomena that developed and optimized components create unwanted or unforeseen noise on a system level in an assembly. Converter fed geared induction motor units can be operated over a wide speed range. Unfavorable acoustic behavior may become apparent and prevent the application of a geared motor unit that was optimized to run with a fixed frequency power supply. Content of the presented thesis is the measurement and simulation of the converter's influence on the acoustic behavior of the geared induction motor unit. Baseline measurements show a comparison of the system's behavior within a wide range of speed and load and with different converter control strategies and pulse frequencies. Points of operation with unfavorable acoustic performance are investigated with in depth measurements and by simulation. The Measurement and simulation provide insight into the contributors and the origin of the system's noise level. These results provide the grounds for noise reduction of geared induction motor units