Français
4. Silent design rules
To reduce the magnetic noise radiated by the machine from the design phase onwards, three main approaches are possible:
act on the amplitude of the excitation alone (weak tooth lines, weak MLI lines, high spatial orders, etc.);
act on the amplitude of the response alone (low radiation from the structure) ;
act on the interaction between the exciting force and the excited structure (distance between exciting frequencies and natural frequencies).
The design parameters with the greatest influence on noise are the number and shape of slots, general motor dimensions (outside diameter, yoke height, iron length, air gap)
The Ultimate Scientific and Technical Reference
This article is included in
Conversion of electrical energy
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Silent design rules
Experimental characterization and diagnosis of magnetic noise
Bibliography
Bibliography
Standards and norms
- Electric drive – Rotating electrical machines for rail and road vehicles – Part 2: AC motors powered by electronic converters - CEI 60349-2 - 2010
- Machines électriques tournantes. Partie 9 : Limites de bruits - CEI 60034-9 - 2007
- Rotating electrical machines. Part 14: Mechanical vibration of certain machines with shaft heights greater than or equal to 56 mm. – Vibration measurement, assessment and limits...
Patents
Process for the electrolytic oxidation of cerium and electrolysis unit for its implementation CA2582058
The Ultimate Scientific and Technical Reference
