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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Schmitt, S. |
| Copyright Year | 2009 |
| Description | Author affiliation: BLOCK Transformatoren-Elektronik GmbH & Co. KG, Max-Planck-Str. 36-46, Verden, Germany (Schmitt, S.) |
| Abstract | Electrical steel inductors are superior in size and cost compared o inductors using alternative core like nanocrystalline or powder materials in applications involving pulse-width modulated currents. However, electrical steel tends to emit more acoustic noise, which can be undesirable. The causes for these acoustic noise emissions, i.e. magnetic forces and magnetostriction, are explained in detail and the particular flux density distribution in sheeted electrical steel inductors a PWM operating is derived. Based on these insights, two methods of reducing the noise of an electrical steel inductor are proposed. One method implies a redesign of the inductor for lower nominal flux density. The other method is based on changing only the mechanical construction of the inductor. It does not affect the main design parameters of an inductor, i.e. inductance and temperature rise, and can thus be applied to existing inductor designs. |
| Starting Page | 1 |
| Ending Page | 8 |
| File Size | 1816556 |
| Page Count | 8 |
| File Format | |
| ISBN | 9781424444328 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2009-09-08 |
| Publisher Place | Spain |
| Access Restriction | Subscribed |
| Subject Keyword | Passive component Costs Powders Pulse Width Modulation (PWM) Acoustic noise Magnetic cores Building materials Pulse width modulation Magnetic materials Steel Inductors Nanostructured materials |
| Content Type | Text |
| Resource Type | Article |
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