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Unbalanced magnetic pull due to simultaneous existence of static and dynamic eccentricities and uneven magnetization in permanent magnet motors
- Issue Date
- Jul-2016
- Publisher
- Institute of Electrical and Electronics Engineers Inc.
- Keywords
- dynamic eccentricity; static eccentricity; unbalanced magnetic pull; uneven magnetization
- Citation
- 2016 Asia-Pacific Magnetic Recording Conference, APMRC 2016, pp 1 - 2
- Pages
- 2
- Indexed
- SCOPUS
- Journal Title
- 2016 Asia-Pacific Magnetic Recording Conference, APMRC 2016
- Start Page
- 1
- End Page
- 2
- Abstract
- We mathematically and numerically investigate the characteristics of unbalanced magnetic pull (UMP) in a permanent magnet (PM) motor due to simultaneous existence of static and dynamic eccentricities and uneven magnetization of PM. We mathematically show that pole number ±1 and pole number±2 harmonic components of UMP are generated due to static eccentricity with uneven magnetization and that pole number±m harmonic components of UMP are generated due to static eccentricity with dynamic eccentricity. Finite element analysis is conducted to verify the mathematical equations.
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