Exact Analytical Magnetic Field Analysis and Optimization Design of an Eccentric Magnetic Harmonic Gear
- Resource Type
- Conference
- Authors
- Liu, Ronghui; Wang, Lekai; Zhang, Junda; Lin, Shunfu; Muyeen, S. M.; Chen, Teng
- Source
- 2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES) Smart Power & Internet Energy Systems (SPIES), 2021 3rd International Conference on. :333-336 Sep, 2021
- Subject
- Power, Energy and Industry Applications
Analytical models
Torque
Gears
Air gaps
Rotors
Harmonic analysis
Magnetic analysis
eccentric magnetic harmonic gear
exact analytical model
air gap magnetic field
hyperbolic cotangent transformation
electromagnetic torque
genetic algorithm
- Language
The eccentric magnetic harmonic gear (EMHG) can achieve large torque transmission, high efficiency with high gear ratios. Exact analytical model is proposed to calculate the air gap magnetic field. The analytical method is based on the hyperbolic cotangent transformation method, which is accurate in theory. The eccentric air gap magnetic field solutions can be obtained by the relative permeance function derived from the effect of rotor eccentricity. The genetic algorithm based on the proposed analytical method is used to optimize and design the EMHG. The analytical results are in good agreement with Ansoft finite element (FE) method results, which verifies the correctness and validity of the proposed analytical model.