Optimal design of a high-speed slotless permanent magnet synchronous generator with soft magnetic composite stator yoke and rectifier load
✍ Scribed by Ahmed Chebak; Philippe Viarouge; Jérôme Cros
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 630 KB
- Volume
- 81
- Category
- Article
- ISSN
- 0378-4754
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✦ Synopsis
This paper presents a specific design methodology of a DC generation system using a high-speed slotless generator with surfacemounted magnets and soft magnetic composite (SMC) stator yoke connected to a rectifier. The method is based on an analytical design model of the machine, an electrical model of the machine-rectifier system and a non-linear optimization procedure. The coupling between both models is achieved by a specific correction mechanism during the iterative process that performs an efficient convergence of the optimization procedure. The machine design model is derived from an analytical computation of the twodimensional magnetic field distribution created by the magnets, the armature currents and the stator eddy currents that circulate in the SMC material. It has been cross-validated by 2D finite element analysis. The design approach is applied to the specifications of a 1.5 MW, 18,000 rpm slotless permanent magnet generator with a rated DC output voltage of 1500 V.