Design of a 3MW Class Outer Rotor Type PMSG for Wind Turbine
- 발행기관 포항공과대학교 풍력대학원
- 지도교수 박현철
- 발행년도 2011
- 학위수여년월 2011. 2
- 학위명 석사
- 학과 및 전공 일반대학원 풍력대학원
- 실제URI http://www.dcollection.net/handler/postech/000000900734
- 본문언어 한국어
- 저작권 포항공과대학교 논문은 저작권에 의해 보호받습니다.
초록/요약
Direct drive permanent magnet synchronous generator (PMSG) is a becoming popular in the wind power industry for its inherent reliability and higher annual energy yield. In this study, 3MW class outer rotor type PMSG for wind turbine is designed. The generator features 2.6m stator outer radius, 1200mm stator length, 81 pole pairs, 14.0 rated rpm, and 94.2% efficiency. Design and analysis of the generator are carried out using commercial FEM program ANSYS. Various losses are calculated and thermal analysis is carried out to estimate the maximum stator temperature rise. The shear force density reached 42kN/m^2, and the specific torque was 73 kNm/m^3 and these are comparable to the state of art generator in the wind industry.
more목차
1. Introduction 1
1.1 Background of thesis 1
1.2 Permanent magnet synchronous generator 4
1.3 Low speed direct drive system 6
1.4 comparison between inner rotor and outer rotor 9
2. Design of outer rotor type PMSG 11
2.1 Design requirements 11
2.2 Determine of the generator dimensions 13
2.3 2D modeling using FEM 23
3. Simulation Analysis 30
3.1 Electromagnetic analysis 30
3.2 Cogging torque analysis 47
3.3 Loss calculation 49
3.4 Thermal analysis 54
3.5 Summary of simulation result 60
4. Evaluation of designed PMSG 61
4.1 Active material mass 61
4.2 Torque density 64
5. Conclusion 66
Reference 68
Acknowledgments 71
Curriculum vitae 72