검색 상세

Multibrid식 5MW급 분할코어 풍력발전기의 설계 및 해석 : Design of Multibrid Type 5MW Segmented Core PMSG for Wind turbine

Design of Multibrid Type 5MW Segmented Core PMSG for Wind turbine

원정현 (Jeong Hyun Won, 포항공과대학교 풍력특성화 대학원)

원문보기

초록 moremore
Direct drive permanent magnet synchronous generator (PMSG) is one of the promising trends in the wind power industry for its reliability and high efficiency. However, as the rating power is larger, some problems are caused by its larger size and shipment. This paper is to compensate for these drawbacks by using Multibrid type and segmented cores. This generator has non-overlapping concentrated windings with fractional q to divide cores. It is comprised of 16 segmented stator cores. The generator features 1.46m stator inner radius, 977mm stator length, 80 pole pairs, 105 rated rpm, and 96.9% efficiency. Design and analysis of the generator are carried out using commercial FEM program ANSYS. Finally, it is compared with Direct-drive concept. The comparative results have shown that Multibrid and segmented concept appears more cost-effective than Direct-drive concept.
Direct drive permanent magnet synchronous generator (PMSG) is one of the promising trends in the wind power industry for its reliability and high efficiency. However, as the rating power is larger, some problems are caused by its larger size and shipment. This paper is to compensate for these drawbacks by using Multibrid type and segmented cores. This generator has non-overlapping concentrated windings with fractional q to divide cores. It is comprised of 16 segmented stator cores. The generator features 1.46m stator inner radius, 977mm stator length, 80 pole pairs, 105 rated rpm, and 96.9% efficiency. Design and analysis of the generator are carried out using commercial FEM program ANSYS. Finally, it is compared with Direct-drive concept. The comparative results have shown that Multibrid and segmented concept appears more cost-effective than Direct-drive concept.
목차 moremore
I. Introduction 1
1.1 Background of thesis 1
1.2 Multibrid type PMSG 4
...
I. Introduction 1
1.1 Background of thesis 1
1.2 Multibrid type PMSG 4
1.3 Segmented stator core 7
1.4 Non-overlapping concentrated windings 9

II. Design of Multibrid type segmented core PMSG 14
2.1 Design requirements 14
2.2 Determine of the generator dimensions 17
2.3 2D modeling using FEM 28

III. Simulation 34
3.1 Electromagnetic analysis 34
3.2 Cogging torque analysis 52
3.3 Loss calculation 55
3.4 Thermal analysis 60
3.5 Summary of simulation results 66

IV. Evaluation of designed PMSG 67
4.1 Design of 5MW direct-drive PMSG 67
4.2 Comparison of Multibrid and Direct-drive PMSG 75
4.3 Non-skewing model 79

V. Conclusion 81