Name
Title | ||
|---|---|---|
Direct-Drive Conical-Rotor Permanent Magnet Synchronous Generator for Turbo-Expander, Accounting for Adaptive Equilibrium of Axial Force. |
Abstract | ||
|---|---|---|
The permanent magnet synchronous generator (PMSG) has been widely employed in high-speed direct-drive turbo-expander for distributed energy generation. However, for conventional PMSG based turbo-expander system, expensive mechanical balance devices should be installed on the rotor to restrain the axial force of turbine impeller under high-speed flow, which may cause both complex system structure and higher manufacturing cost. Thus, in this paper, a direct-drive conical-rotor PMSG (CR-PMSG) for turboexpander is developed, which can generate an axial magnetic force as equilibrant to counteract the axial force of turbine impeller without mechanical balance device, so as to reduce the system complexity, improve the operating performance and extend the operating cycle. First, the structural features of the CR-PMSG are introduced and the basic principle of axial force balance is analyzed. Then, a 1.5 kW, 6000 rpm CRPMSG with cone angle of 6 degrees is designed. Using 3-D finite element analysis, the axial force of turbine impeller, the axial magnetic force of the rotor, and the electromagnetic performance are simulated. Also, the control strategy of d, q-axis currents is obtained to achieve the adaptive equilibrium of axial force. Finally, a CR-PMSG prototype is fabricated and tested to validate the theory. |
Year | DOI | Venue |
|---|---|---|
2018 | 10.1109/ACCESS.2018.2881212 | IEEE ACCESS |
Keywords | Field | DocType |
Adaptive equilibrium of axial force,conical-rotor permanent magnet synchronous generator (CR-PMSG),finite element analysis (FEA),turbo-expander | Magnetic field,Impeller,Computer science,Mechanical engineering,Turboexpander,Finite element method,Rotor (electric),Turbine,Air gap (plumbing),Permanent magnet synchronous generator,Distributed computing | Journal |
Volume | ISSN | Citations |
6 | 2169-3536 | 0 |
PageRank | References | Authors |
0.34 | 0 | 5 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Jiaobao Wang | 1 | 0 | 0.34 |
| Shoudao Huang | 2 | 7 | 6.25 |
| Chao Guo | 3 | 6 | 6.59 |
| Haokun Wu | 4 | 0 | 0.34 |
| Yaojing Feng | 5 | 0 | 0.34 |