Abstract
This paper presents a nine-phase permanent-magnet synchronous motor (PMSM) drive system based on multiple three-phase voltage source inverters. The nine-phase PMSM was developed as a traction motor for an ultrahigh-speed elevator. The mathematical model of the motor was simplified through symmetry of the system. Using the simplified model, the drive system can be controlled by the well-known d-q control theory. The feasibility and validity of the drive system were experimentally demonstrated at the world's tallest elevator test tower. Moreover, an additional experiment was performed to ensure the fault-tolerance capability of the system.
| Original language | English |
|---|---|
| Article number | 6170558 |
| Pages (from-to) | 987-995 |
| Number of pages | 9 |
| Journal | IEEE Transactions on Industry Applications |
| Volume | 48 |
| Issue number | 3 |
| DOIs | |
| State | Published - 2012 |
Keywords
- Alternating-current (ac) motor drives
- fault tolerance
- high-speed elevators
- industrial power system
- multiphase motors