Abstract
In a conventional stator-flux-oriented (SFO) induction machine drive system, the field-weakening method is used to vary the stator-flux reference in proportion to the inverse of the rotor speed. This paper investigates why the maximum torque capability cannot be obtained in a conventional SFO system. This paper proposes a new selection method of flux reference to obtain maximum torque capability in the field-weakening region by considering voltage, torque, and current limits. The proposed method is verified by simulation and experiment with a 5-hp induction motor drive.
| Original language | English |
|---|---|
| Pages (from-to) | 117-122 |
| Number of pages | 6 |
| Journal | IEEE Transactions on Industry Applications |
| Volume | 38 |
| Issue number | 1 |
| DOIs | |
| State | Published - 2002 |
Keywords
- Field weakening
- Induction motor
- Maximum torque control