Abstract
The design of novel robust speed and rotor flux controllers for a field oriented controlled induction motor drive system is presented in this paper. The controllers are designed in terms of stability and performance criteria through a graphical technique, called loop-shaping, taking into account the effects of external disturbances and motor parameter deviations from the nominal model. Employing experimentally verified models, the controllers are tested using numerical simulations, for a large number of off-nominal parameter values. It is observed that for a doubling of the rotor resistance, the maximum absolute error in the flux magnitude is only 0.01 p.u. A comparison of the proposed controller approach with conventionally used proportional plus integral (PI) controllers indicates that PI controllers do not function in a stable manner even for an increase of 20% in rotor resistance.
| Original language | English |
|---|---|
| Pages (from-to) | 11-27 |
| Number of pages | 17 |
| Journal | Advances in Modeling and Analysis C |
| Volume | 58 |
| Issue number | 3-4 |
| State | Published - 2003 |
Keywords
- Field oriented control
- Induction motor drive
- Robust control
ASJC Scopus subject areas
- Control and Systems Engineering
- Modeling and Simulation