Back to Search
Start Over
Linearized Modeling of Switched Reluctance Motor for Closed-Loop Current Control.
- Source :
-
IEEE Transactions on Industry Applications . Jul2016, Vol. 52 Issue 4, p3146-3158. 13p. - Publication Year :
- 2016
-
Abstract
- Current control of a switched reluctance motor (SRM) is challenging due to nonlinearity and double saliency of the machine. A linear proportional-integral (PI)-based current controller, which is popular in other electrical machines, cannot be directly applied, as this requires a linearized machine model. This paper examines different small-signal linearized models for an SRM and identifies the model best suited for the purpose of current controller design. This paper then utilizes this linearized model to propose a fixed proportional-integral (PI)-based current controller, the parameters of which can be selected directly from the machine parameters. This paper also proposes a simple method to evaluate back-electromotive force (EMF) for the purpose of disturbance rejection during current control. The performance of the proposed fixed-PI-based control with back-EMF compensation is better than that of delta modulation in terms of current ripple; it is comparable to that of variable-gain PI with back-EMF compensation in terms of current ripple and current reference tracking. While variable-gain PI requires knowledge of the entire flux-linkage characteristics and involves calculation of controller gains in every sampling interval, the proposed method requires only limited details of the motor characteristics and is much simpler to implement. [ABSTRACT FROM PUBLISHER]
Details
- Language :
- English
- ISSN :
- 00939994
- Volume :
- 52
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Industry Applications
- Publication Type :
- Academic Journal
- Accession number :
- 116872214
- Full Text :
- https://doi.org/10.1109/TIA.2016.2550521