Back to Search
Start Over
An Assistant-Mover-Based Position Estimation Method for Planar Switched Reluctance Motors
- Source :
- IEEE Transactions on Industrial Electronics. 67:6066-6077
- Publication Year :
- 2020
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2020.
-
Abstract
- An accurate mover position is important for a planar switched reluctance motor (PSRM) to achieve precision positioning; however, position sensors are susceptible to the influence from harsh conditions and are relatively expensive. In this article, an assistant-mover-based position estimation method is proposed to increase the reliability and reduce the cost of a PSRM system. The method is based on a mapping relationship between the flux density and position of the assistant mover. First, the configuration of the assistant movers is presented. Then, an analytical model of the flux density of the assistant mover is developed by using an equivalent magnetic circuit method. Based on the analytical model, the parameters of the assistant mover are determined. According to the flux density characteristics, a position estimation algorithm with the advantages of not requiring previous experimental data, simple computation, and small memory consumption is developed. Moreover, considering the deviation in the characteristics of each assistant mover, a compensation strategy is proposed to obtain better position estimation accuracy. Finally, the proposed method is implemented with the PSRM system. The effectiveness of the proposed position estimation method is verified experimentally.
- Subjects :
- Computer science
Reliability (computer networking)
020208 electrical & electronic engineering
ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION
Flux
02 engineering and technology
Switched reluctance motor
Magnetic flux
Magnetic circuit
Planar
Control and Systems Engineering
Control theory
Position (vector)
0202 electrical engineering, electronic engineering, information engineering
Electrical and Electronic Engineering
Position sensor
Subjects
Details
- ISSN :
- 15579948 and 02780046
- Volume :
- 67
- Database :
- OpenAIRE
- Journal :
- IEEE Transactions on Industrial Electronics
- Accession number :
- edsair.doi...........a5016911fb4c2cd743d45f751e7ac952