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Speed-Sensorless Control of Induction Motors for Electric Vehicles
Technical Paper
2000-01-1603
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
Future Car Congress
Language:
English
Abstract
An electric bus system has been operating in the downtown area of Chattanooga, Tennessee for more than four years. The buses use traditional hard-switched IGBT inverters driving special induction motors with a speed sensor (tachometer) and two embedded flux-sensing windings to provide rotor speed and flux information to the motor controller for implementation of high performance field oriented control (vector control). The induction motor is oil-cooled and equipped with an internal planar gear reduction. The current system has experienced failures in both speed sensors and flux sensors because they are unreliable, susceptible to EMI and must operate in a hostile environment created by oil leaks. A speed- and flux-sensorless induction motor drive system with a new 100 kW soft-switching inverter has been implemented to replace the existing system. The new soft-switching inverter is able to provide 300 A (rms) and 230 V (rms) continuous power to the motor with no voltage surges and reduced dv/dt (<300V/us) at switching. The new inverter also draws ripple-less DC current from the battery. As a result, the new inverter is friendly to the motor and battery. Extended lifetime is expected for both the motor and battery. The new inverter with the speed- and flux-sensorless control has been road-tested and has achieved satisfactory performance. The project was supported under the Department of Energy (DOE) funding and local industry partnership.
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Authors
Citation
Peng, F. and Adams, D., "Speed-Sensorless Control of Induction Motors for Electric Vehicles," SAE Technical Paper 2000-01-1603, 2000, https://doi.org/10.4271/2000-01-1603.Also In
References
- Schauder C. “Adaptive speed identification for vector control of induction motors without rotational transducers,” IEEE/IAS Annual Meeting 1989 493 499
- Tamai S. et al. “Speed sensorless vector control of induction motor with model reference adaptive system,” IEEE/IAS Annual Meeting 1987 189 195
- Peng F. Z. Fukao T. “Robust speed identification for speed-sensorless vector control of induction motors,” IEEE Transactions on Industry Applications 30 5 1234 1240 Sept. Oct. 1994
- Beck M. Nuanin D. “A new method for the calculation of the slip frequency for a sensorless speed control of a squirrel-cage induction motor,” IEEE/PESC 1985 678 683
- Abbondanti A. Brenne M. “Variable speed induction motor drives use electronic slip calculator based on motor voltages and currents,” IEEE Trans. Ind. Appl. 11 5 483 488 1975
- Fratta A. et al. “Vector control of induction motors without shaft transducer,” IEEE/PESC 1988 829 492
- Hurst K. Habetler T. Griva G. Profumo F. “Zero-speed tacoless IM torque control: simply a matter of stator voltage integration,” IEEE Trans. Ind. Appl. 34 4 790 795 1998
- Lipo T. Chang K. “A new approach to flux and torque sensing in induction machines,” IEEE Trans. Ind. Appl. 22 4 731 737 1986