Self-commissioning of RFO IM drives: one-test identification of the magnetization characteristic of the motor

This paper is concerned with the self-commissioning of rotor-flux-oriented (RFO) induction motor (IM) drives operating at variable flux. A solution is proposed which identifies the magnetization characteristic of the motor by means of one test only. During the test, the motor is kept at standstill w...

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Bibliographic Details
Published in:IEEE transactions on industry applications 2001-11, Vol.37 (6), p.1801-1806
Main Authors: Bertoluzzo, M., Buja, G.S., Menis, R.
Format: Article
Language:English
Subjects:
Automatic control
Control systems
Electric potential
Flux
Hardware
Inductance
Induction motors
Magnetic flux
Magnetization
Mathematical models
Motors
Rotors
Saturation magnetization
Testing
Voltage
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Summary:This paper is concerned with the self-commissioning of rotor-flux-oriented (RFO) induction motor (IM) drives operating at variable flux. A solution is proposed which identifies the magnetization characteristic of the motor by means of one test only. During the test, the motor is kept at standstill with a single-axis supply. Within the same test, the rotor resistance is also identified. The solution is suitable to be implemented in commercial drives, as it makes use of the on-board hardware. The paper starts by reviewing the model of a saturated IM under single-axis excitation. Then the theoretical bases of the solution are set forth and the test is formulated. Afterward, an experimental rig is built around a commercial RFO IM drive and the magnetization characteristic of the motor is identified. Its comparison with data obtained from standard no-load tests with different voltage supplies confirms the validity of the solution.
ISSN:0093-9994
1939-9367
DOI:10.1109/28.968194