An Efficiency Estimation Method for Inverter Fed Induction Motors
| Autor: | Johnny Rengifo, Jose M. Aller |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Observer (quantum physics)
Rotor (electric) Stator 020208 electrical & electronic engineering 02 engineering and technology law.invention law Control theory 0202 electrical engineering electronic engineering information engineering Inverter Transient (oscillation) Linear combination Electrical impedance Induction motor Mathematics |
| Zdroj: | 2021 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD). |
| Popis: | This paper presents an efficiency estimation method for inverter-fed induction motors using a rotor currents observer. A recursive linear combination of stator currents and previous rotor currents' values are used to calculate the currents. The deep-bar model machine parameters are estimated from a no-load motor start-up transient instantaneous impedance. During the efficiency estimation process, the algorithm requires the stator current measurement and the machine parameters. The proposed methodology was experimentally validated using an induction motor with a load ranged between 30% to 105%. The results are compared with the IEC600-34-2-2013-TS, with a deviation of 0.5% for the worst case. This performance demonstrates the application of the methodology in in-situ applications. |
| Databáze: | OpenAIRE |
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