Dynamic shaft torque observer structure enabling accurate transient loss measurements
| Autor: | Huthaifa Flieh, Robert D. Lorenz, Eigo Totoki |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Coupling
Stall torque Engineering Hardware_MEMORYSTRUCTURES Torque motor business.industry 020208 electrical & electronic engineering 05 social sciences 02 engineering and technology Direct torque control Control theory 0202 electrical engineering electronic engineering information engineering Torque Torque sensor 0501 psychology and cognitive sciences Transient (oscillation) business Damping torque 050107 human factors ComputingMethodologies_COMPUTERGRAPHICS |
| Zdroj: | 2017 IEEE International Electric Machines and Drives Conference (IEMDC). |
| DOI: | 10.1109/iemdc.2017.8002037 |
| Popis: | Efficiency and power loss are the necessary metrics for evaluating the performance of electrical drives. These two metrics are calculated based on the measured input and output power of the drive. Input power is calculated from the measured terminal voltages and currents, while output power is calculated by multiplying the measured motor speed with the measured shaft torque. Torque transducers are normally used to measure the windup shaft torque. This method is effective for steady state speed operation. This paper proposes an observer structure that uses standard drive sensors that is capable of estimating the shaft torque during both steady state and transient speed operations, including torque oscillations due to resonance. This enables the motor losses to be measured during transient speed operations (accel./deccl.) which is generally not feasible using torque sensors. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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