Improvement of Start-Up Performance at the Standstill Condition of Induction Motor Speed Sensorless Vector Control Using Adaptive Flux Observer
- Resource Type
- Conference
- Authors
- Izumi, Erina; Nagataki, Masaki; Kondo, Keiichiro; Tobayashi, Shunsuke; Suzuki, Hiromitsu
- Source
- 2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia) Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia), 2022 International. :800-806 May, 2022
- Subject
- Power, Energy and Industry Applications
Robotics and Control Systems
Transportation
Estimation error
Torque
Induction motors
Rotors
Observers
Inverters
Frequency estimation
flux observer
induction motor
speed sensorless
vector control
- Language
Speed sensorless vector control for induction motors using an adaptive flux observer makes it difficult to output high torque in a stable manner at a standstill when the error of the output voltage occurs mainly owing to the inverter's dead-time. The voltage error owing to the dead-time leads to a speed estimation error. Consequently, an axis misalignment occurs and a torque value that tracks the reference command value cannot be output. In this study, a method with feed-forward voltage compensation is proposed and evaluated. The proposed method is verified by an experimental test system with a 2.2 kW IM.