Abstract
The control performance of Hall sensor based high speed brushless DC (BLDC) motor drives depends heavily on the accuracy of Hall sensor signals. Due to the existence of Hall signal errors, the system may operate under unbalanced conditions which will lead to asymmetric currents and high torque ripple. For high speed drive, the pulse-width modulation (PWM) update delay will also lead to inaccurate commutation. In this paper, two Hall signal errors, i.e., misaligned and uneven Hall signal errors, are investigated and a Hall signal balancing strategy is developed to detect Hall signal errors and regenerate balanced Hall signals. A new PWM generation scheme is then proposed to eliminate the PWM update delay. Both simulation and experiment results have verified the effectiveness of the proposed strategy.
| Original language | English |
|---|---|
| Title of host publication | 2021 16th International Conference on Ecological Vehicles and Renewable Energies (EVER) |
| Publisher | IEEE |
| Pages | 1-9 |
| Number of pages | 9 |
| ISBN (Electronic) | 978-1-6654-4902-1 |
| ISBN (Print) | 978-1-6654-4903-8 |
| DOIs | |
| Publication status | Published - 23 Jun 2021 |
| Externally published | Yes |
| Event | 16th International Conference on Ecological Vehicles and Renewable Energies - Monte Carlo, Monaco Duration: 5 May 2021 → 7 May 2021 |
Conference
| Conference | 16th International Conference on Ecological Vehicles and Renewable Energies |
|---|---|
| Abbreviated title | EVER |
| Country/Territory | Monaco |
| City | Monte Carlo |
| Period | 5/05/21 → 7/05/21 |
Bibliographical note
Publisher Copyright:© 2021 IEEE.
Keywords
- Brushless DC (BLDC) drive
- commutation balancing strategy
- Hall signal error
- permanent magnet motor
- Pulse-width modulation