Abstract
This paper presents a novel twelve-step sensorless drive scheme for a three-phase brushless DC motor, which combines the traditional six-step 120° and 180° conduction modes and has varied active angular period. The proposed scheme is implemented on a single FPGA-chip. Several experiments for various active angle periods from 124° to 168.75° are undertaken. The experimental results show that the torque constant is larger for the larger active angular period.
Original language | English |
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Pages (from-to) | 2555-2557 |
Number of pages | 3 |
Journal | IEEE Transactions on Magnetics |
Volume | 43 |
Issue number | 6 |
DOIs | |
State | Published - 1 Jun 2007 |
Keywords
- Back EMF
- Brushless DC motor
- Sensorless drive
- Zero-crossing