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Hybrid sensorless control solutions can offer the possibility of closed loop vector controlled operation when it is impractical or sometimes even impossible to rely on typical position sensors for position feedback. The hybrid approach combines the complementary benefits of mathematical model approaches and saliency tracking methods to allow operation across the entire speed range with the ability...
This paper presents a high-speed drive to be used for electrically-assisted turbo charging in an internal combustion engine. The electrification of the turbo-charger system can enhance the performance and reduce the dynamic drawbacks that affect conventional solutions i.e. turbo-lag. However, the design of the electric drive presents some challenges, especially related to the thermally aggressive...
Sensorless control of an axial flux permanent magnet motor drive is proposed and tested. The motor is not purposely designed for sensorless control and shows a very small inherent saliency. This significantly affects the saliency-based position estimation in the low speed region. Other non-idealities, such as the non-sinusoidal back-EMF waveforms and possible misalignment between stator and rotor...
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