Saliency-Based Sensorless Drive Using the Measurement Vector Insertion for PWM Voltage Injection
Journal
2021 IEEE International Future Energy Electronics Conference, IFEEC 2021
Date Issued
2021
Author(s)
Abstract
Saliency-based position sensorless drive with the pulse width modulation (PWM) voltage injection has advantages of high estimation bandwidth and low acoustic noise. However,multiple currents should be sampled every PWM cycle for spatial saliency calculation. Considering the standard SVPWM control,the PWM voltage injection distorts the symmetric voltage pattern with additional position estimation errors. This paper proposes a modified PWM through the measurement vector insertion (MVI) for PWM injection based position estimation. By integrating the MVI with discontinuous PWM (DPWM),the proposed PWM injection maintains the symmetric voltage pattern for FOC. This MVIPWM injection is compared to other PWM injection methods on an interior PM machine. All the advantages of MVIPWM on the saliency-based drive are verified by experimental results. © 2021 IEEE.
Subjects
saliency-based drive; voltage-source inverter and PWM voltage injection
SDGs
Other Subjects
Acoustic noise; Electric inverters; Voltage control; Modulation voltage; Pulsewidth modulations (PWM); Saliency-based drive; Sensorless drive; Symmetrics; Voltage injection; Voltage patterns; Voltage source inverter; Voltage-source inverte and pulse width modulation voltage injection; Voltage-source inverter; Pulse width modulation
Type
conference paper