Digital control system with an adaptive feedback loop for AC motor PWM drive

The paper presents the developed digital control system with an adaptive feedback loop for AC motor PWM drive which allows one to keep stable closed loop performance of the drive while the PWM frequency can be changed. The adaptation of the drive's dynamic characteristics is implemented by chan...

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Bibliographic Details
Published in2018 17th International Ural Conference on AC Electric Drives (ACED) pp. 1 - 4
Main Authors Sevostyanov, Nikita A., Gorbunov, Roman L., Zharkov, Maksim A.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.03.2018
Subjects
AC drive
AC motors
adaptive control
Digital control
digital filter
Digital filters
Frequency control
Power harmonic filters
Pulse width modulation
PWM drive
Time-frequency analysis
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Summary:The paper presents the developed digital control system with an adaptive feedback loop for AC motor PWM drive which allows one to keep stable closed loop performance of the drive while the PWM frequency can be changed. The adaptation of the drive's dynamic characteristics is implemented by changing parameters of the compensators and the digital filters. The experimental and simulation results for 9 kW high-speed drive confirm stable control loop performance with nearly equal frequency and time responses at both simulated PWM frequencies.
DOI:10.1109/ACED.2018.8341704