Minimization of electromagnetic torque pulsations in a five- phase asynchronous electric drive
https://doi.org/10.17586/0021-3454-2022-65-12-874-885
Abstract
The problem of algorithmic minimization of electromagnetic torque pulsations in a five-phase asynchro- nous electric drive is considered. The principle of constructing an algorithm for space-vector modulation with a monotonic trajectory of the hodograph of the output voltage vector and an algorithm that makes it possible to reduce the torque rip- ples in the speed control range of 100:1 by an average of more than two times, and in the region of low speeds by more than ten times compared to the main algorithm currently in use, are proposed. This allows to consider a five-phase asyn- chronous electric drive as an alternative to a synchronous drive in the tasks of precision control of the movement coordi- nates. However, at a rotation frequency above half the nominal, resonant phenomena are observed, leading to torque ripples up to 30 %, which requires special measures and can completely exclude the possibility of using such a drive for a number of tasks.
Keywords
Supporting agencies: This research was supported by Priority 2030 Federal Academic Leadership Program
About the Authors
V. S. Tomasov
ITMO University
Russian Federation
Russian Federation
Valentin S. Tomasov — PhD, Associate Professor, Faculty of Control Systems and Robotics; Professor
St. Petersburg
A. A. Usoltsev
ITMO University
Russian Federation
Russian Federation
Aleksander A. Usoltsev — PhD, Associate Professor, Faculty of Control Systems and Robotics; Associate Professor
St. Petersburg
A. D. Vertegel
ITMO University
Russian Federation
Russian Federation
Post-Graduate Student, Faculty of Control Systems and Robotics
St. Petersburg
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Review
For citations:
Tomasov V.S., Usoltsev A.A., Vertegel A.D. Minimization of electromagnetic torque pulsations in a five- phase asynchronous electric drive. Journal of Instrument Engineering. 2022;65(12):874-885. (In Russ.) https://doi.org/10.17586/0021-3454-2022-65-12-874-885
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