Synchronous PWM Pulse Number Selection for High-Efficiency Drive of Propulsion System

This paper presents a method to increase the efficiency of the propulsion system through a synchronous pulse width modulation (synchronous PWM) pulse number selection method. In a propulsion system consisting of an inverter and a traction motor, the efficiency of inverter and the efficiency of tract...

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Bibliographic Details
Published inIECON 2023- 49th Annual Conference of the IEEE Industrial Electronics Society pp. 1 - 5
Main Authors Kim, Joon-Seok, Kim, Do-Hyeon, Lee, June-Hee, Song, Young-Shin, Lee, June-Seok
Format Conference Proceeding
LanguageEnglish
Published IEEE 16.10.2023
Subjects
high-efficiency
inverter loss
Inverters
motor loss
Propulsion
propulsion system
Pulse width modulation
Switching frequency
Synchronous motors
synchronous pulse width modulation (PWM)
Three-dimensional displays
Traction motors
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Summary:This paper presents a method to increase the efficiency of the propulsion system through a synchronous pulse width modulation (synchronous PWM) pulse number selection method. In a propulsion system consisting of an inverter and a traction motor, the efficiency of inverter and the efficiency of traction motor are generally in a trade-off relationship depending on the switching frequency. Therefore, it is possible to adjust the efficiency of the inverter and efficiency of traction motor by using the synchronous PWM that can adjust the switching frequency. The proposal method produces a loss table by performing inverter and motor loss analysis on pulse numbers and selects pulse number that increase efficiency using the table. The validity of the proposed method was verified through simulation.
ISSN:2577-1647
DOI:10.1109/IECON51785.2023.10312253