Feedforward compensation method to reduce startup inrush current of Three-phase PWM converter

In this paper, a fast voltage strategy of three-phase AC/DC pulse width modulation (PWM) converter applying a feedforward compensation method is proposed. Conventional PI regulator control method and soft staring method are easy to generate inrush current from startup period. It leads to influence d...

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Bibliographic Details
Published in2016 IEEE Transportation Electrification Conference and Expo, Asia-Pacific (ITEC Asia-Pacific) pp. 285 - 289
Main Authors Hyeong-Jun Choi, Seung-Wook Hyun, Seok-Jin Hong, Chung-Yuen Won
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2016
Subjects
Feedforward compensation
Inrush current
Resistors
Steady-state
Switches
Three-phase PWM converter connected grid
Voltage control
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Summary:In this paper, a fast voltage strategy of three-phase AC/DC pulse width modulation (PWM) converter applying a feedforward compensation method is proposed. Conventional PI regulator control method and soft staring method are easy to generate inrush current from startup period. It leads to influence device's parts life, system reliability and increase the stresses on the switches. The paper analyzed Three-phase PWM converter and researched cause of inrush current during startup. Also, it solved the small signal modeling with output current. Based on contents, this paper determines feedforward compensation value and prevents saturating PI controller by applying feedforward compensation. The proposed feed forward compensation method is illustrated with PSIM simulation.
DOI:10.1109/ITEC-AP.2016.7512964