Open AccessCompensation PWM Technique for Extended Output Voltage Range in Three-Phase VSI Using Three Shunt Resistors
Author(s) -
Sungho Shin,
Rae-Kwan Park,
Byoung-Kuk Lee
Publication year - 2014
Publication title -
journal of electrical engineering and technology/journal of electrical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.226
H-Index - 27
eISSN - 2093-7423
pISSN - 1975-0102
DOI - 10.5370/jeet.2014.9.4.1324
Subject(s) - pulse width modulation , resistor , shunt (medical) , control theory (sociology) , compensation (psychology) , voltage , dead zone , compensation methods , three phase , engineering , computer science , electrical engineering , medicine , psychology , control (management) , artificial intelligence , psychoanalysis , cardiology , oceanography , digital marketing , geology , world wide web , return on marketing investment
This paper proposes a compensation PWM technique for the extension of output voltage ranges in three-phase VSI applications using three shunt resistors. The proposed technique aims to solve the dead zone, which occurs in high modulation indexes. In the dead zone, two phase currents cannot be sampled correctly, so that the three-phase VSI cannot be operated up to the maximum output voltage. The dead zone is analyzed in detail, and the compensation PWM algorithm is developed. The proposed algorithm is verified by numerical analysis and experimental results.