Open AccessSuppression of common mode voltage for matrix converter based on improved double line voltage synthesis strategy
Author(s) -
Shi Tingna,
Huang Qiyong,
Yan Yan,
Xia Changliang
Publication year - 2014
Publication title -
iet power electronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.637
H-Index - 77
eISSN - 1755-4543
pISSN - 1755-4535
DOI - 10.1049/iet-pel.2013.0505
Subject(s) - voltage , control theory (sociology) , common mode signal , matrix (chemical analysis) , pulse width modulation , line (geometry) , modulation (music) , noise (video) , integrating adc , computer science , electronic engineering , engineering , mathematics , physics , forward converter , boost converter , materials science , electrical engineering , acoustics , artificial intelligence , geometry , control (management) , image (mathematics) , digital signal processing , analog signal , composite material
Common mode voltage (CMV) is responsible for electromagnetic noise and bearing damage of an ac motor. This study presents the consistency between double line voltage synthesis (DLVS) and space vector pulse width modulation (SVPWM) on matrix converter, and proposes two improved DLVSs based on SVPWM, which can effectively reduce the maximum CMV. Both methods can reduce the peak value by 42.3% while keeping the local average values of the output voltage and the input current unaffected. In addition, compared with the existing optimised zero vector modulation, two strategies can improve the output and input current qualities, respectively. Simulation and experimental results verify the effectiveness of the proposed methods.