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Unification of SPWM and SVPWM in four-leg inverter(PDF)

[ISSN:1007-449X/CN:23-1 408/TM]

Issue:
2010年01
Page:
23-28
Research Field:
Publishing date:

Info

Title:
Unification of SPWM and SVPWM in four-leg inverter
Author(s):
WANG Xiao-gang1; 2; XIE Yun-xiang1; HUANG Shao-hui1; SHUAI Ding-xin1
1.College of Electric Power; South China University of Technology; Guangzhou 510640; China; 2.College of Mechanical and Electrical Engineering; Guangzhou University; Guangzhou 510006; China
Keywords:
inverter four-leg pulse width modulation unification digitalization
PACS:
TM464
DOI:
-
Abstract:
Coordinate transformation is necessary in conventional space vector pulse width modulation(SVPWM) scheme of the fou-leg inverter.The SVPWM and sinusoidal pulse width modulation(SPWM) techniques used in four-leg inverter were analyzed in detail.A fast digital three-dimensional(3D) SVPWM algorithm which eliminates coordinate transformation and saves calculating time was proposed.Conventional 3D-SPWM with improvement was equivalent to 3D-SVPWM absolutely was proved;they were two unified PWM methods.In nature,t...

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Last Update: 2010-06-02