A fast algorithm for three-level SVPWM in NPC inverters based on traditional three-level SPWM

Author

Ning, Li ; Yue, Wang ; YingWei, Jiang ; Zhaoan, Wang

Author_Institution

Xi´´an Jiaotong Univ., Xi´´an, China

fYear

2010

fDate

16-18 June 2010

Firstpage

53

Lastpage

57

Abstract

A fast algorithm for three-level space vector pulse wide modulation (SVPWM) in neutral point clamped (NPC) inverters based on traditional three-level sinusoidal pulse wide modulation (SPWM) is proposed. The acting time relation of each state in each phase is got by deeply researching the similarities and differences of three-level SPWM and SVPWM. This algorithm can realize all kinds of state sequences easily, it does not need to do trigonometric function, irrational operation and coordinate transformation, it just needs ordinary arithmetic, therefore the calculation is very simple and the result is much more accurate. The fast algorithm can be easily implemented on microprocessor and the executing speed is faster than the conventional three-level SVPWM algorithm.

Keywords

Inverters; Space vector pulse width modulation; Switches; Switching loss; Voltage control; acting time relation; fast algorithm; state sequences; three-level SVPWM;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics for Distributed Generation Systems (PEDG), 2010 2nd IEEE International Symposium on

Conference_Location

Hefei, China

Print_ISBN

978-1-4244-5669-7

Type

conf

DOI

10.1109/PEDG.2010.5545828

Filename

5545828