ee_vienna_rectifier

In the ee_vienna_rectifier demo (matlab2019a), there is a matlab funciton in the Control/PWM Generator(Vienna Rectifier) block. It is hard to understand the algorithm of that function. I can't find any help documents about the Vienna Rectifier PWM Generator. I need some help documents or reference.

Please help

Thanks.

function [TgabcON,TgabcOFF,SmallHexNum] = switchingTime(Vabc,Iabc,vdc,vneutral,fsw)

% Vienna rectifier PWM switching time calculation

Tsw = 1/fsw; % switching period

Tswh = 0.5*Tsw; % half switching period

% choose the small hexagon and calculate new ref. vector

if Iabc(1)*Iabc(2)*Iabc(3) > 0

if Iabc(1) > 0

SmallHexNum = 1;

a = 2;

b = -1;

elseif Iabc(2) > 0

SmallHexNum = 3;

a = -1;

b = 2;

else

SmallHexNum = 5;

a = -1;

b = -1;

end

……

[Tania Cuesta Cano]

Hi,

I have discovered that they use the following PWM algorithm: https://www.jstage.jst.go.jp/article/ieejias1987/116/8/116_8_820/_pdf/-char/en

Regards.

Answer 1

[Sabin]

PWM Generator (Vienna Rectifier) has been added to Simscape Electrical/Control. You can check the doc page and the 2 references for more info.