conversion_mixte.py

Created by famille-bvc

Created on November 14, 2023

1.01 KB


PD2 mixte avec 2 diodes et 2 thysistors


K parfait 
L grand deltaIS = 0 
Ve = Vracine 2 sin (teta)
teta = wt
w = 2pif
f = 1/T


TH1 devient ON si VE>OV + imopulsion alpha 
TH1 devient OFF si ITH1 s'annule ou si TH3 devient ON
TH3 devient ON si VE<OV + impulsion alpha 
TH3 devient OFF si ITH3 s'annule ou si TH1 est ON


D4 ON si VE>OV
D2 ON si VE < OV


phase 1 alpha<teta<pi

TH1 D1 ON 
TH3 D2 OFF
VS = VE 
IE = ID 

phase 2 pi<teta<pi + alpha 

TH1 D2 ON
TH3 D4 OFF 
VS = 0 
IE = 0 

phase 3 = pi+alpha < teta< 2pi 
TH3 D2 ON
TH1 D4 OFF
VS = -VE 
IE = -ID

phase 4 = 2pi<teta<2pi + alpha
TH3 D4 ON
TH1 D2 OFF
VS = 0 
IE = 0 


IS = Vsmoy/R 
PS = Vsmoy x IS 


VSMOYEN = 1/2PI integrale VS dteta de 0 a pi 
= Vracine2/pi (1+cos alpha)
= (Vracine2/pi) x V

= PD2 MIXTE NON REVERSIBLE 


PE = PS = VS moyen IS = (racine2 / pi) x V x IS (1+cos alpha)


QE = QEPD2TH/2


ccl = Vs moyen variable et moins de conso de QE mais non reversible 


pont mixte mieux car 2 fois moins de puisssance reactive consomee 

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