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CEM
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Vmag = Veff | |
THDfond = sqr(sum(In^2))/I1 | |
= sqr(I^2-I1^2-I0^2)/I1 | |
Indu : | |
(L + R) // Cpad | |
Condo : | |
Lpad + R + C | |
Res : | |
L + (Cpad // R // Cfuite) | |
Pist circ fermé : | |
Circuit RLC 2nd ordre | |
P = 3*V*I1*cos(alp) | |
Q = 3*v*I1*sin(alp) | |
S = 3*V*I | |
D = sqr(S^2-Q^2-P^2) | |
Ieff = sqr(1/T * int(i^2)) | |
fct puissance = P/S |
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I retard sur V = Inductif | |
-> mettre condo | |
I deforme = harmonique | |
forte distor | |
-> filtre anti harmoni | |
-> filtre passif | |
-> filtre hybride | |
-- perturba couplage -- | |
V/E = RCp/Rcp+(RCp+1) | |
e // C + C + R//C | |
-- pollutio harmo -- | |
S = sqr(3)*U*Ieff | |
Relever facteur = condo | |
construction signal = | |
- utilisé signaux pair, pas toujours utile |
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rang 5 => quand n vaut 2 | |
rang 3 => n vaut 1 | |
-- del harmoni -- | |
avec filtre LC | |
1-LCw^2/JCw | |
1-LCw^2 = 0 | |
LC = 1/w^2 | |
w = freq de coupure | |
freq reso = | |
1/(2pi*sqr(L*C)) | |
micro = -6 | |
Anabac = attention distances | |
Impulsion, tension = | |
U = Ldi/dt = (0.1*10^-6)*(1/Tm) |
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faraday = | |
e = dO/dt | |
Ampère = int(Hdl) = Nenlacé | |
H et l vecteurs | |
O = B*S | |
B = µ0*H | |
FEM = -dO/dt = (((-µ0*l)/(2pi)) * ln(r2/r1))*di/dt | |
i(t) = i0*cos(wt) | |
(on derive) | |
i triangulaire > u carré |
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