📄 p1hp.m
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% Parameters of machine used in Projects 1 and 3 of Chapter 6
Sb = 750; % rating in VA
Prated = 750; % output power in W
Vrated = 200; % rated line to line voltage in V
pf = 0.8;
Irated = Sb/(sqrt(3)*Vrated*pf); % rated rms current
P = 4; % number of poles
frated = 60; % rated frequency in Hz
wb = 2*pi*frated; % base electrical frequency
we = wb;
wbm = 2*wb/P; % base mechanical frequency
Tb = Sb/wbm; % base torque
Zb = Vrated*Vrated/Sb; %base impedance in ohms
Vm = Vrated*sqrt(2/3); % magnitude of phase voltage
Vb = Vm; % base voltage
Tfactor = (3*P)/(4*wb); % factor for torque expression
rs = 3.35; % stator wdg resistance in ohms
xls = 6.94e-3*wb;% stator leakage reactance in ohms
xplr = xls; % rotor leakage reactance
xm = 163.73e-3*wb; %stator magnetizing reactance
rpr = 1.99; % referred rotor wdg resistance in ohms
xM = 1/(1/xm + 1/xls + 1/xplr);
J = 0.1; % rotor inertia in kg m2
H = J*wbm*wbm/(2*Sb); % rotor inertia constant in secs.
Domega = 0; % rotor damping coefficent
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