新能源双级式光伏并网发电系统Matlab/Simulink仿真

%---------------------------------spece------------------------------------ Ts = 1e-4; Pn = 100e3; Up_p = 380; Urms = 220; Up = 311; Io = Pn/3/220; Ip = Io*sqrt(2); f = 50; Vbus_ref = 700; %--------------------------design of inverter------------------------------ fsw = 10e3; fres = 0.1*fsw; L_total_max = sqrt((Vbus_ref/sqrt(3))^2 -Up^2 )/(2*pi*f*Ip); Cf_max = 0.05*Pn/(3*2*pi*f*Urms^2); Cf = Cf_max*0.55; Rd = 1/(3*2*pi*f*Cf); y = 0.3; L_inverter = (y+1)/(y*Cf*(2*pi*fres)^2); Lg = y*L_inverter; L_total = L_inverter + Lg; %---------------------design of boost converter---------------------------- Vin_max = 363; Vin_min = 250; Vdc = Vbus_ref; Idc = Pn/Vdc; fsw_boost = 5e3; D_max = 1-(Vin_min/Vdc); L_boost_min = Vin_min^2*(Vdc-Vin_min)/(0.4*fsw_boost*Vdc^2*Idc); L_boost = 4*L_boost_min; C_boost_min = Idc*(Vdc-Vin_min)/(fsw_boost*Vdc*0.01*Vdc); C_boost = 1.2*C_boost_min;