237号资源-simulink仿真：两台200kW光伏电池模型-本人博客有解读

function D = PandO(Param, Enabled, V, I) % MPPT controller based on the Perturb & Observe algorithm. % D output = Duty cycle of the boost converter (value between 0 and 1) % % Enabled input = 1 to enable the MPPT controller % V input = PV array terminal voltage (V) % I input = PV array current (A) % % Param input: Dinit = Param(1); %Initial value for D output Dmax = Param(2); %Maximum value for D Dmin = Param(3); %Minimum value for D deltaD = Param(4); %Increment value used to increase/decrease the duty cycle D % ( increasing D = decreasing Vref ) % persistent Vold Pold Dold; dataType = 'double'; if isempty(Vold) Vold=0; Pold=0; Dold=Dinit; end P= V*I; dV= V - Vold; dP= P - Pold; if dP ~= 0 & Enabled ~=0 if dP < 0 if dV < 0 D = Dold - deltaD; else D = Dold + deltaD; end else if dV < 0 D = Dold + deltaD; else D = Dold - deltaD; end end else D=Dold; end if D >= Dmax | D<= Dmin D=Dold; end Dold=D; Vold=V; Pold=P;