Each element of INTCON must be an integer in the range [1 numVars], ([1 1]). What is the meaning??

This is the code

% Load case30 data from MATPOWER
mpc = loadcase('case30.m');

% Extract data for easier manipulation
gen_data = mpc.gen;
baseMVA = mpc.baseMVA;
ng = size(gen_data, 1);

% Define variables and parameters
P_min = gen_data(:, 10) / baseMVA; % minimum generator output
P_max = gen_data(:, 9) / baseMVA; % maximum generator output
c = gen_data(:, 7); % cost of generation
c0 = sum(c); % fixed cost
demand = sum(mpc.bus(:, 3)) / baseMVA; % total demand

% Formulate the MILP problem
f = c' * P_max + c0; % objective function
Aeq = ones(1, ng); % equality constraint matrix
Aeq = Aeq';
beq = demand; % total demand
lb = P_min; % lower bounds for P XXXXXXXXXXXX
ub = P_max; % upper bounds for P
intcon = 1:ng; % integer variables
intcon = intcon'; %XXXXXXXXXXXXXXXXXXXXXXXXX

% Solve the MILP problem
options = optimoptions('intlinprog','Display','off');
[P_opt, fval, exitflag] = intlinprog(f, intcon, [], [], Aeq, beq, lb, ub, options);

% Display the results
disp('Optimal power generation:');
disp(P_opt);

% Calculate total cost
total_cost = fval / baseMVA;
disp(['Total cost: $' num2str(total_cost)]);

In section "[P_opt, fval, exitflag] = intlinprog(f, intcon, [], [], Aeq, beq, lb, ub, options);", the command window said :Each element of INTCON must be an integer in the range [1 numVars], ([1 1])

Answer 1

[Torsten]

f = c' * P_max + c0; % objective function

is a scalar value. Thus intlinprog assumes you want to solve a problem with only one unknown.

But you define "intcon" as 1:ng which would mean you have at least ng unknowns.

These two settings contradict each other.