I'm finding it difficult to execute loadcase functions using MATPOWER toolbox.
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i get the error message below when i run my code.
Error Message:
>> nath
Attempt to execute SCRIPT loadcase as a function:
C:\Users\vicky brandelle\Desktop\matpower7.1\lib\loadcase.m
Error in nath (line 2)
mpc = loadcase('case15');
Code :
% Load IEEE 15-bus System Data
mpc = loadcase('case15');
% Original Power Flow Analysis
results_initial = runpf(mpc);
% Introduce On-Load Tap Changer (OLTC) at bus 5
regulated_bus = 5;
% Change the type of bus 5 to PV (V controlled, P specified)
mpc.bus(regulated_bus, BUS_TYPE) = 2;
% Define the tap limits and set the initial tap position
tap_min = 0.9;
tap_max = 1.1;
initial_tap = 1.0;
mpc.branch(end+1, :) = [regulated_bus regulated_bus 0.0 tap_min tap_max 0.0 initial_tap 0.0 0.0 0.0 0.0 0.0];
% Power Flow Analysis with OLTC
results_with_oltc = runpf(mpc);
% Display Bus Voltages
fprintf('Initial Bus Voltages:\n');
disp(results_initial.bus(:, VM));
fprintf('Bus Voltages with OLTC:\n');
disp(results_with_oltc.bus(:, VM));
% Compare Line Losses
loss_initial = sum(results_initial.branch(:, PT));
loss_with_oltc = sum(results_with_oltc.branch(:, PT));
fprintf('Initial Total Line Loss: %.2f MW\n', loss_initial);
fprintf('Total Line Loss with OLTC: %.2f MW\n', loss_with_oltc);
采纳的回答
Image Analyst
2023-8-18
You have a file called loadcase.m. The code in that file is a script, not a function. So it cannot take an input argument. Yet you tried to do exactly that in this line:
mpc = loadcase('case15');
Hence it threw that error.
You forgot to attach loadcase.m so we can't check it. But I imagine the suspected fix is to add a line to the beginning of loadcase.m that looks like this:
function loadcase(filename)
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