I don;t know how to fix this error

clear all

define_constants;

mpc=loadcase('case24_ieee_rts');

demand=[1775.835,1669.815,1590.3,1563.795,1563.795,1590.3,1961.37,2279.43,2517.975,2544.48,2544.48,2517.975,2517.975,2517.975,2464.965,2464.965,2623.995,2650.5,2650.5,2544.48,2411.955,2199.915,1934.865,1669.815]

time=[1:1:24];

%proportional load distribution

tot_load=0;

for i=1:1:24

tot_load=tot_load+mpc.bus(i,PD);

end

load_prc=mpc.bus(:,PD)./tot_load;

a=1;

c=1;

for i=1:1:24

mpc.bus(:,PD)=load_prc.*demand(i);

if i==19

for a <= 33 the error is 'Invalid use of operator'

mpc.gen([a],GEN_STATUS)=0

mpc.gen([1],GEN_STATUS)=0

c=c+1;

normal(i)=runpf(mpc);

voltage=normal(19).bus(:,VM)

T=table(voltage)

[Stephen23]

It looks like you are trying to write a WHILE loop, not a FOR loop.

CLEAR ALL is unlikely to be required: why does your script need to remove cached functions from memory?

Answer 1

[Prateekshya]

As per my understanding you are getting "invalid use of operator" error in the line where "for loop" is written. In MATLAB, the “for-loop” syntax is as follows:

for a = 1 : k : n
    % Your code here
end

This syntax ensures that the loop will start from “1” and go up to “n” with a step size of “k”. For example: “1 : 2 : 5” means the loop with run over the values 1, 3 and 5. Please make sure to change the conditional statement to the range mentioned above as well as to mark the "end" of the for loop in your code. In your case the value of “n” will be 33. You may find more information regarding the same here: https://in.mathworks.com/help/matlab/ref/for.html

Hope this helps!