symbolic dynamic models for highly varying power system loads
symbolic dynamic models for highly varying power system loads
symbolic dynamic models for highly varying power system loads
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78<br />
if isempty(mini_d)==1 %If no word begins with the %lastdigit start<br />
from the beginning.<br />
mini_d=d;<br />
mini_fr=fr;<br />
end<br />
mini_d; % words beginning with the last digit.<br />
mini_fr;<br />
% fractional occurances of the all words %beginning with<br />
the last digit.<br />
sumf=sum(mini_fr(:,1));<br />
mod_fr=mini_fr/sumf;<br />
wd=mini_d;<br />
wf=mod_fr;<br />
k=k+1;<br />
end<br />
seedword;<br />
fwl;<br />
result1=nonzeros(seedword(1,:));<br />
result2=nonzeros(seedword(2:kstop,2:nw)');<br />
result=[result1',result2']' % Forecasted signal in the <strong>for</strong>m % of a<br />
column matrix.<br />
A.4 Forecasting a signal using Model 2, case 1 (Load Modeling)<br />
Input to this program is historically recorded current data of<br />
electric arc furnace. Future value of current is predicted using model<br />
2, without updating the historical data set. The code is used <strong>for</strong> load<br />
modeling applications. 5000 data of EAF current are stored in a data<br />
file out of which 3000 data are used as a historical data set and 2000<br />
data are predicted and compared with the rest of the data.