Have you tried turning on OPF soft limits to see if it is a feasibility issue?
Ray
On Apr 30, 2025, at 4:34 AM, Muhammad Usama Waqar <[email protected]>
wrote:
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Muhammad Usama Waqar <[email protected]<mailto:[email protected]>>
[Attachments]Tue, Apr 29, 3:11 PM (1 day ago)
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to MATPOWER-L
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Hi,
I have a set of 118 Bus modified data having 327 generator( including high
numbers of renewables) , I will be thankful if you could be able to run optimal
power flow (runopf) using precise cost values as i have tried to run with
piecewise linear value of cost and polynomial data but it does not converges (
it does converge for simple power flow but not for optimal)
The method i used to convert heat rate and fuel rate to find out cost data is
explained as follows
The NREL118 bus data file has a heat rate base and heat rate increment (
BTU/KWh ), fuel price ( $ / MMBTU ) , startup cost ($) , variable operation
and maintenance charges ($/kwh)
In matpower cost inputs used are:
Piecewise - Converting this data into f,p form where f is in $/hr , p is in
MW form
Polynomial form - taking average cost by converting piecewise data to polynomial
Input file attached
Engr. Muhammad Usama Waqar
MS Electrical Power | BS Electrical Power | Research Scholar
National University of Sciences and Technology Islamabad
Ph# 03004195176
Email : [email protected]<mailto:[email protected]>
<NREL-118-Bus-Master.xlsx>
