Re: Extremely Slow to Construct SCUC using MOST

2020-04-14 Thread Nguyễn Anh
Yes. Thanks sir Vào 2:25 Th 4, 15 thg 4 2020 Ray Daniel Zimmerman đã viết: > MATPOWER and MOST do not optimize capacitor banks or taps, so I assume you > have written your own algorithm for optimizing them. In that case, I’m > afraid I can’t offer any insight on how to improve your approach, but

Re: Extremely Slow to Construct SCUC using MOST

2020-04-14 Thread Ray Daniel Zimmerman
MATPOWER and MOST do not optimize capacitor banks or taps, so I assume you have written your own algorithm for optimizing them. In that case, I’m afraid I can’t offer any insight on how to improve your approach, but I don’t think the SCUC in MOST will be of any help for that. Ray On Apr 14

Re: Extremely Slow to Construct SCUC using MOST

2020-04-14 Thread Nguyễn Anh
Dear Sir sorry my english language is very poor I also do not understand how your SCUC is related to MOST. However, I am using algorithms to optimize Fuel cost case118 with the participation of capacitor banks and taps. I see the time running very slowly. For example, when I runopf ('case118'), the

Re: Extremely Slow to Construct SCUC using MOST

2020-04-14 Thread Ray Daniel Zimmerman
I suspect it is using a very different formulation of the problem that results in a much smaller problem size. MOST uses a very unique problem formulation, which has its advantages and disadvantages. Ray On Apr 14, 2020, at 10:17 AM, Steven G mailto:steven.geng.2...@gmail.com>> wrote: Dea

Re: Extremely Slow to Construct SCUC using MOST

2020-04-14 Thread Steven G
Dear Dr. Zimmerman, Thanks for the suggestion! I wrote my own python code to construct SCUC with contingencies, it was a lot faster (~seconds). Also I remember I wrote my own Matlab code for SCUC with contingencies (using YALMIP), it took 2~3 minute to construct a case like 118bus. I really don't k

Re: Extremely Slow to Construct SCUC using MOST

2020-04-06 Thread Ray Daniel Zimmerman
I am not surprised. By including 245 contingencies, you have made the problem 245 times larger. In general, given the problem formulation that MOST uses for handling contingencies, it is not practical to simply add a complete list of contingencies directly to the problem except for the very smal

Extremely Slow to Construct SCUC using MOST

2020-04-04 Thread Steven G
Dear Matpower users, I'm solving SCUC using MOST, but it was extremely slow to formulate the problem with contingency scenarios. For example, I'm running the following code (case_ACTIVSg200), it took more than 2 hours to formulate one instance of SCUC. Without contingencies, one SCUC is formulated