KYC_Korea's profile - activity

Thank you. I tried ENTRY TA(MC,ISLOT) and it worked fine. Have a great day

PSSE models require the STATE to be stabilized at initialization (DSTATE=0)

The 4th STATE (=K+3) of the CBEST is the 'Energy Output'.

If the CBEST has an initial output, there will be an Energy change because the CBEST's output is not zero initially. As a result, the STATE is not constant and DSTATE is not zero.

Your error message probably looks like this below

i dstate(i) state(i) model state bus# x-- name --x baskv id

num 0.2000 0.0000 CBEST K+3 busnum busname basekv id

Please refer to the link below https://psspy.org/psse-help-forum/que... Hope this helps you.

I created a UDM "AA", but I get an error as shown below twice.

BUS 1 [NAME] MC 1 USER DEFINED MACHINE MODEL "TA" NOT ACCESSIBLE BUS 1 [NAME] MC 1 USER DEFINED MACHINE MODEL "TA" NOT ACCESSIBLE

Do you know what is problem?

I also got an error during compilation like below, but the .dll was created.

Microsoft (R) Windows (R) Resource Compiler Version 10.0.10011.16384 Copyright (C) Microsoft Corporation. All rights reserved. Creating C:\Users\ex.pssenvmgr\YCKim_GFM.res C:\Users\ex.pssenvmgr\TA.rc(16) : fatal error RC1015: cannot open include file 'afxres.h'. Using codepage 949 as default

ERROR compiling resource file C:\Users\ex.pssenvmgr\TA.rc. Version will not be added to DLL.

Is this a problem?

DLL is loaded correctly, and if I initialize it without loading it, I get an error message like the one below.

BUS 1 [NAME] MC 1 USER DEFINED MACHINE MODEL "TA" NOT ACCESSIBLE BUS 1 [NAME] MC 1 USER DEFINED MACHINE MODEL "TA" NOT ACCESSIBLE BUS 1 [NAME] MC 1 USER DEFINED MACHINE MODEL "AA" NOT ACCESSIBLE

What's wrong?

In my opinion, there are two possible reasons for this

First, it could be due to the different number of iterations it took for the PF calculation to converge. When the PF calculation converges, a message like "Reached tolerance in 10 iterations" is output, which means the number of iterations it took for the PF calculation to converge. The larger this number of iterations is, the more time the calculation can take.

Secondly, there may be more overloading and it took a long time to save it as an excel file. I recommend checking the capacity of your excel file.

Alternatively, use psspy.pssehalt_2() to completely shut down psse and then use psspy.psseinit(150000)

I hope this helps in some way.

I'm asking seniors for help.

I want to make generator model, but I can't find any example code for a generator model. I've tried many things, but it's hard to make... Also, the use of 'DO, IF, and ELSEIF' in FLECS was not what I expected. If you have an API, please let me know

Thanks your interest and feedback.

I recommend reading jconto's post, which I refer to a lot

Inertia of a Power System

I'll correct it. ESSG has 100MW of output. Therefore, Dstate of energy ouput = 100MW(output)/100MW(SBASE)*1.1(output efficiency)=1.1(p.u.). Since Dstate is not zero, print INITIAL CONDITIONS SUSPECT.

As this is a model problem, it seems safe to ignore it,. if it is concerned, it is recommended to use the ESS model reflecting SOC. See "how to model battery energy storage in load flow and cbest modelling?" for details.

This is a problem caused by the initial output of the ESS not being 0MW. K+3 of the CBEST model means Energy Ouput. I think ESSG has 110MW of output. Therefore, SOC fluctuations occur, and the CBEST model recognizes them as INITIAL CONDITIONS SUSPECT.