parkjaemin

https://sourceforge.net/p/electricdss/code/HEAD/tree/trunk/Version8/Source/PDElements/Transformer.pas 1) In here, i could find Y_1Volt_NL. This mean that is it created differently from the existing Y_1Volt when there is no load? 2) And I've already been looking at it using Dump transformer. debug, but I know Yw and Iw in Iw=YwVw, and it was verified through OpenDSS's debug. However, since I don't know exactly what Vw is, I can't get Iw with Yw and Vw. What other alternatives are there in this ca...

Can i know the Vw in the OpenDSS software? I showed your paper(An Example of 3-phase Transformer Modeling for Distribution system analysis) and these days i am testing about winding current. 1) In your paper, i could find the formula (Iw=YwVw) and can i know Vw in the OpenDSS? 2) if no load system and simple two port system, secondary voltage's pu value is 1 pu. In this situation, how can i caluculate Iw? Because Iw=YwVw Vw is 1 pu so i think Iw result is so big. thank you.

Thanks for your help. And this command (? Transformer.xxx.WdgCurrents) also thank you so much. But, i want to calculate winding current to learn about how can the winding current get it. So, i saw your paper (An Example of 3-phase Transformer Modeling for Distribution system Analysis) and i could learn the formula (Iw=YwVw). And i used this OpenDSS Code. %r=0.5 and xhl=6. So, i could check and compare with MATLAB (ZB, Y_OneVolt, Y_Terminal in the OpenDSS software). All of the Value is same. clear...

Thank you, but i want to know how can calculation winding current, and i stuied your paper. So now, i am in the process of testing to find the winding current in the way you wrote in your paper(An Example of 3-phase Transformer Modeling for Distribution system Analysis). The results below are the results of OpenDSS, and I can get all of the following results through MATLAB. However, if the winding voltage (Wye-Delta connection) obtained in OpenDSS is multiplied by Yw, the value does not match with...

I have a question. By using OpenDSS Comand, i can control data in the MATLAB COM like this(WdgCurrents). DSSXfmr = DSSCircuit.Transformers; % Activates the first transformer on the list j = DSSXfmr.First; % Get the currents on each winding (complex) myCurrents = DSSXfmr.WdgCurrents; And, can i get the WdgVoltage like this way in the MATLAB COM?

Hi, Roger Dugan. I have a question about 3-phase Transformer modeling in OpenDSS. Before i ask this question, i already showed your paper(An Example of 3-phase Transformer Modeling for Distribution system Analysis). And in this paper, it is introduced Yw relates the winding current, Iw and the winding voltage Vw. So, it can express like Iw=YwVw. I can make Yw and i wanna get Vw to get Iw. In this point Vw , is it right Vw the winding voltage that can be viewed with the command of "Show Voltage LL...

Hi, Roger Dugan. I have a question about 3-phase Transformer modeling in OpenDSS. Before i ask this question, i already showed your paper(An Example of 3-phase Transformer Modeling for Distribution system Analysis). And in this paper, it is introduced Yw relates the winding current, Iw and the winding voltage Vw. So, it can express like Iw=YwVw. I can make Yw and i wanna get Vw to get Iw. In this point Vw , is it right Vw the winding voltage that can be viewed with the command of "Show Voltage LL...

Thank you so much. After your answer, I looked for your paper. And while understanding the equation attached above, there is something I do not know, so I ask some questions. Matrix B has 1, -1, 0 elements in the form (m by m-1). But can you explain more detailly what the shape is, using three phase Delta connection (or wye-delta connection) as an example? Looking at the Newton-Rabson method, Ybus=transpose(C)YprC. Here, Ypr is a primitive matrix. Should Ypirm in your paper be understood as Ypr above?...