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2014-01-14 02:27:30 -0500 | answered a question | PSSE injected current differs from injected power Yes, but in the line where I'm monitoring the power flow (P and Q) I only have connected in one side the inverter and at the another one a GENCLS generator and a load, both simulating the grid. (I can't upload any picture due to I don't have "karma" enough...) So the line flow means what is injecting the inverter. Besides, I've alse monitores Pelec and Qelec (arrays from the inverter) and they contain the same values as the Power Flow values. The bus "Grid" is defined as the swing bus and the bus "inverter" is defined as a generator bus, but when I make the conversion for dynamic simulation, both buses are generator bus. Concluding, my scheme only has 2 buses, 1 line, 2 generator (inverter and GENCLS) and 1 load. Regarding the first question, you're right, it has no sense that if I'm ordering from the control a real current = 0, the inverter is injecting P different from 0... So I think that the generator module doesn't recognize the WIPCMD1 and WIQCMD1 arrays as inputs (but I can not modify them because are standards modules from PSS/E and in other times it works perfectly..). The values of those arrays are OK because I can monitor them from my control module and, for example, in the previous case I obtain WIPCMD1=0 if order P=0, but I think that the generator module does recognize WIPCMD different from 0... I don't know why... |
2014-01-11 11:45:14 -0500 | asked a question | PSSE injected current differs from injected power I'm checking some dynamics simulation about Wind Turbine models in PSS/E. If the output variables from the generator model WT3G1 are (because I have defined them previously): Ixinj=0 (Real component of the injected current) Iyinj=0 (Reactive component of the injected current) Why the Real Power P and Reactive Power Q from Line Quantities CHAN are quite different than 0? It supposes that I wouldn't injecting power, since the current is 0. If I vary the Ixinj and Iyinj to a non zero value, the 2 previous injected power don't vary, they have the same value all the time and I think that these values come from the Power Flow. Any idea about this? Thanks Best regards |
2014-01-09 16:55:14 -0500 | commented question | PSS/E-FORTRAN_sharing variables between modules I'm new creating plant-related models. I thought that, in this case, the connection of the variables would only be done inside this model. So it is necessary to create also a CONEC model? If it's, should I write only the CALL statements + variable connections or something else? Thank you very much. |
2014-01-09 13:01:27 -0500 | asked a question | PSS/E-FORTRAN_sharing variables between modules Hi, Im trying to connect two modules in PSS/E by FORTRAN language (control module and generator module of an inverter). The 2 outputs of the control module(say VAR(L) and VAR(L+1)) are the 2 inputs of the generator module (which is encrypted)(WIPCMD and WIQCMD which are dynamic simulation arrays) but I am not be able to do this connection. At the beggining of my control module I write USE [generatormodule] so as I have available all the variables of the generator module. With the .flx file I compile the [generatormodule].mod too. My control model has from MODE 1 to 4 and at the end of MODE 3 (just before the 'return') I write: Being MC the machine index where apply this plant-related control model. I don't know if the previous logic is correct, any idea? Regards |