Activity for Durga Aryal
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Durga Aryal posted a comment on discussion Open Discussion
It was around 0.7. I got you, I read the manual and found how OpenDSS works. Thank you very much Roger.
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You are right. Although I defined the resistance explicitly to zero, the sources were not sending the total power of 2 GW. But now setting vminpu to zero in load, everything is fine. Thank you so much Roger, I really appreciate your help.
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I am sorry, it was reactance. The resistance for the circuit is zero. You are right if I lower the load value everything is fine. The problem was because of low voltage at load due to heavy loading condition.
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Since there are two sources in the circuit, so at first I tried to build the circuit considering generator as one source but later I found that we can put more than one voltage source, after reading the forum. Then I commented out the generator and kept another source in the circuit. . The resistance for the circuit is 0.17424 ohms, so I didnot define length as default value is one and resistance is ohms per unit length so finally it will give the resistance 0.17424 Ohms. No it is just the test case,...
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Hi everyone, I was trying to build the ciruit with loop in OpenDSS as given below. The circuit has two sources in it, the problem is that I am using the load that draws 2 GW power but the sources are giving total of 1.6 GW power. Can you please see my circuit and tell me where is the problem? ! OPENDSS CIRCUIT 1 clear !Slack bus New object=circuit.Ckt1 ~ basekv=13.2 pu=1.0 phases = 3 Isc3 = 30000000000 Isc1=10000000 bus1=bus1 new Vsource.source2 basekv=13.2 pu=1.0 phases =3 Isc3 = 30000000000 Isc1=10000000...
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That means if we do set totaltime = 0, then it will give the time to run a circuit for a single time? But I did not find huge difference setting a totaltime to zero.
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Thank you Davis, the thing that is making me confused is, when we are doing time-series that means solving the same circuit for suppose 65 loading conditions, then total time will give the time for solving that circuit 65 times or just a single time?
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Hi everyone, In case of time-series simulation when I do 'get totaltime', OpenDSS will give me the time. I am confused that ,it is the time for just the last run or the total time to run whole time-series? Please help!! Thank you, Durga
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Hi everyone, I am trying to model the loop circuit in OpenDSS, I wanted to know if I have modeled it correctly or not? I have attached the circuit model and pasted the script code for circuit in OpenDSS. Please help me!! ! OPENDSS CIRCUIT 1 clear !Slack bus New object=circuit.Ckt1 ~ basekv=13.2 pu=1.0 MVAsc3=100000000 MVAsc1=100000000 bus1=Bus1 ! define generator New Generator.G2 Bus1=Bus2 kV=13.2 kW=2000000 Model=3 Vpu=1.0 Maxkvar=500000 !Minkvar=-4000 ! kvar=50000 ! define the lines New line.line1...
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Thank you Narayan!!
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Results from your code.
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Thank you Davis. Actually, I was trying to do time series simulation after adding PV(photovoltaic) in the system. My previous script worked when I changed the mode daily to duty. The code provided you also worked but 3600 values of voltages from your code are different from 3600 values from my code. I am not understanding why these differences are occuring. I have attached excel spreadsheet file for both codes.
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Thank you Davis. I encountered another problem, for some reason, monitor points are showing same value of voltages for all other 3599 points except the first one. It should give different value of voltages corresponding to different values of power for PV generator. I tried to figure out this problem but could not come up with the solution. Can you please suggest me through this? Sincerely, Durga
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Hi Davis, I corrected my mistakes but now it is saying that 'PV_Loadshape.csv' file does not exist when it is in the same folder as the circuit. I have posted script command as well as csv file here. Please help me to sort this out. clear !Slack bus ! Set datapath =C:\Users\Dusu\Desktop New object=circuit.myckt2 ~ basekv=13.2 pu=1.0 MVAsc3=100000000 MVAsc1=100000000 bus1=Bus1 ! define the lines New line.line1 Bus1=Bus1 Bus2=Bus2 R1=2.5 X1=6.0 R0=2.5 X0=6 ! Length=31680 units=ft New line.line2 Bus1=Bus2...
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Thank you so much Davis!
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Hi Roger, I tried to add PV in the system I created, but it is showing error saying PV_Loadshape is not found. I have posted the code I wrote with integration of PV. Please help me figure out this problem. clear !Slack bus Set datapath = C:\Users\Dusu\Desktop\OpenDSS_docs New object=circuit.myckt2 ~ basekv=13.2 pu=1.0 MVAsc3=100000000 MVAsc1=100000000 bus1=Bus1 ! define the lines New line.line1 Bus1=Bus1 Bus2=Bus2 R1=2.5 X1=6.0 R0=2.5 X0=6 ! Length=31680 units=ft New line.line2 Bus1=Bus2 Bus2=Bus3...
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Thank you so much for your help Mr. Roger. I could not merge circuits succesfully, every time it prints the result set only for one of the circuits but not for all the circuits that were merged. Another thing, how can we choose between two solution techniques, normal current injection method and Newton method?
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Hello everyone, I am trying to do time and voltage analysis by merging two circuits. The problem is, it is showing the voltages for a single circuit rather than the merged circuit. Also, the total time to solve the merged circuit is less than the time to solve single circuit. I think it is giving the time to solve single circuit. I am wondering if there is any specific way to merge two circuits because I just simply did copy and paste options to merge two IEEE circuits. Also, I noticed large variation...
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Hello everyone, I am trying to do time and voltage analysis by merging two circuits. The problem is, it is showing the voltages for a single circuit rather than the merged circuit. Also, the total time to solve the merged circuit is less than the time to solve single circuit. I think it is giving the time to solve single circuit. I am wondering if there is any specific way to merge two circuits because I just simply did copy and paste options to merge two IEEE circuits. Please help, thank you!
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Hi everyone, I am trying to set the convergence tolerance for voltage and current. I found that set tolerance command sets solution tolerance, so it is power flow solution tolerance?
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Thank you so much Roger.
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Thank you so much Roger. How can we change the number of iterations and tolerance limit for power flow solution in OpenDSS? Thanks, Durga
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Hi everyone, Yes, I found that we can merge the circuits but, I was surprised by the results for time taken to solve the power flow. When I merged two IEEE circuits and ran power flow, I found that time taken to solve power flow in merged system is less than that of individual systems. Should that be okay? Thank you very much for your kind cosideration and support.
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Thank you very much. Finally it worked. Another thing, can we merge two circuits in a single system and run simulation in OpenDSS? Regards, Durga
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Thank you. I am trying to get the execution time for built in test cases ( IEEE 123 bus system and IEEE 30 bus system) . For that, at first I copied those files in seperate folder to edit them. To get execution time, I wrote the command as per you in master.dss file but I am not able to get the results for execution time. I am not sure if I am doing the things correctly?
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Hi everyone, Can we find, time taken for power flow analysis in OpenDSS system, because I am trying to do the execution time comparision between OpenDSS and other distribution system simulator?
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Thank you very much Davis. When I do get time, it is showing [ 0, 0 ] !... 0 (hours). When I do get secs, it is saying unknown parameter for get command. I am trying to write the command in already build test cases i.e. IEEE 123 bus system. I think I am doing something wrong, can you please guide me?
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Hello everyone, How can I get the simulation time for power flow in OpenDSS system? Can anyone please, writre the syntax to get simulation time? I am trying to get simulation times for IEEE 30 bus and IEEE123 bus standard models. I am new to OpenDSS, so please help me!
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