what are the reasons for power flow is completed in very short period (less than 1 second) and the graph is not comming?

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dhruvi patel 2018-9-27

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https://ww2.mathworks.cn/matlabcentral/answers/421027-what-are-the-reasons-for-power-flow-is-completed-in-very-short-period-less-than-1-second-and-the-g

评论： Walter Roberson 2021-4-4

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          Copyright (C) 2002-2014 Federico Milano
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PSAT comes with ABSOLUTELY NO WARRANTY; type 'gnuwarranty' for details. This is free software, and you are welcome to redistribute it under certain conditions; type 'gnulicense' for details.

Host: Matlab 8.1.0.604 (R2013a) Session: 30-Sep-2018 10:55:41 Usage: Graphical User Interface Path: C:\Program Files\MATLAB\R2013a\toolbox\psat\tests

Error using load Unable to read MAT-file C:\Program Files\MATLAB\R2013a\toolbox\psat\tests\system1.mdl: not a binary MAT-file. Try LOAD -ASCII to read as text.

Error in fm_set (line 348) load([pathname,file],'-mat')

Error while evaluating uicontrol Callback

Simulink Model Conversion Simulink File system1fault.mdl. Loading Simulink Model * * * Check model version and blocks ... * * All blocks belong to the PSAT-Simulink Library. * * * Statistics ... Connections: #9# Power Flow Components: #15# Faults & Breakers: #1# Machines: #3# * * * Definition of component data ... Data "Fault.con" Data "Bus.con" Data "Line.con" Data "PQ.con" Data "PV.con" Data "SW.con" Data "Syn.con" Data "Line.con" * * * Definition of system connections ... * * * Writing Data File Construction of Data File system1fault_mdl.m completed. Data file "C:\Program Files\MATLAB\R2013a\toolbox\psat\tests\system1fault(mdl)" set

Newton-Raphson Method for Power Flow Computation Data file "C:\Program Files\MATLAB\R2013a\toolbox\psat\tests\system1fault(mdl)" Voltage rate of Slack Bus #1 at Bus G1 BUS differs more than 10% from Bus voltage rate Voltage rate of PV Bus #1 at Bus G2 BUS differs more than 10% from Bus voltage rate Voltage rate of PV Bus #2 at Bus G3 BUS differs more than 10% from Bus voltage rate Voltage rate of PQ Bus #1 at Bus LOAD BUS B differs more than 10% from Bus voltage rate Voltage rate of PQ Bus #2 at Bus LOAD BUS C differs more than 10% from Bus voltage rate Voltage rate of PQ Bus #3 at Bus LOAD BUS A differs more than 10% from Bus voltage rate Tap ratio of transformer #7 from bus BUS to bus BUS differs more than 10% from the bases defined at connected buses. Tap ratio of transformer #8 from bus BUS to bus BUS differs more than 10% from the bases defined at connected buses. Tap ratio of transformer #9 from bus BUS to bus BUS differs more than 10% from the bases defined at connected buses. Voltage of Line #1 from bus BUS to bus BUS C differs more than 10% from the base defined at the connected bus BUS Voltage of Line #3 from bus BUS to bus BUS A differs more than 10% from the base defined at the connected bus BUS Voltage of Line #6 from bus BUS to bus BUS B differs more than 10% from the base defined at the connected bus BUS Voltage of Line #7 from bus BUS to bus BUS differs more than 10% from the base defined at the connected bus BUS Voltage of Line #8 from bus BUS to bus BUS differs more than 10% from the base defined at the connected bus BUS Voltage of Line #9 from bus BUS to bus BUS differs more than 10% from the base defined at the connected bus BUS Voltage rate of Fault #1 at Bus LOAD BUS A differs more than 10% from Bus voltage rate Voltage rate of Synchronous Machine #2 at Bus G1 BUS differs more than 10% from Bus voltage rate Writing file "fm_call" ... PF solver: Newton-Raphson method Single slack bus model Iteration = 1 Maximum Convergency Error = 1012.5951 Iteration = 2 Maximum Convergency Error = 2207.4126 Iteration = 3 Maximum Convergency Error = 1749160304.7746 Iteration = 4 Maximum Convergency Error = 134045474417.6818 Iteration = 5 Maximum Convergency Error = 1608111387.7758 The error is increasing too much. Convergence is likely not reachable. Initialization of Synchronous Machines completed. Power Flow completed in 1.082 s

Continuation Power Flow - Single Slack Bus Data file "C:\Program Files\MATLAB\R2013a\toolbox\psat\tests\system1fault(mdl)"

Corrector Method: Perpendicular Intersection Check Voltage Limits: No Check Generator Q Limits: No Check Flow Limits: No

 * Max # of iters. at corrector step.
 * Reduced Variable Increments in Corrector Step 0.5
Operands to the || and && operators must be convertible to logical scalar values.

Error in fm_cpf (line 551) if lambda > lambda_old && lambda < max(l_vect) && ~Hvdc.n

Error while evaluating uicontrol Callback

Dynamic components are not supported for static analysis

Continuation Power Flow - Single Slack Bus Data file "C:\Program Files\MATLAB\R2013a\toolbox\psat\tests\system1fault(mdl)"

Corrector Method: Perpendicular Intersection Check Voltage Limits: No Check Generator Q Limits: No Check Flow Limits: No

 * Max # of iters. at corrector step.
 * Reduced Variable Increments in Corrector Step 0.5
Operands to the || and && operators must be convertible to logical scalar values.

Error in fm_cpf (line 551) if lambda > lambda_old && lambda < max(l_vect) && ~Hvdc.n

Error while evaluating uicontrol Callback

Newton-Raphson Method for Power Flow Computation Data file "C:\Program Files\MATLAB\R2013a\toolbox\psat\tests\system1fault(mdl)" Voltage rate of Slack Bus #1 at Bus G1 BUS differs more than 10% from Bus voltage rate Voltage rate of PV Bus #1 at Bus G2 BUS differs more than 10% from Bus voltage rate Voltage rate of PV Bus #2 at Bus G3 BUS differs more than 10% from Bus voltage rate Voltage rate of PQ Bus #1 at Bus LOAD BUS B differs more than 10% from Bus voltage rate Voltage rate of PQ Bus #2 at Bus LOAD BUS C differs more than 10% from Bus voltage rate Voltage rate of PQ Bus #3 at Bus LOAD BUS A differs more than 10% from Bus voltage rate Tap ratio of transformer #7 from bus BUS to bus BUS differs more than 10% from the bases defined at connected buses. Tap ratio of transformer #8 from bus BUS to bus BUS differs more than 10% from the bases defined at connected buses. Tap ratio of transformer #9 from bus BUS to bus BUS differs more than 10% from the bases defined at connected buses. Voltage of Line #1 from bus BUS to bus BUS C differs more than 10% from the base defined at the connected bus BUS Voltage of Line #3 from bus BUS to bus BUS A differs more than 10% from the base defined at the connected bus BUS Voltage of Line #6 from bus BUS to bus BUS B differs more than 10% from the base defined at the connected bus BUS Voltage of Line #7 from bus BUS to bus BUS differs more than 10% from the base defined at the connected bus BUS Voltage of Line #8 from bus BUS to bus BUS differs more than 10% from the base defined at the connected bus BUS Voltage of Line #9 from bus BUS to bus BUS differs more than 10% from the base defined at the connected bus BUS Voltage rate of Fault #1 at Bus LOAD BUS A differs more than 10% from Bus voltage rate Voltage rate of Synchronous Machine #2 at Bus G1 BUS differs more than 10% from Bus voltage rate Writing file "fm_call" ... PF solver: Newton-Raphson method Single slack bus model Iteration = 1 Maximum Convergency Error = 1012.2139 Iteration = 2 Maximum Convergency Error = 2440.9057 Iteration = 3 Maximum Convergency Error = 1007876111.3747 Iteration = 4 Maximum Convergency Error = 371974.8361 Iteration = 5 Maximum Convergency Error = 319025.6289 Iteration = 6 Maximum Convergency Error = 604865.7609 Iteration = 7 Maximum Convergency Error = 71178.6145 Iteration = 8 Maximum Convergency Error = 48631.3528 Iteration = 9 Maximum Convergency Error = 3519046.1394 The error is increasing too much. Convergence is likely not reachable. Initialization of Synchronous Machines completed. Power Flow completed in 0.754 s

Time domain simulation Trapezoidal integration method Data file "C:\Program Files\MATLAB\R2013a\toolbox\psat\tests\system1fault(mdl)" No perturbation file set. * The option "Settings.forcepq" overwrites the option "Settings.pq2z". * All PQ loads will be forced to consume constant powers. Singularity likely. Simulation stopped at t = 0 s

Newton-Raphson Method for Power Flow Computation Data file "C:\Program Files\MATLAB\R2013a\toolbox\psat\tests\system1fault(mdl)" Voltage rate of Slack Bus #1 at Bus G1 BUS differs more than 10% from Bus voltage rate Voltage rate of PV Bus #1 at Bus G2 BUS differs more than 10% from Bus voltage rate Voltage rate of PV Bus #2 at Bus G3 BUS differs more than 10% from Bus voltage rate Voltage rate of PQ Bus #1 at Bus LOAD BUS B differs more than 10% from Bus voltage rate Voltage rate of PQ Bus #2 at Bus LOAD BUS C differs more than 10% from Bus voltage rate Voltage rate of PQ Bus #3 at Bus LOAD BUS A differs more than 10% from Bus voltage rate Tap ratio of transformer #7 from bus BUS to bus BUS differs more than 10% from the bases defined at connected buses. Tap ratio of transformer #8 from bus BUS to bus BUS differs more than 10% from the bases defined at connected buses. Tap ratio of transformer #9 from bus BUS to bus BUS differs more than 10% from the bases defined at connected buses. Voltage of Line #1 from bus BUS to bus BUS C differs more than 10% from the base defined at the connected bus BUS Voltage of Line #3 from bus BUS to bus BUS A differs more than 10% from the base defined at the connected bus BUS Voltage of Line #6 from bus BUS to bus BUS B differs more than 10% from the base defined at the connected bus BUS Voltage of Line #7 from bus BUS to bus BUS differs more than 10% from the base defined at the connected bus BUS Voltage of Line #8 from bus BUS to bus BUS differs more than 10% from the base defined at the connected bus BUS Voltage of Line #9 from bus BUS to bus BUS differs more than 10% from the base defined at the connected bus BUS Voltage rate of Fault #1 at Bus LOAD BUS A differs more than 10% from Bus voltage rate Voltage rate of Synchronous Machine #2 at Bus G1 BUS differs more than 10% from Bus voltage rate Writing file "fm_call" ... PF solver: Newton-Raphson method Single slack bus model Iteration = 1 Maximum Convergency Error = 1012.2139 Iteration = 2 Maximum Convergency Error = 2440.9057 Iteration = 3 Maximum Convergency Error = 1007876111.3747 Iteration = 4 Maximum Convergency Error = 371974.8361 Iteration = 5 Maximum Convergency Error = 319025.6289 Iteration = 6 Maximum Convergency Error = 604865.7609 Iteration = 7 Maximum Convergency Error = 71178.6145 Iteration = 8 Maximum Convergency Error = 48631.3528 Iteration = 9 Maximum Convergency Error = 3519046.1394 The error is increasing too much. Convergence is likely not reachable. Initialization of Synchronous Machines completed. Power Flow completed in 0.448 s Plotting Utilities: No data available for plotting. Plotting Utilities: No data available for plotting. Plotting Utilities: No data available for plotting.

Error using load Unable to read MAT-file C:\Program Files\MATLAB\R2013a\toolbox\psat\tests\system1fault.mdl: not a binary MAT-file. Try LOAD -ASCII to read as text.

Error in fm_set (line 348) load([pathname,file],'-mat')

Error while evaluating uicontrol Callback

Simulink Model Conversion Simulink File system1fault.mdl. Loading Simulink Model * * * Check model version and blocks ... * * All blocks belong to the PSAT-Simulink Library. * * * Statistics ... Connections: #9# Power Flow Components: #15# Faults & Breakers: #1# Machines: #3# * * * Definition of component data ... Data "Fault.con" Data "Bus.con" Data "Line.con" Data "PQ.con" Data "PV.con" Data "SW.con" Data "Syn.con" Data "Line.con" * * * Definition of system connections ... * * * Writing Data File Construction of Data File system1fault_mdl.m completed. Data file "C:\Program Files\MATLAB\R2013a\toolbox\psat\tests\system1fault(mdl)" set Solve base case power flow...

Newton-Raphson Method for Power Flow Computation Voltage rate of Slack Bus #1 at Bus G1 BUS differs more than 10% from Bus voltage rate Voltage rate of PV Bus #1 at Bus G2 BUS differs more than 10% from Bus voltage rate Voltage rate of PV Bus #2 at Bus G3 BUS differs more than 10% from Bus voltage rate Voltage rate of PQ Bus #1 at Bus LOAD BUS B differs more than 10% from Bus voltage rate Voltage rate of PQ Bus #2 at Bus LOAD BUS C differs more than 10% from Bus voltage rate Voltage rate of PQ Bus #3 at Bus LOAD BUS A differs more than 10% from Bus voltage rate Tap ratio of transformer #7 from bus BUS to bus BUS differs more than 10% from the bases defined at connected buses. Tap ratio of transformer #8 from bus BUS to bus BUS differs more than 10% from the bases defined at connected buses. Tap ratio of transformer #9 from bus BUS to bus BUS differs more than 10% from the bases defined at connected buses. Voltage of Line #1 from bus BUS to bus BUS C differs more than 10% from the base defined at the connected bus BUS Voltage of Line #3 from bus BUS to bus BUS A differs more than 10% from the base defined at the connected bus BUS Voltage of Line #6 from bus BUS to bus BUS B differs more than 10% from the base defined at the connected bus BUS Voltage of Line #7 from bus BUS to bus BUS differs more than 10% from the base defined at the connected bus BUS Voltage of Line #8 from bus BUS to bus BUS differs more than 10% from the base defined at the connected bus BUS Voltage of Line #9 from bus BUS to bus BUS differs more than 10% from the base defined at the connected bus BUS Voltage rate of Fault #1 at Bus LOAD BUS A differs more than 10% from Bus voltage rate Voltage rate of Synchronous Machine #2 at Bus G1 BUS differs more than 10% from Bus voltage rate PF solver: Newton-Raphson method Single slack bus model The error is increasing too much. Convergence is likely not reachable. Initialization of Synchronous Machines completed. Power Flow completed in 0.199 s

Time domain simulation Trapezoidal integration method Data file "C:\Program Files\MATLAB\R2013a\toolbox\psat\tests\system1fault(mdl)" No perturbation file set. * The option "Settings.forcepq" overwrites the option "Settings.pq2z". * All PQ loads will be forced to consume constant powers. Singularity likely. Simulation stopped at t = 0 s

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Walter Roberson 2021-4-4

Error using load Unable to read MAT-file C:\Program Files\MATLAB\R2013a\toolbox\psat\tests\system1.mdl: not a binary MAT-file. Try LOAD -ASCII to read as text.

You cannot load() a .mdl file. .mdl files are structured text (but not XML)

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