I have a multi machine power system, and I had to simulate it by solving differential equations of the whole system in simulink, but the speed of the simulation is very low, how can I do this simulation in less time?
i have the same problem with MR Damper model, they advise me to disable all zero crossings in Configuration Parameters, so try to do that ! for me it did not work but my be it will work for you
Do you use a Parallel Computing Toolbox?
Here you have some tips:
http://www.mathworks.com/parallel-computing/optimize-simulation-performance.html
http://www.mathworks.com/help/simulink/manual-performance-optimization.html
You can use also the Performance Advisor:
http://www.mathworks.com/help/simulink/slref/performanceadvisor.html
I am runing Windows 7 on my Laptop, and try to run my smulation on the university super computer same problem
I have 4 GO RAMMATLAB 2012
Windows 7
did you try disable all zero crossings in Configuration Parameters ?
yes, i have disabled zero crossing in configuration parameter,but unfortunately does not work,
my system data, win 8, 64bit, 4G ram, Cori5.
i think we can solve our model equations using m.file and Ode45 command, it is a little complex but does work well,
Wherever possible, try to do mathematical modelling of the components. It will help you
First, try to use different solvers, both continuous and discrete, variable step and fixed step. Imprtant question is an aim of the simulation. If it`s electromechanical process but not electromagnetic - use "phasor" type of solving. Another good trick is using R-shunts added to generator`s terminals (like small load). Also, R-shunt in parallel with "fault" simulink block may increase simulation speed.
Run simulation in discrete mode,by default it is in continuous mode.
Hi
Have you made sure that you don't have any algebraic loop. (http://ww2.distek.com/casestudy/simulink-tip/)
If you have transmission lines, you can replace them by lines with a delay decoupling the system
If you are using SimPowerSystems, adding a large resistance in shunt with the machine would also help.
LA
Dear Sandeep, if fixed step size is chosen, is it essential that all the components should have a same sample time? I am asking this becoz I was trying to simulate my work in fixed mode but it gave lot of errors.
Hi,
Run your simulation using Euler solver method (ode1) and fixed-step.
Good luck.
you can use the Discrete mode for solving the problem..Also selecting the appropriate initial value for each block can be useful..
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