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4th February 2012, 19:18 #1
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4th February 2012, 21:19 #2
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Re: battery model in simulink matlab
The 1/u block is just the reciprocal: f(u) = 1/u.
The voltagevoltage block contains the nonlinear function between SOC (state of charge) and output voltage.
It depends on the battery type  may be something like: 1.2 + 0.1*SOC  0.01*SOC^2 etc...
Without accurate knowlegde of this block the model is useless.
P.S. Rts/Cts and Rtl/Ctl model short and long constant transientsLast edited by dave9000; 4th February 2012 at 21:39.
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4th February 2012, 21:19

5th February 2012, 05:33 #3
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Re: battery model in simulink matlab
thanks for replying.. :)
I m not sure about the details of the model given in the paper .. some data seems to be missing but i m unable to figure out how to proceed can u plz help me.. to knw whether this paper can be implemented without the practical values.. thanks a lot..
p.s link: http://power.ece.drexel.edu/Students...%20Testbed.pdf
my request seems to be silly but plzz help me.. i dnt knw how to procedd in designing a battery model in matlab for hybris system applicaitons... thanks a lot..

5th February 2012, 09:07 #4
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Re: battery model in simulink matlab
It's a good paper. You can find most of the data that you need from the graphs!
For example you find: Rts, Cts, Rtl, Ctl, full charge Vout, etc...
Start with a first order model (Vout=4.1alpha1*SOC) and find a good alpha1 from the simulations (match some discharge plot)...

5th February 2012, 09:07

5th February 2012, 09:17 #5
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11th May 2012, 10:06 #6
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Re: battery model in simulink matlab
sorry for the bump, but I have the exact same problem. @chd123 did you manage to simulate the model after all? Some help would be nice..I found the relation between the VOC and SOC from another paper, but when I simulate this the current is zero so everything is zero.. any ideas?
Thx in advance..

2nd August 2012, 04:16 #7
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Re: battery model in simulink matlab
hi, i'm using simulink R2010a which has a battery in the library. I'm working on a grid energy storage model where the storage model control system is meant to check the network voltage (p.u) and then do one of the following;
1] discharge the battery if the voltage is low i.e. below a specified limit of say 0.94 or
2] charge the battery if the voltage is high i.e. above a specified limit of say 0.97 so as to restore the voltage between the predefined limits or
3] take no action
Could i get some help in designing the system. thanx

15th February 2013, 13:47 #8
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Re: battery model in simulink matlab
HI hope you are well,
why do not use the model provided by Matlab, i do not understand why you are trying to develop your own model, see you can implement the simuklink model from the Matlab without being worried about the battery model,

15th February 2013, 13:47

7th April 2013, 20:17 #9
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