how to run the matlab simulink to charge the battery for long hour

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Sandhya K 2016-11-9

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回答： Grégory SEABRA 2016-11-14

i have to charge the battery for 4 hours, is it possible to run the simulation in matlab for such a long hour

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Frederico Marc 2016-11-14

编辑：Frederico Marc 2016-11-14

Hello, If you can allow time step to be 1s, for example, the answer is yes, it is possible. But if your time step must be much more shorter, I think things get complicated. It would take a very long time to complete simulation.

I've been wondering a similar question. The time step needed in my model is 3.91e-7s. Simulating many hours would be impractical. I'd like to scale 1 hour in some seconds of simulation, but for while I don't know how. I tried to change battery capacity but I got bad results.

If anyone has some ideas to overcome this, I would appreciate. Thanks.

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Answer 1

Grégory SEABRA 2016-11-14

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Hi,

are you using a power conveter? If yes, you might want to use an average model for a start, so you can get rid of the switching phenomena which are not relevant in your simulation.

Indeed, when simulating such a long time, you will not be interested in this type of dynamics, as you are willing to observe long-time behavior.

Furthermore, if your simulation in centered around the battery itself, you could also use a basic DC source. The system's stability (converter + battery) is to be tackled with short-time simulations.

It is always a trade-off between speed and accuracy, and thus the question to ask yourself is "What is really relevant to include in my simulations?"

Regards,

Greg