+ Post New Thread
Results 1 to 2 of 2
  1. #1
    Newbie level 3
    Points: 1,262, Level: 8

    Join Date
    May 2012
    Posts
    5
    Helped
    0 / 0
    Points
    1,262
    Level
    8

    Simulink Model for charging battery

    greetings.
    I designed a model on simulink. a battery powers a motor.
    my question is :
    the battery discharges if the machine is in engine operation.
    if I enter a negative speed so generator operation, how to charge this battery by braking.
    cordially .

    •   AltAdvertisment

        
       

  2. #2
    Super Moderator
    Points: 50,449, Level: 54

    Join Date
    Apr 2011
    Location
    Minneapolis, Minnesota, USA
    Posts
    12,410
    Helped
    2464 / 2464
    Points
    50,449
    Level
    54

    Re: Simulink Model for charging battery

    A generator requires effort to crank so it provides current to a load. The greater the power output, the harder it is to turn the generator. I think that is the braking action.

    So you could aim the vehicle downhill and let it roll down the hill charging the battery. The wheels turn the motor which provides voltage. The vehicle's speed is slowed by braking action of the motor due to the force required to turn it.

    The principle is the same when charging a capacitor from a motor. Stop spinning the motor, and the capacitor continues to spin the motor for a while in the same direction as when it charged the capacitor.

    You do not need to reverse direction of the motor, nor reverse the wires between motor and battery. You do need to spin the motor fast enough to overcome battery voltage. Or else introduce a step-up converter.



--[[ ]]--