Re-generation of electricity

Discussion in 'OnBoard Electronics & Controls' started by BertKu, Apr 9, 2017.

  1. BertKu
    Joined: May 2009
    Posts: 2,498
    Likes: 43, Points: 58, Legacy Rep: 223
    Location: South Africa Little Brak River

    BertKu Senior Member

    I am struggling with a good method to re-generate electricity to a 24 Volt battery system while sailing. I am not sailing with a sail at present, the modifications are not yet finished in its total, but sail only only with the 1 Kw motor. I looked at the https://www.google.com/patents/EP0633156A1?cl=en and it does not suit a brushless motor. The problem is that the motor turns never the same speed during sailing as when powered by batteries/controller.
    I estimate only 1/3 of the speed in my case. i.e. maybe 8 Volts. How is it done by OceanVolt in Finland? They claim that their brushless motors re-generate electricity and charge the batteries. Anybody having a circuit diagram? Bert
     
  2. CDK
    Joined: Aug 2007
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    Location: Adriatic sea

    CDK retired engineer

    The answer would be a switch mode inverter and some logic to make sure the circuit only operates when no current flows from the controller to the motor.
     
  3. BertKu
    Joined: May 2009
    Posts: 2,498
    Likes: 43, Points: 58, Legacy Rep: 223
    Location: South Africa Little Brak River

    BertKu Senior Member

    Thank you CDK, yes you are right. In anyway I would place a manual change over switch and will not make it automatic. I probably go for multiplexing to 34 Volt and then charge the batteries via my existing electronics . I was hoping for somebody having a nice well thought out circuit. Bert
     

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    Last edited: Apr 10, 2017
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