Idea needed to charge ultracapacitor by generator

Discussion in 'The Projects Forum' started by naila86, Dec 13, 2010.

  1. naila86

    Thread Starter New Member

    Dec 13, 2010
    Greetings [​IMG]

    I need to connect Ultracapacitors with a DC generator with an Output of almost 3 KW. These are the specifications as written on the generator:
    Nominal 48 (52.5V, 53.3A) or 36V (39.5V, 70.8A)
    The concept is that, the generator is supposed to charge the ultracapacitor and the energy shall be stored in it. At the time when energy is needed, it can be retrieved from the capacitors. Also in parallel to the capacitors i'm thinking about connecting Lithium Ion battery so that it will facilitate more charge storage and better efficiency. But before this I need to focus on the ultracapacitors.
    Can anyone please provide me a kick-off idea to start this project. How to know the rating of capacitors? Any connection diagram available that can be followed?

    I have never worked with ultracapacitors. But I'm sure that the capacitors always discharge with a curve decreasing with time. So how would an ultracapacitor here will store energy of the generator and in need will provide a smooth output without the being effected by time?

    Thanks a lot!
  2. tyblu

    Active Member

    Nov 29, 2010
  3. blueroomelectronics

    AAC Fanatic!

    Jul 22, 2007
    How long do you expect a supercap to last at 3kW? A nanosecond? Are you trying to build a UPS?
  4. thatoneguy

    AAC Fanatic!

    Feb 19, 2009
    This sounds like a wind power project, batteries would be much better suited for the task, capacitors, even super caps do not supply the amount of power that a battery the same size is capable of.