Fuel cell device and method for feeding electrical current to electrical network

Fuel cell device and method for feeding electrical current to electrical network

  • CN 102,246,382 A
  • Filed: 12/01/2009
  • Published: 11/16/2011
  • Est. Priority Date: 12/09/2008
  • Status: Active Application
First Claim
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1. fuel-cell device that is used to produce the electric current of electrical network (125) is characterized in that at least one fuel-cell device (123) has been set to be parallel to electrical network (125), and this fuel-cell device comprises:

  • -power converter (122), it comprises control circuit (128) and current controlled power stage (124), be used for when described fuel-cell device has been parallel to electrical network to described electrical network input current, and described control circuit (128) is used to form the phase reference signal that will use when the described electric current of input-controllable load (126), it is used to keep the power stability of described fuel-cell device;

    -be used for when electrical network breaks down device (130) that described fuel-cell device and electrical network are disconnected,-described power converter (122) becomes described fuel-cell device the mode of operation that disconnects with electrical network by using described phase reference signal, to carry out the voltage controlled operation of described power converter (122), and described controllable load (126) is used to keep the power stability between other parts of controlled described power converter (122) of voltage and described fuel-cell device, and-when described fault disappeared from electrical network, described power converter (122) became the mode of operation of connecting with electrical network by using described phase reference signal with described fuel-cell device, to carry out the current controlled operation of described power converter (122).

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