POWER CONVERTING APPARATUS FOR FUEL CELL AND METHOD THEREOF
First Claim
Patent Images
1. A power converting apparatus for a fuel cell, comprising:
- a converting unit for converting a DC voltage outputted from a fuel cell into a boosted or dropped AC voltage by being switched by a switching control signal; and
a controlling unit for comparing the detected AC voltage with a preset AC voltage, and outputting a switching control signal for controlling a switching of the converting unit on the basis of the comparison result
1 Assignment
0 Petitions
Accused Products
Abstract
A power converting apparatus for a fuel cell, and a method thereof. The power converting apparatus for a fuel cell comprises: a converting unit for converting a DC voltage outputted from a stack of a fuel cell into a boosted or dropped AC voltage by being switched by a switching control signal; and a controlling unit for comparing the detected AC voltage level with a preset AC voltage level, and outputting a switching control signal for controlling a switching of the converting unit on the basis of the comparison result
-
Citations
20 Claims
-
1. A power converting apparatus for a fuel cell, comprising:
-
a converting unit for converting a DC voltage outputted from a fuel cell into a boosted or dropped AC voltage by being switched by a switching control signal; and
a controlling unit for comparing the detected AC voltage with a preset AC voltage, and outputting a switching control signal for controlling a switching of the converting unit on the basis of the comparison result - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A power converting apparatus for a fuel cell that comprises a stack unit having an anode and a cathode and generating electric power by electrochemically reacting hydrogen and air, the apparatus comprising:
-
an impedance matching unit for matching an impedance of a power line of the fuel cell to an impedance of a substantial commercial power line;
a converting unit for converting a DC voltage inputted from the impedance matching unit into a boosted or dropped AC voltage by being switched by a switching control signal;
a filter for filtering an AC voltage outputted from the converting unit and thereby outputting an AC voltage of a sine wave;
a power detecting unit for detecting a level of an AC voltage outputted from the filter; and
a controlling unit for comparing the detected AC voltage level with a preset AC voltage level, and controlling a conversion of the DC voltage outputted from the fuel cell into an AC voltage on the basis of the comparison result.
-
-
15. A power converting method for a fuel cell, comprising:
-
detecting a level of an AC voltage outputted from a fuel cell; and
comparing the detected AC voltage level with a preset AC voltage level, and controlling a conversion of the AC voltage outputted from the fuel cell. - View Dependent Claims (16, 17, 18, 19, 20)
-
Specification