Monitoring system for fuel cell stack
First Claim
1. A monitoring system for a fuel cell stack having a plurality of fuel cell units, comprising:
- a monitor device comprising a plurality of monitoring sensors adapted for electrically connecting to said fuel cell units of said fuel cell stack respectively, wherein said monitor device is adapted for measuring an voltage of each of said fuel cell units when said two corresponding neighboring monitoring switches are switched on; and
an alert controller, which is electrically connected to said monitor device, comprising a switch control sequentially switching each said two neighboring monitoring sensors for reading said output voltage of said respective fuel cell unit, and an alert device arranged in such a manner that when said voltage of said respective fuel cell unit falls within a safety range, said switch control continuously switches on another two neighboring monitoring sensors for reading said voltage of said subsequent fuel cell unit until said voltage of said last fuel cell unit is read, and when said voltage of said respective fuel cell unit is out of said safety range, said alert device generates an alert signal for indicating an abnormal operation of said respective fuel cell unit of said fuel cell stack.
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Abstract
A monitoring system includes a plurality of monitoring sensors for electrically connecting to fuel cell units of a fuel cell stack respectively, wherein a voltage of each of the fuel cell units is measured when two corresponding neighboring monitoring sensors are switched on. An alert controller includes a switch control sequentially switching each two neighboring monitoring sensors, and an alert device arranged when the voltage of the respective fuel cell unit is within a safety range, the switch control continuously switches on another two neighboring monitoring sensors until the voltage of the last fuel cell unit is read, and when the voltage of the respective fuel cell unit is out of the safety range, the alert device generates an alert signal for indicating an abnormal operation of the respective fuel cell unit of the fuel cell stack.
15 Citations
20 Claims
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1. A monitoring system for a fuel cell stack having a plurality of fuel cell units, comprising:
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a monitor device comprising a plurality of monitoring sensors adapted for electrically connecting to said fuel cell units of said fuel cell stack respectively, wherein said monitor device is adapted for measuring an voltage of each of said fuel cell units when said two corresponding neighboring monitoring switches are switched on; and
an alert controller, which is electrically connected to said monitor device, comprising a switch control sequentially switching each said two neighboring monitoring sensors for reading said output voltage of said respective fuel cell unit, and an alert device arranged in such a manner that when said voltage of said respective fuel cell unit falls within a safety range, said switch control continuously switches on another two neighboring monitoring sensors for reading said voltage of said subsequent fuel cell unit until said voltage of said last fuel cell unit is read, and when said voltage of said respective fuel cell unit is out of said safety range, said alert device generates an alert signal for indicating an abnormal operation of said respective fuel cell unit of said fuel cell stack. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of monitoring a fuel cell stack having a plurality of fuel cell units, comprising said steps of:
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(a) communicatively connecting a plurality of monitoring sensors to said fuel cell units of said fuel cell stack respectively, (b) sequentially switching each said two neighboring monitoring sensors for reading an voltage of said respective fuel cell unit so as to collect said voltage of said fuel cell units;
(c) diagnosing said voltages of said fuel cell units, wherein when said voltage of said respective fuel cell unit is within a safety range, another two neighboring monitoring sensors are continuously switched on for reading said voltage of said subsequent fuel cell unit until said voltage of said last fuel cell unit is read; and
(d) generating an alert signal for indicating an abnormal operation of said respective fuel cell unit of said fuel cell stack when said voltage of said respective fuel cell unit is out of said safety range. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification