Fuel-cell humidifying drum humidifying balance stable control device
A stable control device and fuel cell technology, applied in the direction of fuel cell control, fuel cells, fuel cell additives, etc., can solve the problems of performance degradation, poor interchangeability, permanent damage, etc., and achieve stable balance and strong anti-interference performance Effect
Active Publication Date: 2007-06-13
SHANGHAI MUNICIPAL ELECTRIC POWER CO +1
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Problems solved by technology
The humidification performance of the fuel cell humidification drum is poor in consistency. When replacing the humidification drum, the parameters of the controller must be readjusted, and the interchangeability is poor.
The long-term stable operation of the fuel cell cannot be guaranteed, and the alarm protection cannot be recognized when the humidification drum fails
Humidification drum speed deviates from the set required speed for a long time will cause the failure of fuel cell engine humidity control, and lead to performance degradation, and even permanent damage
Method used
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Embodiment Construction
[0025] Referring to Fig. 1, the present invention is a fuel cell humidification drum humidification balance and stability control device in a 50 kilowatt fuel cell engine, including a turntable U4, a speed sensor U3, a single-chip microcomputer U1, a speed control and a power amplifier U2, a humidification drum motor M1 and Communication interface U5. The turntable U4 is installed on the main shaft of the humidifying drum motor M1. The turntable can be a metal turntable with multiple teeth (used in conjunction with a proximity switch), or a turntable with a plurality of magnets (used in conjunction with a Hall switch). ), it can also be a porous disc (used in conjunction with a photoelectric switch). The speed sensor U3 is arranged near the turntable U4. The speed sensor U3 includes an inductive switch and a photocoupler. The inductive switch can be a proximity switch, a photoelectric switch or a Hall switch. One end of the sensor switch is close to the turntable. The input t...
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The control device includes turntable, speed sensor, single chip, speed control and power amplifier, motor for humidification drum, and communication interface. The turntable is installed on principal axis of motor for humidification drum. The speed sensor is setup on area of sensing rotate speed on the turntable. The input end of single chip is connected to the speed sensor, and the output of the single chip is connected to speed control and power amplifier, and communication interface respectively. The output end of the speed control and power amplifier connects motor for humidification drum. The control device can correct the control parameters of humidification motor automatically, and control rotate speed, stabilize balance of air humidity inside fuel cell engine. Insulating input signals from output signals, the device provide high anti-interference ability, which plays important effect for guaranteeing long stable operation of fuel cell.
Description
technical field [0001] The invention relates to a fuel cell, in particular to a humidification balance and stability control device for a fuel cell humidification drum. Background technique [0002] A fuel cell is a device that converts the chemical energy generated during the electrochemical reaction of fuel and oxidant into electrical energy. The core component of the device is the membrane electrode (Membrane Electrode Assembly, referred to as MEA). The membrane electrode is composed of a proton exchange membrane and two conductive porous diffusion materials (such as carbon paper) sandwiched on both sides of the membrane. A finely dispersed catalyst (such as metal platinum) that can initiate an electrochemical reaction is evenly distributed on the two boundary surfaces that are in contact with the conductive material. On both sides of the membrane electrode, the electrons generated during the electrochemical reaction are drawn out through the external circuit with conduc...
Claims
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IPC IPC(8): H01M8/04G05D22/00H01M8/04119H01M8/04298H01M8/04492
CPCY02E60/50
Inventor 付明竹鲍军辉郭磊胡里清
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO