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Fuel cell standby power supply control system and method

A fuel cell and backup power technology, which is applied in the power network operating system integration, emergency power arrangement, information technology support system, etc., can solve the problems of insufficient use of fuel cells, waste of resources, etc., and achieve maintenance cycle and cost reduction and utilization. The effect of reducing the rate and reducing environmental pollution

Pending Publication Date: 2020-07-24
GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This design will lead to waste of resources, and fuel cells are not fully used, pollution still exists, and there is no significant change in work efficiency, resulting in waste of resources

Method used

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  • Fuel cell standby power supply control system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1: A fuel cell backup power supply control system.

[0022] Such as figure 1 As shown, a fuel cell backup power supply control system includes an AC power supply 7, a fuel cell backup power supply and a DC load 6, and the AC power supply 7, fuel cell backup power supply and DC load 6 are connected separately, and the fuel cell The battery backup power supply includes a starting module 2 and a fuel cell 1, a circuit breaker is arranged between the starting module 2 and the fuel cell 1, and the AC power supply 7 is separately connected to the starting module 2 and the fuel cell 1;

[0023] The fuel cell 1 includes a main control board 101, a fuel cell accessory 102, an electric stack 103 and a DC / DC power converter 104. The main control board 101 is connected to the starting module 2 through the circuit breaker. The control board 101, the fuel cell accessories 102, the electric stack 103 and the DC / DC power converter 104 are connected in sequence, and the DC / D...

Embodiment 2

[0034] Embodiment 2: A method for controlling a backup power source of a fuel cell.

[0035] Such as figure 2 As shown, a fuel cell backup power control method, using the fuel cell backup power control system as described in Embodiment 1, the specific steps are as follows:

[0036] By detecting the voltage of the AC bus bar, it is judged whether the current power supply is in the state of power supply or no power state, and different power supply modes are selected according to the power supply situation. The power supply 7 is charged, the AC relay 4 is closed, and the main control board 101 detects the amount of switch information. When it is detected that there is electricity, it indicates that the current system is normal, and it is enough to maintain the normal AC power supply 7 for power supply, and at the same time, the starting module 2 is charged for the subsequent backup power supply to start the power supply.

[0037] When the system is in a powerless state, the A...

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PUM

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Abstract

The invention provides a fuel cell standby power supply control system and method. The system comprises an alternating-current power supply, a fuel cell standby power supply and a direct-current load,wherein the alternating-current power supply, the fuel cell standby power supply and the direct-current load are independently connected; and the fuel cell standby power supply includes a starting module and a fuel cell, a circuit breaker is arranged between the starting module and the fuel cell, and the alternating-current power supply is independently connected with the starting module and thefuel cell. A capacity starting battery module is added into the fuel cell standby power supply system, and the module is small in capacity, large in current and low in cost and can supply power to a short-time main control board and a load; and the circuit breaker is added between the starting module and a fuel cell main control board, a power supply relation between the fuel cell and the startingmodule can be physically cut off, control is simple, and logic is concise.

Description

technical field [0001] The invention relates to the technical field of fuel cells, in particular to a fuel cell backup power supply control system and method. Background technique [0002] Communication base stations, iron towers and other equipment that require extremely high power reliability are equipped with multiple power supplies, usually AC mains power supply, and diesel engines and battery packs are also required as backup power supplies. When the mains power is cut off, the user-side backup power supply will start to supply power to the load to ensure that the load does not stop working. However, diesel engines, lithium batteries or accumulators all have the problem of environmental pollution. Especially the storage battery is large in size, short in life, and the maintenance cost cycle is too long, so it cannot be the best choice for backup power supply. Compared with batteries, lithium batteries have slightly optimized performance, but the common problems of che...

Claims

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Application Information

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IPC IPC(8): H02J9/06
CPCH02J9/061Y02B70/30Y02B90/10Y04S20/20
Inventor 薛晓婷覃世球张威刘智亮
Owner GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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