Non-grid-tied wind electricity hydrogen production device

Abstract

The invention discloses a non-grid-tied wind electricity hydrogen production device which comprises a fan, a hydrogen production device body and a control device. The output of the fan is connected with the input of the control device, and the output of the control device is connected with the input of the hydrogen production device body. The non-grid-tied wind electricity hydrogen production device further comprises a storage battery. The storage battery is connected with the input of the hydrogen production device after parallel connection with the output of the fan. When the output voltage of the fan is larger than the voltage of the storage battery, the fan supplies a power source to the hydrogen production device and charges the storage battery at the same time. When the output voltage of the fan is smaller than the voltage of the storage battery, the storage battery outputs power and the fan and the storage battery simultaneously supply a power source to the hydrogen production device. When the output of the fan is larger than the upper limit for normal working of the hydrogen production device or smaller than the lower limit for the normal working of the hydrogen production device, the control device controls the hydrogen production device to be shut down. Wind forces are fully utilized, environment is not polluted, the utilization rate of resources is high, hydrogen can be conveniently and continuously produced only by adoption of the smaller storage battery, and cost is saved.

Description

Technical field [0001] The invention relates to a hydrogen production device, in particular to a non-grid-connected wind power hydrogen production device that can directly use wind power and can realize smooth and stable operation. Background technique [0002] Renewable energy power such as wind power generation and solar power generation has the characteristics of instability, volatility and intermittentness. How to apply 100%, high efficiency and low cost is a problem. Wind power generation and solar power generation are directly connected to the grid, which has a large impact on the grid and high cost. It is an effective method to use multiple energy sources to supply power. At present, there are two main ways of multi-energy complementary power supply: one is the combination of renewable energy power and storage batteries, which can charge the storage batteries with electricity from renewable energy, and then supply the load after being fully charged. The storage batteries a...

AI Technical Summary

Problems solved by technology

In this way, on the one hand, the cost of the battery is high and the service life is short; When the cut-in value of renewable energy power is DC480V, fossil energy power is cut off and only renewable energy power is used

At this time, the renewable energy power cannot be supplemented by fossil energy power. Since the load power is greater than the renewable energy power, the renewable energy power alone cannot fully meet the load requirements, which will cause the load to work abnormally, or even switch back and forth, causing equipment failure. Fault

And when the renewable energy power voltage is lower than the set switching voltage, the renewable energy power will be disconnected and all fossil energy power will be used, which will cause waste of renewable energy power.

On the other hand, hydrogen as a hydrogen energy source requires a large amount of energy in its preparation process

Under normal circumstances, it is necessary to convert the grid power into DC power before supplying power to the hydrogen production device. This method requires AC-DC conversion, resulting in low efficiency and large energy losses. When the grid power supply is insufficient, the hydrogen production device needs to be shut down.

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