Distributed photovoltaic power generation hydrogen energy storage system and method

A distributed photovoltaic and hydrogen energy storage technology, applied in photovoltaic power generation, electric energy storage systems, circuits, etc., can solve the problems of high component cost, short life, difficult recycling, etc., and achieve simple hydrogen charging, long life, and easy preparation process simple effect

Pending Publication Date: 2019-04-12
QINGHAI UNIVERSITY
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] In order to solve the problems of high component cost, short service life and difficult recycling in traditional electroche

Method used

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  • Distributed photovoltaic power generation hydrogen energy storage system and method
  • Distributed photovoltaic power generation hydrogen energy storage system and method
  • Distributed photovoltaic power generation hydrogen energy storage system and method

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[0026] The present invention will be further described in detail below in conjunction with specific drawings;

[0027] Such as figure 1 As shown in 2, a distributed photovoltaic power generation hydrogen energy storage system includes solar panels, which are placed on top of facilities or buildings to realize the function of photovoltaic power generation. The solar panel 1 is electrically connected to the inverter and the hydrogen storage unit through the master controller 2. Part of the electric energy converted from the solar panel is input into the inverter 7 through the master controller 2 and converted into AC power for household loads 3 Electricity is used normally, and excess electric energy is stored in the hydrogen storage unit for power supply.

[0028] The hydrogen storage unit includes an alkaline electrolytic cell 4, a (metal) hydrogen storage device 5 and a PEM hydrogen fuel cell 6. The positive and negative electrodes of the alkaline electrolytic cell are electrical...

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Abstract

The invention discloses a distributed photovoltaic power generation hydrogen energy storage system and method. The distributed photovoltaic power generation hydrogen storage system comprises a solar cell panel, wherein the solar cell panel is electrically connected with an inverter and a hydrogen energy storage unit by a master controller, the master controller is used for inputting a part of electric energy obtained by conversion of the solar cell panel to the inverter for normal power utilization of a household load, remaining electric energy is stored by a metal hydride energy storage unitwith relatively high absorption performance and then power is supplied. Hydrogen is used as a hydrogen energy storage unit, the remaining electric energy given out in a day is introduced to an electrolytic groove electrolyte to manufacture the hydrogen, the hydrogen is temporarily stored in a hydrogen storage material with high absorption performance, the hydrogen storage material is used for releasing the hydrogen during power utilization at night, the hydrogen is introduced to a hydrogen fuel cell for power generation, the electric energy is converted to chemical energy and then is convertedto the electric energy for effective utilization, the distributed photovoltaic power generation hydrogen storage system is clean and environment-friendly, is high in energy utilization rate and is easy to build.

Description

technical field [0001] The invention belongs to the field of photovoltaic power generation and relates to hydrogen energy storage technology, in particular to a hydrogen energy storage system and method for distributed photovoltaic power generation in the form of efficient and safe metal hydride hydrogen storage. Background technique [0002] Due to its self-sufficiency and no need to consider grid connection, distributed photovoltaic power generation has been widely used in household power supply in remote areas. Combined, it has the ability to migrate energy over time, so that the excess power generated during the day can be used at night. At present, the main energy storage method for distributed photovoltaic power generation is electrochemical energy storage, among which lead-acid batteries, sodium-sulfur batteries, lithium batteries, etc. are mainly used, but this energy storage method often has high cost and short life , and the components are difficult to recycle and...

Claims

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Application Information

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IPC IPC(8): H02J7/35H02J15/00H01M8/0656
CPCH01M8/0656H02J7/35H02J15/00Y02E70/30Y02B10/10Y02E10/56Y02E60/36Y02E60/50
Inventor 杨艳郭效锟司杨宁海东薛小代
Owner QINGHAI UNIVERSITY
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