Photovoltaic power generation and hydrogen energy storage system for long-distance water delivery trunk canal project

Abstract

A photovoltaic power generation and hydrogen energy storage system for a long-distance water delivery trunk canal project comprises a photovoltaic assembly, the photovoltaic assembly is arranged on the top face of a supporting and covering structure which is erected along a canal and located above the canal, the photovoltaic assembly is connected with a controller, the controller is arranged in a water delivery trunk canal gate station, and the controller is provided with a plurality of output loops. The controller outputs direct-current voltage and then is respectively connected to the direct-current converter, the inverter and the hydrogen electrolytic cell; the inverter is connected with the water supply pump, and the water supply pump is an alternating-current water pump and is arranged in the trunk canal; the hydrogen electrolytic cell is connected with the hydrogen storage tank; the water supply pump is connected with the hydrogen electrolyzer. Photovoltaic power generation and electrolytic hydrogen production are arranged above the water delivery main canal, water in the water delivery main canal is used for providing a water source needed by hydrogen production, and meanwhile a photovoltaic power source is used for providing a direct-current power source needed in the gate station through a DC-DC converter. The invention provides a full-closed-loop, environment-friendly and economical photovoltaic power generation and hydrogen energy storage system by utilizing unique conditions of a water delivery trunk canal.

Description

technical field [0001] The invention belongs to the technical field of electromechanical engineering of water conservancy projects, and more specifically relates to a photovoltaic power generation and hydrogen energy storage system for a long-distance water conveyance main canal project. It is a new photovoltaic power generation and consumption method, which is applicable to all long-distance water conveyance Canal project. Background technique [0002] Existing photovoltaic power generation projects need to occupy a large amount of land, which will generate certain investment costs. [0003] Existing water delivery channels will generate a large amount of evaporation during the water delivery process, resulting in waste of water resources; they will be polluted by dust and other particulate matter during the contact with the atmosphere, making the water quality worse. For this reason, some water conveyance projects will erect channel support covering structures above the c...

AI Technical Summary

Problems solved by technology

[0004] However, photovoltaic power generation faces the problem of connecting to the grid. Due to the unreliability of photovoltaic power generation, the power grid requires photovoltaic power generation to have energy storage functions

The traditional energy storage solution is to set up chemical energy storage batteries. The disadvantages of this solution are: 1. The investment cost is high, and the cost of the battery is high; 2. It is not friendly to the environment, and chemical energy storage batteries will cause heavy metal pollution.

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