Multifunctional complementary wind-solar-hydrogen storage integrated renewable energy system
Technical Field
The invention belongs to the technical field of renewable energy sources, and particularly relates to a multi-energy complementary wind, light and hydrogen storage integrated renewable energy source system.
Background
The development of renewable energy sources such as wind power, photovoltaic power generation and the like is increased, the objective requirement for solving the energy source requirement in China is met, fossil energy consumption in China is reduced, and the dependence on fossil energy consumption and the emission intensity of carbon dioxide are reduced. However, the electric energy has the defect that the electric energy cannot be stored for a long time in a large scale, so that the consumption level of renewable energy sources is improved, and the promotion of the development of the renewable energy sources is always an important problem facing the power grid construction and energy development in China.
Disclosure of Invention
The invention aims to provide a multi-energy complementary wind-solar-hydrogen storage integrated renewable energy system, aiming at the problem that the generated electric quantity cannot be effectively consumed and conveyed to the outside in the development process of renewable energy sources such as wind power, photovoltaic and the like, the clean green electric power is converted into high-quality hydrogen with wider application by establishing a wind-solar-hydrogen storage integrated hydrogen production and supply system with isolated network operation capacity, the development level of green energy is improved, the adjustment can be carried out according to the wind power resources, solar energy resources and hydrogen consumption requirements of different regions, and the development of the renewable resources and the change of the consumption requirements of the green energy in different regions can be met.
The invention provides a multi-energy complementary wind-solar-hydrogen storage integrated renewable energy system, which comprises wind power generation equipment, solar photovoltaic power generation equipment, energy storage equipment, water electrolysis hydrogen production equipment, a hydrogen storage device and a hydrogen conveying pipeline network system connected with the hydrogen storage device;
the water electrolysis and hydrogen production equipment of the energy storage equipment of the solar photovoltaic power generation equipment of the wind power generation equipment is connected with the internal power network, is not connected with an external power grid, and operates in an isolated network mode.
Further, the water electrolysis hydrogen production equipment is connected with the hydrogen storage device through a hydrogen connecting pipeline.
Furthermore, the energy storage device is connected with the wind power generation device and the solar photovoltaic power generation device, and is used for receiving the electric energy generated by the wind power generation device and the solar photovoltaic power generation device and providing a starting power supply for the wind power generation device, the solar photovoltaic power generation device and the water electrolysis hydrogen production device.
Further, the energy storage device is used for providing a control power supply for devices in the system when the wind power generation device and the solar photovoltaic power generation device stop working.
Furthermore, the scale capacity and the number of the wind power generation equipment, the solar photovoltaic power generation equipment, the energy storage equipment and the water electrolysis hydrogen production equipment are adaptively adjusted according to actual conditions.
Further, the operating pressure of the hydrogen connecting pipeline is 1 MPa-35 MPa.
Further, the operating pressure of the hydrogen conveying pipeline network system is 1 MPa-5 MPa.
By means of the scheme, the wind, light and hydrogen storage integrated renewable energy system with multiple complementary functions has the following technical effects:
1) by establishing the wind, light and hydrogen storage integrated hydrogen production and supply system with the isolated network operation capacity, clean green power is converted into high-quality hydrogen with wider application, and the development level of green energy is improved.
2) The electric energy generated by the wind power generation equipment and the solar photovoltaic power generation equipment does not need to be boosted to high-level voltage, and the development cost of renewable energy sources can be effectively reduced.
3) The method has the advantages of high development and utilization rate of renewable energy sources, no carbon dioxide emission and low hydrogen product cost.
4) The configuration, control and regulation of the wind power generation equipment, the solar photovoltaic power generation equipment, the energy storage equipment, the water electrolysis hydrogen production equipment and the hydrogen storage device can be adjusted according to the wind power resource, the solar energy resource and the hydrogen consumption requirement of the using place of the invention, the development of renewable resources and the change of green energy consumption requirements in different regions can be met, and the applicability of the invention is improved.
The foregoing is a summary of the present invention, and in order to provide a clear understanding of the technical means of the present invention and to be implemented in accordance with the present specification, the following is a detailed description of the preferred embodiments of the present invention.
Drawings
FIG. 1 is a schematic structural diagram of the wind-solar-hydrogen storage integrated renewable energy system with multiple energy complementation.
Reference numbers in the figures:
1-a wind power plant; 2-solar photovoltaic power generation equipment; 3-an energy storage device; 4-an internal power network; 5-water electrolysis hydrogen production equipment; 6-hydrogen connecting pipe; 7-a hydrogen storage means; 8-hydrogen delivery pipe network system.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Compared with electric energy, hydrogen energy has the advantage of long-time large-scale storage, and is a beneficial supplement for secondary energy consumption in China besides electric energy. In addition, the hydrogen energy has a more flexible utilization way, and the carbon dioxide emission level in China can be further reduced by improving the consumption level of the hydrogen energy in China. The wind, water and light electricity abandoning energy which is caused by the limitation of power grid transmission is converted into hydrogen energy, so that sufficient green hydrogen energy can be provided by energy supply in China, the utilization level of power generation equipment can be improved, and the investment income is improved. In areas where the power grid construction conditions are limited and large-scale power grid construction cannot be carried out, renewable energy sources depending on power output can be converted into hydrogen energy by establishing a hydrogen energy development system, so that large-scale development of the renewable energy sources is realized.
Referring to fig. 1, the embodiment provides a multi-energy complementary wind, light and hydrogen storage integrated renewable energy system, which includes a wind power generation device 1, a solar photovoltaic power generation device 2, an energy storage device 3, a water electrolysis hydrogen production device 5, a hydrogen storage device 7, and a hydrogen delivery pipe network system 8 connected to the hydrogen storage device 7;
the wind power generation equipment 1, the solar photovoltaic power generation equipment 2, the energy storage equipment 3 and the water electrolysis hydrogen production equipment 5 are connected by an internal power network 4, are not connected with an external power grid and run in an isolated network mode.
In the present embodiment, the water electrolysis hydrogen production apparatus 5 is connected to a hydrogen storage device 7 through a hydrogen connection pipe 6.
In this embodiment, the energy storage device 3 is connected to the wind power generation device 1 and the solar photovoltaic power generation device 2, and is configured to receive electric energy generated by the wind power generation device 1 and the solar photovoltaic power generation device 2, and provide a starting power supply for the wind power generation device 1, the solar photovoltaic power generation device 2, and the electrolyzed water hydrogen production device 5.
In the present embodiment, the energy storage device 3 is used for providing control power to the devices in the system when the wind power generation device 1 and the solar photovoltaic power generation device 2 stop operating.
In the present embodiment, the electric power generated by the wind power generation device 1 and the solar photovoltaic power generation device 2 is boosted to a high-level voltage without passing through the voltage boosting device.
In the embodiment, the scale capacities and the numbers of the wind power generation equipment 1, the solar photovoltaic power generation equipment 2, the energy storage equipment 3 and the water electrolysis hydrogen production equipment 5 are adaptively adjusted according to actual conditions.
In this embodiment, the operating pressure of the hydrogen connecting pipe 6 is 1MPa to 35 MPa.
In this embodiment, the operating pressure of the hydrogen transportation piping system 8 is 1MPa to 5 MPa.
The multifunctional complementary wind, light and hydrogen storage integrated renewable energy system has the following technical effects:
1) by establishing the wind, light and hydrogen storage integrated hydrogen production and supply system with the isolated network operation capacity, clean green power is converted into high-quality hydrogen with wider application, and the development level of green energy is improved.
2) The electric energy generated by the wind power generation equipment and the solar photovoltaic power generation equipment does not need to be boosted to high-level voltage, and the development cost of renewable energy sources can be effectively reduced.
3) The method has the advantages of high development and utilization rate of renewable energy sources, no carbon dioxide emission and low hydrogen product cost.
4) The configuration, control and regulation of the wind power generation equipment, the solar photovoltaic power generation equipment, the energy storage equipment, the water electrolysis hydrogen production equipment and the hydrogen storage device can be adjusted according to the wind power resource, the solar energy resource and the hydrogen consumption requirement of the using place of the invention, the development of renewable resources and the change of green energy consumption requirements in different regions can be met, and the applicability of the invention is improved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, it should be noted that, for those skilled in the art, many modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.