Wind, light and water combined hydrogen production system and hydrogen production method
阅读说明：本技术 一种风光水联合制氢系统及制氢方法 (Wind, light and water combined hydrogen production system and hydrogen production method ) 是由 杨博 谢小军 张瑞刚 刘增博 李太江 于 2019-10-10 设计创作，主要内容包括：一种风光水联合制氢系统及制氢方法,该系统包括风力发电系统、光伏发电系统、水力发电系统、与水力发电系统通过供水系统连接的制氢系统,与风力发电系统、光伏发电系统、水力发电系统和制氢系统连接的控制系统,还包括通过变压器与控制系统连接的电网；风力发电系统通过风能发电,光伏发电系统通过太阳能发电,水力发电系统通过水位落差发电,三个发电系统产生的电能通过控制系统协调配置,电能充足时,通过变压器输送至电网,电能不足时,通过制氢系统制备并储存氢气；保证系统能够稳定、连续的运行。(A wind, light and water combined hydrogen production system and a hydrogen production method are provided, the system comprises a wind power generation system, a photovoltaic power generation system, a hydroelectric power generation system, a hydrogen production system connected with the hydroelectric power generation system through a water supply system, a control system connected with the wind power generation system, the photovoltaic power generation system, the hydroelectric power generation system and the hydrogen production system, and a power grid connected with the control system through a transformer; the wind power generation system generates power through wind energy, the photovoltaic power generation system generates power through solar energy, the hydraulic power generation system generates power through water level difference, electric energy generated by the three power generation systems is coordinated and configured through the control system, when the electric energy is sufficient, the electric energy is transmitted to a power grid through a transformer, and when the electric energy is insufficient, hydrogen is prepared and stored through the hydrogen production system; the system can be ensured to run stably and continuously.)
1. a wind, light and water combined hydrogen production system is characterized in that: the system comprises a wind power generation system (1) formed by sequentially connecting a wind power generator set, a converter and a wind power generation controller, a photovoltaic power generation system (2) formed by sequentially connecting a photovoltaic power generation unit, an inverter and a photovoltaic power generation controller, a hydroelectric power generation system (3) formed by connecting a hydroelectric power generation unit and a hydroelectric power generation controller, a hydrogen production system (5) connected with the hydroelectric power generation system (3) through a water supply system (6), a control system (4) connected with the wind power generation system (1), the photovoltaic power generation system (2), the hydroelectric power generation system (3) and the hydrogen production system (5), and a power grid (8) connected with the control system (4) through a transformer; the wind power generation system (1) generates power through wind energy, the photovoltaic power generation system (2) generates power through solar energy, the hydraulic power generation system (3) generates power through water level difference, electric energy generated by the three power generation systems is coordinated and configured through the control system (4), when the electric energy is sufficient, the electric energy is transmitted to the power grid (8) through the transformer (7), and when the electric energy is insufficient, hydrogen is prepared and stored through the hydrogen production system (5).
2. The system for producing hydrogen by combining wind, light and water according to claim 1, characterized in that: the hydrogen production system (5) comprises an electrolytic cell (54) and an electrolytic rod (52) arranged in the electrolytic cell (54), wherein a gas outlet at the top of the electrolytic cell (54) is communicated with an inlet of a gas purifier (55), an outlet of the gas purifier (55) is communicated with an inlet of a gas separator (56), a hydrogen outlet of the gas separator (56) is communicated with a hydrogen storage tank (58) through a conduit (57), and an oxygen outlet of the gas separator (56) is communicated with an oxygen storage tank (59) through a conduit (57); the electrolytic tank (54) is connected with a water supply system (6) through a water inlet pipe (53) to realize water supply; the electrolytic rod (52) is connected with the control system (4) through an electrode (51) outside the electrolytic bath (54) to supply power so as to realize water electrolysis.
3. The system for producing hydrogen by combining wind, light and water according to claim 1, characterized in that: the installed capacity of the wind driven generator system (1) is 10KW or more, the wind driven generator set comprises a horizontal shaft wind driven generator and a vertical wind driven generator, and a wind power generation controller controls the start and stop of the wind driven generator set through a converter.
4. The system for producing hydrogen by combining wind, light and water according to claim 1, characterized in that: the installed capacity of the photovoltaic power generation system (2) is 10KW and above, the inverter has the MPPT function, and the photovoltaic power generation controller starts and stops the photovoltaic power generation unit through the inverter.
5. The system for producing hydrogen by combining wind, light and water according to claim 1, characterized in that: the installed capacity of the hydroelectric power generation system (3) is 10KW or more, and the hydroelectric power generation controller controls the start and stop of the hydroelectric power generation unit.
6. The hydrogen production method of the wind, light and water combined hydrogen production system of any one of claims 1 to 6 is characterized in that: the wind power generation system (1) generates power through wind energy, the photovoltaic power generation system (2) generates power through solar energy, the hydraulic power generation system (3) generates power through water level difference, electric energy generated by the three power generation systems is coordinated and controlled through the control system (4), when the electric energy is sufficient, the electric energy is transmitted to the power grid (8) through the transformer (7), and when the electric energy is insufficient, hydrogen is prepared and stored through the hydrogen production system (5);
The hydrogen production system (5) works as follows: the hydrogen production system (5) is powered by a control system (4) and realizes water electrolysis through an electrode (51) and an electrolysis rod (52), wherein a water source in an electrolysis bath (54) enters the electrolysis bath (54) through a water supply system (6) through a water inlet pipe (53), gas generated by electrolysis is dehumidified and purified through a gas purifier (55) and then enters a gas separator (56) for separation, the separated hydrogen is stored in a hydrogen storage tank (58) through a guide pipe (57), and the generated byproduct oxygen is stored in an oxygen storage tank (59) through the guide pipe (57).
7. The method for producing hydrogen according to claim 6, characterized in that: the control system 4 coordinately controls the power generation processes of the wind power generation system (1), the photovoltaic power generation system (2) and the hydroelectric power generation system (3) as follows:
The total power generated by the wind power generation system (1), the photovoltaic power generation system (2) and the hydroelectric power generation system (3) is delta P, and the formula is as follows:
ΔP＝ΔPwind+ΔPsoler+ΔPwater (1)
wherein, Δ Pwindpower, Δ P, generated for a wind power systemsolarPower, Δ P, generated for photovoltaic power generation systemswaterPower generated for the hydro-power generation system;
the total power consumed by the whole wind, light and water combined hydrogen production system is delta PwThe formula is as follows:
ΔPw＝ΔPin+ΔPH (2)
Wherein Δ PinPower consumed by the water supply system for system operation, Δ PHPower consumed for the hydrogen production process;
The control process is as follows:
When in useWhen the power generated by the wind power generation system (1), the photovoltaic power generation system (2) and the hydroelectric power generation system (3) is larger than the operating power of the hydrogen production system, the rated power of the hydrogen production system is operated, and the redundant power is transmitted to a power grid (8) through a transformer (7) for power generation;
When in useWhen the power generated by the wind power generation system (1), the photovoltaic power generation system (2) and the hydraulic power generation system (3) is less than or equal to the operating power of the hydrogen production system, the whole wind, light and water combined hydrogen production system is not connected to the power grid (8), and the power generated by the wind power generation system (1), the photovoltaic power generation system (2) and the hydraulic power generation system (3) is all used for producing hydrogen.
Technical Field
The invention belongs to the technical field of hydrogen production, and particularly relates to a wind, light and water combined hydrogen production system and a hydrogen production method.
Background
With the consumption of disposable energy sources being almost used up and the gradual increase of environmental protection pressure, people gradually turn eyes to renewable energy sources such as wind power and photovoltaic, but the fluctuation of a wind-solar power generation system is large, stable electric energy cannot be generated, and energy storage or water and electricity are added into a wind-solar complementary system to perform frequency modulation or peak shaving of the system.
Except renewable power energy, hydrogen energy is one of important energy sources for supporting an energy source cleaning structure in the future like electric power, the hydrogen energy has the functions of cleaning and low carbon, zero emission is realized in the using process, only water is generated, and the emission of pollutants is zero. The hydrogen production mode like water electrolysis is very limited at home and abroad, and hydrogen is produced by electrolyzing water by using renewable energy sources, so that the problem of renewable energy sources is solved, and redundant energy sources can be converted into hydrogen energy for recycling.
at present, in some remote areas, the condition that renewable energy sources such as wind power and photovoltaic are excessive or the condition that electricity is limited and cannot be sent out exists, a part of wind-light-water combined hydrogen production system can be built according to the invention, and the prepared hydrogen is recycled, so that the waste of energy sources is avoided.
disclosure of Invention
In order to overcome the problems in the prior art, the invention aims to provide a system and a method for producing hydrogen by combining wind, light and water.
in order to achieve the purpose, the invention adopts the following technical scheme:
A wind-solar-water combined hydrogen production system comprises a wind power generation system 1 formed by sequentially connecting a wind power generator set, a converter and a wind power generation controller, a photovoltaic power generation system 2 formed by sequentially connecting a photovoltaic power generation unit, an inverter and a photovoltaic power generation controller, a hydroelectric power generation system 3 formed by connecting a hydroelectric power generation unit and a hydroelectric power generation controller, a hydrogen production system 5 connected with the hydroelectric power generation system 3 through a water supply system 6, a control system 4 connected with the wind power generation system 1, the photovoltaic power generation system 2, the hydroelectric power generation system 3 and the hydrogen production system 5, and a power grid 8 connected with the control system 4 through a transformer; the wind power generation system 1 generates power through wind energy, the photovoltaic power generation system 2 generates power through solar energy, the hydraulic power generation system 3 generates power through water level difference, electric energy generated by the three power generation systems is coordinated and configured through the control system 4, when the electric energy is sufficient, the electric energy is transmitted to the power grid 8 through the transformer 7, and when the electric energy is insufficient, hydrogen is prepared and stored through the hydrogen production system 5.
the hydrogen production system 5 comprises an electrolytic cell 54 and an electrolytic rod 52 arranged in the electrolytic cell 54, wherein a gas outlet at the top of the electrolytic cell 54 is communicated with an inlet of a gas purifier 55, an outlet of the gas purifier 55 is communicated with an inlet of a gas separator 56, a hydrogen outlet of the gas separator 56 is communicated with a hydrogen storage tank 58 through a conduit 57, and an oxygen outlet of the gas separator 56 is communicated with an oxygen storage tank 59 through a conduit 57; the electrolytic bath 54 is connected with the water supply system 6 through a water inlet pipe 53 to realize water supply; the electrolytic bar 52 is connected with the control system 4 through the electrode 51 outside the electrolytic bath 54 to supply power to realize water electrolysis.
The installed capacity of the wind driven generator system 1 is 10KW or more, the wind driven generator set comprises a horizontal shaft wind driven generator and a vertical wind driven generator, and a wind power generation controller controls the start and stop of the wind driven generator set through a converter.
The installed capacity of the photovoltaic power generation system 2 is 10KW or above, the inverter has the MPPT function, and the photovoltaic power generation controller starts and stops the photovoltaic power generation unit through the inverter.
The installed capacity of the hydroelectric power generation system 3 is 10KW or more, and the hydroelectric power generation controller controls the start and stop of the hydroelectric power generation unit.
According to the hydrogen production method of the wind, light and water combined hydrogen production system, the wind power generation system 1 generates power through wind energy, the photovoltaic power generation system 2 generates power through solar energy, the hydraulic power generation system 3 generates power through water level difference, electric energy generated by the three power generation systems is coordinated and controlled through the control system 4, when the electric energy is sufficient, the electric energy is transmitted to the power grid 8 through the transformer 7, and when the electric energy is insufficient, hydrogen is produced and stored through the hydrogen production system 5;
The hydrogen production system 5 operates as follows: the hydrogen production system 5 is powered by the control system 4 to electrolyze water through the electrode 51 and the electrolysis rod 52, wherein a water source in the electrolysis tank 54 enters the electrolysis tank 54 through the water supply system 6 through the water inlet pipe 53, gas generated by electrolysis is dehumidified and purified through the gas purifier 55 and then enters the gas separator 56 for separation, the separated hydrogen is stored in the hydrogen storage tank 58 through the conduit 57, and the generated byproduct oxygen is stored in the oxygen storage tank 59 through the conduit 57.
The control system 4 coordinately controls the power generation processes of the wind power generation system 1, the photovoltaic power generation system 2 and the hydroelectric power generation system 3 as follows:
The total power generated by the wind power generation system 1, the photovoltaic power generation system 2 and the hydroelectric power generation system 3 is delta P, and the formula is as follows:
ΔP＝ΔPwind+ΔPsoler+ΔPwater (1)
Wherein, Δ PwindPower, Δ P, generated for a wind power systemsolerPower, Δ P, generated for photovoltaic power generation systemswaterpower generated for the hydro-power generation system;
The total power consumed by the whole wind, light and water combined hydrogen production system is delta Pwthe formula is as follows:
ΔPw＝ΔPin+ΔPH (2)
wherein Δ PinPower consumed by the water supply system for system operation, Δ PHPower consumed for the hydrogen production process;
The control process is as follows:
When in usewhen the power generated by the wind power generation system 1, the photovoltaic power generation system 2 and the hydraulic power generation system 3 is larger than the operating power of the hydrogen production system, the hydrogen production system operates at rated power, and redundant power is transmitted to a power grid 8 through a transformer 7 to generate power;
When in useWhen the power generated by the wind power generation system 1, the photovoltaic power generation system 2 and the hydraulic power generation system 3 is less than or equal to the operating power of the hydrogen production system, the whole wind, light and water combined hydrogen production system is not connected to the power grid 8, and the power generated by the wind power generation system 1, the photovoltaic power generation system 2 and the hydraulic power generation system 3 is all used for producing hydrogen.
Compared with the prior art, the invention has the following advantages:
1. the wind power generation, the photovoltaic power generation and the hydroelectric power generation are all renewable clean energy sources and have no pollution to the environment.
2. The photovoltaic power generation system can work only when sunlight is sufficient in daytime, the wind power generation system can work when wind power reaches a certain wind speed, the wind-solar system combined power generation has certain complementarity, and when the wind power and the photovoltaic power generation capacity are insufficient, the system functions are provided by using the hydraulic power generation system, so that the system can stably and continuously operate.
3. The hydrogen production system provides electric energy through the system, and electricity is not required to be purchased from a power grid, so that the cost is saved.
4. the hydrogen energy stored in the hydrogen production system can be sold, and the generated byproduct oxygen can also be sold, so that the system yield is increased.
Drawings
FIG. 1 is a block diagram of a system for producing hydrogen by combining wind, light and water.
FIG. 2 is a schematic diagram of a hydrogen production system.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, a wind-solar-water combined hydrogen production system comprises a wind power generation system 1 formed by sequentially connecting a wind power generator set, a converter and a wind power generation controller, a photovoltaic power generation system 2 formed by sequentially connecting a photovoltaic power generation unit, an inverter and a photovoltaic power generation controller, a hydroelectric power generation system 3 formed by connecting a hydroelectric power generation unit and a hydroelectric power generation controller, a hydrogen production system 5 connected with the hydroelectric power generation system 3 through a water supply system 6, a control system 4 connected with the wind power generation system 1, the photovoltaic power generation system 2, the hydroelectric power generation system 3 and the hydrogen production system 5, and a power grid 8 connected with the control system 4 through a transformer; the wind power generation system 1 generates power through wind energy, the photovoltaic power generation system 2 generates power through solar energy, the hydraulic power generation system 3 generates power through water level difference, electric energy generated by the three power generation systems is coordinated and configured through the control system 4, when the electric energy is sufficient, the electric energy is transmitted to the power grid 8 through the transformer 7, and when the electric energy is insufficient, hydrogen is prepared and stored through the hydrogen production system 5.
as shown in FIG. 2, the hydrogen production system 5 comprises an electrolytic cell 54 and an electrolytic rod 52 arranged in the electrolytic cell 54, wherein a gas outlet at the top of the electrolytic cell 54 is communicated with an inlet of a gas purifier 55, an outlet of the gas purifier 55 is communicated with an inlet of a gas separator 56, a hydrogen outlet of the vent body separator 56 is communicated with a hydrogen storage tank 58 through a conduit 57, and an oxygen outlet of the vent body separator 56 is communicated with an oxygen storage tank 59 through a conduit 57; the electrolytic bath 54 is connected with the water supply system 6 through a water inlet pipe 53 to realize water supply; the electrolytic bar 52 is connected with the control system 4 through the electrode 51 outside the electrolytic bath 54 to supply power to realize water electrolysis.
In a preferred embodiment of the present invention, the installed capacity of the wind turbine system 1 is 10KW or more, the wind turbine generator system includes a horizontal axis wind turbine generator and a vertical wind turbine generator, and the wind turbine generator controller controls the start and stop of the wind turbine generator system through a converter.
In a preferred embodiment of the present invention, the installed capacity of the photovoltaic power generation system 2 is 10KW or more, the inverter has an MPPT function, and the photovoltaic power generation controller starts and stops the photovoltaic power generation unit by the inverter.
in a preferred embodiment of the present invention, the installed capacity of the hydroelectric power generation system 3 is 10KW or more, and the hydroelectric power generation controller controls the start and stop of the hydroelectric power generation unit.
As shown in figure 1, in the hydrogen production method of the wind, light and water combined hydrogen production system, the wind power generation system 1 generates power through wind energy, the photovoltaic power generation system 2 generates power through solar energy, the hydraulic power generation system 3 generates power through water level difference, the electric energy generated by the three power generation systems is coordinately controlled through the control system 4, when the electric energy is sufficient, the electric energy is transmitted to the power grid 8 through the transformer 7, and when the electric energy is insufficient, the hydrogen is prepared and stored through the hydrogen production system 5.
As shown in fig. 2, the hydrogen production system 5 operates as follows: the hydrogen production system 5 is powered by the control system 4 to electrolyze water through the electrode 51 and the electrolysis rod 52, wherein a water source in the electrolysis tank 54 enters the electrolysis tank 54 through the water supply system 6 through the water inlet pipe 53, gas generated by electrolysis is dehumidified and purified through the gas purifier 55 and then enters the gas separator 56 for separation, the separated hydrogen is stored in the hydrogen storage tank 58 through the conduit 57, and the generated byproduct oxygen is stored in the oxygen storage tank 59 through the conduit 57.
The control system 4 of the invention coordinately controls the power generation process of the wind power generation system 1, the photovoltaic power generation system 2 and the hydroelectric power generation system 3 as follows:
The total power generated by the wind power generation system 1, the photovoltaic power generation system 2 and the hydroelectric power generation system 3 is delta P, and the formula is as follows:
ΔP＝ΔPwind+ΔPsoler+ΔPwater (1)
Wherein, Δ Pwindpower, Δ P, generated for a wind power systemsolerPower, Δ P, generated for photovoltaic power generation systemswaterPower generated for the hydro-power generation system;
the total power consumed by the whole wind, light and water combined hydrogen production system is delta PwThe formula is as follows:
ΔPw＝ΔPin+ΔPH (2)
Wherein Δ PinPower consumed by the water supply system for system operation, Δ PHpower consumed for the hydrogen production process;
the control process is as follows:
When in useWhen the power generated by the wind power generation system 1, the photovoltaic power generation system 2 and the hydraulic power generation system 3 is larger than the operating power of the hydrogen production system, the hydrogen production system operates at rated power, and redundant power is transmitted to a power grid 8 through a transformer 7 to generate power;
when in useWhen the power generated by the wind power generation system 1, the photovoltaic power generation system 2 and the hydraulic power generation system 3 is less than or equal to the operating power of the hydrogen production system, the whole wind, light and water combined hydrogen production system is not connected to the power grid 8, and the power generated by the wind power generation system 1, the photovoltaic power generation system 2 and the hydraulic power generation system 3 is all used for producing hydrogen.