Control methods, devices and systems, and storage media for wind power hydrogen production

Abstract

This invention discloses a control method, apparatus, system, and storage medium for wind power-to-hydrogen production. The method includes: converting AC power generated by a wind turbine into DC power using a converter, and transmitting the DC power to a hydrogen electrolyzer via an automatic DC switch for water electrolysis to produce hydrogen; transmitting the first synthesized hydrogen from the hydrogen to a fuel cell system via a second valve to generate second AC power, and under the control of a main control system, using the second AC power to provide auxiliary power to the wind turbine auxiliary system and the hydrogen production auxiliary system; when the energy storage device is detected to be in a state of insufficient power, using the second AC power to provide energy to the energy storage device until the energy storage device reaches a state of sufficient power. This invention solves the technical problems of low hydrogen production efficiency and high investment costs caused by wind turbine generators being unable to connect to the grid or grid instability under certain environmental conditions.

Description

Technical Field

[0001] This invention relates to the field of wind power hydrogen production, and more specifically, to a control method, apparatus and system, and storage medium for wind power hydrogen production. Background Technology

[0002] Currently, existing wind power hydrogen production methods mainly include grid-connected power generation and large-scale off-grid complementary hydrogen production. These methods require stable power grids or the availability of multiple renewable energy sources (such as wind, tidal, and solar power) for easy implementation. However, due to factors such as geographical environment, grid-connected electricity prices, the proportion of renewable energy, and the level and scale of power grid construction, some regions cannot effectively achieve wind power hydrogen production using these methods. Furthermore, the hydrogen production process may encounter problems such as unstable power grids, low hydrogen production efficiency, and high investment costs.

[0003] To address the above-mentioned problems, no effective solutions have been proposed so far. Summary of the Invention

[0004] This invention provides a control method, apparatus, system, and storage medium for wind power hydrogen production, to at least solve the technical problems of low hydrogen production efficiency and high investment costs caused by wind turbine generators being unable to generate electricity in specific environments or by grid instability.

[0005] According to one aspect of the present invention, a control method for wind power hydrogen production is provided, comprising: converting a first alternating current (AC) generated by a wind turbine generator into direct current (DC) using a converter, and transmitting the DC power to a hydrogen electrolyzer via a DC automatic switch for water electrolysis to produce hydrogen gas, wherein the hydrogen gas is transmitted to a hydrogen storage system via a first valve; transmitting a first synthesized hydrogen gas from the hydrogen gas to a fuel cell system via a second valve to generate a second AC power, and under the control of a main control system, using the second AC power to provide auxiliary power to a wind turbine auxiliary system and a hydrogen production auxiliary system, wherein the wind turbine auxiliary system and the hydrogen production auxiliary system are respectively used to drive a wind turbine device and a hydrogen production device; when a power storage device is detected to be in a state of insufficient power, using the second AC power to provide energy to the power storage device until the power storage device reaches a state of sufficient power, wherein the power storage device is used to provide an energy source for the wind power hydrogen production system in a standby state.

[0006] Optionally, the hydrogen is divided into the first synthetic hydrogen and the second synthetic hydrogen; the first synthetic hydrogen is transmitted to the fuel cell system as an energy source for the auxiliary power supply system, and the second synthetic hydrogen is stored in the hydrogen storage system; wherein the auxiliary power supply system includes at least the main control system, the wind turbine auxiliary system, and the hydrogen production auxiliary system.

[0007] Optionally, the aforementioned fuel cell system is used to convert the first synthesized hydrogen into the second alternating current; the second alternating current is used, under the control of the main control system, to provide auxiliary power to the fan auxiliary system and the hydrogen production auxiliary system through a switching assembly, wherein the switching assembly includes: a first automatic AC switch, a second automatic AC switch, and a third automatic AC switch; the first automatic AC switch is used to control the operating state of the hydrogen production auxiliary system, the second automatic AC switch is used to control the operating state of the fan auxiliary system, and the third automatic AC switch is used to control the output state of the second alternating current.

[0008] Optionally, the output power of the aforementioned energy storage device is greater than the output power of the aforementioned main control system; the output power of the aforementioned fuel cell system is not less than the sum of the power of the aforementioned wind turbine auxiliary system and the power of the hydrogen production auxiliary system.

[0009] Optionally, before using a converter to convert the first AC power generated by the wind turbine into DC power, the method further includes: when the wind power hydrogen production system is detected to be in a dormant state and the switching assembly is in an open state, controlling the first valve and the second valve to be in a closed state; wherein the main control system is powered by the energy storage device; wherein the power consumption of the main control system in the dormant state is less than the power consumption during normal operation.

[0010] Optionally, the hydrogen production preparation state includes at least a first hydrogen production preparation state and a second hydrogen production preparation state. In the first hydrogen production preparation state, the main control system switches from a wake-up preparation state to a hydrogen production preparation state, and the main control system controls the hydrogen production auxiliary system to perform preparations before its first operation. In the second hydrogen production preparation state, the wind power hydrogen production system is in a long-term operating state, the third AC automatic switch is closed, the fuel cell system starts operating and outputs the second AC power, while the third AC automatic switch is closed to provide power to the hydrogen production auxiliary system.

[0011] Optionally, in the first hydrogen production preparation state, the main control system is controlled to switch from the wake-up preparation state to the hydrogen production preparation state. The main control system controls the hydrogen production auxiliary system to perform preparation work before the first operation, including: closing the third AC automatic switch, starting the fuel cell system and outputting the second AC power; and the main control system controls the second AC automatic switch to be turned on to provide power to the fan auxiliary system.

[0012] Optionally, in the second hydrogen production preparation state, the wind power hydrogen production system is in a long-term operation state, and the method further includes: when the output power of the wind turbine is less than the output power of the main control system, the hydrogen production device enters a hydrogen production standby state.

[0013] According to another aspect of the present invention, a control system for wind power hydrogen production is also provided, comprising: a wind power hydrogen production device, a first power supply device, and a second power supply device; the wind power hydrogen production device is used to convert the first alternating current generated by the wind turbine into direct current using a converter, and transmit the direct current to a hydrogen electrolyzer for water electrolysis to produce hydrogen gas through a DC automatic switch, wherein the hydrogen gas is transmitted to a hydrogen storage system through a first valve; the first power supply device is used to transmit the first synthesized hydrogen gas in the hydrogen gas to a fuel cell system through a second valve to generate second alternating current, and under the control of a main control system, use the second alternating current to provide auxiliary power to the wind turbine auxiliary system and the hydrogen production auxiliary system, wherein the wind turbine auxiliary system and the hydrogen production auxiliary system are respectively used to drive the wind turbine device and the hydrogen production device; the second power supply device is used to provide energy to the energy storage device using the second alternating current when the energy storage device is detected to be in a state of insufficient power, until the energy storage device reaches a state of sufficient power, wherein the energy storage device is used to provide an energy source for the wind power hydrogen production system in standby mode.

[0014] Optionally, the energy structure of the self-powered system is divided into three layers: a first layer of energy, a second layer of energy, and a third layer of energy. The first layer of energy is electrical operating energy, used to drive the wind power hydrogen production device. The second layer of energy is auxiliary power supply energy, used to drive the first power supply device. The third layer of energy is standby wake-up energy, used to drive the second power supply device.

[0015] According to another aspect of the present invention, a control system for wind power hydrogen production is also provided, comprising: a wind power hydrogen production module, configured to convert first alternating current generated by a wind turbine into direct current using a converter, and transmit the direct current to a hydrogen electrolyzer for water electrolysis to produce hydrogen gas via a DC automatic switch, wherein the hydrogen gas is transmitted to a hydrogen storage system via a first valve; a first power supply module, configured to transmit first synthesized hydrogen gas from the hydrogen gas to a fuel cell system via a second valve to generate second alternating current, and under the control of a main control system, use the second alternating current to provide auxiliary power to a wind turbine auxiliary system and a hydrogen production auxiliary system, wherein the wind turbine auxiliary system and the hydrogen production auxiliary system are respectively used to drive a wind turbine device and a hydrogen production device; and a second power supply module, configured to provide energy to a storage device using the second alternating current when a storage device is detected to be in a state of insufficient power, until the storage device reaches a state of sufficient power, wherein the storage device is used to provide an energy source for the wind power hydrogen production system in a standby state.

[0016] According to another aspect of the present invention, a non-volatile storage medium is also provided, which stores a plurality of instructions adapted for a processor to load and execute any one of the above-described wind power hydrogen production control methods.

[0017] According to another aspect of the present invention, a processor is also provided, which is used to run a program, wherein the program is configured to execute any one of the above-described wind power hydrogen production control methods during runtime.

[0018] In this embodiment of the invention, a wind power-to-hydrogen control method is adopted. A converter transforms the first alternating current (AC) generated by the wind turbine into direct current (DC). This DC power is then transmitted via a DC automatic switch to a hydrogen electrolyzer for water electrolysis to produce hydrogen. The hydrogen is then transmitted to a hydrogen storage system via a first valve. First synthesized hydrogen from this hydrogen is transmitted to a fuel cell system via a second valve to generate second AC power. Under the control of the main control system, this second AC power provides auxiliary power to the wind turbine auxiliary system and the hydrogen production auxiliary system, which respectively drive the wind turbine unit. The system includes a hydrogen production device; when the energy storage device is detected to be in a state of insufficient power, the second AC power is used to provide energy to the energy storage device until the energy storage device reaches a state of sufficient power. The energy storage device is used to provide energy for the wind power hydrogen production system in standby mode, achieving the purpose of self-powering control of the wind turbine in islanded mode. This enables the wind turbine to produce hydrogen independently of the grid, improving hydrogen production efficiency and reducing investment costs. It also solves the technical problems of low hydrogen production efficiency and high investment costs caused by the inability of wind turbines to generate electricity in grid connection or grid instability under certain environments. Attached Figure Description

[0019] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0020] Figure 1 This is a flowchart of a wind power hydrogen production control method according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of an optional wind power hydrogen production control method according to an embodiment of the present invention;

[0022] Figure 3 This is a control flowchart of an optional wind power hydrogen production control method according to an embodiment of the present invention;

[0023] Figure 4This is a schematic diagram of the structure of a wind power hydrogen production control system according to an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of an optional wind power hydrogen production control system according to an embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of a wind power hydrogen production control device according to an embodiment of the present invention. Detailed Implementation

[0026] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0027] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0028] First, to facilitate understanding of the embodiments of the present invention, some terms or nouns involved in the present invention will be explained below:

[0029] Island mode: This refers to a wind turbine driving an electrolysis unit without being connected to the power grid. This mode produces hydrogen independently of the grid, allowing the wind turbine to be placed anywhere with good wind resources without having to consider grid connection issues.

[0030] Example 1

[0031] According to an embodiment of the present invention, a control method for producing hydrogen from wind power is provided. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0032] Figure 1 This is a flowchart of a wind power hydrogen production control method according to an embodiment of the present invention, such as... Figure 1 As shown, the method includes the following steps:

[0033] Step S102: The first AC power generated by the wind turbine is converted into DC power by a converter, and the DC power is transmitted to the hydrogen electrolyzer through a DC automatic switch to produce hydrogen by water electrolysis. The hydrogen is then transmitted to the hydrogen storage system through the first valve.

[0034] Step S104: The first synthetic hydrogen in the above hydrogen is transmitted to the fuel cell system through the second valve to generate the second AC power, and under the control of the main control system, the second AC power is used to provide auxiliary power for the fan auxiliary system and the hydrogen production auxiliary system, wherein the fan auxiliary system and the hydrogen production auxiliary system are used to drive the fan device and the hydrogen production device, respectively.

[0035] Step S106: When the energy storage device is detected to be in a state of insufficient power, the second AC power is used to provide energy to the energy storage device until the energy storage device reaches a state of sufficient power. The energy storage device is used to provide an energy source for the wind power hydrogen production system in standby mode.

[0036] Optionally, the wind turbine converts wind energy into mechanical energy and then into electrical energy, with the output AC power varying in both voltage and amplitude; the converter may be, but is not limited to, thyristor rectifier and fully controlled rectifier; the aqueous solution in the water electrolysis may be, but is not limited to, pure water or alkaline water; and the wind power hydrogen production system may include, but is not limited to, one or more electrolyzers.

[0037] In this embodiment of the invention, a wind power-to-hydrogen control method is adopted. A converter transforms the first alternating current (AC) generated by the wind turbine into direct current (DC). This DC power is then transmitted via a DC automatic switch to a hydrogen electrolyzer for water electrolysis to produce hydrogen. The hydrogen is then transmitted to a hydrogen storage system via a first valve. First synthesized hydrogen from this hydrogen is transmitted to a fuel cell system via a second valve to generate second AC power. Under the control of the main control system, this second AC power provides auxiliary power to the wind turbine auxiliary system and the hydrogen production auxiliary system, which respectively drive the wind turbine unit. The system includes a hydrogen production device; when the energy storage device is detected to be in a state of insufficient power, the second AC power is used to provide energy to the energy storage device until the energy storage device reaches a state of sufficient power. The energy storage device is used to provide energy for the wind power hydrogen production system in standby mode, achieving the purpose of self-powering control of the wind turbine in islanded mode. This enables the wind turbine to produce hydrogen independently of the grid, improving hydrogen production efficiency and reducing investment costs. It also solves the technical problems of low hydrogen production efficiency and high investment costs caused by the inability of wind turbines to generate electricity in grid connection or grid instability under certain environments.

[0038] This invention provides a control method for wind power hydrogen production in an islanded mode, which mainly consists of two parts: one part is the output of main electrical energy to produce hydrogen, and the other part is the power supply of the wind power hydrogen production auxiliary system.

[0039] As an optional embodiment, Figure 2 This is a schematic diagram of an optional wind power hydrogen production control method according to an embodiment of the present invention, as shown below. Figure 2 As shown, the above-mentioned wind power hydrogen production control method includes the following steps:

[0040] In step S202, wind energy is converted into electrical energy by a wind turbine (such as a permanent magnet synchronous wind turbine generator set) to generate first alternating current. The first alternating current is converted into direct current by a converter (such as a wind-hydrogen integrated converter). The converter can be, but is not limited to, thyristor rectification and fully controlled rectification.

[0041] In step S204, the converter transmits the DC power to the hydrogen electrolyzer through a DC automatic switch to produce hydrogen by water electrolysis. The hydrogen is then separated, dried, and purified before being transmitted to the hydrogen storage system through the first valve. The output method can be, but is not limited to, bottled output and pipeline output.

[0042] In step S206, a portion of the hydrogen in the hydrogen storage system (i.e., the first synthetic hydrogen in the hydrogen) is transferred to the fuel cell system through the second valve, wherein the fuel cell system is used to convert the first synthetic hydrogen into the second alternating current.

[0043] In step S208, the second AC power is transmitted to the energy storage device (such as a small-capacity battery), the fan auxiliary system, and the hydrogen production auxiliary system via the first AC automatic switch, the second AC automatic switch, and the third AC automatic switch. Under the control of the main control system, the second AC power provides auxiliary power to the fan auxiliary system and the hydrogen production auxiliary system.

[0044] The aforementioned fan auxiliary system and hydrogen production auxiliary system are used to drive the fan unit and the hydrogen production unit, respectively; the aforementioned first AC automatic switch is used to control the working state of the aforementioned hydrogen production auxiliary system, the aforementioned second AC automatic switch is used to control the working state of the aforementioned fan auxiliary system, and the aforementioned third AC automatic switch is used to control the output state of the aforementioned second AC power.

[0045] Step S210: Detect whether the energy storage device is in a state of sufficient power. If the energy storage device is detected to be in a state of insufficient power, use the second AC power to provide energy to the energy storage device until the energy storage device reaches a state of sufficient power. The energy storage device is used to provide an energy source for the wind power hydrogen production system in standby mode.

[0046] Optionally, the wind power hydrogen production control method in this embodiment involves a wind power hydrogen production control method in an islanded mode. Compared with grid-connected power generation hydrogen production and large-scale off-grid complementary hydrogen production, single-unit on-site hydrogen production in an islanded mode is not affected by factors such as grid-connected electricity prices, renewable energy ratios, and the degree and scale of grid construction. This solves the awkward situation of wind power being restricted from grid connection and the problem of high investment costs for multi-energy complementarity. The integrated design of wind turbines and hydrogen production equipment converts wind energy into hydrogen energy output on-site, reducing investment costs, simplifying system structure, reducing the types and number of energy units in the system, reducing the complexity of energy management, and improving energy conversion efficiency and system reliability. The wind power hydrogen production control method proposed in this embodiment will provide an innovative mode for wind turbines that cannot achieve grid-connected power generation, providing a new approach to the production of "green hydrogen," breaking the existing power system's management mode for wind power hydrogen production, and realizing the transmission and delivery of hydrogen energy through hydrogen energy pipelines, achieving efficient utilization of wind resources and maximum output of hydrogen energy.

[0047] The wind power hydrogen production control method in this invention has the following applicable scope: A single-unit hydrogen production system can be established in areas with weak power grids, outputting hydrogen via bottling or pipelines. This method is applicable to both land and sea. A single wind turbine can be used for on-site hydrogen production, or a single wind turbine can be used as a unit to collect the output hydrogen via pipelines, forming a large-scale hydrogen production system at the wind farm level. A wind turbine on-site hydrogen production device can be built on newly constructed wind turbines, or existing wind turbines can be modified to change the form of wind power consumption.

[0048] The embodiments of the present invention can achieve at least the following technical effects: In terms of equipment investment, compared with the grid-connected mode, the wind power hydrogen production control method in the embodiments of the present invention can reduce grid-connected equipment such as wind turbine step-up transformers and hydrogen production transformers, reduce the number of converter devices, and reduce the direct cost per unit by 5-15%; compared with multi-energy complementary off-grid hydrogen production, the wind power hydrogen production control method in the embodiments of the present invention can reduce the investment cost of energy units such as energy storage units and photovoltaic units, saving related equipment costs by about 10-15%; in terms of civil construction, the wind power hydrogen production control method in the embodiments of the present invention does not require the construction of supporting hydrogen production workshops, step-up substations, etc., reducing construction costs by about 30-50%; in terms of operating costs, the wind power hydrogen production control method in the embodiments of the present invention does not need to consider the problem of wind curtailment, but considers the full absorption of wind energy, which will increase the power generation by about 5-10%, while reducing the number of power conversions, with an efficiency of 97% per stage, and the efficiency of the three-stage conversion is improved from 91% to the efficiency of the first-stage conversion.

[0049] In one optional embodiment, the hydrogen is divided into the first synthetic hydrogen and the second synthetic hydrogen; the first synthetic hydrogen is transmitted to the fuel cell system as an energy source for the auxiliary power supply system, and the second synthetic hydrogen is stored in the hydrogen storage system; wherein the auxiliary power supply system includes at least the main control system, the wind turbine auxiliary system, and the hydrogen production auxiliary system.

[0050] Optionally, the hydrogen storage capacity of the aforementioned fuel cell is a minimum hydrogen storage capacity. The selection criteria for the minimum hydrogen storage capacity include at least the following: the amount of electricity generated by the second AC power from the minimum hydrogen storage is sufficient to provide power to the wind turbine generator set for at least two pitch and yaw systems, ensuring the provision of the basic auxiliary power required for the wind turbine generator set to start; and the amount of electricity generated by the second AC power from the minimum hydrogen storage is sufficient to provide the power required for the preparation and operation of the aforementioned hydrogen production auxiliary system.

[0051] In an optional embodiment, the fuel cell system is used to convert the first synthesized hydrogen into the second alternating current; the second alternating current is used, under the control of the main control system, to provide auxiliary power to the fan auxiliary system and the hydrogen production auxiliary system through a switching assembly, wherein the switching assembly includes: a first automatic AC switch, a second automatic AC switch, and a third automatic AC switch; the first automatic AC switch is used to control the operating state of the hydrogen production auxiliary system, the second automatic AC switch is used to control the operating state of the fan auxiliary system, and the third automatic AC switch is used to control the output state of the second alternating current.

[0052] In one optional embodiment, the output power of the energy storage device is greater than the output power of the main control system; the output power of the fuel cell system is not less than the sum of the power of the wind turbine auxiliary system and the power of the hydrogen production auxiliary system.

[0053] Optionally, the output power of the aforementioned energy storage device is greater than the output power of the aforementioned main control system, wherein the capacity requirement of the aforementioned energy storage device is determined according to the user's requirements for the standby time of the aforementioned wind power hydrogen production system.

[0054] Optionally, the output power of the aforementioned fuel cell system is not less than the sum of the power of the aforementioned wind turbine auxiliary system and the power of the hydrogen production auxiliary system. The hydrogen storage capacity of the aforementioned fuel cell is a minimum hydrogen storage capacity. The selection criteria for the minimum hydrogen storage capacity include at least the following: the amount of second AC power generated by the minimum hydrogen storage is sufficient to provide power to the wind turbine generator set for at least two pitch and yaw system cycles, ensuring the provision of the basic auxiliary power required for the wind turbine generator set to start; and the amount of second AC power generated by the minimum hydrogen storage is sufficient to cover the power required for the preparation and operation of the aforementioned hydrogen production auxiliary system.

[0055] In an optional embodiment, before using a converter to convert the first AC power generated by the wind turbine into DC power, the method further includes: when the wind power hydrogen production system is detected to be in a dormant state and the switching assembly is in an open state, controlling the first valve and the second valve to be in a closed state; wherein the main control system is powered by the energy storage device; wherein the power consumption of the main control system in the dormant state is less than the power consumption during normal operation.

[0056] As an optional embodiment, Figure 3 This is a control flowchart of an optional wind power hydrogen production control method according to an embodiment of the present invention, such as... Figure 3 As shown, determining whether the wind power hydrogen production control system is in a dormant state includes determining whether the main control system is awakened. If the main control system is awakened, the wind power hydrogen production control system enters the hydrogen production preparation state; if the main control system is not awakened, the wind power hydrogen production control system is in a dormant state.

[0057] Furthermore, after the aforementioned wind power hydrogen production control system has completed its hydrogen production preparation work, the aforementioned main control system determines, based on the predicted information, whether the aforementioned wind power hydrogen production control system is about to enter the wind power generation state: if it enters the wind power generation state, then the aforementioned wind power hydrogen production control system enters the wind turbine preparation state; if it does not enter the wind power generation state, then the aforementioned wind power hydrogen production control system enters the hydrogen production standby state. The aforementioned hydrogen production standby state can be woken up at any time, and the system will re-detect whether the aforementioned wind power hydrogen production control system is about to enter the wind power generation state.

[0058] Furthermore, after the aforementioned wind power hydrogen production control system completes the wind turbine preparation work, it enters the wind power hydrogen production working state. During the wind power hydrogen production process, the main control system determines whether the output power of the wind turbine auxiliary system is greater than the output power of the hydrogen production auxiliary system. If the output power of the wind turbine auxiliary system is greater than the output power of the hydrogen production auxiliary system, the wind power hydrogen production control system returns to the wind power hydrogen production working state and enters the next round of hydrogen production operation. If the output power of the wind turbine auxiliary system is less than or equal to the output power of the hydrogen production auxiliary system, the main control system determines whether the situation of the wind turbine auxiliary system output power being less than or equal to the output power of the hydrogen production auxiliary system is short-term, based on the wind turbine power prediction results and energy consumption calculation results. If it is a short-term situation, the wind power hydrogen production control system returns to the hydrogen production standby working state; otherwise, it returns to the sleep state.

[0059] In one optional embodiment, the hydrogen production preparation state includes at least a first hydrogen production preparation state and a second hydrogen production preparation state. In the first hydrogen production preparation state, the main control system switches from a wake-up preparation state to the hydrogen production preparation state, and the main control system controls the hydrogen production auxiliary system to perform preparation work before its first operation. In the second hydrogen production preparation state, the wind power hydrogen production system is in a long-term operation state, the third AC automatic switch is in a closed state, the fuel cell system starts operating and outputs the second AC power, while the third AC automatic switch is in a closed state to provide power to the hydrogen production auxiliary system.

[0060] In an optional embodiment, during the first hydrogen production preparation state, the main control system is controlled to switch from the wake-up preparation state to the hydrogen production preparation state. The main control system controls the hydrogen production auxiliary system to perform preparation work before the first operation, including: closing the third AC automatic switch, starting the fuel cell system and outputting the second AC power; and the main control system controls the second AC automatic switch to be turned on to provide power to the wind turbine auxiliary system.

[0061] In an optional embodiment, during the second hydrogen production preparation state, the wind power hydrogen production system is in a long-term operation state, and the method further includes: when the output power of the wind turbine is less than the output power of the main control system, the hydrogen production device enters a hydrogen production standby state.

[0062] Example 2

[0063] According to an embodiment of the present invention, a control system embodiment for implementing the above-described wind power hydrogen production is also provided. Figure 4 This is a schematic diagram of a wind power hydrogen production control system according to an embodiment of the present invention, as shown below. Figure 4 As shown, the control system for the aforementioned wind power hydrogen production includes: a wind power hydrogen production unit 20, a first power supply unit 22, and a second power supply unit 24, wherein:

[0064] The aforementioned wind power hydrogen production device 20 is used to convert the first alternating current generated by the wind turbine generator into direct current using a converter, and then transmits the direct current to the hydrogen electrolyzer through a DC automatic switch to produce hydrogen by water electrolysis. The hydrogen is then transmitted to the hydrogen storage system via a first valve. The aforementioned first power supply device 22 is used to transmit the first synthesized hydrogen in the aforementioned hydrogen to the fuel cell system through a second valve to generate second alternating current. Under the control of the main control system, the second alternating current is used to provide auxiliary power to the wind turbine auxiliary system and the hydrogen production auxiliary system, which are used to drive the wind turbine and the hydrogen production device, respectively. The aforementioned second power supply device 24 is used to provide energy to the energy storage device using the second alternating current when the energy storage device is detected to be in a state of insufficient power, until the energy storage device reaches a state of sufficient power. The energy storage device is used to provide an energy source for the wind power hydrogen production system in standby mode.

[0065] In one alternative embodiment, Figure 5 This is a schematic diagram of an optional wind power hydrogen production control system according to an embodiment of the present invention, as shown below. Figure 5 As shown, the energy structure of the aforementioned self-powered system is divided into three layers: a first-layer energy source 30, a second-layer energy source 32, and a third-layer energy source 34. The first-layer energy source 30 is the electrical operating energy, used to drive the aforementioned wind-powered hydrogen production device; the second-layer energy source 32 is the auxiliary power supply energy, used to drive the aforementioned first power supply device; and the third-layer energy source 34 is the standby wake-up energy, used to drive the aforementioned second power supply device. For example, in... Figure 2 The schematic diagram of the wind power hydrogen production control method shown below:

[0066] Optionally, the first layer of energy 30 is electrical energy used to drive the wind-powered hydrogen production device. Wind energy is converted into electrical energy by a wind turbine (such as a permanent magnet synchronous wind turbine generator) to generate first alternating current. The first alternating current is converted into direct current by a converter (such as a wind-hydrogen integrated converter). The converter can be, but is not limited to, thyristor rectification and fully controlled rectification. The converter transmits the direct current to the hydrogen electrolyzer through a DC automatic switch for water electrolysis to produce hydrogen. The hydrogen is separated, dried, and purified, and then transmitted to the hydrogen storage system through a first valve. The output method can be, but is not limited to, bottled output and pipeline output.

[0067] Optionally, the second-layer energy 32 is an auxiliary power source used to drive the first power supply device. A portion of the hydrogen in the hydrogen storage system (i.e., the first synthetic hydrogen in the hydrogen) is transferred to the fuel cell system through a second valve. The fuel cell system converts the first synthetic hydrogen into the second AC power. The second AC power is transmitted via a first AC automatic switch, a second AC automatic switch, and a third AC automatic switch to a power storage device (such as a small-capacity battery), a fan auxiliary system, and a hydrogen production auxiliary system. Under the control of the main control system, the second AC power provides auxiliary power to the fan auxiliary system and the hydrogen production auxiliary system. The fan auxiliary system and the hydrogen production auxiliary system drive the fan device and the hydrogen production device, respectively. The first AC automatic switch controls the operating state of the hydrogen production auxiliary system, the second AC automatic switch controls the operating state of the fan auxiliary system, and the third AC automatic switch controls the output state of the second AC power.

[0068] Optionally, the third energy layer 34 is a standby wake-up energy source used to drive the second power supply device. It detects whether the energy storage device is in a state of sufficient power. When the energy storage device is detected to be in a state of insufficient power, the second AC power is used to provide energy to the energy storage device until the energy storage device reaches a state of sufficient power. The energy storage device is used to provide an energy source for the wind power hydrogen production system in standby mode.

[0069] Optionally, the aqueous solution in the above water electrolysis can be, but is not limited to, pure water or alkaline water, and the above wind power hydrogen production system can include, but is not limited to, one or more sets of electrolyzers.

[0070] It should be noted that in this application Figures 4 to 5 The specific structure of the wind power hydrogen production control system shown is merely illustrative. In practical applications, the wind power hydrogen production control system in this application can be more advanced than... Figures 4 to 5 The control system for wind power to produce hydrogen shown has more or less structure.

[0071] It should be noted that any optional or preferred wind power hydrogen production control method in Embodiment 1 above can be executed or implemented in the wind power hydrogen production control system provided in this embodiment.

[0072] Furthermore, it should be noted that the optional or preferred implementation methods of this embodiment can be found in the relevant description in Embodiment 1, and will not be repeated here.

[0073] Example 3

[0074] According to an embodiment of the present invention, an apparatus embodiment for implementing the above-described wind power hydrogen production control method is also provided. Figure 6This is a schematic diagram of the structure of a wind power hydrogen production control device according to an embodiment of the present invention, as shown below. Figure 6 As shown, the control device for wind power hydrogen production includes: a wind power hydrogen production module 40, a first power supply module 42, and a second power supply module 44, wherein:

[0075] The aforementioned wind power hydrogen production module 40 is used to convert the first alternating current generated by the wind turbine into direct current using a converter, and then transmit the direct current to the hydrogen electrolyzer through a DC automatic switch to produce hydrogen by water electrolysis. The hydrogen is then transmitted to the hydrogen storage system via a first valve. The aforementioned first power supply module 42 is used to transmit the first synthesized hydrogen in the aforementioned hydrogen to the fuel cell system through a second valve to generate second alternating current. Under the control of the main control system, the second alternating current is used to provide auxiliary power to the wind turbine auxiliary system and the hydrogen production auxiliary system, which are used to drive the wind turbine and the hydrogen production device, respectively. The aforementioned second power supply module 44 is used to provide energy to the energy storage device using the second alternating current when the energy storage device is detected to be in a state of insufficient power, until the energy storage device reaches a state of sufficient power. The energy storage device is used to provide an energy source for the wind power hydrogen production system in standby mode.

[0076] It should be noted that the above modules can be implemented by software or hardware. For example, for the latter, it can be implemented in the following ways: the above modules can be located in the same processor; or the above modules can be located in different processors in any combination.

[0077] It should be noted that the wind power hydrogen production module 40, the first power supply module 42, and the second power supply module 44 mentioned above correspond to steps S102 to S106 in Embodiment 1. The instances and application scenarios implemented by the above modules and the corresponding steps are the same, but are not limited to the content disclosed in Embodiment 1. It should be noted that the above modules, as part of the device, can run on a computer terminal.

[0078] It should be noted that the optional or preferred implementation methods of this embodiment can be found in the relevant description in Embodiment 1, and will not be repeated here.

[0079] The aforementioned wind power hydrogen production control device may also include a processor and a memory. The aforementioned wind power hydrogen production module 40, first power supply module 42, second power supply module 44, etc., are all stored in the memory as program units, and the processor executes the aforementioned program units stored in the memory to realize the corresponding functions.

[0080] The processor contains a core that retrieves corresponding program units from memory. One or more cores may be configured. Memory may include non-persistent memory in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. Memory includes at least one memory chip.

[0081] According to an embodiment of this application, an embodiment of a non-volatile storage medium is also provided. Optionally, in this embodiment, the non-volatile storage medium includes a stored program, wherein, when the program is running, it controls the device containing the non-volatile storage medium to execute any of the aforementioned wind power hydrogen production control methods.

[0082] Optionally, in this embodiment, the non-volatile storage medium may be located in any computer terminal in a group of computer terminals in a computer network, or in any mobile terminal in a group of mobile terminals, and the non-volatile storage medium includes stored programs.

[0083] Optionally, during program execution, the device containing the non-volatile storage medium is controlled to perform the following functions: First, the alternating current (AC) generated by the wind turbine is converted into direct current (DC) using a converter, and the DC power is transmitted to a hydrogen electrolyzer via a DC automatic switch to produce hydrogen through water electrolysis. The hydrogen is then transmitted to a hydrogen storage system via a first valve. Second, the first synthesized hydrogen from the hydrogen is transmitted to a fuel cell system via a second valve to generate second AC power. Under the control of the main control system, the second AC power is used to provide auxiliary power to the wind turbine auxiliary system and the hydrogen production auxiliary system, respectively driving the wind turbine and the hydrogen production unit. Third, when the energy storage device is detected to be under-charged, the second AC power is used to provide energy to the energy storage device until it reaches a fully charged state. The energy storage device is used to provide an energy source for the wind-powered hydrogen production system in standby mode.

[0084] According to an embodiment of this application, an embodiment of a processor is also provided. Optionally, in this embodiment, the processor is used to run a program, wherein the program executes any of the aforementioned wind power hydrogen production control methods.

[0085] According to an embodiment of this application, an embodiment of a computer program product is also provided, which, when executed on a data processing device, is adapted to execute a program that initializes the control method steps for wind power to hydrogen production, which include any of the above-described steps.

[0086] Optionally, when the aforementioned computer program product is executed on a data processing device, it is suitable to execute an initialization program with the following steps: converting the first alternating current generated by the wind turbine generator into direct current using a converter, and transmitting the direct current to a hydrogen electrolyzer via a DC automatic switch to produce hydrogen through water electrolysis, wherein the hydrogen is transmitted to a hydrogen storage system via a first valve; transmitting the first synthesized hydrogen in the hydrogen to a fuel cell system via a second valve to generate second alternating current, and under the control of the main control system, using the second alternating current to provide auxiliary power to the wind turbine auxiliary system and the hydrogen production auxiliary system, wherein the wind turbine auxiliary system and the hydrogen production auxiliary system are used to drive the wind turbine and the hydrogen production device, respectively; when the energy storage device is detected to be in a state of insufficient power, using the second alternating current to provide energy to the energy storage device until the energy storage device reaches a state of sufficient power, wherein the energy storage device is used to provide an energy source for the wind power hydrogen production system in standby mode.

[0087] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0088] In the above embodiments of the present invention, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0089] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of modules described above can be a logical functional division, and in actual implementation, there may be other division methods. For example, multiple modules or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces, or indirect coupling or communication connection between modules, and may be electrical or other forms.

[0090] The modules described above as separate components may or may not be physically separate. Similarly, the components shown as modules may or may not be physical modules; they may be located in one place or distributed across multiple modules. Some or all of the modules can be selected to achieve the purpose of this embodiment, depending on actual needs.

[0091] Furthermore, the functional modules in the various embodiments of the present invention can be integrated into one processing module, or each module can exist physically separately, or two or more modules can be integrated into one module. The integrated modules described above can be implemented in hardware or as software functional modules.

[0092] If the aforementioned integrated modules are implemented as software functional modules and sold or used as independent products, they can be stored in a computer-readable non-volatile storage medium. Based on this understanding, the technical solution of this invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a non-volatile storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this invention. The aforementioned non-volatile storage medium includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0093] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A control method for hydrogen production from wind power, characterized in that, include: A converter is used to convert the first AC power generated by the wind turbine into DC power, and the DC power is transmitted to the hydrogen electrolyzer through a DC automatic switch to produce hydrogen by water electrolysis. The hydrogen is then transmitted to the hydrogen storage system through a first valve. The first synthetic hydrogen in the hydrogen is transmitted to the fuel cell system through the second valve to generate the second AC power. Under the control of the main control system, the second AC power is used to provide auxiliary power to the fan auxiliary system and the hydrogen production auxiliary system. The fan auxiliary system and the hydrogen production auxiliary system are used to drive the fan device and the hydrogen production device, respectively. When the energy storage device is detected to be in a state of insufficient power, the second AC power is used to provide energy to the energy storage device until the energy storage device reaches a state of sufficient power. The energy storage device is used to provide an energy source for the wind power hydrogen production system in standby mode. The method further includes: detecting the status of the main control system; if the main control system is in a wake-up state, then entering a hydrogen production preparation state, which includes at least a first hydrogen production preparation state and a second hydrogen production preparation state; in the first hydrogen production preparation state, controlling the main control system to switch from a wake-up preparation state to a hydrogen production preparation state, and the main control system controlling the hydrogen production auxiliary system to perform preparation work before its first operation; in the second hydrogen production preparation state, the wind power hydrogen production system is in a long-term operation state, the third AC automatic switch is in a closed state, the fuel cell system starts working and outputs the second AC power, and at the same time, the third AC automatic switch is in a closed state to provide power to the hydrogen production auxiliary system, wherein the third AC automatic switch is used to control the output state of the second AC power.

2. The method according to claim 1, characterized in that, include: The hydrogen is divided into first synthetic hydrogen and second synthetic hydrogen; the first synthetic hydrogen is transmitted to the fuel cell system as an energy source for the auxiliary power supply system, and the second synthetic hydrogen is stored in the hydrogen storage system; wherein, the auxiliary power supply system includes at least: the main control system, the wind turbine auxiliary system, and the hydrogen production auxiliary system.

3. The method according to claim 1, characterized in that, The fuel cell system is used to convert the first synthesized hydrogen into the second alternating current; the second alternating current is used, under the control of the main control system, to provide auxiliary power to the wind turbine auxiliary system and the hydrogen production auxiliary system through a switching assembly, wherein the switching assembly includes: a first automatic AC switch, a second automatic AC switch, and a third automatic AC switch; the first automatic AC switch is used to control the working state of the hydrogen production auxiliary system, and the second automatic AC switch is used to control the working state of the wind turbine auxiliary system.

4. The method according to claim 1, characterized in that, include: The output power of the energy storage device is greater than the output power of the main control system; The output power of the fuel cell system is not less than the sum of the power of the wind turbine auxiliary system and the power of the hydrogen production auxiliary system.

5. The method according to claim 3, characterized in that, Before using a converter to convert the initial AC power generated by the wind turbine into DC power, the method further includes: When the wind power hydrogen production system is detected to be in a dormant state and the switching assembly is in an open state, the first valve and the second valve are controlled to be closed; wherein, the main control system is powered by the energy storage device; wherein, the power consumption of the main control system in the dormant state is less than the power consumption during normal operation.

6. The method according to claim 1, characterized in that, In the first hydrogen production preparation state, the main control system is switched from the wake-up preparation state to the hydrogen production preparation state. The main control system controls the hydrogen production auxiliary system to perform preparations before its first operation, including: When the third AC automatic switch is closed, the fuel cell system starts working and outputs the second AC power; the main control system controls the second AC automatic switch to be turned on to provide power to the wind turbine auxiliary system.

7. The method according to claim 1, characterized in that, In the second hydrogen production preparation state, the wind power hydrogen production system is in a long-term operation state, and the method further includes: when the output power of the wind turbine is less than the output power of the main control system, the hydrogen production device enters the hydrogen production standby state.

8. A control system for wind power-to-hydrogen production, characterized in that, Includes a wind power hydrogen production unit, a first power supply unit, and a second power supply unit; The wind power hydrogen production device is used to convert the first AC power generated by the wind turbine into DC power using a converter, and transmit the DC power to the hydrogen electrolyzer through a DC automatic switch to produce hydrogen by water electrolysis, wherein the hydrogen is transmitted to the hydrogen storage system through a first valve. The first power supply device is used to transmit the first synthetic hydrogen in the hydrogen gas to the fuel cell system through the second valve to generate the second AC power, and under the control of the main control system, use the second AC power to provide auxiliary power to the fan auxiliary system and the hydrogen production auxiliary system, wherein the fan auxiliary system and the hydrogen production auxiliary system are used to drive the fan device and the hydrogen production device, respectively. The second power supply device is used to provide energy to the energy storage device using the second AC power when the energy storage device is detected to be in a state of insufficient power, until the energy storage device reaches a state of sufficient power, wherein the energy storage device is used to provide an energy source for the wind power hydrogen production system in standby mode; The system is further configured to detect the status of the main control system. If the main control system is in a wake-up state, it enters a hydrogen production preparation state, which includes at least a first hydrogen production preparation state and a second hydrogen production preparation state. In the first hydrogen production preparation state, the main control system is controlled to switch from the wake-up preparation state to the hydrogen production preparation state, and the main control system controls the hydrogen production auxiliary system to perform preparation work before its first operation. In the second hydrogen production preparation state, the wind power hydrogen production system is in a long-term operation state, the third AC automatic switch is in a closed state, the fuel cell system starts working and outputs the second AC power, and at the same time, the third AC automatic switch is in a closed state to provide power to the hydrogen production auxiliary system, wherein the third AC automatic switch is used to control the output state of the second AC power.

9. The control system according to claim 8, characterized in that, The energy structure of the control system is divided into three layers: the first layer of energy, the second layer of energy, and the third layer of energy. The first layer of energy is electrical energy, used to drive the wind power hydrogen production device; The second layer of energy is auxiliary power supply energy, used to drive the first power supply device; The third layer of energy is a standby wake-up energy source used to drive the second power supply device.

10. A control device for wind power hydrogen production, characterized in that, include: The wind power hydrogen production module is used to convert the first AC power generated by the wind turbine into DC power using a converter, and transmit the DC power to the hydrogen electrolyzer through a DC automatic switch to produce hydrogen by water electrolysis. The hydrogen is then transmitted to the hydrogen storage system through a first valve. The first power supply module is used to transmit the first synthetic hydrogen in the hydrogen to the fuel cell system through the second valve to generate the second AC power, and under the control of the main control system, use the second AC power to provide auxiliary power to the fan auxiliary system and the hydrogen production auxiliary system, wherein the fan auxiliary system and the hydrogen production auxiliary system are used to drive the fan device and the hydrogen production device, respectively. The second power supply module is used to provide energy to the energy storage device using the second AC power when the energy storage device is detected to be in a state of insufficient power, until the energy storage device reaches a state of sufficient power. The energy storage device is used to provide an energy source for the wind power hydrogen production system in standby mode. The device is further configured to detect the status of the main control system. If the main control system is in a wake-up state, it enters a hydrogen production preparation state, which includes at least a first hydrogen production preparation state and a second hydrogen production preparation state. In the first hydrogen production preparation state, the main control system is controlled to switch from the wake-up preparation state to the hydrogen production preparation state, and the main control system controls the hydrogen production auxiliary system to perform preparation work before its first operation. In the second hydrogen production preparation state, the wind power hydrogen production system is in a long-term operation state, the third AC automatic switch is in a closed state, the fuel cell system starts working and outputs the second AC power, and at the same time, the third AC automatic switch is in a closed state to provide power to the hydrogen production auxiliary system, wherein the third AC automatic switch is used to control the output state of the second AC power.

11. A non-volatile storage medium, characterized in that, The non-volatile storage medium includes a stored program, wherein, when the program is executed, it controls the device containing the non-volatile storage medium to perform the wind power hydrogen production control method according to any one of claims 1 to 7.

12. A processor, characterized in that, The processor is used to run a program, wherein the program executes the wind power hydrogen production control method according to any one of claims 1 to 7.

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