Wind power hydrogen production system
By combining wind power with hydrogen production systems, and utilizing DC bus connections and real-time communication networks, the problem of unstable power consumption caused by the volatility and intermittency of wind power generation was solved, thus achieving stable power consumption and system balance.
Patent Information
- Application Number
- CN202423259419.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-12-27
AI Technical Summary
The volatility and intermittency of wind power generation lead to unstable power consumption, and existing battery energy storage solutions are unable to effectively reduce this adverse effect.
The system employs a wind-powered hydrogen production system, which includes wind turbines, a hydrogen production subsystem, a power-type energy storage unit, an energy-type energy storage unit, and a real-time communication network. Through DC bus connection and real-time data transmission, it achieves rapid power balance and energy buffering.
It has achieved stable absorption of wind turbine power, reduced the adverse effects of the volatility and intermittency of wind power generation on the power grid, and improved the system's balance and responsiveness.
Smart Images
Figure CN223633485U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application belongs to the technical field of wind power, and particularly relates to a wind power hydrogen production system. BACKGROUND
[0002] With the continuous development of new energy technology, the application range of wind power generation technology is also more and more extensive. At present, wind turbine generators are connected in parallel with power grids, and the electric energy generated by the wind turbine generators is transmitted to the power grid for consumption. However, wind power generation has volatility and intermittency, and the phenomenon that the electric energy generated by the wind turbine generators cannot meet the consumption requirements of the power grid or the phenomenon that the electric energy generated by the wind turbine generators cannot be consumed by the power grid may occur. In order to alleviate the problem, a battery can be configured for the wind turbine generator, and when the electric energy generated by the wind turbine generator cannot be consumed by the power grid, the battery can store the excess electric energy; when the electric energy generated by the wind turbine generator cannot meet the consumption requirements of the power grid, the battery can release the stored electric energy to support the operation of the power grid. However, the battery capacity is limited and cannot cope with longer time and larger capacity electric energy consumption, and it is difficult to reduce the adverse effects caused by the volatility and intermittency of wind power generation. CONTENT OF THE UTILITY MODEL
[0003] The application embodiment provides a wind power hydrogen production system, which can reduce the adverse effects caused by the volatility and intermittency of wind power generation.
[0004] The application embodiment provides a wind power hydrogen production system, which comprises: a wind turbine generator, configured to generate electric energy; a hydrogen production subsystem, connected with the wind turbine generator through a direct current bus, configured to consume the electric energy generated by the wind turbine generator; a power-type energy storage unit, connected with the direct current bus, configured to charge or discharge the direct current bus to cope with transient power fluctuation and stabilize the voltage of the direct current bus; an energy-type energy storage unit, connected with the direct current bus, configured to charge or discharge the direct current bus to realize electric energy buffering; and a real-time communication network, connected with the wind turbine generator, the hydrogen production subsystem, the power-type energy storage unit and the energy-type energy storage unit, configured to obtain data of the wind turbine generator, the hydrogen production subsystem, the power-type energy storage unit and the energy-type energy storage unit in real time, and transmit instructions to the wind turbine generator, the hydrogen production subsystem, the power-type energy storage unit and the energy-type energy storage unit.
[0005] In some possible embodiments, the real-time communication network comprises: an energy master control unit; a plurality of energy slave control units, each of the wind turbine generator, the hydrogen production subsystem, the power-type energy storage unit and the energy-type energy storage unit being connected with one energy slave control unit; and a mesh communication line, through which the plurality of energy slave control units are connected with the energy master control unit to transmit data interaction and instructions; wherein the energy master control unit controls the wind turbine generator, the hydrogen production subsystem, the power-type energy storage unit and the energy-type energy storage unit through the energy slave control units.
[0006] In some possible embodiments, the real-time communication network further comprises: an energy management system connected to the energy master control unit, configured to receive data uploaded by the energy master control unit and send instructions to the energy master control unit.
[0007] In some possible embodiments, the energy slave control unit comprises: a sensor arranged in one or more of the wind turbine, the hydrogen production subsystem, the power-type energy storage unit and the energy-type energy storage unit, and configured to collect data of one or more of the wind turbine, the hydrogen production subsystem, the power-type energy storage unit and the energy-type energy storage unit.
[0008] In some possible embodiments, the mesh communication line comprises an optical fiber ring network.
[0009] In some possible embodiments, the wind turbine, the hydrogen production subsystem, the power-type energy storage unit and the energy-type energy storage unit each have a power interface, and are connected to the DC bus through the power interface; the wind turbine, the hydrogen production subsystem, the power-type energy storage unit and the energy-type energy storage unit each have a communication interface, and are connected to the communication interface of the corresponding energy slave control unit through the respective communication interface.
[0010] In some possible embodiments, the wind turbine comprises: a wind power generation structure; and a rectifier, an AC input end of the rectifier being connected to the wind power generation structure, and a DC output end of the rectifier being connected to the DC bus.
[0011] In some possible embodiments, the power-type energy storage unit comprises a flywheel energy storage unit and / or a super capacitor energy storage unit; and the energy-type energy storage unit comprises a battery energy storage unit and / or a hydroelectric energy storage unit.
[0012] In some possible embodiments, the hydrogen production subsystem comprises: a fast power response hydrogen production unit connected to the DC bus and configured to consume high-frequency components in the electric power; and / or a slow power response hydrogen production unit connected to the DC bus and configured to consume low-frequency components in the electric power for hydrogen production.
[0013] In some possible embodiments, the fast power response hydrogen production unit comprises a proton exchange membrane water electrolysis hydrogen production unit; and the slow power response hydrogen production unit comprises an alkaline water electrolysis hydrogen production unit.
[0014] The embodiment of the present application provides a wind power hydrogen production system, which comprises a wind turbine, a hydrogen production subsystem, a power-type energy storage unit, an energy-type energy storage unit and a real-time communication network. The hydrogen production subsystem is connected with the wind turbine through a DC bus, and the power-type energy storage unit and the energy-type energy storage unit are both connected with the DC bus. The wind turbine generates electric energy; the hydrogen production subsystem consumes the electric energy of the wind turbine; the instantaneous charging and discharging power of the power-type energy storage unit is relatively large, which can be quickly charged from the DC bus or discharged to the DC bus, so as to cope with instantaneous power fluctuation and stabilize the voltage of the DC bus; the instantaneous charging and discharging power of the energy-type energy storage unit is relatively small, which can assist the power-type energy storage unit to adjust the electric quantity and realize electric energy buffering. The real-time communication network is connected with the wind turbine, the hydrogen production subsystem, the power-type energy storage unit and the energy-type energy storage unit, can obtain the data of the wind turbine, the hydrogen production subsystem, the power-type energy storage unit and the energy-type energy storage unit in real time, and can send instructions to the wind turbine, the hydrogen production subsystem, the power-type energy storage unit and the energy-type energy storage unit in real time, so as to monitor the wind power hydrogen production system and quickly balance the wind power hydrogen production system, and reduce the adverse effects caused by the fluctuation and intermittence of wind power generation. BRIEF DESCRIPTION OF DRAWINGS
[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly introduced. Those skilled in the art can obtain other drawings according to these drawings without creating any creative labor.
[0016] Figure 1 A structural schematic diagram of a wind power hydrogen production system provided by an embodiment of the present application is shown in the figure.
[0017] Figure 2 A structural schematic diagram of a wind power hydrogen production system provided by another embodiment of the present application is shown in the figure.
[0018] Figure 3 A structural schematic diagram of a wind power hydrogen production system provided by another embodiment of the present application is shown in the figure.
[0019] Figure 4 A structural schematic diagram of a wind power hydrogen production system provided by another embodiment of the present application is shown in the figure.
[0020] Figure 5 A schematic diagram of a black start example of a wind power hydrogen production system provided by an embodiment of the present application is shown in the figure. DETAILED DESCRIPTION
[0021] The features and exemplary embodiments of various aspects of the present application will be described below in detail, in order to make the purposes, technical solutions and advantages of the present application more clear and apparent, the present application will be further described in detail below in combination with the drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, but not to limit the present application. For those skilled in the art, the present application can be implemented without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by showing examples of the present application.
[0022] With the continuous development of new energy technology, the application range of wind power generation technology is also more and more widely. At present, wind turbine is connected with power grid in parallel, and the electric energy generated by the wind turbine is transmitted to the power grid for consumption. However, wind power generation has volatility and intermittency, and the phenomenon that the electric energy generated by the wind turbine cannot meet the consumption requirements of the power grid or the phenomenon that the power grid cannot consume the electric energy generated by the wind turbine may occur. In order to alleviate this problem, a battery can be configured for the wind turbine, and when the power grid cannot consume the electric energy generated by the wind turbine, the battery can store the excess electric energy; when the electric energy generated by the wind turbine cannot meet the consumption requirements of the power grid, the battery can release the stored electric energy to support the operation of the power grid. However, the capacity of the battery is limited, and it cannot cope with longer time and larger capacity of electric energy consumption, and it is difficult to reduce the adverse effects caused by the volatility and intermittency of wind power generation.
[0023] The present application provides a wind power hydrogen production system, which can realize source-load interaction, can include a wind turbine, a hydrogen production subsystem, a power-type energy storage unit, an energy-type energy storage unit and a real-time communication network. Among them, the wind turbine is the power source of source-load interaction, the hydrogen production subsystem is the variable load of source-load interaction, the power-type energy storage unit is the voltage source of source-load interaction, the energy-type energy storage unit is the energy buffer of interaction mitigation, and the real-time communication network can realize the transmission of data and instructions of the wind turbine, the hydrogen production subsystem, the power-type energy storage unit and the energy-type energy storage unit in real time, so as to realize the rapid detection control of the wind power hydrogen production system, which is an offline system, has better followability, can guarantee the balance of the wind power hydrogen production system, and reduce the adverse effects caused by the volatility and intermittency of wind power generation.
[0024] Figure 1 The structure diagram of the wind power hydrogen production system provided by an embodiment of the present application is shown as Figure 1 The wind power hydrogen production system can include a wind turbine 11, a hydrogen production subsystem 12, a power-type energy storage unit 13, an energy-type energy storage unit 14 and a real-time communication network 15.
[0025] The wind turbine 11 is used as a power source of the wind power hydrogen production system, and is configured to generate electric power. The wind turbine 11 can output direct current electric power, and the wind turbine 11 can include a direct current wind turbine. In some examples, the wind turbine 11 can include a wind power generation structure 111 and a rectifier 112. The wind power generation structure can include, but is not limited to, blades, a transmission shaft, a gear box, a generator, and the like. An alternating current input end of the rectifier 112 is connected to the wind power generation structure 111, and a direct current output end of the rectifier 112 is connected to the direct current bus 16. The output end of the wind turbine 11 can include the direct current output end of the rectifier 112. The wind power generation structure 111 converts wind energy into alternating current electric power, and transmits the alternating current electric power to the rectifier 112. The rectifier 112 converts the alternating current electric power into direct current electric power and outputs the direct current electric power.
[0026] The hydrogen production subsystem 12 is used as a load of the wind power hydrogen production system, and is connected to the wind turbine 11 through the direct current bus 16. The hydrogen production subsystem 12 is a direct current system, and can directly obtain electric power from the direct current bus 16, thereby absorbing the electric power generated by the wind turbine 11. The hydrogen production subsystem 12 can obtain electric power from the direct current bus 16, and produce hydrogen by using the obtained electric power.
[0027] The power type energy storage unit 13 is used as a voltage source of the wind power hydrogen production system, and is connected to the direct current bus 16. The power type energy storage unit 13 can be used to charge or discharge from or to the direct current bus 16, so as to stabilize the voltage of the direct current bus 16. The power type energy storage unit 13 can obtain electric power from the direct current bus 16, thereby achieving charging of the power type energy storage unit 13, and reducing the voltage of the direct current bus 16. The power type energy storage unit 13 can discharge to the direct current bus 16, thereby increasing the voltage of the direct current bus 16. The power type energy storage unit 13 has a large instantaneous charging and discharging power, and can cope with instantaneous power fluctuation. When the hydrogen production demand of the hydrogen production subsystem 12 does not match the power of the wind turbine 11, the power type energy storage unit 13 can quickly balance the hydrogen production demand of the hydrogen production subsystem 12 and the power of the wind turbine 11. In some examples, the power type energy storage unit can include a flywheel energy storage unit and / or a super capacitor energy storage unit.
[0028] The energy type energy storage unit 14 is used as an energy buffer in the wind power hydrogen production system, and is connected to the direct current bus 16. The energy type energy storage unit 14 is used to charge or discharge from or to the direct current bus 16, so as to achieve electric power buffering. The energy type energy storage unit 14 has a small instantaneous charging and discharging power, and can adjust the amount of electric power stored by the power type energy storage unit 13 to achieve buffering when the power type energy storage unit 13 reaches the upper limit of energy storage or is insufficient in energy storage. The energy type energy storage unit 14 can also cooperate with the power type energy storage unit 13 to balance the hydrogen production demand of the hydrogen production subsystem 12 and the power of the wind turbine 11. In some examples, the energy type energy storage unit includes a battery energy storage unit and / or a hydroelectric energy storage unit.
[0029] For example, if the wind power hydrogen production system is in a power surplus state, i.e., the power of the wind turbine 11 is greater than the hydrogen production demand of the hydrogen production subsystem 12, the electric energy can flow from the wind turbine 11 to the hydrogen production subsystem 12, the power storage unit 13 and the energy storage unit 14, i.e., the electric energy generated by the wind turbine 11 is not only obtained by the hydrogen production subsystem 12 for hydrogen production, but the power storage unit 13 and the energy storage unit 14 can be charged from the DC bus 16. At the same time of hydrogen production by the hydrogen production subsystem 12, if the energy storage capacity of the power storage unit 13 and the energy storage unit 14 is insufficient, the wind turbine 11 can operate at a limited power to avoid that the electric energy generated by the wind turbine 11 exceeds the working boundary of the normal operation of the wind power hydrogen production system. If the wind power hydrogen production system is in a power deficient state, i.e., the power of the wind turbine 11 is less than the hydrogen production demand of the hydrogen production subsystem 12, the electric energy can flow from the wind turbine 11, the power storage unit 13 and the energy storage unit 14 to the hydrogen production subsystem, i.e., in addition to the electric energy generated by the wind turbine 11 being supplied to the hydrogen production subsystem 12 for hydrogen production, the power storage unit 13 and the energy storage unit 14 can be discharged to the DC bus 16 to provide the hydrogen production subsystem 12 for hydrogen production. If the power storage unit 13 is in an energy over-limit state, i.e., the electric energy storage capacity of the power storage unit 13 is greater than the standard energy storage threshold, the electric energy flows from the power storage unit 13 to the energy storage unit 14, i.e., the power storage unit 13 is discharged and the energy storage unit 14 is charged to adjust the electric energy storage capacity of the power storage unit 13. If the power storage unit 13 is in an energy deficiency state, i.e., the electric energy storage capacity of the power storage unit 13 is less than the standard energy storage threshold, the electric energy flows from the energy storage unit 14 to the power storage unit 13, i.e., the power storage unit 13 is charged and the energy storage unit 14 is discharged to adjust the electric energy storage capacity of the power storage unit 13.
[0030] The real-time communication network 15 is connected with the wind turbine 11, the hydrogen production subsystem 12, the power storage unit 13 and the energy storage unit 14. The real-time communication network 15 can be used to obtain the data of the wind turbine 11, the hydrogen production subsystem 12, the power storage unit 13 and the energy storage unit 14 in real time, and transmit instructions to the wind turbine 11, the hydrogen production subsystem 12, the power storage unit 13 and the energy storage unit 14. The real-time communication network 15 can obtain data in real time and transmit instructions in real time, deeply coupling the control layer and the data acquisition layer, and the real-time communication network 15 does not need an intermediate switch for conversion, has a faster speed, can quickly monitor the wind power hydrogen production system, and the wind power hydrogen production system has better balance and follow-up performance.
[0031] In the embodiment of the present application, the wind power hydrogen production system comprises a wind turbine 11, a hydrogen production subsystem 12, a power-type energy storage unit 13, an energy-type energy storage unit 14, and a real-time communication network 15. The hydrogen production subsystem is connected to the wind turbine 11 through a direct current bus 16, and the power-type energy storage unit 13 and the energy-type energy storage unit 14 are both connected to the direct current bus 16. The wind turbine 11 generates electric energy; the hydrogen production subsystem 12 consumes the electric energy generated by the wind turbine 11; the power-type energy storage unit 13 has relatively large instantaneous charging and discharging power, and can quickly charge or discharge the direct current bus 16 to stabilize the voltage of the direct current bus 16; the energy-type energy storage unit 14 has relatively small instantaneous charging and discharging power, and can assist the power-type energy storage unit 13 to adjust the electric energy to achieve electric energy buffering. The real-time communication network 15 is connected to the wind turbine 11, the hydrogen production subsystem 12, the power-type energy storage unit 13, and the energy-type energy storage unit 14, and can obtain the data of the wind turbine 11, the hydrogen production subsystem 12, the power-type energy storage unit 13, and the energy-type energy storage unit 14 in real time, and send instructions to the wind turbine 11, the hydrogen production subsystem 12, the power-type energy storage unit 13, and the energy-type energy storage unit 14 in real time to monitor the wind power hydrogen production system, so as to quickly balance the wind power hydrogen production system, so that the electric energy generated by the wind turbine 11 can be fully utilized, thereby solving the problem of consumption of the electric energy generated by the wind turbine 11, and reducing the adverse effects caused by the volatility and intermittency of wind power generation.
[0032] In some embodiments, the real-time communication network 15 can deeply couple the control layer and the data acquisition layer. Figure 2 The structure schematic diagram of the wind power hydrogen production system provided for another embodiment of the present application is shown in FIG. 2. As shown in FIG. 2, the real-time communication network 15 can comprise an energy master control unit 151, a plurality of energy slave control units 152, and a mesh communication line 153. Figure 2
[0033] The wind turbine 11, the hydrogen production subsystem 12, the power-type energy storage unit 13, and the energy-type energy storage unit 14 are each connected with an energy slave control unit 152. The energy slave control unit 152 can communicate with the wind turbine 11, the hydrogen production subsystem 12, the power-type energy storage unit 13, and the energy-type energy storage unit 14, acquire data from the wind turbine 11, the hydrogen production subsystem 12, the power-type energy storage unit 13, and the energy-type energy storage unit 14, and transmit the data to the energy master control unit 151. For example, one or more of voltage data, current data, power data, and state data (which can include one or more of temperature data, humidity data, and fault data) of the wind turbine 11, the hydrogen production subsystem 12, the power-type energy storage unit 13, and the energy-type energy storage unit 14 can be acquired. The energy slave control unit 152 can also transmit instructions issued by the energy master control unit 151 to one or more of the wind turbine 11, the hydrogen production subsystem 12, the power-type energy storage unit 13, and the energy-type energy storage unit 14. The energy slave control unit 152 can also perform some edge computing.
[0034] The plurality of energy slave control units 152 are connected with the energy master control unit 151 through a mesh communication line 153 to transmit data and instructions. The energy slave control units 152 transmit data to the energy master control unit 151 through the mesh communication line 153, and the energy master control unit 151 transmits instructions to the energy slave control units 152 through the mesh communication line 153. The energy master control unit 151 controls the wind turbine 11, the hydrogen production subsystem 12, the power-type energy storage unit 13, and the energy-type energy storage unit 14 through the energy slave control units 152. The mesh communication line 153 can quickly transmit data and instructions, thereby realizing real-time transmission of data and instructions, quickly controlling and adjusting the wind-to-hydrogen system, and ensuring power balance of the wind-to-hydrogen system. In some examples, the mesh communication line 153 can include a fiber ring network, and a real-time communication protocol such as Ethercat can be used.
[0035] The energy master control unit 151, the energy slave control units 152, and the mesh communication line 153 make data acquisition part of the control, without the need for a dedicated master station for data acquisition or the need for an intermediate switch, so that the transmission speed of data and instructions is faster.
[0036] In some embodiments, the real-time communication network 15 can further include an energy management system (EMS). Figure 3 A structural schematic diagram of a wind-to-hydrogen system according to another embodiment of the present application is shown in FIG. 2. The wind-to-hydrogen system includes a wind turbine 11, a hydrogen production subsystem 12, a power-type energy storage unit 13, an energy-type energy storage unit 14, an energy master control unit 151, and an energy slave control unit 152. Figure 3As shown, the energy management system 154 is connected with the energy master control unit 151 for receiving data uploaded by the energy master control unit 151 and sending instructions to the energy master control unit 151. The energy master control unit 151 can realize power control of the wind turbine 11, the hydrogen production subsystem 12, the power-type energy storage unit 13 and the energy-type energy storage unit 14. The energy management system 154 can realize monitoring of the wind power hydrogen production system according to the data transmitted by the energy master control unit 151. For example, the energy management system 154 can issue a target power of the wind power hydrogen production system to the energy master control unit 151, and the energy master control unit 151 can complete power distribution control of the wind turbine 11, the hydrogen production subsystem 12, the power-type energy storage unit 13 and the energy-type energy storage unit 14 according to the target power.
[0037] In some embodiments, the energy slave control unit 152 can include a sensor. The sensor can be arranged in one or more of the wind turbine 11, the hydrogen production subsystem 12, the power-type energy storage unit 13 and the energy-type energy storage unit 14. The sensor and the body of the energy slave control unit 152 can be connected through a connection line such as a signal line. The sensor can be used to collect data of one or more of the wind turbine 11, the hydrogen production subsystem 12, the power-type energy storage unit 13 and the energy-type energy storage unit 14. The data collected by the sensor is related to the type of the sensor and the position where the sensor is installed. For example, the data collected by the sensor can include one or more of voltage data, current data and state data. The specific content of the state data can be referred to the related description above, which will not be described here again. The sensor is part of the energy slave control unit 152, and the data collected by the sensor is the data obtained by the energy slave control unit 152. The data can be collected in real time through the sensor, which can further improve the data collection efficiency, data transmission speed and real-time performance of the data.
[0038] In some examples, the wind turbine 11, the hydrogen production subsystem 12, the power-type energy storage unit 13 and the energy-type energy storage unit 14 each have a power interface. The wind turbine 11, the hydrogen production subsystem 12, the power-type energy storage unit 13 and the energy-type energy storage unit 14 are connected with the DC bus 16 through the respective power interfaces. The energy slave control unit 152, the wind turbine 11, the hydrogen production subsystem 12, the power-type energy storage unit 13 and the energy-type energy storage unit 14 each have a communication interface. The wind turbine 11, the hydrogen production subsystem 12, the power-type energy storage unit 13 and the energy-type energy storage unit 14 are connected with the communication interface of the corresponding energy slave control unit 152 through the respective communication interfaces.
[0039] In some embodiments, the hydrogen production subsystem 12 can include a fast power response hydrogen production unit and / or a slow power response hydrogen production unit. Figure 4 A structural schematic diagram of a wind power hydrogen production system provided by still another embodiment of the present application is shown in FIG. 6. Figure 4As shown, the fast power response hydrogen production unit 121 is connected with the DC bus 16, the fast power response hydrogen production unit 121 has fast power response capability and is suitable for absorbing high-frequency components in the electric power. The slow power response hydrogen production unit 122 is connected with the DC bus 16, the power response capability of the slow power response hydrogen production unit 122 is slower than that of the fast power response hydrogen production unit 121 and is suitable for absorbing low-frequency components in the electric power. The energy main control unit 151 can adjust the proportion of the fast power response hydrogen production unit 121 and the slow power response hydrogen production unit 122 in the working state according to the power level and power fluctuation of the wind turbine 11. In the case that the power variation range of the electric energy output by the wind turbine 11 is small and the power variation frequency is relatively high, the proportion of the fast power response hydrogen production unit 121 in the working state is higher. In the case that the power variation range of the electric energy output by the wind turbine 11 is large and the power variation frequency is relatively low, the proportion of the slow power response hydrogen production unit 122 in the working state is higher. The combination configuration mode of the fast power response hydrogen production unit 121 and the slow power response hydrogen production unit 122 in the hydrogen production sub-system 12 can comprehensively consider the performance and cost of the wind power hydrogen production system.
[0040] In some examples, the fast power response hydrogen production unit 121 includes a proton exchange membrane (PEM) water electrolysis unit, and the slow power response hydrogen production unit 122 includes an alkaline water electrolysis (ALK) unit.
[0041] The wind power hydrogen production system in the embodiment can realize black start. In the case that the wind power hydrogen production system is in a starting state, the electric energy flows from the energy-type energy storage unit 14 to the power-type energy storage unit 13 to start the power-type energy storage unit 13, the electric energy flows from the energy-type energy storage unit 14 to the hydrogen production sub-system 12 to start the hydrogen production sub-system 12, and the electric energy flows from the energy-type energy storage unit 14 to the wind turbine 11 to start the wind turbine 11. Specifically, in the case of performing black start, if the electric quantity of the energy-type energy storage unit 14 meets the electric quantity requirement of starting the wind power hydrogen production system, the energy-type energy storage unit 14 discharges to supply power to the power-type energy storage unit 13 to start the power-type energy storage unit 13; when the power-type energy storage unit 13 meets the working condition, the energy-type energy storage unit 14 discharges to supply power to the hydrogen production sub-system 12 to start the hydrogen production sub-system 12 in a limited power mode, and the power-type energy storage unit 13 provides voltage support for the wind power hydrogen production system; after the hydrogen production sub-system 12 normally works, the wind turbine 11 is started, the wind turbine 11 normally generates power, the wind power hydrogen production system changes with the change of the power of the wind turbine 11, and the wind power hydrogen production system normally works.
[0042] Figure 5A schematic diagram of an example of the black start of the wind power hydrogen production system provided by the embodiments of the present application is shown in Figure 5 The black start flow of the wind power hydrogen production system can include steps a1 to a6.
[0043] In step a1, the energy management system receives an input external condition, and sends a start instruction to the energy main control unit if the external condition meets the working requirement of the wind power hydrogen production system.
[0044] In step a2, the energy main control unit determines whether the power of the energy storage unit meets the start requirement. If the start requirement is met, step a3 is performed; if the start requirement is not met, step a6 is performed.
[0045] In step a3, the energy main control unit sends an instruction to the power storage unit and the energy storage unit through the energy slave control unit to control the power storage unit to start using the power released by the energy storage unit.
[0046] In step a4, when the power storage unit meets the working condition, the hydrogen production subsystem is started in a limited power mode, the energy storage unit supplies power to the hydrogen production subsystem, and the power storage unit provides voltage support.
[0047] In step a5, after the hydrogen production subsystem works normally, the wind turbine is started.
[0048] In step a6, the energy storage unit is charged externally until the power of the energy storage unit meets the start requirement.
[0049] It should be noted that each of the embodiments in the specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other. Each embodiment focuses on the difference from other embodiments. The present application is not limited to the specific structures described above and shown in the drawings. Those skilled in the art can make various changes, modifications and additions after understanding the spirit of the present application. Moreover, in order to be brief, the detailed description of the known technology is omitted.
[0050] It will be understood by those skilled in the art that the above described embodiments are to be taken as illustrative and not restrictive, and that various features of different embodiments can be combined to achieve yet further advantageous effects. Other embodiments of the disclosed embodiments will be apparent to those skilled in the art from a consideration of the specification and practice of the disclosed embodiments. In the claims, the term "comprising" does not exclude other devices; the term "one" does not exclude a plurality; the term "first", "second", "third" etc. does not indicate any order or precedence; the term "another" means at least one; the term "at least one" means one or more; the terms "plurality" and "a plurality" mean two or more; the term "another" means at least one; the terms "including" and / or "having" etc. mean comprising. The terms "coupled" and / or "connected" do not exclude the presence of intermediate elements between the coupled or connected devices. The terms "coupled" and / or "connected", and / or "coupling" and / or "connecting" do not exclude the presence of intermediate elements between the coupled or connected devices. The term "coupled" or "connected", or "coupling" or "connecting" means that the coupled or connected devices are directly or indirectly connected.
Claims
1. A wind power hydrogen production system, characterized by, The system comprises: a wind turbine for generating electric energy; a hydrogen production subsystem connected to the wind turbine through a DC bus for absorbing the electric energy generated by the wind turbine; a power storage unit connected to the DC bus for charging or discharging the DC bus to deal with transient power fluctuations and stabilize the voltage of the DC bus; an energy storage unit connected to the DC bus for charging or discharging the DC bus to achieve electric energy buffering; a real-time communication network connected to the wind turbine, the hydrogen production subsystem, the power storage unit and the energy storage unit for obtaining data of the wind turbine, the hydrogen production subsystem, the power storage unit and the energy storage unit in real time and transmitting instructions to the wind turbine, the hydrogen production subsystem, the power storage unit and the energy storage unit.
2. The wind-to-hydrogen system of claim 1, wherein, The real-time communication network comprises: an energy master control unit; a plurality of energy slave control units, each of the wind turbine, the hydrogen production subsystem, the power storage unit and the energy storage unit being connected to one of the energy slave control units; a mesh communication line through which the energy slave control units are connected to the energy master control unit to transmit data and instructions. The energy master control unit controls the wind turbine, the hydrogen production subsystem, the power storage unit and the energy storage unit through the energy slave control units.
3. The wind-to-hydrogen system of claim 2, wherein, The real-time communication network further comprises: an energy management system connected to the energy master control unit for receiving data uploaded by the energy master control unit and sending instructions to the energy master control unit.
4. The wind power hydrogen production system of claim 2, wherein The energy slave control unit comprises: a sensor arranged in one or more of the wind turbine, the hydrogen production subsystem, the power storage unit and the energy storage unit for collecting data of one or more of the wind turbine, the hydrogen production subsystem, the power storage unit and the energy storage unit.
5. The wind power hydrogen production system of claim 2, wherein, The mesh communication line comprises a fiber ring network.
6. The wind turbine hydrogen production system according to claim 2, wherein the wind turbine, the hydrogen production subsystem, the power storage unit and the energy storage unit each have a power interface, and the wind turbine, the hydrogen production subsystem, the power storage unit and the energy storage unit are connected to the DC bus through the respective power interfaces; the energy slave control unit, the wind turbine, the hydrogen production subsystem, the power storage unit and the energy storage unit each have a communication interface, and the wind turbine, the hydrogen production subsystem, the power storage unit and the energy storage unit are connected to the communication interface of the corresponding energy slave control unit through the respective communication interfaces.
7. The wind-to-hydrogen system of claim 1, wherein, The wind turbine comprises: a wind power generation structure; a rectifier, an AC input end of the rectifier being connected to the wind power generation structure, and a DC output end of the rectifier being connected to the DC bus.
8. The wind power hydrogen production system according to claim 1, characterized in that, the power type energy storage unit comprises a flywheel energy storage unit and / or a super capacitor energy storage unit; the energy type energy storage unit comprises a battery energy storage unit and / or a pumped hydro energy storage unit.
9. The wind-to-hydrogen system of claim 1, wherein, the hydrogen production subsystem comprises: a fast power response hydrogen production unit connected to the DC bus for accommodating high frequency components in the electric power; and / or, a slow power response hydrogen production unit connected to the DC bus for accommodating low frequency components in the electric power for hydrogen production.
10. The wind power hydrogen production system according to claim 9, characterized in that, the fast power response hydrogen production unit comprises a proton exchange membrane water electrolysis hydrogen production unit; the slow power response hydrogen production unit comprises an alkaline water electrolysis hydrogen production unit.