Gas turbine and hydrogen production combined ocean platform energy storage system and control method therefor

Abstract

A gas turbine and hydrogen production combined ocean platform energy storage system and a control method therefor, relating to the technical field of energy. In the system, a high pressure air storage tank is used for storing compressed high-pressure air; a hydrogen storage tank is used for storing hydrogen produced by an electrolytic hydrogen production device by means of electrolysis of seawater; an offshore platform natural gas drilling well transports the collected natural gas to a gas turbine; the hydrogen storage tank transports the stored first part of hydrogen to the gas turbine; the high pressure air storage tank transports the stored high-pressure air to the gas turbine; the gas turbine combusts by using the mixed gas generated by mixing the natural gas, the first part of hydrogen, and the high-pressure air as a fuel; the first part of power generation capacity of a gas turbine generator is used for platform maintenance, and the second part of power generation capacity is used for driving a water pump to pump seawater into a water storage tank; and a hydraulic generator is used for converting mechanical energy of water in the water storage tank into electrical energy when needed.

Description

Offshore platform energy storage system combining gas turbine and hydrogen production and control method thereof

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the Patent Office of China on March 20, 2024, with application number 202410322642.7 and invention name “Marine platform energy storage system combined with gas turbine and hydrogen production and its control method”, the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the field of energy technology, and in particular to an offshore platform energy storage system combining a gas turbine with hydrogen production and a control method thereof. Background Art

[0004] Offshore natural gas platforms are an important source of energy in the future. How to make full use of offshore natural gas platforms to provide a stable and reliable source of energy is an important issue in exploring new energy systems, and providing flexible power supply for offshore natural gas platforms is an important issue in my country's power industry.

[0005] Summary of the Invention

[0006] The present application aims to solve one of the technical problems in the related art at least to a certain extent.

[0007] To this end, one purpose of this application is to propose an offshore platform energy storage system combining a gas turbine and hydrogen production, comprising: a high-pressure gas storage tank, a gas turbine, a gas turbine generator, an offshore platform natural gas drilling well, an electrolytic hydrogen production device, a hydrogen storage tank, a water pump, a water storage tank, and a hydro-generator, wherein:

[0008] High-pressure air storage tanks are used to store compressed high-pressure air.

[0009] The hydrogen storage tank is used to store hydrogen generated by the electrolysis hydrogen production device through the electrolysis of seawater.

[0010] The offshore platform natural gas drilling well collects natural gas and transports the collected natural gas to the gas turbine, the hydrogen storage tank transports the first part of the stored hydrogen to the gas turbine, and the high-pressure gas storage tank transports the stored high-pressure air to the gas turbine.

[0011] The gas turbine burns the mixed gas generated by mixing the received natural gas, the first part of hydrogen and the high-pressure air as fuel.

[0012] Among them, when the gas turbine is in a combustion state, the first part of the power generated by the gas turbine generator inside it is used for platform maintenance, and the second part of the power generated is used to drive the pump to pump seawater into the water storage tank. Among them, the first part of the power generated is equal to the real-time power demand of the platform maintenance.

[0013] The hydro-generator is used to convert the mechanical energy of the water in the water storage tank into electrical energy for platform maintenance when the real-time power generation of the gas turbine does not meet the real-time power demand of platform maintenance or when the gas turbine stops working.

[0014] According to one embodiment of the present application, the marine platform energy storage system combining a gas turbine with hydrogen production also includes a hydrogen-powered ship, wherein: the hydrogen-powered ship is used to transport materials between the land; wherein, the power of the hydrogen-powered ship is provided by the second part of hydrogen transmitted from the hydrogen storage tank to the hydrogen-powered ship.

[0015] According to one embodiment of the present application, the marine supplies transported by the hydrogen-powered ship include a third portion of hydrogen transferred from the hydrogen storage tank to the hydrogen-powered ship.

[0016] According to one embodiment of the present application, the first height corresponding to the water storage tank is greater than the second height corresponding to the hydro-generator.

[0017] According to one embodiment of the present application, the marine platform energy storage system combining a gas turbine with hydrogen production further includes wind blades and an air compressor, wherein the air compressor is used to compress the air driven by the wind blades and generate high-pressure air to be stored in a high-pressure air storage tank.

[0018] According to one embodiment of the present application, the marine platform energy storage system combining a gas turbine with hydrogen production further includes a solar panel, which is used to provide electrical energy for the electrolytic hydrogen production device.

[0019] The second object of the present application is to propose a control method for an offshore platform energy storage system combining a gas turbine and hydrogen production, comprising: obtaining the real-time electricity consumption demand of the offshore platform energy storage system combining a gas turbine and hydrogen production; obtaining the power generation parameters of the gas turbine generator located in the gas turbine; judging whether the real-time power generation of the gas turbine generator meets the real-time power consumption demand based on the power generation parameters; if the real-time power generation of the gas turbine generator cannot meet the real-time power consumption demand, controlling the hydro-generator to convert the mechanical energy of the water in the water storage tank into electrical energy to maintain the offshore platform energy storage system combining a gas turbine and hydrogen production; wherein, the control method for the offshore platform energy storage system combining a gas turbine and hydrogen production is applied to the offshore platform energy storage system combining a gas turbine and hydrogen production as in the first aspect embodiment.

[0020] According to one embodiment of the present application, whether the real-time power generation of the gas turbine generator meets the real-time power demand is judged based on the power generation parameters, including: if it is determined based on the power generation parameters that the gas turbine generator is in a non-working state, then it is determined that the real-time power generation of the gas turbine generator cannot meet the real-time power demand.

[0021] According to one embodiment of the present application, whether the real-time power generation of the gas turbine generator meets the real-time power demand is judged based on the power generation parameters, including: if it is determined based on the power generation parameters that the gas turbine generator is in a non-working state, then it is determined that the real-time power generation of the gas turbine generator cannot meet the real-time power demand.

[0022] According to one embodiment of the present application, whether the real-time power generation of the gas turbine generator meets the real-time power consumption demand is judged according to the power generation parameters, including: if it is determined according to the power generation parameters that the gas turbine generator is in an operating state and the real-time power generation is less than the real-time power consumption demand, then it is determined that the real-time power generation of the gas turbine generator cannot meet the real-time power consumption demand.

[0023] According to one embodiment of the present application, the control method of the marine platform energy storage system combined with a gas turbine and hydrogen production also includes: if the real-time power generation of the gas turbine generator can meet the real-time power demand, controlling the first part of the power generation of the gas turbine generator to be used for maintaining the marine platform energy storage system combined with the gas turbine and hydrogen production, and the second part of the power generation to drive the pump to pump seawater into the water storage tank, wherein the first part of the power generation is equal to the real-time power demand.

[0024] This application achieves at least the following beneficial effects:

[0025] The marine platform energy storage system combining gas turbines and hydrogen production proposed in this application converts wind energy, solar energy and natural gas into hydrogen energy, reduces carbon emissions, realizes the coordinated use of multiple energy sources, makes full use of marine resources, improves energy utilization efficiency, and can provide a more flexible and reliable power supply. At the same time, the system is highly friendly to the marine environment and is conducive to sustainable development.

[0026] This application places the more dangerous hydrogen production process at sea, reducing the impact on the surrounding area when an accident occurs, and has the advantage of reducing the social risks brought by the hydrogen production device.

[0027] This application adopts the concept of distributed energy stations, which can be flexibly started and stopped independently of the traditional power grid, making it easy to change the system layout according to user needs, which is beneficial to the flexible production needs of offshore platforms. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0029] FIG1 is a schematic diagram of an offshore platform energy storage system combining a gas turbine and hydrogen production, shown in one embodiment of the present application.

[0030] FIG2 is a schematic diagram of an exemplary implementation of a control method for an offshore platform energy storage system combining a gas turbine with hydrogen production, shown in one embodiment of the present application. DETAILED DESCRIPTION

[0031] The following describes in detail embodiments of the present application, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0032] FIG1 is a schematic diagram of a gas turbine and hydrogen production combined marine platform energy storage system shown in the present application. As shown in FIG1 , the gas turbine and hydrogen production combined marine platform energy storage system includes: a high-pressure gas storage tank, a gas turbine, a gas turbine generator, an offshore platform natural gas drilling well, an electrolytic hydrogen production device, a hydrogen storage tank, a water pump, a water storage tank and a hydro-generator, wherein:

[0033] High-pressure air storage tanks are used to store compressed high-pressure air.

[0034] Hydrogen storage tanks are used to store hydrogen generated by electrolysis of seawater in a hydrogen electrolysis device, storing the energy in a chemical form for easy release and utilization when needed. Solar panels can be used to provide electricity for the hydrogen electrolysis device.

[0035] The offshore platform natural gas drilling well collects natural gas and transports the collected natural gas to the gas turbine, the hydrogen storage tank transports the first part of the stored hydrogen to the gas turbine, and the high-pressure gas storage tank transports the stored high-pressure air to the gas turbine.

[0036] The gas turbine burns the mixed gas generated by mixing the received natural gas, the first portion of hydrogen, and high-pressure air as fuel. This reduces the use of traditional fuels, lowers greenhouse gas emissions, and meets environmental protection requirements.

[0037] Among them, when the gas turbine is in a combustion state, the first part of the power generated by the gas turbine generator inside it is used for platform maintenance, and the second part of the power generated is used to drive the pump to pump seawater into the water storage tank. Among them, the first part of the power generated is equal to the real-time power demand of the platform maintenance.

[0038] The hydro-generator is used to convert the mechanical energy of the water in the water storage tank into electrical energy for platform maintenance when the real-time power generation of the gas turbine does not meet the real-time power demand of platform maintenance or when the gas turbine stops working.

[0039] The marine platform energy storage system combining gas turbines and hydrogen production proposed in this application converts wind energy, solar energy and natural gas into hydrogen energy, reduces carbon emissions, realizes the coordinated use of multiple energy sources, makes full use of marine resources, improves energy utilization efficiency, and can provide a more flexible and reliable power supply. At the same time, the system is highly friendly to the marine environment and is conducive to sustainable development.

[0040] This application places the more dangerous hydrogen production process at sea, reducing the impact on the surrounding area when an accident occurs, and has the advantage of reducing the social risks brought by the hydrogen production device.

[0041] This application adopts the concept of distributed energy stations, which can be flexibly started and stopped independently of the traditional power grid, making it easy to change the system layout according to user needs, which is beneficial to the flexible production needs of offshore platforms.

[0042] Optionally, the marine platform energy storage system combining gas turbines and hydrogen production also includes a hydrogen-powered ship, wherein: the hydrogen-powered ship is used to transport materials to and from the land; wherein, the power of the hydrogen-powered ship is provided by the second part of hydrogen transmitted from the hydrogen storage tank to the hydrogen-powered ship.

[0043] Optionally, the marine cargo transported by the hydrogen-powered vessel includes a third portion of hydrogen transferred from the hydrogen storage tank to the hydrogen-powered vessel. Since hydrogen is a clean energy source, transporting some of the hydrogen generated at sea to land will help promote the use of clean energy on land and contribute to sustainable development.

[0044] Optionally, the first height corresponding to the water storage tank is greater than the second height corresponding to the hydro-generator, so as to provide sufficient potential energy so that the water has greater kinetic energy during the falling process.

[0045] Optionally, the marine platform energy storage system combining a gas turbine with hydrogen production further includes wind blades and an air compressor, wherein the air compressor is used to compress the air driven by the wind blades and generate high-pressure air to be stored in a high-pressure air storage tank.

[0046] FIG2 is a schematic diagram of an exemplary embodiment of a control method for a gas turbine-hydrogen-combined offshore platform energy storage system according to the present application. The method is applied to the gas turbine-hydrogen-combined offshore platform energy storage system described in detail in the above embodiment. As shown in FIG2 , the control method for the gas turbine-hydrogen-combined offshore platform energy storage system includes the following steps:

[0047] S201, obtaining the real-time electricity demand of the marine platform energy storage system combining gas turbines and hydrogen production.

[0048] Among them, in this application, the real-time electricity demand refers to the electricity demand required to maintain the marine platform energy storage system that combines gas turbines and hydrogen production.

[0049] S202: Acquire power generation parameters of a gas turbine generator located in the gas turbine.

[0050] S203: Determine whether the real-time power generation of the gas turbine generator meets the real-time power demand based on the power generation parameters.

[0051] If it is determined based on the power generation parameters that the gas turbine generator is in a non-operating state, it is determined that the real-time power generation of the gas turbine generator cannot meet the real-time power demand.

[0052] If it is determined based on the power generation parameters that the gas turbine generator is in an operating state and the real-time power generation is less than the real-time power demand, it is determined that the real-time power generation of the gas turbine generator cannot meet the real-time power demand.

[0053] S204: If the real-time power generation of the gas turbine generator cannot meet the real-time power demand, control the hydro-generator to convert the mechanical energy of the water in the water storage tank into electrical energy to maintain the marine platform energy storage system combining the gas turbine and hydrogen production.

[0054] In the embodiment of the present application, when the gas turbine generator cannot meet the power demand, the mechanical energy of the water in the water storage tank is converted into electrical energy, and the stability of the platform's power supply is maintained through the hydro-generator, making the entire system more robust. Even when the gas turbine generator fails or its performance degrades, the power supply can still be maintained, ensuring the reliability of the marine platform energy storage system. Through this intelligent energy management method, renewable resources can be utilized to the greatest extent to meet power demand, which helps to reduce dependence on traditional energy, thereby reducing energy consumption, reducing emissions, and achieving the goals of energy conservation and environmental protection.

[0055] Alternatively, if the real-time power generation of the gas turbine generator can meet the real-time power demand, the first portion of the power generated by the gas turbine generator is controlled to be used to maintain the offshore platform energy storage system that combines the gas turbine with hydrogen production, and the second portion of the power generated is used to drive a pump to pump seawater into the water storage tank, where the first portion of the power generated is equal to the real-time power demand. This allows the system to effectively allocate power generation, while simultaneously meeting power demand, and use excess power generated to drive a pump to pump seawater into the water storage tank. This allows the system to maintain power supply in the event of a gas turbine generator failure or performance degradation.

[0056] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0057] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0058] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0059] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A marine platform energy storage system combining a gas turbine and hydrogen production, characterized in that: include: High-pressure gas storage tanks, gas turbines, gas turbine generators, offshore platform natural gas drilling, electrolysis hydrogen production equipment, hydrogen storage tanks, water pumps, water storage tanks and hydro-generators, including: The high-pressure gas storage tank is used to store compressed high-pressure air; The hydrogen storage tank is used to store hydrogen generated by electrolyzing seawater by the electrolysis hydrogen production device; The offshore platform natural gas drilling well collects natural gas and transports the collected natural gas to the gas turbine, the hydrogen storage tank transports the stored first portion of hydrogen to the gas turbine, and the high-pressure gas storage tank transports the stored high-pressure air to the gas turbine; The gas turbine burns the mixed gas generated by mixing the received natural gas, the first portion of hydrogen and the high-pressure air as fuel; When the gas turbine is in combustion, a first portion of the power generated by the gas turbine generator therein is used for platform maintenance, and a second portion of the power generated is used to drive the pump to pump seawater into the water storage tank, wherein the first portion of the power generated is equal to the real-time power demand for platform maintenance; The hydro-generator is used to convert the mechanical energy of the water in the water storage tank into electrical energy for platform maintenance when the real-time power generation of the gas turbine does not meet the real-time power consumption demand of the platform maintenance or when the gas turbine stops working.

2. The marine platform energy storage system combining a gas turbine and hydrogen production according to claim 1, characterized in that: The system also includes a hydrogen powered ship, wherein: The hydrogen-powered ship is used for transporting materials to and from land; The power of the hydrogen-powered ship is provided by the second portion of hydrogen transmitted from the hydrogen storage tank to the hydrogen-powered ship.

3. The marine platform energy storage system combining a gas turbine and hydrogen production according to claim 2, characterized in that: The marine materials transported by the hydrogen-powered ship include a third portion of hydrogen transferred from the hydrogen storage tank to the hydrogen-powered ship.

4. The marine platform energy storage system combining a gas turbine and hydrogen production according to claim 3, characterized in that: The first height corresponding to the water storage tank is greater than the second height corresponding to the hydro-generator.

5. The marine platform energy storage system combining a gas turbine and hydrogen production according to claim 4, characterized in that: The system further comprises a wind blade and an air compressor, wherein: The air compressor is used to compress the air driven by the wind blades and generate high-pressure air to be stored in the In a high-pressure gas tank.

6. The marine platform energy storage system combining a gas turbine and hydrogen production according to claim 5, characterized in that: The system further comprises a solar panel, which is used to provide electrical energy for the electrolysis hydrogen production device.

7. A control method for an offshore platform energy storage system combining a gas turbine and hydrogen production, characterized in that: include: Obtain the real-time electricity demand of the offshore platform energy storage system combining gas turbines and hydrogen production; obtaining power generation parameters of a gas turbine generator located within the gas turbine; determining, based on the power generation parameters, whether the real-time power generation of the gas turbine generator meets the real-time power consumption demand; If the real-time power generation of the gas turbine generator cannot meet the real-time power demand, control the hydro-generator to convert the mechanical energy of the water in the water storage tank into electrical energy to maintain the marine platform energy storage system combining the gas turbine and hydrogen production; The control method of the marine platform energy storage system combining a gas turbine with hydrogen production is applied to the marine platform energy storage system combining a gas turbine with hydrogen production as claimed in any one of claims 1 to 6.

8. The control method of the marine platform energy storage system combining a gas turbine and hydrogen production according to claim 7, characterized in that: The determining, based on the power generation parameters, whether the real-time power generation of the gas turbine generator meets the real-time power consumption demand includes: If it is determined according to the power generation parameters that the gas turbine generator is in a non-operating state, it is determined that the real-time power generation of the gas turbine generator cannot meet the real-time power consumption demand.

9. The control method of the marine platform energy storage system combining a gas turbine and hydrogen production according to claim 7, characterized in that: The determining, based on the power generation parameters, whether the real-time power generation of the gas turbine generator meets the real-time power consumption demand includes: If it is determined according to the power generation parameters that the gas turbine generator is in an operating state and the real-time power generation is less than the real-time power demand, it is determined that the real-time power generation of the gas turbine generator cannot meet the real-time power demand.

10. The control method of the marine platform energy storage system combining a gas turbine and hydrogen production according to claim 7, characterized in that: The method further comprises: If the real-time power generation of the gas turbine generator can meet the real-time power demand, the first part of the power generation of the gas turbine generator is controlled to be used to maintain the marine platform energy storage system combined with the gas turbine and hydrogen production, and the second part of the power generation is used to drive the pump to pump seawater into the water storage tank, wherein the first part of the power generation is equal to the real-time power demand.

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