A storage and discharge scheduling strategy for an electric-hydrogen coupled energy storage system for offshore oil and gas platforms

Abstract

This invention discloses a storage and release scheduling strategy for an electro-hydrogen coupled energy storage system for offshore oil and gas platforms. It primarily addresses the problems caused by the high uncertainty and randomness of offshore wind power output due to weather conditions and load power influenced by drilling operations, leading to source-load power mismatch and damage to offshore oil and gas operation equipment. This storage and release scheduling strategy relies on an electro-hydrogen coupled energy storage system, adjusting the storage and release status and power of the system based on the output power of the offshore wind turbines and the load power of the oil and gas platform. This strategy can achieve dynamic balance between source and load power on offshore oil and gas platforms, resolving safety issues caused by the volatility of offshore wind power and the uncertainty of load power. Furthermore, it can effectively improve the flexibility and security of the power system and enable large-scale, long-term storage of hydrogen green energy.

Description

Technical Field

[0001] This invention belongs to the field of energy storage technology, and specifically relates to a storage and dispatching strategy for an electro-hydrogen coupled energy storage system for offshore oil and gas platforms. Background Art

[0002] Since the beginning of the 21st century, the pace of global offshore oil and gas exploration and development has accelerated significantly. The total newly discovered offshore oil and gas reserves have surpassed those on land, and production continues to grow, making offshore a strategic replacement area for global oil and gas resources. Compared to onshore oil and gas, offshore oil and gas production processes have their own unique characteristics in terms of energy consumption and greenhouse gas emissions. Driven by the need for self-sufficiency in energy supply and to fully utilize their own produced oil and gas resources, offshore oil and gas platforms typically build their own power and heat stations, using associated gas and crude oil as fuels to meet their own electricity and heat needs. This energy supply method results in substantial carbon emissions and suffers from low efficiency, high energy consumption, and unstable power supply. Currently, the most mature approach to connecting offshore oil and gas platforms to clean energy is the introduction of wind power technology. However, because offshore wind power output is affected by weather, and load power is affected by drilling operations, it exhibits strong uncertainty and randomness, leading to source-load power mismatch and damage to offshore oil and gas operating equipment. Therefore, there is an urgent need for a storage and dispatch strategy for an electro-hydrogen coupled energy storage system for offshore oil and gas platforms. By using an electro-hydrogen coupled energy storage system, the source and load power of offshore oil and gas platforms can be dynamically balanced, solving the safety problems caused by the volatility of offshore wind power and the uncertainty of load power. This can effectively improve the flexibility and safety of the power system and also enable large-scale, long-term storage of hydrogen green energy. Summary of the Invention

[0003] The purpose of this invention is to provide a storage and dispatch strategy for an electro-hydrogen coupled energy storage system for offshore oil and gas platforms, thereby solving the aforementioned problems and technical requirements. The technical solution of this invention is as follows:

[0004] A storage and dispatch strategy for an electro-hydrogen coupled energy storage system for offshore oil and gas platforms.

[0005] The aforementioned storage and scheduling strategy relies on a set of electro-hydrogen coupled energy storage system hardware for scheduling.

[0006] The storage and release scheduling strategy adjusts the storage and release status and storage and release power of the energy storage system according to the output power of offshore wind power and the load power of oil and gas platforms.

[0007] The storage and scheduling strategy includes the following steps:

[0008] Step 1: Obtain the total power consumption of production equipment and living facilities on the offshore oil and gas platform. ;

[0009] Step 2: Calculate the rate of change of total power consumption caused by load fluctuations. ;

[0010] The rate of change The calculation expression is as follows

[0011]

[0012] Where ∆t is the data acquisition interval of the electro-hydrogen coupled energy storage system; for Total power consumption at any given time.

[0013] Step 3: Calculate the average power consumption of production equipment and living facilities on the offshore oil and gas platform during the time period ∆t. ;

[0014] The average power consumption The calculation expression is as follows

[0015]

[0016] Step 4: Obtain the output power of the offshore wind turbine. ;

[0017] Step 5, determine whether the electro-hydrogen coupled energy storage system stores hydrogen energy, including:

[0018] Step 5.1, if This indicates that the output power of the offshore wind turbine can meet the power consumption of the production equipment and living facilities of the offshore oil and gas platform; among which, This is the redundancy coefficient for oil and gas platforms, with a value ranging from 1.1 to 1.2.

[0019] Step 5.2, if This indicates that the output power of the offshore wind turbine exceeds the normal power consumption of the production equipment and living facilities of the offshore oil and gas platform, with an overload power of [value missing]. Overload power of offshore wind turbines Hydrogen is produced by electrolyzing seawater, and the resulting hydrogen can be stored in a hydrogen storage tank.

[0020] Step 5.3, if This indicates that the output power of the offshore wind turbines cannot meet the power consumption of the production equipment and living facilities on the offshore oil and gas platform, resulting in a power deficit of [missing information]. Offshore wind turbine power deficit The stored hydrogen energy is released and used to generate electricity through fuel cells to replenish offshore oil and gas platforms.

[0021] The above-described solution of the present invention has at least the following advantages and beneficial effects:

[0022] (1) This scheduling strategy utilizes an electric-hydrogen coupled energy storage system to achieve dynamic balance of source and load power of offshore oil and gas platforms, and solves the safety problems caused by the volatility of offshore wind power and the uncertainty of load power.

[0023] (2) This dispatch strategy can effectively improve the flexibility and security of the power system, and can also realize the large-scale and long-term storage of hydrogen green energy. Attached Figure Description

[0024] Figure 1 This invention provides a storage and dispatch strategy for an electro-hydrogen coupled energy storage system for offshore oil and gas platforms, as provided in an embodiment of the present invention. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the embodiments of the present invention include, but are not limited to, the following embodiments.

[0026] This embodiment describes an electro-hydrogen coupled energy storage system applied to offshore oil and gas platforms, including offshore oil and gas platforms, offshore wind turbines, electrolyzers, hydrogen storage tanks, and fuel cells.

[0027] See Figure 1 This invention provides a storage and dispatch strategy for an electro-hydrogen coupled energy storage system used in offshore oil and gas platforms, as an embodiment of the present invention. Figure 1 As shown, the storage and scheduling strategy includes the following steps:

[0028] Step 1: Obtain the total power consumption of production equipment and living facilities on the offshore oil and gas platform. ;

[0029] Step 2: Calculate the rate of change of total power consumption caused by load fluctuations. ;

[0030] The rate of change The calculation expression is as follows

[0031]

[0032] Where ∆t is the data acquisition interval of the electro-hydrogen coupled energy storage system.

[0033] Step 3: Calculate the average power consumption of production equipment and living facilities on the offshore oil and gas platform during the time period ∆t. ;

[0034] The average power consumption The calculation expression is as follows

[0035]

[0036] Step 4: Obtain the output power of the offshore wind turbine. ;

[0037] Step 5, determine whether the electro-hydrogen coupled energy storage system stores hydrogen energy, including:

[0038] Step 5.1, if This indicates that the output power of the offshore wind turbine can meet the power consumption of the production equipment and living facilities of the offshore oil and gas platform; among which, This is the redundancy coefficient for oil and gas platforms, with a value ranging from 1.1 to 1.2.

[0039] Step 5.2, if This indicates that the output power of the offshore wind turbine exceeds the normal power consumption of the production equipment and living facilities of the offshore oil and gas platform, with an overload power of [value missing]. Overload power of offshore wind turbines Hydrogen is produced by electrolyzing seawater, and the resulting hydrogen can be stored in a hydrogen storage tank.

[0040] Step 5.3, if This indicates that the output power of the offshore wind turbines cannot meet the power consumption of the production equipment and living facilities on the offshore oil and gas platform, resulting in a power deficit of [missing information]. Offshore wind turbine power deficit The stored hydrogen energy is released and used to generate electricity through fuel cells to replenish offshore oil and gas platforms.

[0041] The above embodiments are merely one example of the implementation of the present invention and are not intended to limit the scope of protection of the present invention. Any changes made based on the design principles of the present invention, or any non-creative modifications, should fall within the scope of protection of the present invention.

Claims

1. A storage and dispatch strategy for an electro-hydrogen coupled energy storage system for offshore oil and gas platforms, characterized in that: The storage and release scheduling strategy adjusts the storage and release status and storage and release power of the energy storage system according to the output power of offshore wind power and the load power of oil and gas platforms. The storage and scheduling strategy includes the following steps: Step 1: Obtain the total power consumption of production equipment and living facilities on the offshore oil and gas platform. ; Step 2: Calculate the rate of change of total power consumption caused by load fluctuations. ; The rate of change The calculation expression is as follows ； Where ∆t is the data acquisition interval of the electro-hydrogen coupled energy storage system; for Total power consumption at any given time; Step 3: Calculate the average power consumption of production equipment and living facilities on the offshore oil and gas platform during the time period ∆t. ; The average power consumption The calculation expression is as follows ； Step 4: Obtain the output power of the offshore wind turbine. ; Step 5, determine whether the electro-hydrogen coupled energy storage system stores hydrogen energy, including: Step 5.1, if This indicates that the output power of the offshore wind turbine can meet the power consumption of the production equipment and living facilities of the offshore oil and gas platform; among which, This is the redundancy coefficient for oil and gas platforms, with a value ranging from 1.1 to 1.

2. Step 5.2, if This indicates that the output power of the offshore wind turbine exceeds the normal power consumption of the production equipment and living facilities of the offshore oil and gas platform, with an overload power of [value missing]. Overload power of offshore wind turbines Hydrogen is produced by electrolyzing seawater, and the resulting hydrogen can be stored in a hydrogen storage tank. Step 5.3, if This indicates that the output power of the offshore wind turbines cannot meet the power consumption of the production equipment and living facilities on the offshore oil and gas platform, resulting in a power deficit of [missing information]. Offshore wind turbine power deficit The stored hydrogen energy is released and used to generate electricity through fuel cells to replenish offshore oil and gas platforms.

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