A green electricity resource reuse collaborative management and control system and method for abandoned mines

Abstract

This invention discloses a collaborative management and control system and method for the reuse of green energy resources in abandoned mines, relating to the field of green energy resource reuse technology. The green energy generated by the green energy unit is used to power a smart computing center in real time via a collaborative control unit. The collaborative control unit determines the amount of green energy generated and the real-time power consumption of the smart computing center. When green energy is sufficient, the collaborative control unit controls the energy storage unit to store excess green energy. When green energy is insufficient, the collaborative control unit controls the energy storage unit to power the smart computing center. Simultaneously, the exhaust gas generated by the energy storage unit is treated by a gas treatment unit and then used to cool the smart computing center. A temperature threshold is set; if the temperature of the smart computing center is below the threshold, the power cooling system is shut off; otherwise, it is turned on. The residual cool air after heat exchange enters the mine's ventilation system through distribution pipes from the gas treatment unit. This invention uses the above-ground and underground space of abandoned mines as a carrier to improve the comprehensive energy utilization efficiency.

Description

Technical Field

[0001] This invention relates to the field of green energy resource reuse technology, and in particular to a collaborative management and control system and method for green energy resource reuse in abandoned mines. Background Technology

[0002] With the development of artificial intelligence and the digital economy, intelligent computing centers are facing higher demands for stable power supply and efficient heat dissipation. Underground spaces such as caverns and abandoned mine shafts possess characteristics such as low temperature fluctuations, good spatial enclosure, and small footprint, making them suitable for deploying underground intelligent computing centers. However, the operation of high-density computing equipment still requires a continuous supply of power and cooling; relying primarily on grid power and conventional electric cooling results in high energy consumption. Abandoned mine surface goaf areas, mine slopes, spoil heaps, and closed tailings ponds are suitable for arranging photovoltaic or wind power generation devices, but the output of new energy sources is fluctuating and intermittent, requiring energy storage systems for mitigation. Constructing underground compressed air energy storage facilities in abandoned mine shafts can support the consumption of green electricity in mining areas and provide stable power supply for underground intelligent computing centers. However, the low-temperature exhaust gas generated after the release of energy by existing compressed air energy storage systems is often not fully utilized in a cascade manner, and its cooling capacity and air volume are not effectively coupled with the cooling needs of underground intelligent computing centers and the ventilation and cooling requirements of mines.

[0003] Therefore, existing technologies still lack a technical solution that uses the above-ground and underground space of abandoned mines as a carrier to uniformly couple green electricity in the mining area, compressed air energy storage, underground intelligent computing center and mine ventilation and cooling system, and uses the released low-temperature exhaust gas for cooling of underground intelligent computing center and mine ventilation and cooling. Summary of the Invention

[0004] The purpose of this invention is to address the current lack of existing technologies that utilize the above-ground and underground spaces of abandoned mines for the coordinated management and control of green energy resources, compressed air energy storage, underground intelligent computing centers, and mine ventilation and cooling systems. This invention proposes a method for the coordinated management and control of green energy resource reuse in abandoned mines, comprising: Green electricity unit, intelligent computing center, energy storage unit, gas processing unit, and collaborative control unit; The green electricity generated by the green electricity unit first passes through the collaborative control unit to supply power to the intelligent computing center in real time. The collaborative control unit compares the amount of green electricity generated with the real-time power consumption of the intelligent computing center. When the generated green electricity exceeds the real-time power consumption of the intelligent computing center, the collaborative control unit controls the energy storage unit to store the excess green electricity. When the generated green electricity is less than the real-time power consumption of the intelligent computing center, the collaborative control unit controls the energy storage unit to supply power to the intelligent computing center. At the same time, the exhaust gas generated by the energy storage unit is processed by the gas treatment unit and then enters the intelligent computing center for cooling. A temperature threshold is set. When the temperature of the intelligent computing center is lower than the threshold, the power cooling of the intelligent computing center is turned off, and vice versa. The residual cold air after heat exchange enters the mine ventilation system through the gas treatment unit distribution pipe. An energy storage unit is also installed as an auxiliary air supply branch to assist the mine's ventilation system.

[0005] Furthermore, the energy storage unit includes an electric motor, a compressor unit, a gas storage tank, an expander unit, and a generator; When the generated green electricity is less than the real-time power consumption of the intelligent computing center, the collaborative control unit controls the motor to start, and the green electricity generated by the green electricity unit enables the compressor unit to work, generating compressed air which is stored in the gas storage tank. When the generated green electricity is less than the real-time power consumption of the intelligent computing center, the collaborative control unit controls the expander to use the compressed air from the gas storage tank to generate mechanical work to power the generator and supply power to the intelligent computing center.

[0006] Furthermore, the intelligent computing center and gas storage facility are located underground.

[0007] Furthermore, the collaborative control unit predicts the power demand of the underground intelligent computing center based on the current measured power consumption and task scheduling information within the future control cycle. The predicted power consumption of the intelligent computing center is:

[0008] in, express Predicted power consumption at any given time; For power supply safety margin; This is the basic power consumption of the intelligent computing center; for The expected number of computing power devices of type r to be operational at time r; R represents the number of computing power device types. The unloaded power of the r-th type of computing power device; This represents the full-load power of the r-th type of computing device; For the r-th type of computing power device Real-time estimated load rate; The collaborative control unit obtains the predicted power consumption. Compared with the current measured power consumption The larger value in the range is used as the dispatched electricity demand:

[0009] in, Indicates prediction Real-time scheduling of electricity demand; t represents the current time; This represents a prediction time step.

[0010] Furthermore, when the real-time output of green electricity exceeds the power demand of the underground intelligent computing center, the surplus green electricity power is:

[0011] in, This represents the surplus green electricity power at time t; express Real-time output of the green energy unit; This indicates the electricity demand at time t. This represents the power consumption of the auxiliary system at time t; The collaborative control unit controls the operation of the compressor unit based on surplus green electricity. The operating power of the compressor unit is:

[0012] in, This represents the operating power of the compressor unit at time t; This indicates the maximum operating power of the compressor unit; This indicates the upper limit of the permissible gas storage conditions at the gas storage facility; This indicates the gas storage status of the gas storage facility at time t; Indicates the energy storage efficiency of compression; Indicates the control cycle; The gas storage status of the gas storage facility in the next control cycle is as follows:

[0013] in, This indicates the gas storage status of the gas storage facility at time t+1; This represents the power output of the energy storage unit at time t; Indicates the energy release efficiency for power generation; This represents the conversion factor between the auxiliary air supply flow rate and the change in gas storage status. express The auxiliary compressed air supply flow rate of the gas storage tank at all times; When green electricity output is insufficient, the power shortage for the intelligent computing center is:

[0014] in, This indicates the power shortage at the intelligent computing center at time t; This indicates the electricity demand at time t. The collaborative control unit prioritizes controlling the energy storage unit to release energy and generate electricity to supplement the power supply of the underground intelligent computing center; The energy storage unit releases the following power:

[0015] in, This represents the power output of the energy storage unit at time t; This indicates the power shortage at the intelligent computing center at time t; This represents the maximum energy release and power generation capacity of the energy storage unit. To improve the efficiency of energy release and power generation; This indicates the gas storage status of the gas storage facility at time t; This represents the lower limit of the permissible gas storage conditions for the gas storage facility; Indicates the control cycle.

[0016] Furthermore, during the energy storage unit's energy release and power generation process, the low-temperature exhaust gas at the expander outlet provides the following cooling capacity:

[0017] in, This indicates that the low-temperature exhaust gas provides cooling at time t; air density; The specific heat capacity of air at constant pressure; Let be the flow rate of the low-temperature exhaust gas at the outlet of the expander unit at time t; For reference temperature; Let t be the temperature of the low-temperature exhaust gas. The cooling demand of the intelligent computing center is determined based on its dispatch power demand:

[0018] in, Indicates prediction Cooling requirements of the real-time intelligent computing center; This is the conversion factor between the electrical load and cooling load of the underground intelligent computing center. express Real-time scheduling of electricity demand; The distribution of cooling capacity in the low-temperature exhaust gas meets the following requirements:

[0019]

[0020] in, express Cooling energy is constantly allocated to the intelligent computing center; This indicates that the low-temperature exhaust gas provides cooling at time t; Indicates prediction Cooling requirements of the real-time intelligent computing center; for The cooling capacity is constantly allocated to the mine ventilation system.

[0021] Furthermore, based on the following constraints, determine whether to activate the auxiliary air supply branch to assist the mine ventilation system:

[0022]

[0023]

[0024]

[0025] in, Let t be the temperature of the gas entering the mine ventilation system at time t; The lower limit of the temperature of the gas entering the ore. The upper limit of the allowable temperature of the gas entering the ore; Let be the oxygen concentration at time t; The lower limit of permissible oxygen concentration; Let be the gas concentration at time t; The upper limit of permissible gas concentration; Let t be the concentration of harmful gas. The upper limit of permissible concentration of harmful gases; If any safety constraint is not met, the coordinated control unit shuts down the auxiliary air supply branch.

[0026] This invention also proposes a collaborative management and control system for the reuse of green energy resources in abandoned mines, used to implement the above-mentioned method, including: The system comprises a green energy unit, a smart computing center, an energy storage unit, a gas processing unit, and a collaborative control unit. The energy storage unit includes an electric motor, a compressor unit, a gas storage tank, an expander unit, and a generator. The smart computing center and the gas storage tank are located underground in the abandoned mine.

[0027] The beneficial effects of the technical solution provided by this invention are: This invention utilizes the above-ground and underground spaces of abandoned mines as a carrier to coordinate and manage green electricity, compressed air energy storage, underground intelligent computing centers, and mine ventilation and cooling systems. By deploying green electricity generation and underground intelligent computing centers in abandoned mines, it achieves the composite utilization of above-ground and underground space resources. Green electricity is prioritized for supplying the underground intelligent computing center, and surplus electricity is stored through compressed air, improving the on-site absorption capacity of green electricity in the mining area. When green electricity is insufficient, compressed air energy storage releases electricity to provide stable power support for the underground intelligent computing center. The low-temperature exhaust gas after compressed air energy storage release is first used for cooling the underground intelligent computing center, and then the heat-exchanged residual cold air is connected to the mine ventilation system, achieving a two-stage cascade utilization of the low-temperature exhaust gas's cooling capacity and air volume, thus improving the comprehensive utilization efficiency of the compressed air energy storage system. Attached Figure Description

[0028] Figure 1 This is a block diagram of a collaborative management method for the reuse of green electricity resources in abandoned mines, as an example of the present invention. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0030] Intelligent computing centers are characterized by high power consumption, high heat dissipation requirements, and the uninterrupted nature of cloud computing operations, placing higher demands on power supply system configurations. For the power supply system of intelligent computing centers, space utilization and green, low-carbon technologies must be considered. Currently, the utilization of underground space in abandoned mines is insufficient, and the on-site absorption capacity of green electricity in mining areas is limited. When using compressed air for green electricity storage, the low-temperature exhaust gas released is not fully utilized in a cascade manner. Furthermore, the cooling energy consumption of intelligent computing centers is high, and the independent operation of mine ventilation and cooling systems also consumes significant energy. To address these issues, this invention proposes a collaborative management and control system for the reuse of green electricity resources in abandoned mines. A block diagram of an example of this invention's collaborative management and control method for the reuse of green electricity resources in abandoned mines is shown below. Figure 1 Specifically, it includes: Green electricity unit, intelligent computing center, energy storage unit, gas processing unit and collaborative control unit.

[0031] Specifically, the green energy unit includes photovoltaic power generation devices and / or wind power generation devices, which are installed in abandoned mine goaf areas, mine slopes, spoil heaps, closed tailings ponds, or idle land in the mining area. This fully utilizes the surface space of abandoned mines. The intelligent computing center has certain requirements for the size of the deployment site, heat dissipation, and ventilation capabilities. Existing ventilation, exhaust gas treatment, and space resources in abandoned mines can be reused, allowing the intelligent computing center to be deployed underground in the abandoned mine. The energy storage unit includes electric motors, compressor units, gas storage tanks, expanders, and generators. The gas storage tank is located in abandoned mine shafts, abandoned roadways, underground goaf areas, or reinforced underground chambers. The gas storage tank can be constructed using a combined load-bearing structure of surrounding rock-lining-sealing layer, surrounding rock-lining-steel lining, or surrounding rock-grouting reinforcement layer-lining-sealing layer, depending on the integrity of the surrounding rock, burial depth, airtightness requirements, and operating pressure level of the abandoned mine shaft or underground mine shaft. The aforementioned structure enhances the pressure resistance and airtightness of underground lined gas storage facilities. Its specific form can be determined based on engineering geological conditions and operating pressure requirements. Underground gas storage facilities directly utilize abandoned mine goafs or natural caverns, eliminating geological surveying costs and civil engineering expenses. Deep underground soil and rock maintain a constant low temperature year-round. This environment significantly reduces thermal expansion and contraction losses during compressed air storage, maintaining the gas's high density. Compressed air energy storage typically involves high pressure; underground enclosed spaces possess natural explosion-proof and explosion-suppression capabilities. Treated underground rock strata or lined storage facilities offer excellent airtightness, effectively preventing gas leakage and ensuring long-term energy storage capacity. Compared to the volume limitations of surface steel tanks, underground caverns can achieve massive volumes in the millions of cubic meters. This is highly suitable for high-energy-consuming scenarios like intelligent computing centers that require long-term, high-power backup power. Electric motors, compressor units, expanders, and generators are located on the surface for convenient control and maintenance.

[0032] The energy storage unit serves two purposes: firstly, it converts surplus electricity into compressed air for storage; secondly, it converts compressed air into electricity when power is needed for the intelligent computing center. The collaborative control unit determines whether the real-time supply of green electricity to the intelligent computing center is sufficient or insufficient. When there is a surplus, the control unit operates the motor, causing the compressor unit to convert the surplus green electricity into compressed air and store it in the air storage tank. When the real-time supply of green electricity to the intelligent computing center is insufficient, the control unit controls the expander to operate using the compressed air from the air storage tank, generating mechanical work to power the generator, which, together with the green electricity unit, supplies power to the intelligent computing center.

[0033] After generating electricity, the expander unit discharges low-temperature exhaust gas, which is then fed into a gas processing unit. This unit includes a cooling valve, a mixing valve, a pressure regulator, and a dehumidifier. The gas processing unit dehumidifies, filters, temperature-regulates, mixes, stabilizes, and regulates the airflow of the exhaust gas before it is delivered via the cooling valve to the cold aisles, server racks, air heat exchangers, air-liquid heat exchangers, or liquid-cooled heat exchangers in the intelligent computing center. A temperature threshold is set; when the temperature in the intelligent computing center is below the threshold, the power cooling system is shut off to save electricity; conversely, when the temperature is above the threshold, the power cooling system is turned on to compensate for insufficient cooling of the low-temperature exhaust gas. The residual cool air after heat exchange enters the mine ventilation system through the gas processing unit's distribution pipes. This mine ventilation system is located in a mine currently being mined next to an abandoned mine. The entire mine includes both abandoned and currently being mined mines.

[0034] The low-temperature exhaust gas emitted by the expander unit after generating electricity is a readily available, zero-cost cold source, ideally suited for direct use in intelligent computing centers requiring powerful cooling. This saves on the power consumption of the intelligent computing center's power-cooled systems. Furthermore, the gas processing unit replaces the hot air from the intelligent computing center, solving the underground heat dissipation problem. The replaced gas can be reused, flowing along with the remaining treated low-temperature exhaust gas into the mine ventilation system via the gas processing unit's distribution pipeline. This invention also includes a compressed air auxiliary supply branch from the gas storage facility, used to assist mine ventilation when there is surplus compressed air. The mine ventilation system has two types of incoming air sources: the first type is the residual cold air after heat exchange in the underground intelligent computing center; the second type is the surplus compressed air from the underground gas storage facility after processing by the compressed air auxiliary supply branch. The collaborative control unit controls the first and second types of incoming air sources to connect to the mine ventilation system individually or simultaneously, based on underground temperature, underground humidity, mine air volume requirements, oxygen concentration, methane concentration, and harmful gas concentration.

[0035] The collaborative control unit is the core of the control system. It is connected to the green electricity unit, compressor unit, gas storage, expander unit, generator unit, underground intelligent computing center, gas processing unit, compressed air auxiliary supply branch of gas storage, and mine ventilation system. It is used to dynamically control the green electricity distribution, compressed energy storage, energy release power generation, low temperature exhaust gas cooling, residual cold air ventilation, compressed air auxiliary supply of gas storage, and safety bypass switching based on the real-time output of green electricity, the power load of underground intelligent computing center, the pressure of underground lining gas storage, the remaining capacity of underground lining gas storage, the inlet air temperature of underground intelligent computing center, the return air temperature of underground intelligent computing center, the exhaust gas temperature of expander unit, exhaust gas humidity, exhaust gas flow rate, underground temperature, underground humidity, mine air volume demand, oxygen concentration, gas concentration, and harmful gas concentration.

[0036] The intelligent computing side collects computing load, inlet air temperature, return air temperature and cooling requirements; the exhaust gas side collects temperature, humidity, pressure and flow rate; the mine side collects underground temperature, humidity, air volume, oxygen concentration and gas concentration.

[0037] The present invention specifically provides the above-described embodiments: First, the collaborative control unit predicts the power demand of the underground intelligent computing center based on the current measured power consumption and task scheduling information within the future control cycle. Let the prediction time after the t-th control cycle be... The predicted power consumption of the intelligent computing center is:

[0038] in, express Predicted power consumption at any given time; This is a safety margin for power supply, used to avoid insufficient power supply due to underestimation of power supply. This refers to the basic power consumption of the intelligent computing center, including the power consumption of network equipment, storage devices, monitoring systems, lighting, fire protection, and auxiliary control equipment. for The expected number of computing power devices of type r to be operational at time r; R represents the number of computing power device types. The unloaded power of the r-th type of computing power device; This represents the full-load power of the r-th type of computing device; For the r-th type of computing power device Expected load rate at all times.

[0039] To avoid insufficient power supply due to underestimation of power consumption, the collaborative control unit takes the predicted power consumption. Compared with the current measured power consumption The larger value in the range is used as the dispatched electricity demand:

[0040] in, Indicates prediction Real-time scheduling of electricity demand; t represents the current time; This represents a prediction time step.

[0041] When the real-time output of green electricity exceeds the power demand of the underground intelligent computing center, the surplus green electricity power is:

[0042] in, This represents the surplus green electricity power at time t; express Real-time output of the green energy unit, including real-time power generation of photovoltaic power generation devices and / or wind power generation devices; This indicates the electricity demand at time t. The power consumption of the auxiliary system at time t is represented by the power consumption of the auxiliary system, which includes one or more of the following: gas handling unit, ventilation and regulation equipment, valve actuator, monitoring equipment, and collaborative control unit.

[0043] The collaborative control unit controls the operation of the compressor unit based on surplus green electricity. The operating power of the compressor unit is:

[0044] in, This represents the operating power of the compressor unit at time t; This indicates the maximum operating power of the compressor unit; This indicates the upper limit of the permissible gas storage conditions at the gas storage facility; This indicates the gas storage status of the gas storage facility at time t; Indicates the energy storage efficiency of compression; Indicates the control cycle.

[0045] The gas storage status of the gas storage facility in the next control cycle is as follows:

[0046] in, This indicates the gas storage status of the gas storage facility at time t+1; This represents the power output of the energy storage unit at time t; Indicates the energy release efficiency for power generation; This represents the conversion factor between the auxiliary air supply flow rate and the change in gas storage status. express The auxiliary compressed air supply flow rate of the gas storage tank at all times; The amount of gas or equivalent energy stored that is added when the compressor unit is charged; The amount of gas or equivalent energy stored for the release of energy to generate electricity; The amount of gas stored to supplement the air supply.

[0047] When green electricity output is insufficient, the power shortage for the intelligent computing center is:

[0048] in, This indicates the power shortage at the intelligent computing center at time t; This indicates the electricity demand at time t. The power consumption of the auxiliary system at time t is represented. The auxiliary system includes one or more of the following: a gas handling unit, a ventilation and regulating device, a valve actuator, a monitoring device, and a collaborative control unit. express Real-time output of the green energy unit, including real-time power generation of photovoltaic and / or wind power generation devices.

[0049] The collaborative control unit prioritizes controlling the energy storage unit to release energy to supplement the power consumption of the underground intelligent computing center. The energy storage unit's energy release power is:

[0050] in, This represents the power output of the energy storage unit at time t; This indicates the power shortage at the intelligent computing center at time t; This represents the maximum energy release and power generation capacity of the energy storage unit. To improve the efficiency of energy release and power generation; This indicates the gas storage status of the gas storage facility at time t; This represents the lower limit of the permissible gas storage conditions for the gas storage facility; Indicates the control cycle.

[0051] During the energy storage unit's energy release and power generation process, the low-temperature exhaust gas at the expander unit outlet provides the following cooling capacity:

[0052] in, This indicates that the low-temperature exhaust gas provides cooling at time t; air density; The specific heat capacity of air at constant pressure; Let be the flow rate of the low-temperature exhaust gas at the outlet of the expander unit at time t; For reference temperature; Let t be the temperature of the low-temperature exhaust gas at time t.

[0053] The cooling demand of the intelligent computing center is determined based on its dispatch power demand:

[0054] in, Indicates prediction Cooling requirements of the real-time intelligent computing center; This is the conversion factor between the electrical load and cooling load of the underground intelligent computing center. express Power demand is constantly monitored.

[0055] To ensure priority cooling for the intelligent computing center, the distribution of low-temperature exhaust gas cooling capacity must meet the following requirements:

[0056]

[0057] in, express Cooling energy is constantly allocated to the intelligent computing center; This indicates that the low-temperature exhaust gas provides cooling at time t; Indicates prediction Cooling requirements of the real-time intelligent computing center; for The cooling capacity is allocated to the mine ventilation system at all times. The above constraints are to ensure that the low-temperature exhaust gas prioritizes the cooling needs of the underground intelligent computing center; when there is surplus cooling capacity or surplus air volume in the low-temperature exhaust gas, some of the low-temperature exhaust gas or the surplus cold air after heat exchange in the underground intelligent computing center enters the mine ventilation system.

[0058] The collaborative control unit prioritizes the cooling supply to the underground intelligent computing center, allocating the low-temperature exhaust gas flow rate to the cooling branch of the underground intelligent computing center according to the cooling priority principle.

[0059] in, Let t be the low-temperature exhaust gas flow rate of the cold branch.

[0060] Once the cooling needs of the underground intelligent computing center are met, the remaining cooling capacity is:

[0061] in, Let t be the remaining cooling capacity at time t.

[0062] The cooling capacity allocated to the mine ventilation system is:

[0063] in, The amount of cooling capacity allocated to the mine ventilation system at time t; Let t be the cooling capacity required by the mine's ventilation system at time t.

[0064] The flow rate of low-temperature exhaust gas or residual cold air entering the mine ventilation system is:

[0065] in, The flow rate of low-temperature exhaust gas or residual cold air entering the mine ventilation system at time t.

[0066] The total ventilation volume of the mine ventilation system is:

[0067] in, Let t be the total ventilation volume of the mine's ventilation system. The flow rate of residual cold air after heat exchange at the intelligent computing center at time t; Let t be the air supply volume of the conventional mine ventilation system; Let t be the auxiliary air supply flow rate of the gas storage tank with surplus compressed air.

[0068] The required air volume for the mine ventilation system is:

[0069] in, express The required air volume for a mine ventilation system can be determined based on safety ventilation requirements such as the number of people in the mining face, equipment heat dissipation, underground temperature, methane concentration, oxygen concentration, and concentration of harmful gases.

[0070] The auxiliary air supply flow rate of the gas storage facility with surplus compressed air is:

[0071] in, This represents the surplus compressed air auxiliary air supply flow rate of the gas storage tank at time t; To maximize the air supply flow of the auxiliary air supply branch; The minimum gas storage level required to allow auxiliary air supply.

[0072] Determine whether to activate the auxiliary air supply branch to assist the mine ventilation system based on the following constraints:

[0073]

[0074]

[0075]

[0076] in, Let t be the temperature of the gas entering the mine ventilation system at time t; The lower limit of the allowable temperature for gases entering the ore; The upper limit of the allowable temperature of the gas entering the ore; Let be the oxygen concentration at time t; The lower limit of permissible oxygen concentration; Let be the gas concentration at time t; The upper limit of permissible gas concentration; Let t be the concentration of harmful gas. The upper limit for the concentration of harmful gases allowed.

[0077] If any safety constraint is not met, the coordinated control unit shuts down the auxiliary air supply branch and switches to safety bypass mode or conventional mine ventilation mode. At this time:

[0078] in, express The low-temperature exhaust gas flow rate is directly allocated to the mine ventilation system at all times.

[0079] The aforementioned control algorithm enables coordinated management and control among green electricity, energy storage, intelligent computing cooling, and mine ventilation: green electricity is prioritized for supplying the underground intelligent computing center, with surplus green electricity used for compressed air energy storage; when green electricity is insufficient, the gas storage facility prioritizes releasing energy to supplement the power consumption of the underground intelligent computing center; the low-temperature exhaust gas generated by energy release is prioritized for cooling the underground intelligent computing center; after the cooling demand of the underground intelligent computing center is met, surplus cooling capacity and residual cold air enter the mine ventilation system; when there is still a shortfall in air volume in the mine ventilation system, surplus compressed air from the gas storage facility is connected to the mine ventilation system as an auxiliary air supply source; when the mine safety parameters do not meet the preset safety conditions, the coordinated control unit closes the auxiliary air supply branch, and the system switches to safety bypass mode or conventional mine ventilation mode.

[0080] All new states generated by the executed actions are fed back to the input through a closed-loop state feedback system, enabling the system to maintain efficient, economical and safe collaborative operation under complex conditions.

[0081] Taking the high-temperature period in summer as an example, the photovoltaic power generation is sufficient and prioritizes powering the intelligent computing center. The surplus electricity drives the compressor unit to compress air and store it in the underground gas storage tank. At night, the photovoltaic output drops to zero, and the system switches to energy storage power supply mode. The underground gas storage tank releases high-pressure air to drive the expander unit to generate electricity, providing a continuous power supply to the intelligent computing center. The low-temperature exhaust gas discharged by the expander unit is dehumidified, filtered, and temperature-regulated before entering the intelligent computing center to cool the servers, controlling the intake air temperature of the intelligent computing center within a suitable range. The residual cold air after heat exchange is still lower than the underground ambient temperature and is sent to the mine ventilation system to provide cool air to the mining face and reduce the temperature of the underground working face.

[0082] When an increase in methane concentration is detected in the mine, the collaborative control system automatically increases the supply of residual cooling air, utilizing the high density of low-temperature air to enhance the dilution and displacement effect of underground gas. If the methane concentration exceeds the safety threshold, the system immediately closes the mine access valve, and the residual cooling air is discharged through the bypass valve, restoring the mine to its normal ventilation mode. When the cooling demand of the intelligent computing center decreases while the mine's ventilation and cooling demand is high, the system controls a portion of the low-temperature exhaust gas to bypass the intelligent computing center and directly enter the mine's ventilation and cooling branch.

[0083] This invention also proposes a collaborative management and control system for the reuse of green energy resources in abandoned mines, used to implement the above-mentioned method, including: The system comprises a green energy unit, a smart computing center, an energy storage unit, a gas processing unit, and a collaborative control unit. The energy storage unit includes an electric motor, a compressor unit, a gas storage tank, an expander unit, and a generator.

[0084] This invention utilizes abandoned mine goaf areas, mine slopes, spoil heaps, closed tailings ponds, or idle land in mining areas for green electricity generation, and uses abandoned mine tunnels, abandoned roadways, underground goaf areas, or reinforced and renovated underground chambers for compressed air energy storage and underground intelligent computing center layout, thereby realizing the composite utilization of above-ground and underground space resources in abandoned mines.

[0085] This invention improves the local consumption capacity of green electricity in mining areas by prioritizing the supply of green electricity to underground intelligent computing centers and using surplus electricity to drive compressed air energy storage. When green electricity is insufficient, compressed air energy storage is used to release energy and generate electricity to provide stable power support for underground intelligent computing centers.

[0086] This invention utilizes the low-temperature exhaust gas from compressed air energy storage and power generation first for cooling in an underground intelligent computing center, and then connects the heat-exchanged residual cold air to the mine ventilation system, achieving two-stage utilization of the low-temperature exhaust gas's cooling capacity and air volume, thereby improving the overall utilization efficiency of the compressed air energy storage system.

[0087] This invention sets up an auxiliary compressed air supply branch in the gas storage tank, so that the surplus compressed air in the underground lining gas storage tank can be depressurized, stabilized, filtered, conditioned, and diffused with noise reduction when safety conditions are met, and then connected to the mine ventilation system as an auxiliary or emergency air source for the mine, thereby improving the regulation capacity of the mine ventilation system.

[0088] This invention uses the detection of air volume, temperature and humidity, oxygen concentration, methane concentration and harmful gas concentration at the mine access end to implement safety interlock control for the process of excess cold air and surplus compressed air from the gas storage tank entering the mine. When any parameter fails to meet the preset safety conditions, the system closes the mine access valve and switches to safety bypass mode or conventional mine ventilation mode, thereby improving the system's operational safety.

[0089] This invention uses a collaborative control unit to dynamically regulate green electricity output, energy storage status, computing load, cooling demand, and mine ventilation safety in real time, forming a closed loop of perception-decision-execution-feedback, and achieving collaborative optimization of power flow, low-temperature exhaust flow, residual cold air flow, and surplus compressed air flow.

[0090] This invention also proposes a collaborative management and control system for the reuse of green energy resources in abandoned mines, used to implement the above-mentioned method, including: The system comprises a green energy unit, a smart computing center, an energy storage unit, a gas processing unit, and a collaborative control unit. The energy storage unit includes an electric motor, a compressor unit, a gas storage tank, an expander unit, and a generator. The smart computing center and the gas storage tank are located underground in the abandoned mine.

[0091] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A collaborative management and control method for the reuse of green energy resources in abandoned mines, comprising: Green electricity unit, intelligent computing center, energy storage unit, gas processing unit, and collaborative control unit; The green electricity generated by the green electricity unit first passes through the collaborative control unit to supply power to the intelligent computing center in real time. The collaborative control unit compares the amount of green electricity generated with the real-time power consumption of the intelligent computing center. When the generated green electricity exceeds the real-time power consumption of the intelligent computing center, the collaborative control unit controls the energy storage unit to store the excess green electricity. When the generated green electricity is less than the real-time power consumption of the intelligent computing center, the collaborative control unit controls the energy storage unit to supply power to the intelligent computing center. At the same time, the exhaust gas generated by the energy storage unit is processed by the gas treatment unit and then enters the intelligent computing center for cooling. A temperature threshold is set. When the temperature of the intelligent computing center is lower than the threshold, the power cooling of the intelligent computing center is turned off, and vice versa. The residual cold air after heat exchange enters the mine ventilation system through the gas treatment unit distribution pipe. An energy storage unit is also installed as an auxiliary air supply branch to assist the mine's ventilation system.

2. The method for collaborative management and control of green energy resource reuse in abandoned mines according to claim 1, characterized in that, The energy storage unit includes an electric motor, a compressor unit, a gas storage tank, an expander unit, and a generator; When the generated green electricity is less than the real-time power consumption of the intelligent computing center, the collaborative control unit controls the motor to start, and the green electricity generated by the green electricity unit enables the compressor unit to work, generating compressed air which is stored in the gas storage tank. When the generated green electricity is less than the real-time power consumption of the intelligent computing center, the collaborative control unit controls the expander to use the compressed air from the gas storage tank to generate mechanical work to power the generator and supply power to the intelligent computing center.

3. The collaborative management and control method for green energy resource reuse in abandoned mines according to claim 2, characterized in that, The intelligent computing center and gas storage facility are located underground.

4. The collaborative management and control method for green energy resource reuse in abandoned mines according to claim 1, characterized in that, The collaborative control unit predicts the power demand of the underground intelligent computing center based on the current measured power consumption and task scheduling information within the future control cycle. The predicted power consumption of the intelligent computing center is: in, express Predicted power consumption at any given time; For power supply safety margin; This is the basic power consumption of the intelligent computing center; for The expected number of computing power devices of type r to be operational at time r; R represents the number of computing power device types. The unloaded power of the r-th type of computing power device; This represents the full-load power of the r-th type of computing device; For the r-th type of computing power device Real-time estimated load rate; The collaborative control unit obtains the predicted power consumption. Compared with the current measured power consumption The larger value in the range is used as the dispatched electricity demand: in, Indicates prediction Real-time scheduling of electricity demand; t represents the current time; This represents a prediction time step.

5. A collaborative management and control method for green energy resource reuse in abandoned mines according to claim 2, characterized in that, When the real-time output of green electricity exceeds the power demand of the underground intelligent computing center, the surplus green electricity power is: in, This represents the surplus green electricity power at time t; express Real-time output of the green energy unit; This indicates the electricity demand at time t. This represents the power consumption of the auxiliary system at time t; The collaborative control unit controls the operation of the compressor unit based on surplus green electricity. The operating power of the compressor unit is: in, This represents the operating power of the compressor unit at time t; This indicates the maximum operating power of the compressor unit; This indicates the upper limit of the permissible gas storage conditions at the gas storage facility; This indicates the gas storage status of the gas storage facility at time t; Indicates the energy storage efficiency of compression; Indicates the control cycle; The gas storage status of the gas storage facility in the next control cycle is as follows: in, This indicates the gas storage status of the gas storage facility at time t+1; This represents the power output of the energy storage unit at time t; Indicates the energy release efficiency for power generation; This represents the conversion factor between the auxiliary air supply flow rate and the change in gas storage status. express The auxiliary compressed air supply flow rate of the gas storage tank at all times; When green electricity output is insufficient, the power shortage for the intelligent computing center is: in, This indicates the power shortage at the intelligent computing center at time t; This indicates the electricity demand at time t. The collaborative control unit prioritizes controlling the energy storage unit to release energy and generate electricity to supplement the power supply of the underground intelligent computing center; The energy storage unit releases the following power: in, This represents the power output of the energy storage unit at time t; This indicates the power shortage at the intelligent computing center at time t; This represents the maximum energy release and power generation capacity of the energy storage unit. To improve the efficiency of energy release and power generation; This indicates the gas storage status of the gas storage facility at time t; This represents the lower limit of the permissible gas storage conditions for the gas storage facility; Indicates the control cycle.

6. A collaborative management and control method for green energy resource reuse in abandoned mines according to claim 2, characterized in that, During the energy storage unit's energy release and power generation process, the low-temperature exhaust gas at the expander outlet provides the following cooling capacity: in, This indicates that the low-temperature exhaust gas provides cooling at time t; air density; The specific heat capacity of air at constant pressure; Let be the flow rate of the low-temperature exhaust gas at the outlet of the expander unit at time t; For reference temperature; Let t be the temperature of the low-temperature exhaust gas. The cooling demand of the intelligent computing center is determined based on its dispatch power demand: in, Indicates prediction Cooling requirements of the real-time intelligent computing center; This is the conversion factor between the electrical load and cooling load of the underground intelligent computing center. express Real-time scheduling of electricity demand; The distribution of cooling capacity in the low-temperature exhaust gas meets the following requirements: in, express Cooling energy is constantly allocated to the intelligent computing center; This indicates that the low-temperature exhaust gas provides cooling at time t; Indicates prediction Cooling requirements of the real-time intelligent computing center; for The cooling capacity is constantly allocated to the mine ventilation system.

7. A collaborative management and control method for green energy resource reuse in abandoned mines according to claim 2, characterized in that, Determine whether to activate the auxiliary air supply branch to assist the mine ventilation system based on the following constraints: in, Let t be the temperature of the gas entering the mine ventilation system at time t; The lower limit of the temperature of the gas entering the ore. The upper limit of the allowable temperature of the gas entering the ore; Let be the oxygen concentration at time t; The lower limit of permissible oxygen concentration; Let be the gas concentration at time t; The upper limit of permissible gas concentration; Let t be the concentration of harmful gas. The upper limit of permissible concentration of harmful gases; If any safety constraint is not met, the coordinated control unit shuts down the auxiliary air supply branch.

8. A collaborative management and control system for the reuse of green energy resources in abandoned mines, used to implement the method described in any one of claims 1-7, characterized in that, include: The system comprises a green energy unit, a smart computing center, an energy storage unit, a gas processing unit, and a collaborative control unit. The energy storage unit includes an electric motor, a compressor unit, a gas storage tank, an expander unit, and a generator. The smart computing center and the gas storage tank are located underground in the abandoned mine.

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