Rail-mounted liquid gravity energy storage transportation control method and system

Abstract

The invention provides a rail-mounted liquid gravity energy storage transportation control method and system, and relates to the technical field of energy storage transportation, the method comprises the following steps: when it rains, water reservoirs store water by using natural rainfall, and initial water level, maximum capacity and minimum capacity parameters of each water reservoir and related parameters of water circulation are set; comprising cycle index, convergence condition, simulated evaporation rate and precipitation rate; and receiving the water level data of the liquid level sensor in real time, and calculating the simulated water level drop amount according to the preset evaporation rate and the current water level to simulate the water level natural drop, the rainfall increase water level and the runoff process so as to manage the water level of the reservoir and obtain a simulation result. Cyclic utilization and energy conversion of water resources and solid energy storage blocks are achieved, the water outlet of the water tank is mechanically controlled, the automation degree and the operation efficiency are improved, the interference risk is reduced, and the energy utilization efficiency and the system stability are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage and transportation, and in particular to a rail-type liquid gravity energy storage and transportation control method and system. Background Art

[0002] Traditional systems rely on the transportation of solid energy storage blocks to achieve gravity energy storage. This process consumes a lot of electricity to drive the train and equipment, especially when transporting the solid energy storage blocks from the low-level energy storage stack to the high-level energy storage stack. The energy consumption is particularly significant. The transportation and storage equipment of solid energy storage blocks require regular maintenance and inspection, including trains, fixtures, tracks and other levels, which increases the overall operating cost of the system. The gravity energy storage capacity of solid energy storage blocks is limited by their mass and the height difference that can be transported. This means that in order to achieve higher energy storage efficiency, a larger mass and a higher height difference are required, which is often subject to many limitations in practical applications.

[0003] Traditional systems are mostly open-air. In harsh weather conditions, such as the rainy season, solid energy storage blocks and equipment can be corroded and damaged by rainwater, impacting system stability and reliability. During the rainy season, abundant rainwater, a natural, cost-free gravity energy storage medium, is not fully utilized in traditional systems, resulting in a waste of natural resources. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a rail-type liquid gravity energy storage transportation control method and system, which realizes efficient and precise control of gravity energy storage.

[0005] In order to solve the above technical problems, the technical solutions of the present invention are as follows:

[0006] In a first aspect, a method for controlling rail-type liquid gravity energy storage transportation is provided, the method comprising:

[0007] When it rains, the reservoir uses natural precipitation to store water, and sets the initial water level, maximum capacity, minimum capacity parameters of each reservoir, as well as relevant parameters of the water cycle, including the number of cycles, convergence conditions, simulated evaporation rate, and precipitation rate;

[0008] Receive water level data from the liquid level sensor in real time, calculate the simulated water level drop based on the preset evaporation rate and current water level, and simulate the natural drop in water level, the increase in water level due to rainfall, and the runoff process to manage the water level in the reservoir and obtain simulation results;

[0009] Based on the simulation results, the control module adjusts the opening degree of the water inlet valve and the water discharge valve, and decides whether to start the drainage system or the water pump to transfer water resources;

[0010] During the electricity off-peak period, when the flatbed train and the water tank train are preparing to run from a low-altitude starting point to a high-altitude destination, the control module instructs the water tank train to gradually drain the water in the water tank. The drained water is then directed back to the reservoir through the drainage system. The control module instructs the overhead crane set up around the flatbed train to start, using the translation and lifting function and the gripping device to move the energy storage blocks on the flatbed train to the energy storage stack to complete the distribution of the energy storage blocks.

[0011] During peak electricity consumption periods, the control module, based on signals from the liquid level sensor, instructs the pumping system to pump water from the reservoir into the empty water tanks of the water tank train through the main and branch pipes. Simultaneously, the control module instructs the overhead cranes surrounding the flatbed train to activate, using their translational lifting and gripping functions to grab energy storage blocks from the energy storage stack and place them on the flatbed train.

[0012] A train fully loaded with water and energy storage blocks begins its journey from a higher altitude destination to a lower altitude starting point. During this journey, the train's motion, the gravity of the water, and the gravitational potential energy of the energy storage blocks are converted into electricity. The power generation device receives the electricity and stores or transmits it to the power grid for users.

[0013] After completing an up and down cycle, the train returns to the starting point.

[0014] Furthermore, the calculation process of the simulated water level drop includes:

[0015] Based on the current water level data and the preset daily evaporation rate parameters, the water level drop caused by natural evaporation within a specified time interval is calculated; the rainwater increment calculated by the real-time rainfall parameters and the rainfall infiltration rate parameters is superimposed; the runoff loss determined by the runoff coefficient parameters and the current water level, as well as the seepage loss determined by the seepage rate parameters and the current water level, are deducted to obtain the simulated water level change.

[0016] Furthermore, during a low-power period, when a flatbed train and a water-tank train are preparing to travel from a low-altitude starting point to a high-altitude destination, the control module instructs the water-tank train to gradually drain the water from its tank. The drained water is then directed back to the reservoir through the drainage system. Furthermore, the control module instructs the overhead crane installed around the flatbed train to start, utilizing its translational lifting function and gripping device to move the energy storage blocks on the flatbed train to the energy storage stack, thereby completing the distribution of the energy storage blocks. This includes:

[0017] The control module issues a start command to the flatbed train and the water tank train, which includes a command to start from a starting point with a lower altitude in sequence;

[0018] After the train starts, it travels towards the destination with a higher altitude. During the journey, the control module instructs the water tank train to gradually drain the water in the water tank according to the preset instructions, and guides the drained water back to the water reservoir through the drainage system;

[0019] When the train approaches or arrives at the designated location, the control module sends a positioning instruction to the flatbed train;

[0020] The flatbed train is positioned according to instructions and aligned with the energy storage stack;

[0021] After the flatbed train is positioned, the control module sends a start command to the overhead cranes set up around the flatbed train;

[0022] The overhead crane uses the translation and lifting functions to adjust to the position corresponding to the energy storage block on the flatbed train. Under the control of the control module, the gripping device of the overhead crane grabs the energy storage block and uses the lifting function to move the energy storage block from the designated position in the flatbed stack.

[0023] The picking and placing process is repeated until all energy storage blocks are delivered to the energy storage stack to complete the delivery of energy storage blocks.

[0024] Furthermore, during peak power consumption periods, the control module instructs the pumping system to pump water from the reservoir into the empty water tank of the water tank train through the main pumping pipe and branch pipes based on the signal from the liquid level sensor. At the same time, the control module instructs the overhead crane around the flatbed train to start, using the translation and lifting function and the gripping device to grab the energy storage blocks from the energy storage stack and place them on the flatbed train, including:

[0025] The control module receives the signal from the liquid level sensor and analyzes the signal to determine whether the current water level meets the pumping conditions and whether the empty water tank of the water tank train needs to be replenished with water. At the same time, the control module monitors the status of the flatbed train to determine whether the energy storage block is loaded and obtains the analysis results;

[0026] Based on the analysis results, the control module issues operating instructions to the pumping system and overhead crane respectively;

[0027] The pumping system receives instructions from the control module, starts the main pumping pipe and branch pipes, and pumps the water in the reservoir into the empty water tank of the water tank train; the overhead crane receives instructions from the control module, starts the translation and lifting function and the gripping device, moves the overhead crane to the top of the energy storage stack, and uses the gripping device to grab the energy storage block and place it on the flatbed box train.

[0028] Furthermore, the water tank of the water tank train includes:

[0029] The box body is independently installed and removed from each carriage;

[0030] The water inlet is provided at the top of the box body and cooperates with the pumping system. During the peak period of electricity consumption, the pumping system draws water from the water reservoir through the main pumping pipe and branch pipes, and injects the water into the box body through the water inlet;

[0031] The water outlet is arranged at the lower side of the box body. During the low power period, the water in the box body is discharged and returned to the water reservoir through the drainage system, realizing automatic water storage and drainage.

[0032] Furthermore, a train fully loaded with water and energy storage blocks begins its journey from a higher altitude destination to a lower altitude starting point. During this process, the train's movement, the gravity of the water, and the gravitational potential energy of the energy storage blocks are converted into electricity. The power generation device receives the electricity and stores or transmits it to the power grid for users to use, including:

[0033] The train is fully loaded with water and energy storage blocks. Under the action of gravity, it begins to accelerate down the downhill section. As the train's altitude gradually decreases, the gravitational potential energy and the kinetic energy generated by the descent accumulate.

[0034] The energy conversion device is activated during the train's descent and begins to convert the gravitational potential energy and kinetic energy of the train, water, and energy storage blocks into electricity. The converted electricity is received in real time and stored in the train's energy storage system.

[0035] When the train arrives at the departure point or the designated grid access point, the electricity in the energy storage system is transmitted to the grid through the transmission line;

[0036] The power grid receives electricity and distributes it to various power consumption areas for users to use.

[0037] Furthermore, the calculation process of power conversion includes:

[0038] The total energy is obtained by obtaining the train body potential energy, water body potential energy and energy storage block potential energy generated by the conversion of gravitational potential energy during the train's descent, as well as the kinetic energy generated by the movement speed;

[0039] Based on the real-time energy conversion efficiency parameter, the total energy is converted into theoretical power generation;

[0040] Deduct the friction loss energy calculated from the train's running friction coefficient, mass and travel distance, as well as the air resistance loss energy calculated from the air resistance coefficient, frontal area, air density and speed parameters;

[0041] The final effective power generation is dynamically corrected in combination with the input power parameters to obtain the actual value of electric energy that can be stored or connected to the grid.

[0042] The above solution of the present invention includes at least the following beneficial effects:

[0043] By receiving water level data from the liquid level sensor in real time and performing simulation calculations based on preset parameters such as evaporation rate and precipitation rate, this method can accurately manage the water level of the reservoir and avoid wasting water resources. During the rainy season, the reservoir can make full use of natural precipitation to store water, while during the dry season, the distribution and use of water resources can be optimized by precisely controlling the opening degree of the water inlet valve and the water discharge valve, as well as whether to start the drainage system or water pump. The train operation strategy and the distribution of energy storage blocks can be flexibly adjusted according to the power demand of the power grid. During periods of low electricity consumption, water resources are transferred through the drainage system and water pumps, and the energy storage blocks are moved to the energy storage stack using an overhead crane to prepare for peak electricity consumption periods. This strategy not only optimizes the use of water resources, but also improves the flexibility and response speed of energy management.

[0044] As the train travels up and down, the gravity of the water and the gravitational potential energy of the energy storage blocks are converted into electricity. This multi-source energy conversion method improves energy conversion efficiency. Furthermore, by precisely controlling the train's speed and the distribution of the energy storage blocks, the energy conversion process can be further optimized, improving the overall efficiency of the system.

[0045] Utilizing natural precipitation and gravitational potential energy for energy storage and transportation reduces dependence on traditional energy sources and lowers operating costs. Furthermore, precise control and management reduce water waste and energy loss, further improving the system's economic efficiency. Combining water and energy management, this system optimizes water utilization and energy conversion, contributing to sustainable development. It not only meets current needs but also contributes to future development and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 It is a flow chart of a rail-type liquid gravity energy storage and transportation control method provided by an embodiment of the present invention.

[0047] Figure 2 It is a schematic diagram of a rail-type liquid gravity energy storage and transportation control system provided by an embodiment of the present invention.

[0048] Figure 3 This is a front view of a water tank of a water tank train of a rail-type liquid gravity energy storage transportation control system provided by an embodiment of the present invention.

[0049] Figure 4 This is a structural diagram of the bottom of a water tank of a water tank train of a rail-type liquid gravity energy storage transportation control system provided by an embodiment of the present invention.

[0050] Explanation of the accompanying symbols: 1. Box body; 2. Water inlet; 3. Water outlet. DETAILED DESCRIPTION

[0051] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0052] like Figure 1 As shown, an embodiment of the present invention provides a rail-type liquid gravity energy storage transportation control method, the method comprising the following steps:

[0053] Step 11: When it rains, the reservoir uses natural precipitation to store water, and sets the initial water level, maximum capacity, minimum capacity parameters of each reservoir, as well as relevant parameters of the water cycle, including the number of cycles, convergence conditions, simulated evaporation rate, and precipitation rate;

[0054] Step 12: Receive water level data from the liquid level sensor in real time, calculate the simulated water level drop according to the preset evaporation rate and the current water level, so as to simulate the natural drop of the water level, the increase of the water level due to rainfall, and the runoff process, so as to manage the water level of the reservoir and obtain the simulation result;

[0055] Step 13: Based on the simulation results, the control module adjusts the opening degree of the water inlet valve and the water discharge valve, and decides whether to start the drainage system or the water pump to transfer water resources;

[0056] Step 14: When the flatbed train and the water tank train are preparing to run from a low-altitude starting point to a high-altitude destination during a low-voltage period, the control module instructs the water tank train to gradually drain the water in the water tank. The drained water is then directed back to the reservoir through the drainage system. The control module instructs the overhead crane installed around the flatbed train to start, using its translation and lifting function and gripping device to move the energy storage blocks on the flatbed train to the energy storage stack to complete the distribution of the energy storage blocks.

[0057] Step 15: During peak electricity consumption, the control module instructs the pumping system to pump water from the reservoir into the empty water tank of the water tank train through the main pumping pipe and branch pipes based on the signal from the liquid level sensor. At the same time, the control module instructs the overhead crane around the flatbed train to start, using its translation and lifting function and gripping device to grab energy storage blocks from the energy storage stack and place them on the flatbed train.

[0058] Step 16: The train, fully loaded with water and energy storage blocks, begins its journey from the higher altitude destination to the lower altitude starting point. During this journey, the train's motion, the gravity of the water, and the gravitational potential energy of the energy storage blocks are converted into electricity. The power generation device receives the electricity and stores or transmits it to the power grid for user use.

[0059] Step 17: After the train completes an up-and-down cycle, it returns to the starting point.

[0060] In an embodiment of the present invention, by setting parameters such as the initial water level, maximum capacity, and minimum capacity of the reservoir and receiving real-time water level data from the liquid level sensor, the system can accurately manage the water level of the reservoir and fully utilize natural precipitation for water storage. This helps reduce water waste and improve water resource utilization, especially during the transition between rainy and dry seasons, ensuring a continuous supply of water resources. Based on preset parameters such as evaporation rate and precipitation rate, the system simulates the natural drop in water level, the increase in water level due to rainfall, and the runoff process to obtain simulation results. This helps accurately predict water level changes in the reservoir, thereby timely adjusting the opening degree of the water inlet valve and the water discharge valve, and deciding whether to activate the drainage system or water pump to transfer water resources. This intelligent water level management method can ensure that the water level in the reservoir is always maintained at an optimal state, avoiding excessive waste or shortage of water resources.

[0061] During periods of low electricity demand, the system instructs water tank trains to gradually drain their water tanks and uses overhead cranes to move energy storage blocks from flatbed trains to the energy storage stacks to complete the distribution of the blocks. This strategy helps optimize energy management by utilizing excess electricity for water pumping and transfer during periods of low electricity demand. Furthermore, during peak electricity demand periods, the system can promptly respond to demand by replenishing the water tank trains through the pumping system and extracting energy storage blocks from the energy storage stacks and placing them on flatbed trains, ensuring a stable power supply. During the train's voyages, the gravity of the water, the gravitational potential energy of the energy storage blocks, and the train's motion all contribute to the conversion of electricity. This multi-source energy conversion approach fully utilizes both gravitational potential energy and kinetic energy, improving energy conversion efficiency. Furthermore, precise control of the train's speed and the distribution of the energy storage blocks further optimizes the energy conversion process, ensuring efficient system operation.

[0062] In a preferred embodiment of the present invention, in step 11, when it rains, the reservoir utilizes natural precipitation to store water, and sets the initial water level, maximum capacity, minimum capacity parameters of each reservoir, and related parameters of the water cycle, including the number of cycles, convergence conditions, simulated evaporation rate, and precipitation rate; in step 12, water level data from the liquid level sensor is received in real time, and the simulated water level drop is calculated based on the preset evaporation rate and the current water level to simulate the natural drop in water level, the increase in water level due to rainfall, and the runoff process, so as to manage the water level of the reservoir and obtain a simulation result; in step 13, based on the simulation result, the control module adjusts the opening degree of the water inlet valve and the water discharge valve to determine whether to start the drainage system or the water pump to transfer water resources, which may include:

[0063] In this embodiment of the present invention, a series of basic parameters are set based on the actual conditions of the reservoirs. These include the initial water level, maximum capacity (i.e., the upper limit of the water the reservoir can store), minimum capacity (i.e., the lowest water level the reservoir should maintain), and parameters closely related to the water cycle, such as the number of cycles (the number of times the system simulates water level changes), convergence criteria (the standard for achieving stability in the simulation results), simulated evaporation rate (a preset evaporation rate based on historical data or experience), and precipitation rate (a preset precipitation rate based on weather forecasts or historical precipitation data). The system receives real-time water level data from liquid level sensors, which are precisely installed in the reservoirs and continuously and accurately measure and record the current water level. After receiving real-time water level data, the system combines the preset evaporation rate with the current water level to perform a series of complex calculations to simulate the natural decline of the water level over a period of time. Furthermore, the system simulates the impact of rainfall on the water level increase based on weather forecasts or real-time precipitation data, and considers the impact of runoff (i.e., water outflow from the reservoir) on the water level. The purpose of this series of simulations is to obtain a water level prediction result that is as close to the actual situation as possible.

[0064] Based on the simulation results, current and future water level trends are analyzed and decisions are made. If the water level is predicted to fall below minimum capacity, the system will command the inlet valve to open or activate a pump to draw water from another source to replenish the reservoir. Conversely, if the water level is predicted to exceed maximum capacity, the system will command the outlet valve to open or activate the drainage system to remove excess water to prevent overflow and waste or damage. Based on the system's decisions, the control module will precisely adjust the opening level of the inlet and outlet valves, and decide whether to activate the drainage system, pumps, and other equipment. At the same time, the system continuously monitors water level changes and dynamically adjusts the control strategy based on actual conditions to ensure that the water level in the reservoir remains within the ideal range.

[0065] Suppose a reservoir has an initial water level of 50%, a maximum capacity of 80%, and a minimum capacity of 20%. The system assumes an evaporation rate of 0.5% per day and a precipitation rate of 2% per day based on the weather forecast. During real-time monitoring, the level sensor indicates the current water level is 60%. Based on the current water level (60%) and the evaporation rate (0.5%), the system first calculates that, absent other factors, the water level will naturally drop by 0.5% per day. Then, the system considers the precipitation rate (2%) and simulates a 2% daily rise in the event of rain. Combining these two factors, the system predicts water level trends over the coming period. If the system predicts continued rainfall over the next few days and the water level is likely to exceed 80% of the maximum capacity, it will preemptively command the release valve to open or activate the drainage system to ensure the water level does not exceed the specified level. Conversely, if dry weather is predicted and the water level is likely to drop below 20%, the system will fully open the inlet valve or activate the pump to replenish the reservoir.

[0066] In a preferred embodiment of the present invention, the calculation process of the simulated water level drop includes:

[0067] Based on the current water level data and the preset daily evaporation rate parameters, the water level drop caused by natural evaporation within a specified time interval is calculated; the rainwater increment calculated by the real-time rainfall parameters and the rainfall infiltration rate parameters is superimposed; the runoff loss determined by the runoff coefficient parameters and the current water level, as well as the seepage loss determined by the seepage rate parameters and the current water level, are deducted to obtain the simulated water level change.

[0068] When applied in practice, the calculation of the simulated water level drop can be achieved by the following calculation formula, for example:

[0069] ΔH=H-(H×S×T / 100)+(R×I)-(C×H×T)-(L×H×T);

[0070] Where ΔH represents the simulated water level drop; H represents the current water level; S represents the daily evaporation rate; T represents the time interval; R represents the rainfall; I represents the rainfall infiltration rate; C represents the runoff coefficient; and L represents the leakage rate.

[0071] In this embodiment of the present invention, the current water level H is obtained in real time from a liquid level sensor. The daily evaporation rate S, rainfall infiltration rate I, runoff coefficient C, and leakage rate L are set based on historical data or experience. A time interval T is determined, which is a fixed period of time, such as one day or one hour. Rainfall R is obtained or predicted in real time, which can be obtained from a weather forecast or real-time meteorological data. The water level drop due to evaporation is calculated as: H × S × T / 100. The water level increase due to rainfall is calculated as: R × I. The water level drop due to runoff is calculated as: C × H × T. The water level drop due to leakage is calculated as: L × H × T. Each of the above factors is substituted into the formula for calculation. The result, ΔH, is the simulated water level drop, which represents the change in water level after accounting for all factors within a given time interval T. Based on the calculated ΔH, the trend of water level change is determined. If the water level drops excessively, approaching or falling below the minimum capacity, consider opening the inlet valve or starting the water pump to replenish water. If the water level rises excessively, approaching or exceeding the maximum capacity, consider opening the drain valve or starting the drainage system to drain water.

[0072] Assume the current water level H = 60% (based on a reservoir's maximum capacity of 100%), the daily evaporation rate S = 0.5%, the time interval T = 1 day, the rainfall R = 10 mm, the rainfall infiltration rate I = 0.5 (indicating that 50% of rainfall infiltrates the reservoir), the runoff coefficient C = 0.01 (indicating that 1% of the water level drops daily due to runoff), and the leakage rate L = 0.005 (indicating that 0.5% of the water level drops daily due to leakage). First, calculate the water level drop due to evaporation: 60% × 0.5% × 1 = 0.3%. Next, calculate the water level increase due to rainfall: Since the rainfall infiltration rate is 50%, the actual water level increase is 10 mm × 0.5 = 5 mm (this needs to be converted to a percentage here; assuming the water level at the reservoir's maximum capacity corresponds to 1000 mm, then 5 mm = 0.5%). Next, calculate the water level drop due to runoff: 60% × 0.01 × 1 = 0.06%. Then calculate the water level drop due to leakage: 60% × 0.005 × 1 = 0.03%. Finally, substitute these values ​​into the formula to calculate the simulated water level drop:

[0073] ΔH=60%-(60%×0.5%×1)+0.5%-(60%×0.01×1)-(60%×0.005×1)=60.11%.

[0074] By comprehensively accounting for multiple factors such as evaporation, rainfall, runoff, and seepage, the system can more accurately simulate reservoir water level changes. This helps managers more precisely understand water resource dynamics and make more informed decisions, such as recharging, draining, or diverting water resources. By calculating simulated water level drops in real time, the system can predict in advance whether the water level will fall below minimum capacity or exceed maximum capacity. This helps managers take timely measures to prevent water supply shortages caused by low water levels or overflows and waste caused by high water levels. Taking into account rainfall infiltration rates allows for more efficient utilization of rainwater resources during rainfall. By adjusting the opening levels of inlet and outlet valves or activating related equipment, rainwater collection and utilization can be maximized, improving water resource utilization efficiency. This formula can serve as the core algorithm in reservoir management systems. By integrating real-time data monitoring, simulation calculations, decision analysis, and automatic control, the system achieves automation and intelligence. This helps reduce manual intervention, improve management efficiency, and mitigate the risks associated with human error. Through precise management, waste prevention, and improved utilization efficiency, the formula contributes to sustainable water resource management. The results of simulated water level drawdown can provide important decision-making support for managers. They can be used to formulate more scientific and reasonable response strategies when faced with different climate conditions, water demands, and emergency situations.

[0075] In a preferred embodiment of the present invention, in step 14, when the flatbed train and the water tank train are preparing to run from a low-altitude starting point to a high-altitude destination during a low-voltage period, the control module instructs the water tank train to gradually drain the water in the water tank, and the drained water is directed back to the reservoir through the drainage system. The control module instructs the overhead crane disposed around the flatbed train to start, utilizing the translation and lifting function and the gripping device to move the energy storage blocks on the flatbed train to the energy storage stack to complete the distribution of the energy storage blocks. This may include:

[0076] Step 141: The control module sends a start instruction to the flatbed train and the water tank train, including a command to start from a starting point with a lower altitude in sequence;

[0077] Step 142: After the train starts, it travels towards the destination at a higher altitude. During the travel, the control module instructs the water tank train to gradually drain the water in the water tank according to preset instructions, and guides the drained water back to the water reservoir through the drainage system;

[0078] Step 143, when the train approaches or arrives at the designated location, the control module sends a positioning instruction to the flatbed train;

[0079] Step 144 , the flatbed train is positioned according to the instructions and aligned with the energy storage stack;

[0080] Step 145: After the flatbed train is positioned, the control module sends a start command to the overhead cranes located around the flatbed train.

[0081] Step 146: The overhead crane uses its translation and lifting functions to adjust to a position corresponding to the energy storage block on the flatbed train. Under the control of the control module, the gripping device of the overhead crane grabs the energy storage block and uses its lifting function to move the energy storage block from the designated position in the flatbed train.

[0082] Step 147 , repeating the grabbing and placing process until all energy storage blocks are delivered to the energy storage stack, thereby completing the delivery of the energy storage blocks.

[0083] In this embodiment of the present invention, the control module first performs system initialization, confirming the normal operation of all equipment, including the flatbed train, water tank train, overhead crane, and drainage system. The control module then issues a start command to the flatbed train and water tank train. This command includes instructions to depart sequentially from a lower-elevation starting point, along with their respective route and speed plans. After the trains start, they travel along the preset route and speed toward their destination at a higher altitude. During travel, the control module, based on preset instructions, instructs the water tank train to gradually drain the water from its tank. During this process, the water tank valves on the water tank train gradually open, allowing water to flow out under gravity and into the drainage system through pipes connected to the lower part of the tank. The drainage system then directs the drained water back to the reservoir for subsequent reuse. This process may involve activating water pumps and switching drainage pipes to ensure smooth water return to the reservoir. When the train approaches or reaches a designated location, the control module issues a positioning command to the flatbed train via wireless communication. Upon receiving the command, the flatbed train uses its built-in navigation system and positioning sensors to accurately locate itself and ensure alignment with the energy storage stack. After the flatbed train is positioned, the control module issues a start command to the overhead crane positioned around the flatbed train. Once started, the overhead crane uses its translation and lifting functions to adjust to the position corresponding to the energy storage block on the flatbed train. During this process, the crane's boom may require multiple fine-tuning to ensure precise alignment. Under the control of the control module, the overhead crane's gripping mechanism activates and firmly grasps the energy storage block. The gripping mechanism may utilize a mechanical gripper or electromagnetic suction cup to prevent the block from falling during the gripping and movement process. The overhead crane uses its lifting function to lift the energy storage block from the flatbed train and translate it to the designated location in the energy storage stack. Once it reaches the designated location, the overhead crane's gripping mechanism releases, and the energy storage block is securely placed in the energy storage stack. This gripping and placement process is repeated until all energy storage blocks on the flatbed train have been delivered to the energy storage stack. Once all energy storage blocks have been delivered, the control module issues a command instructing the flatbed train and water tank train to return to their starting point or proceed with other tasks.

[0084] Imagine a power plant located in a mountainous area. During off-peak hours, energy storage blocks need to be delivered from a warehouse at a lower elevation to the power plant's storage area at a higher elevation. To conserve water, the power plant uses water tank trains to collect rainwater during transport and drain it for recycling upon return. At the start of the off-peak period, the control module instructs a flatbed train (loaded with energy storage blocks) and a water tank train (with full water tanks) to depart from the low-elevation warehouse and travel along a pre-set track toward the power plant at a higher elevation. During the journey, the water tank train gradually drains the water from its tanks according to the control module's instructions, and the water is then channeled back to a reservoir near the warehouse through a drainage system. As the train approaches the power plant, the control module instructs the flatbed train to precisely position itself to ensure alignment with the energy storage stack. After the overhead crane is activated, it uses its translation and lifting functions to adjust to the position corresponding to the energy storage blocks on the flatbed train. A gripping mechanism firmly grasps the energy storage blocks, lifts them, and moves them horizontally into the energy storage stack. This process repeats until all energy storage blocks have been delivered to the stack. Subsequently, the flatbed train and the water tank train returned to the depot under the command of the control module.

[0085] Distributing energy storage blocks during off-peak hours effectively utilizes grid power and reduces overall energy costs. During operation, the water tank train gradually drains the water from its tanks and directs it back to the reservoir through a drainage system, recycling and reusing water resources and improving water efficiency. The entire distribution process is centrally controlled by a control module, achieving a high degree of automation and intelligence. This not only reduces manual intervention but also improves operational precision and efficiency. The overhead crane's translation and lifting capabilities and gripping mechanism enable precise grasping of energy storage blocks from the flatbed train and placement into the energy storage stack, further enhancing operational automation. By recycling and reusing water, dependence on and consumption of natural water resources is reduced, contributing to the protection of water resources and the ecological environment. Distributing energy storage blocks during off-peak hours helps balance grid loads, reduce fluctuations and emissions, and has positive environmental benefits. The coordinated operation of the flatbed train and water tank train, along with the precise operation of the overhead crane, creates an efficient logistics distribution system. This not only improves the efficiency of energy storage block distribution but also reduces logistics costs. Through precise positioning and automated operations, errors and delays in the delivery process are reduced, improving logistics reliability and punctuality. The control module can flexibly adjust the operating parameters and processes of trains and overhead cranes based on actual needs, allowing the system to adapt to different delivery requirements and scenarios. Through efficient resource utilization, enhanced automation, and improved logistics efficiency, overall operational benefits have been significantly improved. This not only reduces operating costs but also improves service quality and customer satisfaction.

[0086] In a preferred embodiment of the present invention, in step 15, during peak electricity consumption, the control module instructs the pumping system to pump water from the reservoir into the empty water tank of the water tank train through the main pumping pipe and branch pipes based on the signal from the liquid level sensor; at the same time, the control module instructs the overhead crane surrounding the flatbed train to start, using the translation and lifting function and the gripping device to grab the energy storage blocks from the energy storage stack and place them on the flatbed train, which may include:

[0087] Step 151: The control module receives the signal from the liquid level sensor and analyzes the signal to determine whether the current water level meets the pumping conditions and whether the empty water tank of the water tank train needs to be replenished. At the same time, the control module monitors the status of the flatbed train to determine whether the energy storage block is loaded and obtains the analysis results.

[0088] Step 152: Based on the analysis results, the control module issues operation instructions to the pumping system and the overhead crane respectively;

[0089] In step 153, the pumping system receives instructions from the control module, starts the main pumping pipe and branch pipes, and pumps the water in the reservoir into the empty water tank of the water tank train; the overhead crane receives instructions from the control module, starts the translation and lifting function and the gripping device, moves the overhead crane to the top of the energy storage stack, and uses the gripping device to grab the energy storage block and place it on the flatbed train.

[0090] In this embodiment of the present invention, during peak hours, to efficiently utilize electricity and meet peak demand, the control module instructs the pumping system and the overhead cranes surrounding the flatbed train to perform a series of operations based on signals from the liquid level sensor. These operations include pumping water from the reservoir into the empty water tanks of the tank train and grabbing energy storage blocks from the energy storage stack and placing them on the flatbed train. The process is as follows:

[0091] The control module first receives signals from the liquid level sensor, which reflect the current water level in the reservoir. The control module analyzes these signals to determine whether the current water level meets the pumping requirements. This typically involves comparing the current water level with a preset minimum pumping level. Simultaneously, the control module monitors the empty tanks of the water tank train to determine whether water replenishment is required. This is achieved by monitoring the tank sensors on the water tank train, which provide real-time feedback on the tank's fill status. Furthermore, the control module monitors the status of the flatbed train to determine whether it is ready for loading energy storage blocks. This includes checking the flatbed train's position, whether the doors are closed, and whether there is sufficient space for loading energy storage blocks. Based on the analysis results, the control module issues operational commands to the pumping system and the overhead crane. For the pumping system, these commands include information on activating the main and branch pumping pipes, as well as the amount of water to be pumped into the empty tanks of the water tank train. For the overhead crane, these commands include information on activating the translation and lifting functions and the gripping mechanism, as well as the location and number of energy storage blocks to be grasped. Upon receiving the command, the pumping system activates the main and branch pipes, pumping water from the reservoir into the empty tanks of the tank train. During the pumping process, the system automatically adjusts the pump flow rate based on pre-set water level control logic to ensure that the tanks do not overflow.

[0092] After receiving the command, the crane activates its translation and lifting functions and its gripping mechanism. The crane first moves above the energy storage stack and uses its gripping mechanism to precisely grasp the energy storage block. Once grasped, the crane uses its lifting function to raise the energy storage block to the appropriate height and translates it horizontally above the flatbed train. Finally, the crane releases its gripping mechanism and places the energy storage block on the flatbed train. The pumping system and crane repeat these steps until the empty water tanks of the tank train are filled and a sufficient number of energy storage blocks are loaded onto the flatbed train. Throughout the entire process, the control module continuously monitors the operating status of the pumping system and crane to ensure operational safety and efficiency. If any abnormality occurs, the control module immediately issues an alarm and takes appropriate emergency measures.

[0093] Suppose a power plant needs to urgently replenish water and load energy storage modules during peak electricity demand to meet power generation needs. During this period, the water level in the reservoir is monitored in real time by a level sensor and transmitted to the control module. The control module analyzes the water level and determines that the empty tank of the water tank train needs to be replenished. Meanwhile, the flatbed train is ready to load the energy storage modules. The control module issues a command to the pumping system, activating the main and branch pumping pipes. The pumps begin operating, pumping water from the reservoir into the empty tanks of the water tank train. During the pumping process, the control module adjusts the pump flow rate in real time based on water level fluctuations to prevent overflow. Simultaneously, the control module issues a command to the overhead crane, activating its translation and lifting functions and gripping mechanism. The overhead crane moves above the energy storage stack and precisely grasps the energy storage module. After grasping, the overhead crane lifts the energy storage module to the appropriate height and moves it horizontally above the flatbed train. Finally, the overhead crane releases the gripping mechanism, placing the energy storage module on the flatbed train. The pumping system and overhead crane repeat this process until the tank train's empty tanks are filled and the flatbed train has a sufficient number of energy storage blocks loaded. At this point, the control module issues a command, instructing the tank train and flatbed train to prepare for departure to areas requiring water and power.

[0094] During peak electricity demand periods, timely water replenishment to water tank trains ensures sufficient water supply during operation, meeting peak water demand and ensuring stable and reliable power supply. Simultaneously, energy blocks are quickly retrieved from the energy storage stack and loaded onto flatbed trains, providing timely energy replenishment for the power plant and enhancing the grid's peak-shaving capacity and emergency response speed. Based on real-time signals from the liquid level sensor, the control module intelligently determines the water level in the reservoir and the train's water tank demand, avoiding water waste and shortages and achieving optimal water resource allocation. Precisely controlling the grabbing and placement operations of the overhead crane effectively utilizes the energy blocks in the energy storage stack, improving energy efficiency and storage space utilization. The entire water replenishment and loading process is automated by the control module, reducing manual intervention and enhancing operational accuracy and safety. The control module monitors and adjusts the operating status of the pumping system and overhead crane in real time, enabling intelligent scheduling and fault warnings, reducing operation and maintenance costs. This automated and intelligent operational process shortens water replenishment and loading time, improving train operating efficiency and the power plant's production capacity. By optimizing resource allocation and reducing waste, operating costs are reduced and economic benefits are improved. At the same time, stable power supply also improves user experience and satisfaction.

[0095] In another preferred embodiment of the present invention, the water tank of the water tank train comprises:

[0096] Box 1, and each carriage is independently installed and removed from the box 1;

[0097] The water inlet 2 is provided at the top of the box body 1 and cooperates with the pumping system. During the peak period of electricity consumption, the pumping system draws water from the water reservoir through the main pumping pipe and branch pipes, and injects the water into the box body 1 through the water inlet 2;

[0098] The water outlet 3 is provided at the lower side of the box body 1. During the period of low power, the water in the box body 1 is discharged and returned to the water reservoir through the drainage system, thereby realizing automatic water storage and drainage.

[0099] In this embodiment of the present invention, housing 1 serves as the primary container for the water tank, storing water drawn from the reservoir. Housing 1 can be independently installed and removed from each train car. Water inlet 2 is located at the top of housing 1 and is closely connected to the pumping system. During peak power consumption periods, when the control module detects that the water level in the reservoir meets pumping requirements and the train's water tank requires refilling, it issues a command to the pumping system. The pumping system then activates, drawing water from the reservoir via a main pumping pipe and branch pipes. This water flows through water inlet 2 and is efficiently injected into housing 1, completing the refill process. The design of water inlet 2 takes into account smooth water flow and sealing, ensuring no leakage during the refill process while also reducing water flow resistance and improving refill efficiency. Water outlet 3 is located on the lower side of housing 1 to facilitate the drainage of water from housing 1 during low-power periods. Water outlet 3 is connected to the drainage system to ensure a smooth and efficient drainage process. During periods of low electricity consumption, when the control module detects that the water in the train's water tank needs to be drained, it issues a command to the drainage system. The drainage system then activates and drains the water from tank 1 through outlet 3. The drained water is then processed by the drainage system and returned to the reservoir, achieving water recycling. This design not only conserves water resources but also reduces operating costs. The control module is the "brain" of the entire system, receiving signals from devices such as liquid level sensors and train status sensors, and issuing corresponding commands based on these signals.

[0100] Liquid level sensors monitor water level changes in the reservoir and train water tanks in real time, providing accurate data support to the control module. Train status sensors monitor the train's operating status and location, ensuring the accuracy and safety of water replenishment and drainage operations. During peak power consumption periods, the control module determines the reservoir water level and train water tank demand based on signals from the liquid level sensors. It then issues a command to the pumping system to initiate water replenishment. The pumping system pumps water from the reservoir into the train water tanks via a main and branch pipes. During off-peak power periods, the control module determines the water level in the train water tanks based on a pre-set drainage plan or signals from the liquid level sensors. It then issues a command to the drainage system to initiate drainage. The drainage system then drains the water from the train water tanks through outlet 3, returning it to the reservoir.

[0101] Tank 1 can be independently installed and removed from each carriage. This modular design makes the water tank train more flexible in operation and maintenance. If a tank requires repair or replacement, it can be carried out quickly without affecting the normal operation of other tanks, thereby improving the overall availability and operational efficiency of the train. The water inlet 2, located on the top of tank 1, works closely with the pumping system to ensure that water can be quickly and efficiently pumped from the reservoir and injected into tank 1 during peak power consumption periods. This design reduces water waste and improves water storage efficiency. The water outlet 3, located on the lower side of tank 1, facilitates the rapid discharge of water from tank 1 during low-power periods, with water returned to the reservoir through the drainage system. This design not only recycles water resources but also reduces energy consumption during the drainage process. By coordinating with the pumping and drainage systems, the water tank of the water tank train achieves automated water storage and drainage functions. This reduces manual intervention, improves operational accuracy and safety, and also reduces operating costs. By integrating advanced sensors and control modules, water tanks can monitor water levels and status in real time and automatically adjust storage and drainage plans based on grid demand and operational strategies, enabling intelligent management. By efficiently utilizing and recycling water resources, water tank trains reduce reliance on and waste of natural water resources, contributing to environmental protection and sustainable development. Furthermore, by optimizing water storage and drainage strategies, they can reduce peak load on the grid, helping to reduce carbon emissions and address climate change. As a mobile water storage and regulation tool, water tank trains can provide a stable water supply during fluctuating grid demand. During peak demand periods, water can be rapidly replenished to meet grid demand; during off-peak demand periods, water can be drained to free up storage space, preparing for the next peak. This regulatory capability helps enhance grid stability and reliability.

[0102] In a preferred embodiment of the present invention, in step 16, a train fully loaded with water and energy storage blocks starts to travel downward from a destination at a higher altitude to a starting point at a lower altitude. During this process, the movement of the train, the gravity of the water, and the gravitational potential energy of the energy storage blocks are converted into electricity. The power generation device receives the electricity and stores or transmits the electricity to the power grid for user use. This process may include:

[0103] Step 161: The train, fully loaded with water and energy storage blocks, begins to accelerate down the downhill section under the action of gravity. As the train gradually decreases in altitude, gravitational potential energy and kinetic energy generated by the downhill slope accumulate.

[0104] Step 162: The energy conversion device is activated during the train's descent and begins to convert the gravitational potential energy and kinetic energy of the train, water, and energy storage blocks into electricity. The converted electricity is received in real time and stored in the train's energy storage system.

[0105] Step 163: When the train arrives at the departure point or the designated grid access point, the electricity in the energy storage system is transmitted to the grid through the transmission line;

[0106] Step 164 : The power grid receives the electricity and distributes it to various power consumption areas for users to use.

[0107] In this embodiment of the present invention, the train, water, and energy storage blocks begin to accelerate down a downhill section under the continuous force of gravity. As the train's altitude continues to decrease, the gravitational potential energy contained in the train (including the train itself, the water on board, and the energy storage blocks) is gradually released and converted into the train's kinetic energy. During the train's descent, an onboard energy conversion device (such as a generator) is activated. This device begins to convert the gravitational potential energy of the train, water, and energy storage blocks, as well as the kinetic energy generated by the descent, into electrical energy. The converted electrical energy is received in real time and transferred to the train's energy storage system (such as a battery pack, supercapacitor, etc.) for storage. When the train successfully arrives at the departure point or a pre-set grid access point, the energy stored in the energy storage system is safely and efficiently transferred to the grid via transmission lines. The grid receives this electrical energy generated by the train during its descent and distributes it to various power-consuming areas based on actual power demand. The grid distributes the received energy appropriately to ensure a stable and reliable power supply to various power-consuming areas (such as residential, commercial, and industrial areas). Users can directly use the electricity generated by the train during its downhill journey through the power facilities in their homes, businesses or public places to meet their electricity needs in daily life, production or commercial activities.

[0108] Imagine a train loaded with water and energy storage blocks descending from a mountaintop station at an altitude of 2,000 meters toward its starting point at the foot of the mountain at an altitude of 500 meters. As the train descends, its gravitational potential energy gradually converts into kinetic energy, accelerating its speed. When the train departs from the mountaintop station, the entire train (train, water, and energy storage blocks) possesses enormous gravitational potential energy. As the train descends, this gravitational potential energy is gradually released and converted into kinetic energy, gradually increasing its speed. When the train reaches a certain altitude, the onboard energy conversion device is activated. This device begins converting the gravitational potential energy and kinetic energy of the train, water, and energy storage blocks into electrical energy, which is then transmitted via power lines to the train's energy storage system for storage. As the train continues to descend, the electrical energy in the energy storage system gradually accumulates, preparing for subsequent power supply. By the time the train reaches its starting point at the foot of the mountain, its energy storage system has already stored a significant amount of electrical energy. This electrical energy is safely and efficiently transmitted via transmission lines to the nearby power grid, providing power to the surrounding area. The grid distributes the electricity it receives, ensuring a stable and reliable power supply to surrounding residential, commercial, and industrial areas. Residents use this electricity through electrical appliances at home to meet their daily needs.

[0109] During the downhill journey, the train accumulates gravitational potential and kinetic energy, effectively utilizing natural energy. This energy conversion method not only reduces dependence on traditional energy sources but also improves energy efficiency, helping to alleviate energy pressures. The gravitational potential and kinetic energy of the train, water, and energy storage blocks is converted into electricity, stored in the train's energy storage system, and then transmitted to the power grid for user use. The entire process generates virtually no pollutants. This helps reduce carbon emissions, improve air quality, and protect the ecological environment. Upon reaching the departure point or designated grid access point, the electricity stored in the train's energy storage system can be promptly transmitted to the grid via transmission lines. This not only provides additional power support for the grid but also alleviates power supply and demand imbalances during peak hours, enhancing grid stability and reliability. By recovering and utilizing energy during the train's descent, the demand for external power is reduced, lowering operating costs. Furthermore, transmitting the stored electricity to the grid generates additional economic benefits, enhancing overall economic efficiency. This energy recovery and utilization method aligns with the concept of sustainable development. It not only helps reduce energy consumption and environmental pollution, but also promotes the development and application of clean energy, contributing to sustainable social development.

[0110] In a preferred embodiment of the present invention, the calculation process of power conversion includes:

[0111] The total energy is obtained by obtaining the train body potential energy, water body potential energy and energy storage block potential energy generated by the conversion of gravitational potential energy during the train's descent, as well as the kinetic energy generated by the movement speed;

[0112] Based on the real-time energy conversion efficiency parameter, the total energy is converted into theoretical power generation;

[0113] Deduct the friction loss energy calculated from the train's running friction coefficient, mass and travel distance, as well as the air resistance loss energy calculated from the air resistance coefficient, frontal area, air density and speed parameters;

[0114] The final effective power generation is dynamically corrected in combination with the input power parameters to obtain the actual value of electric energy that can be stored or connected to the grid.

[0115] When applied specifically, the calculation of the above-mentioned power conversion can be implemented by the following formula. For example, the calculation formula for the converted power is:

[0116]

[0117] Where E represents the amount of electricity converted; η(t) represents the energy conversion efficiency that changes with time; E p represents the gravitational potential energy of the train; E w represents the gravitational potential energy of water; E sRepresents the gravitational potential energy of the energy storage block; E k represents kinetic energy; p(t) represents input power; μ represents friction coefficient; m represents mass; g represents acceleration due to gravity; d represents the distance traveled by the train; C d represents the air resistance coefficient; A represents the frontal area; ρ represents the air density; v represents the speed of the train.

[0118] In the embodiment of the present invention, E p Represents the gravitational potential energy of the train. E w Indicates the energy released by water flow. E s It is the energy stored in energy storage devices (such as batteries, capacitors, etc.). k is the kinetic energy of an object, which is related to its mass and velocity. η(t) is the efficiency of the energy conversion device, which varies with time. This efficiency determines how much of the input energy is converted into electricity. (1-η(t))×p(t) represents the energy lost due to inefficiency during the energy conversion process, where p(t) represents the input power or energy flow. μ×m×g×d represents the energy lost due to friction, where μ is the friction coefficient, m is the mass of the object, g is the acceleration due to gravity, and d is the distance or displacement. Represents the energy lost due to air resistance. d is the drag coefficient, A is the frontal area of ​​the object, ρ is the air density, and v is the object's velocity. Substituting all of these terms into the formula yields the converted charge, E.

[0119] Suppose there is a device that uses water flow to generate electricity, where: E p =1000J (gravitational potential energy generated by water level difference); E w =500J (energy generated by direct impact of water flow); E s = 200J (energy stored in the energy storage device); E k = 100 J (kinetic energy carried by the water flow); η(t) = 0.8 (energy conversion efficiency is 80%); p(t) = 2000 J / s (input power); μ = 0.05 (friction coefficient); m = 10 kg (mass of the object involved); g = 9.81 m / s 2 (acceleration due to gravity); d = 10 m (distance the object moves); C d =0.5 (air resistance coefficient); A = 0.1m 2 (the windward area of ​​the object); ρ = 1.225 kg / m 3 (air density); v = 10m / s (speed of the object).

[0120] Substitute into the formula for calculation:

[0121]

[0122] Therefore, the amount of electricity converted is approximately 960.325 joules.

[0123] The formula covers various forms of energy input, including potential energy (E p ), water flow energy (E w ), energy in energy storage devices (E s ) and kinetic energy (E k ), which can fully reflect the energy source of the energy conversion device in actual operation. At the same time, various energy loss factors, such as the loss caused by insufficient energy conversion efficiency (1-η(t))×p(t), friction loss μ×m×g×d and air resistance loss This makes power calculations more accurate and realistic. The energy conversion efficiency η(t) and other parameters (such as p(t) and v) can change over time, reflecting the performance changes of the energy conversion device under different operating conditions. This dynamic nature enables the formula to more accurately assess the power output of the energy conversion device in actual operation, providing strong support for optimizing device design and operation strategies.

[0124] In a preferred embodiment of the present invention, the above step 17, in which the train returns to the starting point after completing an up-and-down cycle, may include:

[0125] Conduct a comprehensive inspection of the train, including its mechanical components, electrical systems, and braking systems, to ensure it is in good condition. Verify that the train has sufficient fuel or power to meet the needs of both upstream and downstream operations. Check the train's communication system to ensure smooth communication with the dispatching center and other trains. Conduct a comprehensive inspection of the line the train will travel, including the track, signaling system, and switches, to ensure it is safe and trouble-free. Verify that all line facilities (such as stations, signals, and switches) are in proper working order. Determine key information such as the train's departure time, speed, and stops based on the train diagram and dispatch plan. Communicate this information to the train driver and dispatching center to ensure a clear understanding of the operation plan. At the departure point, the train starts according to dispatching instructions and gradually accelerates to the specified speed. The driver monitors the train's operating status to ensure smooth acceleration and adherence to speed limits. The train travels along the designated route and speed, stopping or not stopping at each station according to dispatching instructions. The driver and train attendants monitor the train's operating status and promptly address any abnormalities. Upon arrival at the terminal station on the upstream route, the train stops according to dispatching instructions. The driver and accompanying personnel perform relevant arrival procedures, such as passenger disembarkation and vehicle inspection.

[0126] After completing the necessary preparations at the uplink terminal, the train starts its descent according to the dispatcher's instructions. The driver confirms the train's good condition and ensures safe descent. The train travels down the designated route and speed, passing through various stations along the way and making or not making stops according to the dispatcher's instructions. The driver and train attendants continue to monitor the train's operation to ensure smooth and safe operation. When the train arrives at the downlink terminal (the departure station), it stops according to the dispatcher's instructions. The driver and train attendants carry out relevant arrival procedures, such as passenger disembarkation, vehicle inspection, and cleaning. A comprehensive train inspection is conducted to confirm any malfunctions or damage during the uplink and downlink cycles. Data from the train's uplink and downlink cycles, such as travel time, speed, and stops, are recorded.

[0127] like Figure 2 As shown, an embodiment of the present invention further provides a rail-type liquid gravity energy storage transportation control system, comprising:

[0128] The acquisition module is used to store water in the reservoir using natural precipitation when it rains, and to set the initial water level, maximum capacity, minimum capacity parameters of each reservoir, as well as related parameters of the water cycle, including the number of cycles, convergence conditions, simulated evaporation rate, and precipitation rate; it receives water level data from the liquid level sensor in real time, and calculates the simulated water level drop based on the preset evaporation rate and current water level to simulate the natural drop in water level, the increase in water level due to rainfall, and the runoff process to manage the water level of the reservoir and obtain simulation results; based on the simulation results, the control module adjusts the water inlet valve , the degree of opening of the drain valve determines whether to start the drainage system or water pump to transfer water resources; when during the power off period, when the flatbed train and the water tank train are preparing to run from a low-altitude starting point to a high-altitude destination, the control module instructs the water tank train to gradually discharge the water in the water tank, and the discharged water is guided back to the reservoir through the drainage system, wherein the control module instructs the overhead crane set around the flatbed train to start, and uses the translation and lifting function and the gripping device to move the energy storage blocks on the flatbed train to the energy storage stack to complete the distribution of the energy storage blocks;

[0129] The processing module is used to instruct the pumping system to pump the water in the water reservoir into the empty water tank of the water tank train through the main pumping pipe and branch pipes according to the signal of the liquid level sensor during the peak power consumption period; at the same time, the control module instructs the crane around the flatbed car train to start, and uses the translation and lifting function and the gripping device to grab the energy storage blocks from the energy storage stack and place them on the flatbed car train; the train fully loaded with water and energy storage blocks starts to run downward from the end point with a high altitude to the starting point with a low altitude. During this process, the movement of the train, the gravity of the water and the gravitational potential energy of the energy storage blocks are jointly converted into electricity. The power generation device receives the electricity and stores or transmits the electricity to the power grid for users to use; after completing an up and down cycle, the train returns to the starting point.

[0130] It should be noted that this system is a system corresponding to the above method, and all implementation methods in the above method embodiment are applicable to this embodiment and can achieve the same technical effects.

[0131] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A rail-type liquid gravity energy storage transportation control method, characterized in that: include: When it rains, the reservoir uses natural precipitation to store water, and sets the initial water level, maximum capacity, minimum capacity parameters of each reservoir, as well as relevant parameters of the water cycle, including the number of cycles, convergence conditions, simulated evaporation rate, and precipitation rate; Receive water level data from the liquid level sensor in real time, calculate the simulated water level drop based on the preset evaporation rate and current water level, and simulate the natural drop in water level, the increase in water level due to rainfall, and the runoff process to manage the water level in the reservoir and obtain simulation results; Based on the simulation results, the control module adjusts the opening degree of the water inlet valve and the water discharge valve, and decides whether to start the drainage system or the water pump to transfer water resources; During the electricity off-peak period, when the flatbed train and the water tank train are preparing to run from a low-altitude starting point to a high-altitude destination, the control module instructs the water tank train to gradually drain the water in the tank, and the discharged water is guided back to the reservoir through the drainage system. Among them, the control module instructs the overhead crane set around the flatbed train to start, and uses the translation and lifting function and the gripping device to move the energy storage blocks on the flatbed train to the energy storage stack to complete the distribution of the energy storage blocks.

2. The rail-type liquid gravity energy storage transportation control method according to claim 1, characterized in that: Also includes: During peak electricity consumption periods, the control module, based on signals from the liquid level sensor, instructs the pumping system to pump water from the reservoir into the empty water tanks of the water tank train through the main and branch pipes. Simultaneously, the control module instructs the overhead cranes surrounding the flatbed train to activate, using their translational lifting and gripping functions to grab energy storage blocks from the energy storage stack and place them on the flatbed train. A train fully loaded with water and energy storage blocks begins its journey from a higher altitude destination to a lower altitude starting point. During this journey, the train's motion, the gravity of the water, and the gravitational potential energy of the energy storage blocks are converted into electricity. The power generation device receives the electricity and stores or transmits it to the power grid for users. After completing an up and down cycle, the train returns to the starting point.

3. The rail-type liquid gravity energy storage transportation control method according to claim 2, characterized in that: The calculation process of the simulated water level drop includes: Based on the current water level data and the preset daily evaporation rate parameters, the water level drop caused by natural evaporation within a specified time interval is calculated; the rainwater increment calculated by the real-time rainfall parameters and the rainfall infiltration rate parameters is superimposed; the runoff loss determined by the runoff coefficient parameters and the current water level, as well as the seepage loss determined by the seepage rate parameters and the current water level, are deducted to obtain the simulated water level change.

4. The rail-type liquid gravity energy storage transportation control method according to claim 3, characterized in that: During low-power periods, when a flatbed train and a water-tank train are preparing to travel from a low-altitude starting point to a high-altitude destination, the control module instructs the water-tank train to gradually drain the water from its tank. The drained water is then directed back to the reservoir through the drainage system. The control module also instructs the overhead crane installed around the flatbed train to start, utilizing its translational lifting function and gripping device to move the energy storage blocks on the flatbed train to the energy storage stack, completing the distribution of the energy storage blocks. This includes: The control module issues a start command to the flatbed train and the water tank train, which includes a command to start from a starting point with a lower altitude in sequence; After the train starts, it travels towards the destination with a higher altitude. During the journey, the control module instructs the water tank train to gradually drain the water in the water tank according to the preset instructions, and guides the drained water back to the water reservoir through the drainage system; When the train approaches or arrives at the designated location, the control module sends a positioning instruction to the flatbed train; The flatbed train is positioned according to instructions and aligned with the energy storage stack; After the flatbed train is positioned, the control module sends a start command to the overhead cranes set up around the flatbed train; The overhead crane uses the translation and lifting functions to adjust to the position corresponding to the energy storage block on the flatbed train. Under the control of the control module, the gripping device of the overhead crane grabs the energy storage block and uses the lifting function to move the energy storage block from the designated position in the flatbed stack. The picking and placing process is repeated until all energy storage blocks are delivered to the energy storage stack to complete the delivery of energy storage blocks.

5. The rail-type liquid gravity energy storage transportation control method according to claim 4, characterized in that: During peak electricity consumption, the control module instructs the pumping system to pump water from the reservoir into the empty water tank of the water tank train through the main pumping pipe and branch pipes based on the signal from the liquid level sensor. At the same time, the control module instructs the overhead crane around the flatbed train to start, using the translation and lifting function and the gripping device to grab the energy storage blocks from the energy storage stack and place them on the flatbed train, including: The control module receives the signal from the liquid level sensor and analyzes the signal to determine whether the current water level meets the pumping conditions and whether the empty water tank of the water tank train needs to be replenished with water. At the same time, the control module monitors the status of the flatbed train to determine whether the energy storage block is loaded and obtains the analysis results; Based on the analysis results, the control module issues operating instructions to the pumping system and overhead crane respectively; The pumping system receives instructions from the control module, starts the main pumping pipe and branch pipes, and pumps the water in the reservoir into the empty water tank of the water tank train; the overhead crane receives instructions from the control module, starts the translation and lifting function and the gripping device, moves the overhead crane to the top of the energy storage stack, and uses the gripping device to grab the energy storage block and place it on the flatbed box train.

6. The rail-type liquid gravity energy storage transportation control method according to claim 5, characterized in that: The water tank of the water tank train comprises: A box body (1), wherein each carriage is independently installed and removed from the box body (1); The water inlet (2) is provided at the top of the box (1) and cooperates with the pumping system. During peak hours of electricity consumption, the pumping system draws water from the water reservoir through the main pumping pipe and branch pipes, and injects the water into the box (1) through the water inlet (2); The water outlet (3) is arranged at the lower side of the box (1). During the low power period, the water in the box (1) is discharged and returned to the water reservoir through the drainage system, thereby realizing automatic water storage and drainage.

7. The rail-type liquid gravity energy storage transportation control method according to claim 6, characterized in that: A train fully loaded with water and energy storage blocks begins its journey from a high-altitude destination to a low-altitude starting point. During this journey, the train's motion, the gravity of the water, and the gravitational potential energy of the energy storage blocks are converted into electricity. The power generation device receives the electricity and stores or transmits it to the power grid for users to use, including: The train is fully loaded with water and energy storage blocks. Under the action of gravity, it begins to accelerate down the downhill section. As the train's altitude gradually decreases, the gravitational potential energy and the kinetic energy generated by the descent accumulate. The energy conversion device is activated during the train's descent and begins to convert the gravitational potential energy and kinetic energy of the train, water, and energy storage blocks into electricity. The converted electricity is received in real time and stored in the train's energy storage system. When the train arrives at the departure point or the designated grid access point, the electricity in the energy storage system is transmitted to the grid through the transmission line; The power grid receives electricity and distributes it to various power consumption areas for users to use.

8. The rail-type liquid gravity energy storage transportation control method according to claim 7, characterized in that: The calculation process of power conversion includes: The total energy is obtained by obtaining the train body potential energy, water body potential energy and energy storage block potential energy generated by the conversion of gravitational potential energy during the train's descent, as well as the kinetic energy generated by the movement speed; Based on the real-time energy conversion efficiency parameter, the total energy is converted into theoretical power generation; Deduct the friction loss energy calculated from the train's running friction coefficient, mass and travel distance, as well as the air resistance loss energy calculated from the air resistance coefficient, frontal area, air density and speed parameters; The final effective power generation is dynamically corrected in combination with the input power parameters to obtain the actual value of electric energy that can be stored or connected to the grid.

9. A rail-type liquid gravity energy storage transportation control system, which implements the method according to any one of claims 1 to 8, characterized in that: include: The acquisition module is used to store water in the reservoir using natural precipitation when it rains, and to set the initial water level, maximum capacity, minimum capacity parameters of each reservoir, as well as related parameters of the water cycle, including the number of cycles, convergence conditions, simulated evaporation rate, and precipitation rate; it receives water level data from the liquid level sensor in real time, and calculates the simulated water level drop based on the preset evaporation rate and current water level to simulate the natural drop in water level, the increase in water level due to rainfall, and the runoff process to manage the water level of the reservoir and obtain simulation results; based on the simulation results, the control module adjusts the water inlet valve , the degree of opening of the drain valve determines whether to start the drainage system or water pump to transfer water resources; when during the power off period, when the flatbed train and the water tank train are preparing to run from a low-altitude starting point to a high-altitude destination, the control module instructs the water tank train to gradually discharge the water in the water tank, and the discharged water is guided back to the reservoir through the drainage system, wherein the control module instructs the overhead crane set around the flatbed train to start, and uses the translation and lifting function and the gripping device to move the energy storage blocks on the flatbed train to the energy storage stack to complete the distribution of the energy storage blocks; The processing module is used to instruct the pumping system to pump the water in the water reservoir into the empty water tank of the water tank train through the main pumping pipe and branch pipes according to the signal of the liquid level sensor during the peak power consumption period; at the same time, the control module instructs the crane around the flatbed car train to start, and uses the translation and lifting function and the gripping device to grab the energy storage blocks from the energy storage stack and place them on the flatbed car train; the train fully loaded with water and energy storage blocks starts to run downward from the end point with a high altitude to the starting point with a low altitude. During this process, the movement of the train, the gravity of the water and the gravitational potential energy of the energy storage blocks are jointly converted into electricity. The power generation device receives the electricity and stores or transmits the electricity to the power grid for users to use; after completing an up and down cycle, the train returns to the starting point.

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