Climbing and energy storage integrated system utilizing rails and carriages

Abstract

The invention belongs to the technical field of energy storage, and provides a rail and carriage climbing energy storage integrated system which comprises a trapezoidal combined rail module which is composed of two rails connected in parallel, and the two rails are combined through transverse bolts, fixed left and right and spaced to form a narrow and long trapezoidal combined rail. Cement sleepers which are popular nowadays are changed into sleepers made of wood, a large amount of wood is occupied, forestry development is promoted, phase change and carbon sequestration are achieved, gravel for paving is made of brick-mixed set cement in construction waste and placed below the sleepers, and the cement gravel contains a large amount of calcium hydroxide and can slowly absorb carbon dioxide in air, so that the carbon dioxide in the air can be slowly absorbed, and the carbon dioxide in the air can be absorbed. The calcium carbonate becomes neutral and is stable; through the optimized design of the trapezoidal combined track and the energy storage compartment, efficient conversion between electric energy and potential energy is achieved, the energy conversion efficiency is remarkably improved, the problem that in the existing energy storage technology, the energy conversion efficiency is low can be effectively solved, and reliable technical support is provided for large-scale wind-solar-electricity peak load shifting.

Description

Technical Field

[0001] The present invention belongs to the technical field of energy storage, and in particular relates to an integrated energy storage system utilizing rails and carriages for climbing. Background Art

[0002] With the global energy transition and the advancement of sustainable development, rail transport, as an efficient and low-carbon mode of transportation, is attracting increasing attention for its energy efficiency. Traditional rail systems generate significant amounts of recoverable energy during operation, particularly kinetic energy generated during braking and downhill travel, as well as energy lost due to gravity when climbing. However, existing technologies for recycling this potential energy remain significantly limited.

[0003] In the field of railway transportation, existing energy storage technologies (such as batteries, flywheels, supercapacitors, etc.) generally have problems such as poor compatibility with railway systems, low energy conversion efficiency, and large space occupation. Specifically, the battery energy storage system has limited charging and discharging efficiency and a short lifespan, the flywheel energy storage has high maintenance costs, the supercapacitor energy density is insufficient, and traditional pumped storage is limited by geographical conditions. In addition, these technologies are difficult to efficiently recover the kinetic energy generated by the train during braking or downhill, and cannot directly use the stored energy to assist in climbing, resulting in a large amount of energy waste.

[0004] To this end, those skilled in the art have proposed an integrated energy storage system utilizing rails and carriages for climbing to solve the problems raised in the background art. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides an integrated energy storage system using rails and carriages for climbing, so as to solve the problems of poor compatibility with railway systems, low energy conversion efficiency, and large space occupation in existing energy storage technologies in the field of railway transportation.

[0006] An integrated energy storage system utilizing rails and carriages for climbing slopes includes a trapezoidal combined track module: consisting of two parallel rails connected and fixed left and right by cross bolts to maintain spacing, forming a narrow and long trapezoidal combined track; the cross bolts function as racks for engaging with drive wheels;

[0007] Energy storage car module: The wheels of the car are composed of a combination of bilaterally symmetrical parallel traditional railway wheels and a drive wheel with giant teeth on the outer periphery equipped with a hub motor. The drive wheel is located in the middle of the trapezoidal combined track and meshes with the cross bolt to form a gear and rack relationship;

[0008] Power supply module: Power supply lines from wind and photovoltaic power are respectively arranged on both sides of the trapezoidal combined track, and the power supply lines maintain sliding contact with the power input end of the energy storage compartment through zigzag elastic brackets;

[0009] Back-transmission grid module: A power transmission line for the back-transmission grid is set on the other side of the two sides of the trapezoidal combined track opposite to the power supply module, and the transmission line maintains sliding contact with the power generation output end of the energy storage car through a zigzag elastic bracket;

[0010] Control module: used to control the climbing and descending process of the energy storage car, including starting, accelerating, decelerating, stopping, and adjusting the power generation intensity. The control module performs real-time control based on the speed and position of the energy storage car and the needs of the power grid;

[0011] Energy storage management module: used to monitor and manage the energy conversion efficiency and energy storage status of the energy storage compartment to ensure efficient and stable operation of the energy storage process.

[0012] Preferably, in the energy storage compartment module, the wheel diameter of the conventional wheel is smaller than the wheel diameter of the drive wheel, the axis position of the conventional wheel is lower than the axis position of the drive wheel, the conventional wheel is a passive wheel when climbing a slope, and is equipped with a brake when going downhill, and the wheel diameter ratio r of the conventional wheel to the drive wheel satisfies the following formula: Among them, d 传统车轮 is the wheel diameter of the traditional wheel, d 驱动轮 is the wheel diameter of the driving wheel. At the same time, the wheelbase L between the traditional wheel and the driving wheel satisfies the following formula: L = d 驱动轮 ×sin(θ)+d 传统车轮 ×cin(θ), where θ is the track slope angle.

[0013] Preferably, the control module uses the following algorithm formula to adjust the power generation strength, P 发电 =k×(v 目标 -v 实际 ), where P 发电 represents the generated power, k is the proportional coefficient, v 目标 is the target speed, v 实际 is the actual vehicle speed, and the proportional coefficient k ranges from 0.1 to 0.5. At the same time, the control module also uses the following formula to predict the vehicle speed: Among them, F 牵引 is the traction force, F 阻力 is the running resistance, m is the mass of the energy storage compartment, and Δt is the time step.

[0014] Preferably, in the energy storage compartment module, the energy conversion efficiency of the energy storage compartment during the climbing and descending process is calculated using the following algorithm: Where η represents the energy conversion efficiency, E 输出 is the electrical energy output by the generator when going downhill, E 输入The control module monitors the energy conversion efficiency of the energy storage compartment in real time according to the formula to ensure that it is not lower than the set threshold, and sets the threshold η 阈值 is 75%, when η<η 阈值 When the load is too high, the control module will trigger an alarm and adjust the operating parameters of the energy storage compartment. The dynamic adjustment of energy conversion efficiency adopts the following formula: 调整 =η+α×(E 输入 -E 输出 ), where α is the adjustment coefficient, and its value range is 0.01 to 0.05.

[0015] Preferably, the system further includes an off-grid energy storage module, which is combined with wind and solar power to establish an off-grid power station, thereby combining energy storage with cold storage. The cold storage includes a refrigerated cold storage and a frozen cold storage. The energy distribution of the off-grid energy storage module is calculated using the following formula: Among them, E 分配 represents the energy allocated to the cold storage, E 总 is the total energy of the off-grid power station, n is the number of cold storages, P 冷库 is the power requirement of the cold storage, P 总 is the total power of the off-grid power station.

[0016] Preferably, in the energy storage compartment module, the operating range of the energy storage compartment is controlled within 8 kilometers, and the vehicle speed is controlled within 10 kilometers per hour. The control module performs real-time monitoring and adjustment according to the position and speed of the energy storage compartment. The control module uses the following formula to monitor the position and speed: d = v × t, Wherein d is the running distance of the energy storage vehicle, v is the vehicle speed, and t is the time.

[0017] Preferably, the energy storage management module includes an energy monitoring unit and a state feedback unit. The energy monitoring unit is used to monitor the energy input and output of the energy storage compartment in real time. The state feedback unit is used to feed back the monitored energy state to the control module. The energy monitoring unit uses the following formula for energy monitoring E 总 =E 输入 +E 输出 , ΔE=E 输出 -E 输入 , where E 总 is the total energy of the energy storage compartment, E 输入 is the energy input, E 输出 is the energy output, and ΔE is the energy change.

[0018] Preferably, the power supply module and the backhaul grid module both adopt elastic contact technology to ensure stable contact between the energy storage compartment and the power supply line and the transmission line during operation. The contact pressure P of the elastic contact technology satisfies the following formula: P=k'×F, where P is the contact pressure, k' is the elastic coefficient, and F is the force. The elastic coefficient k' ranges from 0.05 to 0.15. The energy storage compartment module also includes a backup power supply unit. The power of the backup power supply unit satisfies the following formula: Among them, P 备用 is the power of the power supply unit, E 备用 is the total energy of the backup power supply unit, t 备用 is the duration of the backup power supply unit, the total energy E of the backup power supply unit 备用 Not less than 20% of the energy required by the energy storage compartment during normal operation, for a duration of t 备用 Not less than 2 hours, the system also includes a remote monitoring module, the remote monitoring module is connected to the control module through wireless communication technology, and the data transmission rate R of the remote monitoring module satisfies the following formula: Where L is the amount of data transmitted, T is the transmission time, and the signal strength S of the remote monitoring module 信号 The following formula is used for evaluation: Among them, P 发射 is the transmit power, is the transmission distance, and G is the antenna gain.

[0019] Preferably, the rail sleepers are made of wood instead of the popular cement sleepers today, which occupies a large amount of wood, promotes forestry development, and fixes carbon in disguised form. The brick-concrete cement stone in the construction waste is used to make paving gravel and place it under the sleepers. The cement gravel contains a large amount of calcium hydroxide, which will slowly absorb carbon dioxide in the air and become neutral calcium carbonate and stabilize. At the same time, the track processing cost is very low, and I-beams of various specifications can be used as tracks. The processing tools are all small and can be processed on site.

[0020] Preferably, a ballast block is provided in the energy storage compartment to increase the overall mass of the compartment, accumulate more potential energy when going uphill, and release more kinetic energy when going downhill, thereby increasing the overall power. The ballast three-dimensional cement block has two purposes: one is to act as a ballast, and the other is to act as a container for dirt and grime, for storing toxic waste containing heavy metals such as mercury, lead, cadmium, thallium, and dry cell solids. The cement is only its outer shell to ensure that the dirt inside cannot leak out.

[0021] Through the above technical solution,

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The present invention realizes the efficient conversion of electrical energy and potential energy through the optimized trapezoidal combination track and energy storage car design, significantly improving the energy conversion efficiency. It can effectively solve the problem of low energy conversion efficiency in existing energy storage technology, and provide reliable technical support for large-scale wind and solar power peak shaving and valley filling. The system is particularly suitable for the northern cold and frozen areas, solving the problem of limited performance of existing energy storage technology in low temperature environments, and providing an ideal solution for the energy storage needs of the cold and frozen areas north of the Yellow River. At the same time, its design is also suitable for a variety of geographical environments and application scenarios, and has a wide range of applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Schematic diagram of the system module in the present invention; DETAILED DESCRIPTION

[0025] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0026] Example 1: As shown in the attached Figure 1 The present invention provides an integrated energy storage system utilizing rails and carriages for climbing and climbing. The trapezoidal combined track module is composed of two parallel rails, which are connected and fixed on the left and right sides by cross bolts to maintain a spacing, forming a narrow and long trapezoidal combined track. The cross bolts serve as racks for engaging with the drive wheels. The trapezoidal track has a very low processing cost and can be made of I-beams of various specifications. The processing tools are small and can be processed on site.

[0027] Energy storage car module: The car's wheels are composed of a combination of bilaterally symmetrical parallel conventional railway wheels and a drive wheel with giant teeth on the outer circumference and equipped with a hub motor. The drive wheel is located in the middle of the trapezoidal combined track and meshes with the cross bolts to form a gear and rack relationship.

[0028] Power supply module: Power supply lines from wind and solar power are set on both sides of the trapezoidal combined track. The power supply lines maintain sliding contact with the power input end of the energy storage car through zigzag elastic brackets;

[0029] Feedback grid module: A power transmission line for the power grid is set on both sides of the trapezoidal combined track opposite the power supply module. The transmission line maintains sliding contact with the power output end of the energy storage car through a zigzag elastic bracket, and is used to transmit the electricity generated by the generator of the energy storage car when it goes downhill to the grid;

[0030] Control module: used to control the energy storage car's climbing and descending processes, including starting, accelerating, decelerating, stopping, and adjusting the power generation intensity. The control module performs real-time control based on the energy storage car's speed, position, and grid demand;

[0031] Energy storage management module: used to monitor and manage the energy conversion efficiency and energy storage status of the energy storage compartment to ensure efficient and stable operation of the energy storage process.

[0032] As can be seen from the above, the innovative design of the trapezoidal combination track and energy storage car achieves the efficient climbing energy storage and downhill energy release functions of the energy storage car, while increasing the overall mass of the car. When going uphill, it will accumulate more potential energy and release more kinetic energy when going downhill, thereby improving the overall power. At the same time, brick-concrete cement stones from construction waste are used to make paving gravel (placed under the sleepers). Cement gravel contains a large amount of calcium hydroxide, which will slowly absorb carbon dioxide from the air, turning into neutral calcium carbonate and stabilizing it, making it more environmentally friendly. At the same time, the three-dimensional cement blocks used for weighting in this article have two purposes: one is to weigh down, and the other is to serve as a container for dirt and grime, used to collect non-radioactive toxic waste containing heavy metals and other solids (such as mercury, lead, cadmium, thallium, and dry batteries). The cement is only its outer shell, ensuring that the dirt inside cannot leak out. Compared with existing energy storage technologies, this system has higher energy conversion efficiency, stronger frost resistance, and wider applicability. It can effectively solve the problem of limited performance of existing energy storage technologies in low temperature environments and is particularly suitable for cold and frozen areas in northern China. Furthermore, the system operates close to the ground, avoiding the potential safety hazards associated with high-altitude operations and hazardous terrain, thus enhancing system safety and reliability. Precise control by the control module and energy storage management module further optimizes the energy storage process and improves overall system performance.

[0033] Example 2: As shown in the attached Figure 1 As shown: This embodiment is basically the same as the previous embodiment, except that, in the energy storage compartment module, the wheel diameter of the traditional wheel is smaller than the wheel diameter of the drive wheel, the axis position of the traditional wheel is lower than the axis position of the drive wheel, the traditional wheel is a passive wheel when climbing, and is equipped with a brake when going downhill. The wheel diameter ratio r of the traditional wheel to the drive wheel satisfies the following formula Among them, d 传统车轮 is the wheel diameter of the traditional wheel, d 驱动轮 is the wheel diameter of the driving wheel. At the same time, the wheelbase L between the traditional wheel and the driving wheel satisfies the following formula: L = d 驱动轮 ×sin(θ)+d 传统车轮 ×cin(θ), where θ is the track slope angle. By rationally designing the wheel diameter ratio between conventional wheels and drive wheels, the conventional wheels can provide sufficient support when climbing. At the same time, when descending, they cooperate with the brakes to effectively control the vehicle speed and ensure operational safety. This design improves the stability and safety of the energy storage car under different working conditions and reduces operational risks.

[0034] Preferably, the control module uses the following algorithm formula to adjust the power generation strength, P 发电 =k×(v 目标 -v 实际 ), where P发电 represents the generated power, k is the proportional coefficient, v 目标 is the target speed, v 实际 is the actual vehicle speed, and the value range of the proportional coefficient k is 0.1 to 0.5. This formula can adjust the power generation power in real time according to the difference between the actual vehicle speed and the target vehicle speed, ensuring that the coasting speed of the energy storage car is stable within the target range, improving the accuracy and response speed of speed control. This control method can achieve precise speed control of the energy storage car, ensuring its stable operation during downhill power generation and improving energy conversion efficiency. At the same time, the control module also uses the following formula to predict the vehicle speed, Among them, F 牵引 is the traction force, F 阻力 is the running resistance, m is the mass of the energy storage compartment, and Δt is the time step.

[0035] Specifically, in the energy storage compartment module, the energy conversion efficiency of the energy storage compartment during climbing and descending is calculated using the following algorithm formula: Where η represents the energy conversion efficiency, E 输出 is the electrical energy output by the generator when going downhill, E 输入 The control module monitors the energy conversion efficiency of the energy storage compartment in real time according to the formula to ensure that it is not lower than the set threshold, and sets the threshold η 阈值 is 75%, when η<η 阈值 When the load is too high, the control module will trigger an alarm and adjust the operating parameters of the energy storage compartment. The dynamic adjustment of energy conversion efficiency adopts the following formula: 调整 =η+α×(E 输入 -E 输出 ), where α is the adjustment coefficient, and its value range is 0.01 to 0.05. This formula can monitor the energy conversion efficiency of the energy storage compartment in real time to ensure that it is not lower than the set threshold. This method can promptly detect abnormal conditions in the energy conversion process, adjust the operating parameters in time, and improve the operating efficiency and reliability of the system.

[0036] From the above, it can be seen that the present invention optimizes the wheel diameter ratio between traditional wheels and drive wheels to ensure that the wheels provide stable support and reliable braking function under different working conditions, thereby significantly improving the operating stability and safety of the energy storage compartment. It introduces a power generation adjustment algorithm based on speed difference to achieve precise control of power generation intensity, so that the vehicle speed can be stably maintained within a preset range, further optimizing the energy storage process and improving the operating efficiency of the system. Through the real-time monitoring and dynamic adjustment mechanism of energy conversion efficiency, it ensures that the system can maintain a high energy conversion efficiency under different working conditions, effectively avoiding energy waste and enhancing the economy and practicality of the system.

[0037] Example 3: As shown in the attached Figure 1As shown: Based on the first embodiment, the system also includes an off-grid energy storage module. The off-grid energy storage module is combined with wind and solar power to establish an off-grid power station, realizing the combination of energy storage and cold storage. The cold storage includes refrigerated cold storage and frozen cold storage. The energy distribution of the off-grid energy storage module is calculated using the following formula: Among them, E 分配 represents the energy allocated to the cold storage, E 总 is the total energy of the off-grid power station, n is the number of cold storages, P 冷库 is the power requirement of the cold storage, P 总 The total power of the off-grid power station is 100W. The temperature of the refrigerated cold storage is not lower than 0 degrees, which is used to preserve fruit and vegetable products. The maximum temperature of the frozen cold storage is not higher than 0 degrees, which is used to preserve meat and make and store ice cubes. When there is too much new energy electricity, the energy storage vehicle is driven to climb the slope to store energy and make ice cubes at the same time. When the new energy electricity is insufficient, the energy storage vehicle is driven downhill to release electricity. At the same time, the ice cubes in the frozen cold storage are moved to the refrigerated cold storage to cool down. An off-grid power station is established with integrated load and storage, combining energy storage with cold storage to reduce the burden on the large power grid and upgrade the original freeze-resistant energy storage to antifreeze energy storage.

[0038] Furthermore, in the energy storage compartment module, the operating range of the energy storage compartment is controlled within 8 kilometers, and the vehicle speed is controlled within 10 kilometers per hour. The control module monitors and adjusts the position and speed of the energy storage compartment in real time. The control module uses the following formula to monitor the position and speed: d = v × t, Where d is the operating distance of the energy storage car, v is the speed, and t is the time. By limiting the operating range and speed of the energy storage car and monitoring and adjusting its operating status in real time, the operating risk can be effectively reduced and the safety of the system can be improved. This design pays more attention to operational safety and can effectively avoid safety accidents caused by excessive speed or excessive operating range.

[0039] Preferably, the energy storage management module includes an energy monitoring unit and a state feedback unit. The energy monitoring unit is used to monitor the energy input and output of the energy storage compartment in real time. The state feedback unit is used to feed back the monitored energy state to the control module. The energy monitoring unit uses the following formula for energy monitoring E 总 =E 输入 +E 输出 , ΔE=E 输出 -E 输入 , where E 总 is the total energy of the energy storage compartment, E 输入 is the energy input, E 输出is the energy output, ΔE is the energy change, and the energy storage management module can monitor and feedback the energy status of the energy storage compartment in real time, provide accurate data support for the control module, and realize precise control and optimization of the energy storage process. This design improves the intelligence level of energy storage management, further optimizes the energy storage process, and improves the operating efficiency and stability of the system.

[0040] Specifically, both the power supply module and the backhaul grid module adopt elastic contact technology to ensure stable contact between the energy storage compartment and the power supply line and the transmission line during operation. The contact pressure P of the elastic contact technology satisfies the following formula P=k'×F, where P is the contact pressure, k' is the elastic coefficient, and F is the force. The value range of the elastic coefficient k' is 0.05~0.15. By adopting elastic contact technology, this claim ensures stable contact between the energy storage compartment and the power supply line and the transmission line during operation, effectively avoiding power transmission interruption or instability caused by poor contact. This technology adjusts the elastic coefficient k' to adapt to different loads and operating speeds, thereby improving the adaptability and reliability of the system and reducing failures and maintenance costs caused by poor contact.

[0041] Furthermore, the energy storage compartment module also includes a backup power supply unit, and the power of the backup power supply unit satisfies the following formula: Among them, P 备用 is the power of the power supply unit, E 备用 is the total energy of the backup power supply unit, t 备用 is the duration of the backup power supply unit, the total energy E of the backup power supply unit 备用 Not less than 20% of the energy required by the energy storage compartment during normal operation, duration t 备用 The system is powered for no less than 2 hours. By introducing a backup power supply unit, additional redundancy and reliability are provided to the system. In extreme cases such as insufficient wind and solar power or grid failure, the backup power supply unit can provide temporary power support for the energy storage car to ensure the normal operation of the system. This design significantly improves the system's risk resistance and reduces system downtime caused by external energy supply interruptions.

[0042] Specifically, the system also includes a remote monitoring module, which is connected to the control module via wireless communication technology. The data transmission rate R of the remote monitoring module satisfies the following formula: Where L is the amount of data transmitted, T is the transmission time, and the signal strength S of the remote monitoring module 信号 The following formula is used for evaluation: Among them, P 发射 is the transmit power, is the transmission distance, G is the antenna gain, and by introducing a remote monitoring module, remote monitoring and management of the energy storage system is achieved. Users can understand the system operating status in real time and perform remote operations. This design significantly improves the system's operational convenience and management efficiency, reduces the labor cost of on-site maintenance and monitoring, and improves the system's response speed and fault handling capabilities.

[0043] Preferably, when in use, a tank car can be used to climb a slope. A train railway cannot climb a slope, but a tank car can climb a slope of up to 45 degrees. Because the tank has teeth, the operation mode of the tank-driven large gear can be known that the tank's main drive large gear is climbing a narrow and long ladder. The other small wheels are the ones that bear the weight of the tank at the bottom, and the ones at the top are the lifting chain rails. Therefore, this article combines the tank with the train, and the driving large gear equipped with the hub motor bites the ladder track with its teeth to achieve climbing, driving the loaded carriage to climb the slope and accumulate potential energy. The function of the other small wheels is to lift the loaded carriage. Their climbing ability depends on the size of the friction between the wheel and the track surface. The train wheel and the track are two smooth surfaces in contact, and the friction is small, while the tank-driven large gear and its ladder track are a combination of gears and racks, which is the most reliable power transmission method. This combination will have the function of climbing.

[0044] As can be seen from the above, the present invention has comprehensively optimized power supply stability, system redundancy design, and remote monitoring and management, significantly improving the reliability, stability, and intelligence level of the entire energy storage system, and providing solid technical support for achieving efficient, safe, and reliable energy storage solutions.

[0045] The logic and / or steps represented in the flowchart or otherwise described herein may be considered, for example, as an ordered list of executable instructions for implementing logical functions, and may be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a system including a processor, or other system that can fetch and execute instructions from an instruction execution system, apparatus, or device).

[0046] It should be understood that various parts of the present invention can be implemented using hardware, software, firmware, or a combination thereof. In the above-described embodiments, multiple steps or methods can be implemented using software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented using hardware, as in another embodiment, any one of the following technologies known in the art or a combination thereof can be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application-specific integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0047] Those skilled in the art will appreciate that all or part of the steps in the method for implementing the above-mentioned embodiment can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium. When the program is executed, it includes one or a combination of the steps of the method embodiment.

[0048] Furthermore, the functional units in the various embodiments of the present invention may be integrated into a single processing module, each unit may exist physically separately, or two or more units may be integrated into a single module. The aforementioned integrated modules may be implemented in the form of hardware or software functional modules. If the integrated modules are implemented in the form of software functional modules and sold or used as independent products, they may also be stored in a computer-readable storage medium.

[0049] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An integrated energy storage system utilizing rails and carriages for climbing slopes, characterized by: include, Trapezoidal combination track module: It consists of two parallel rails, which are connected and fixed on the left and right sides by cross bolts to maintain the spacing, forming a narrow and long trapezoidal combination track. The cross bolts serve as racks for engaging with the drive wheels. Energy storage car module: The wheels of the car are composed of a combination of bilaterally symmetrical parallel traditional railway wheels and a drive wheel with giant teeth on the outer periphery equipped with a hub motor. The drive wheel is located in the middle of the trapezoidal combined track and meshes with the cross bolt to form a gear and rack relationship; Power supply module: Power supply lines from wind and photovoltaic power are respectively arranged on both sides of the trapezoidal combined track, and the power supply lines maintain sliding contact with the power input end of the energy storage compartment through zigzag elastic brackets; Back-transmission grid module: A power transmission line for the back-transmission grid is set on the other side of the two sides of the trapezoidal combined track opposite to the power supply module, and the transmission line maintains sliding contact with the power generation output end of the energy storage car through a zigzag elastic bracket; Control module: used to control the climbing and descending process of the energy storage car, including starting, accelerating, decelerating, stopping, and adjusting the power generation intensity. The control module performs real-time control based on the speed and position of the energy storage car and the needs of the power grid; Energy storage management module: used to monitor and manage the energy conversion efficiency and energy storage status of the energy storage compartment to ensure efficient and stable operation of the energy storage process.

2. The integrated energy storage system utilizing rails and carriages for climbing slopes as claimed in claim 1, characterized in that: In the energy storage compartment module, the wheel diameter of the traditional wheel is smaller than the wheel diameter of the drive wheel, the axis position of the traditional wheel is lower than the axis position of the drive wheel, the traditional wheel is a passive wheel when climbing, and is equipped with a brake when going downhill. The wheel diameter ratio r of the traditional wheel to the drive wheel satisfies the following formula Among them, d 传统车轮 is the wheel diameter of the traditional wheel, d 驱动轮 is the wheel diameter of the driving wheel. At the same time, the wheelbase L between the traditional wheel and the driving wheel satisfies the following formula: L = d 驱动轮 ×sin(θ)+d 传统车轮 ×cin(θ), where θ is the track slope angle.

3. The integrated energy storage system utilizing rails and carriages for climbing slopes as claimed in claim 2, characterized in that: The control module uses the following algorithm formula to adjust the power generation strength, P 发电 =k×(v 目标 -v 实际 ), where P 发电 represents the generated power, k is the proportional coefficient, v 目标 is the target speed, v 实际 is the actual vehicle speed, and the proportional coefficient k ranges from 0.1 to 0.

5. At the same time, the control module also uses the following formula to predict the vehicle speed: Among them, F 牵引 is the traction force, F 阻力 is the running resistance, m is the mass of the energy storage compartment, and Δt is the time step.

4. The integrated energy storage system utilizing rails and carriages for climbing slopes as claimed in claim 3, characterized in that: In the energy storage compartment module, the energy conversion efficiency of the energy storage compartment during climbing and descending is calculated using the following algorithm: Where η represents the energy conversion efficiency, E 输出 is the electrical energy output by the generator when going downhill, E 输入 The control module monitors the energy conversion efficiency of the energy storage compartment in real time according to the formula to ensure that it is not lower than the set threshold, and sets the threshold η 阈值 is 75%, when η<η 阈值 When the load is too high, the control module will trigger an alarm and adjust the operating parameters of the energy storage compartment. The dynamic adjustment of energy conversion efficiency adopts the following formula: 调整 =η+α×(E 输入 -E 输出 ), where α is the adjustment coefficient, and its value range is 0.01 to 0.

05.

5. The integrated energy storage system utilizing rails and carriages for climbing slopes as claimed in claim 1, characterized in that: The system also includes an off-grid energy storage module. The off-grid energy storage module is combined with wind and solar power to establish an off-grid power station, realizing the combination of energy storage and cold storage. The cold storage includes refrigerated cold storage and frozen cold storage. The energy distribution of the off-grid energy storage module is calculated using the following formula: Among them, E 分配 represents the energy allocated to the cold storage, E 总 is the total energy of the off-grid power station, n is the number of cold storages, P 冷库 is the power requirement of the cold storage, P 总 is the total power of the off-grid power station.

6. The integrated energy storage system utilizing rails and carriages for climbing slopes as claimed in claim 5, characterized in that: In the energy storage compartment module, the operating range of the energy storage compartment is controlled within 8 kilometers, and the speed is controlled within 10 kilometers per hour. The control module performs real-time monitoring and adjustment according to the position and speed of the energy storage compartment. The control module uses the following formula to monitor the position and speed: d = v × t, Wherein d is the running distance of the energy storage vehicle, v is the vehicle speed, and t is the time.

7. The integrated energy storage system utilizing rails and carriages for climbing slopes as claimed in claim 1, characterized in that: The energy storage management module includes an energy monitoring unit and a state feedback unit. The energy monitoring unit is used to monitor the energy input and output of the energy storage compartment in real time. The state feedback unit is used to feed back the monitored energy state to the control module. The energy monitoring unit uses the following formula for energy monitoring E 总 =E 输入 +E 输出 , ΔE=E 输出 -E 输入 , where E 总 is the total energy of the energy storage compartment, E 输入 is the energy input, E 输出 is the energy output, and ΔE is the energy change.

8. The integrated energy storage system utilizing rails and carriages for climbing slopes as claimed in claim 5, characterized in that: The power supply module and the backhaul grid module both use elastic contact technology to ensure stable contact between the energy storage compartment and the power supply line and transmission line during operation. The contact pressure P of the elastic contact technology satisfies the following formula: P = k' × F, where P is the contact pressure, k' is the elastic coefficient, and F is the force. The elastic coefficient k' ranges from 0.05 to 0.

15. The energy storage compartment module also includes a backup power supply unit. The power of the backup power supply unit satisfies the following formula: Among them, P 备用 is the power of the power supply unit, E 备用 is the total energy of the backup power supply unit, t 备用 is the duration of the backup power supply unit, the total energy E of the backup power supply unit 备用 Not less than 20% of the energy required by the energy storage compartment during normal operation, for a duration of t 备用 Not less than 2 hours, the system also includes a remote monitoring module, the remote monitoring module is connected to the control module through wireless communication technology, and the data transmission rate R of the remote monitoring module satisfies the following formula: Where L is the amount of data transmitted, T is the transmission time, and the signal strength S of the remote monitoring module 信号 The following formula is used for evaluation: Among them, P 发射 is the transmit power, is the transmission distance, and G is the antenna gain.

9. The integrated energy storage system utilizing rails and carriages for climbing a slope as claimed in claim 8, characterized in that: The rail sleepers are made of wood instead of today's popular cement sleepers, which occupy a large amount of wood, promote forestry development, and fix carbon in disguise. Brick-concrete cement stones in construction waste are used to make paving gravel and place it under the sleepers. The cement gravel contains a large amount of calcium hydroxide, which will slowly absorb carbon dioxide in the air and become neutral calcium carbonate and stabilize. At the same time, the track processing cost is very low, and I-beams of various specifications can be used as tracks. The processing tools are all small and can be processed on site.

10. The integrated energy storage system utilizing rails and carriages for climbing slopes as claimed in claim 1, characterized in that: The energy storage compartment is provided with a ballast block to increase the overall mass of the compartment. It will accumulate more potential energy when going uphill and release more kinetic energy when going downhill, thereby increasing the overall power. The ballast three-dimensional cement block has two purposes: one is to act as a ballast, and the other is to act as a container for dirt and grime. It is used to store toxic waste containing heavy metals such as mercury, lead, cadmium, thallium, and dry battery solids. The cement is only its outer shell to ensure that the dirt inside cannot leak out.

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