A large-scale gravity energy storage control system for bulk solid waste

Abstract

This invention discloses a large-scale gravity energy storage control system for bulk solid waste, comprising a high-level energy storage platform, a low-level energy storage platform, tracks, and a loading vehicle. The tracks include a low-level rail, an upward rail, a high-level rail, and a downward rail. The upward and downward rails are laid flat on the slopes of the high / low-level energy storage platforms, and the high / low-level energy storage platforms are connected to the corresponding high / low-level rails. A downhill power generation area is provided on the downward rail, forming a power generation and transportation line and a gravity energy storage line. Under the control of the main controller, the loading vehicle performs gravity energy storage during off-peak hours and power generation and transportation during peak hours. This invention utilizes bulk solid waste as a carrier for gravity energy storage. The loading vehicle transfers bulk solid waste from the high- and low-level bulk solid waste energy storage bins, achieving gravity potential energy storage and converting gravity potential energy into mechanical energy to drive the generator to rotate and generate electricity. This satisfies the needs of bulk solid waste storage and accumulation, utilizes solid waste materials as a gravity energy storage carrier, reduces the construction cost of gravity energy storage, and improves the utilization rate of solid waste.

Description

Technical Field

[0001] This invention relates to the field of energy storage technology, specifically to a large-scale gravity energy storage control system for bulk solid waste. Background Technology

[0002] The surge in the types and quantities of electrical equipment has led to a continuous increase in the peak-valley difference of the power grid, which not only exacerbates the difficulty of peak regulation but also poses a significant challenge to the grid's stability. Energy storage systems can store energy when there is an energy surplus in the grid and release it when the grid needs it. The millisecond-level dynamic power compensation capability of advanced energy storage systems can greatly improve the instability caused by the randomness, volatility, and intermittency of new energy power generation. In the context of the electricity market and the implementation of peak-valley pricing, energy storage systems can store the excess electricity generated after the power source participates in grid dispatch at a low price and integrate it into the grid when there is dispatch demand or when the price is high to participate in peak regulation, thereby maximizing the benefits of distributed generation.

[0003] Gravity energy storage, as a new type of long-term, large-capacity energy storage method, has advantages such as high safety, high efficiency, long lifespan, and short construction period. The basic process of energy storage is as follows: using surplus electricity to drive a motor to lift a heavy object, converting it into high-potential energy for storage; releasing the heavy object to generate electricity. Due to its large energy storage capacity, long output time, and low unit energy cost, it can accurately track grid dispatch instructions.

[0004] Bulk solid waste mainly includes gangue, fly ash, tailings, industrial by-product gypsum, smelting slag, construction waste, and crop straw. It is abundant and widespread, and has a significant environmental impact. Therefore, how to store and utilize these bulk materials has become our main core research and development direction. Summary of the Invention

[0005] To address the aforementioned problems, this invention proposes a large-scale gravity energy storage control system for bulk solid waste, comprising a central controller, a track, a loading vehicle traveling on the track, and high-level and low-level energy storage platforms for storing bulk solid waste. At least one set of high-level and low-level energy storage platforms is provided. A drive station for propelling the loading vehicle is installed on the track, and a slope is formed between the high-level and low-level energy storage platforms.

[0006] The high / low level energy storage platform includes a high / low level bulk solid waste energy storage bin, a high / low level receiving rail, and a high / low level annular tilting rail, respectively. The high / low level receiving rail is respectively set below the high / low level bulk solid waste energy storage bin, and the high / low level annular tilting rail is respectively set above the high / low level bulk solid waste energy storage bin.

[0007] The track includes a low-level track, an upward track, a high-level track, and a downward track. The upward and downward tracks are laid flat on the slope of the high / low-level energy storage platform. Multiple high-level energy storage platforms are connected in parallel to the high-level track, and multiple low-level energy storage platforms are connected in parallel to the low-level track.

[0008] A downhill power generation area is provided on the downhill rail, and the downhill power generation area is connected to the energy storage device.

[0009] From the high-level material receiving rail outlet end of one of the high-level energy storage platforms, the high-level rail, downhill rail, and low-level rail are connected in sequence to enter the low-level circular tilting rail and then connected to the low-level rail. The high-level material receiving rail inlet end is then connected via the uphill rail and high-level rail to form a power generation transportation line.

[0010] From the low-level receiving rail outlet end of one of the low-level energy storage platforms, the low-level rail, the upward rail, and the high-level rail are connected in sequence to the high-level circular tilting rail and then connected to the high-level rail. After passing through the downward rail and the low-level rail, it is connected to the low-level receiving rail inlet end to form a gravity energy storage transport line.

[0011] The main controller sets the loader to have two modes: power generation and gravity energy storage. During off-peak hours, the loader is in gravity energy storage mode. Under the control of the main controller, it enters the gravity energy storage transport line to transport solid waste materials from the low-level bulk solid waste energy storage bin to the high-level bulk solid waste energy storage bin for gravity energy storage. During peak hours, the main controller controls the downhill power generation zone to start working. The main controller controls the loader to enter the power generation transport line to transport the gravity energy storage materials from the high-level bulk solid waste energy storage bin to the downhill power generation zone, converting the gravitational potential energy into mechanical energy to generate electricity and store it in the energy storage device to complete the power generation.

[0012] Furthermore, each low-level energy storage platform is equipped with a low-level ultrasonic detector for detecting the amount of solid waste stored in its low-level bulk solid waste energy storage compartment.

[0013] When the loader is in power generation mode, when the loader transports the solid waste material from the high-level bulk solid waste energy storage bin to the low-level bulk solid waste energy storage bin via the downhill power generation area, the corresponding low-level ultrasonic detector detects that the current low-level bulk solid waste energy storage bin is full, and the main controller controls the loader to enter the next empty low-level bulk solid waste energy storage bin on the power generation transportation line for unloading.

[0014] When the loader is in gravity energy storage mode, when the loader transports solid waste materials from the low-level bulk solid waste energy storage bin to the high-level bulk solid waste energy storage bin, if the corresponding low-level ultrasonic detector detects that the current inventory of the low-level bulk solid waste energy storage bin is lower than the preset value, the main controller controls the loader to enter the next fully loaded energy storage bin on the gravity energy storage transportation line for transportation.

[0015] Furthermore, each high-level energy storage platform is equipped with a high-level ultrasonic detector for detecting the amount of solid waste stored in its high-level bulk solid waste storage compartment.

[0016] When the loader is in power generation mode, when the loader transports the solid waste material from the high-level bulk solid waste energy storage bin to the lower energy storage bin via the downhill power generation area, if the corresponding high-level ultrasonic detector detects that the current stock of the high-level bulk solid waste energy storage bin is lower than the preset value, the main controller controls the loader to enter the next fully loaded high-level bulk solid waste energy storage bin on the power generation transportation line for transportation.

[0017] When the loader is in gravity energy storage mode, when the loader transports the solid waste material from the low-level bulk solid waste energy storage bin to the high-level bulk solid waste energy storage bin, the high-level ultrasonic detector detects that the current high-level bulk solid waste energy storage bin is full, and the main controller controls the loader to enter the next empty high-level bulk solid waste energy storage bin on the gravity energy storage transportation line for unloading.

[0018] Furthermore, the loading vehicle includes a train IMU, train encoder wheels, front RFID, rear RFID, a train controller, and a train wireless module. The train IMU, train encoder wheels, and front RFID are all located at the front of the loading vehicle, while the rear RFID is located at the rear of the vehicle. The train IMU, train encoder wheels, front RFID, rear RFID, and train wireless module are all wirelessly connected to the train controller. The train controller communicates with the main controller via the train wireless module. The train IMU is used to obtain acceleration and calculate the loading train speed. The train encoder wheels are used to calculate the train position. The rear RFID is used to mark the drive stations that have been passed. Once the loading train has completed its journey, the corresponding drive station stops operating.

[0019] Furthermore, the drive station includes a drive mechanical structure, an RFID sensor, a drive station controller, and a drive station wireless module. The RFID sensor is electrically connected to the drive station controller, and the drive station controller is wirelessly connected to the main controller through the drive station wireless module. The drive station controller controls the rotation of the drive mechanical structure. The RFID sensor is wirelessly connected to the front RFID and rear RFID of the vehicle. When the front RFID of the loading vehicle is scanned by the RFID sensor of the drive station, the RFID sensor of the drive station sends a signal back to the main controller through the drive station controller. After the main controller obtains the signal from the RFID sensor of the drive station and acquires the train speed and position information, it controls the speed of the drive station through the drive station controller.

[0020] Furthermore, both the high-level and low-level receiving rails are provided with N rails. The entrance ends of the high-level / low-level receiving rails are connected to multi-rail intelligent turnouts. The multi-rail intelligent turnouts include a multi-rail turnout controller, a multi-rail switch, and an RFID sensor II. The multi-rail turnout controller is wirelessly connected to the central control center, and the multi-rail switch and RFID sensor II are electrically connected to the multi-rail turnout controller.

[0021] Furthermore, the multi-track intelligent turnout control method is as follows:

[0022] Each high-level / low-level receiving rail is numbered sequentially from 1 to N according to its position. Any high-level / low-level receiving rail with an arbitrary number is selected as the initial rail. When the loading vehicle enters the power generation and transportation mode, the main controller sends the initial rail number back to the multi-rail turnout controller. The multi-rail turnout controller then controls the corresponding multi-rail switch to connect the initial rail of the high-level receiving rail. When the loading vehicle enters the high-level receiving rail of the initial rail, RFID sensor two scans the RFID at the rear of the vehicle, and RFID sensor two records the information of the rear of the loading vehicle passing through. The signal is sent to the multi-rail turnout controller. After receiving the RFID sensor, the multi-rail turnout controller controls the multi-rail switch to close the initial track and connects the multi-rail switch to the next high-level receiving track. This connection is repeated until the work is completed. When the main controller controls the loading train to enter the gravity energy storage transportation mode, the main controller feeds back the initial track number to the multi-rail turnout controller on the low-level receiving track. The operation control method of the multi-rail turnout controller on the low-level receiving track is the same as that of the multi-rail turnout controller on the high-level receiving track.

[0023] Furthermore, the number of high-level receiving rails / low-level receiving rails is N. Ignoring rail friction loss, when the first vehicle has just finished receiving material and is about to leave, and the (N+1)th vehicle enters the same high-level receiving rail / lower-level receiving rail as the first vehicle, no collision occurs. The initial departure distance between loading vehicles is X. When the loading vehicle enters the high-level receiving rail / low-level receiving rail, it moves at a constant speed under the control of the drive station, i.e., the vehicle speed on the transport rail is V. 运 The material receiving speed of the loading train on the receiving track is: V 接 If the length of the loaded train is L, then when the head of the first car enters the high-level receiving rail / low-level receiving rail, the distance between it and the (N+1)th car is S, where S = N*X + (N-1)*L.

[0024] The time it takes for the loader to enter the high-level / low-level receiving rail to receive material is t0. From the time the first loader enters the high-level / low-level receiving rail to receive material until the receiving is completed, the receiving speed is V. 接 That is, the distance traveled by the first vehicle on the upper / lower receiving rail within time t0 is: V 接 *t0,

[0025] The (N+1)th car travels at a speed of V on the track. 运 The distance traveled on the track during time t0 is V. 运 *t0;

[0026] After the first loader finishes receiving material at the high / low receiving rail, the distance S' between it and the (N+1)th loader when it prepares to receive material is equal to V. 运 *t0-V 接*t0, to reduce the queuing waiting time between the first vehicle and the (N + 1)-th vehicle, S≥S’, therefore,

[0027] N*X+(N - 1)*L≥V 运 *t0 - V 接 *t0

[0028] Finally, it is obtained that the initial departure interval of the loading vehicle should satisfy:

[0029] X≥(V 运 - V 接 )*t0 / N-(1 - 1 / N)*L.

[0030] Furthermore, a vehicle distance adjustment section with a length D is provided at the high / low rail at the front end of the multi-rail turnout controller at the high / low receiving rail entrance, D = 1.5X. An RFID sensor three is provided at the initial end of the vehicle distance adjustment section.

[0031] When the loading vehicle travels to the initial end of the vehicle distance adjustment section, RFID sensor three scans the RFID on the head of the loading vehicle. After the master controller obtains the information of the current loading vehicle head scanned by RFID sensor three, it controls the train controllers of the current loading vehicle and the front loading vehicle to feedback the information of the train coding wheels of the two vehicles, obtains the position information of the current loading vehicle and the front loading vehicle, and thus obtains the distance X between the two vehicles. 实际 ,

[0032] When X 实际 ≥X, the loading vehicle travels at a normal speed of V 运 where V 运 is the normal running speed of the loading vehicle on the track;

[0033] When X 实际 <X, the master controller controls the drive station of the vehicle distance adjustment section to decelerate the current loading vehicle to V min and then increase the speed back to V 运 within the time t when the front loading vehicle drives out of the vehicle distance adjustment section, so as to reach X 实际 = X. The specific distance between the rear of the front loading vehicle and the end of the vehicle distance adjustment section is: D - X 实际 , and the traveling speed is V 运 . Then the time for the front loading vehicle to drive out of the vehicle distance adjustment section

[0034] After the current loading vehicle decelerates to V min and then accelerates back to V 运 , the increased distance X 增 between the front and rear vehicles is: That is, X 增 = X - X 实际 . Therefore, it is obtained that: And Substituting it in, we get:

[0035] but:

[0036] Furthermore, the downhill power generation area includes several power generation units arranged on the downhill track. Each power generation unit includes a housing embedded in the track without interfering with the loading train. At least one set of power generation components is installed inside the housing. A support base plate is provided below each power generation component. The support base plate is slidably connected to the bottom surface of the housing via a slide rail. The end face of the support base plate is connected to the output end of a hydraulic cylinder. The cylinder body of the hydraulic cylinder is connected to the bottom surface of the housing. Each power generation component includes a generator, a speed increaser, and a power generation wheel. The power generation wheel drives the speed increaser to rotate via a shaft. The output end of the speed increaser is connected to the generator. The generator is connected to an energy storage device via an inverter. When the power generation unit is in working condition, the hydraulic cylinder drives the support base plate to slide, thereby causing the power generation wheel of the power generation component to press against the drive plate of the loading train.

[0037] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0038] 1. This invention utilizes the characteristics of large quantities of solid waste, which are widely distributed and require stockpiling and processing, as a carrier for gravity energy storage. The large quantities of solid waste in high and low-level solid waste energy storage warehouses are transferred by loading vehicles to achieve gravity potential energy storage and the conversion of gravity potential energy into mechanical energy to drive generators to generate electricity. This not only satisfies the stockpiling of large quantities of solid waste, but also directly utilizes solid waste materials as a carrier for gravity energy storage, reducing the construction cost of gravity energy storage and improving the utilization rate of solid waste.

[0039] 2. This invention utilizes bulk solid waste as a gravity energy storage carrier. Compared with existing gravity energy storage systems that use gravity blocks for gravity energy storage, it has the advantages of low cost and large capacity. Multiple high-level and low-level energy storage platforms can be set up to meet the storage needs of bulk solid waste and enable large-scale gravity energy storage power generation. It can meet the needs of gravity energy storage transportation during off-peak electricity demand periods and power generation and grid connection during peak electricity demand periods, effectively alleviating the pressure on electricity demand during peak periods. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of the overall structure of the gravity energy storage system in this embodiment;

[0041] Figure 2 This is a schematic diagram of the power generation unit in this embodiment;

[0042] Figure 3 This is a schematic diagram of the solid waste unloading structure of the high-level bulk solid waste energy storage silo in this embodiment;

[0043] Figure 4This is a schematic diagram of the two-rail intelligent turnout structure in this embodiment;

[0044] Figure 5 This is a schematic diagram of the three-rail intelligent turnout structure in this embodiment;

[0045] Figure 6 This is a schematic diagram illustrating the calculation of the distance S between the first car head and the N+1th car when the car head enters the high / low receiving rail, without considering friction loss in this embodiment. Detailed Implementation

[0046] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0047] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0048] The present invention will be further described below with reference to the accompanying drawings:

[0049] In this embodiment, as shown in the appendix Figure 1 A large-scale gravity energy storage control system for bulk solid waste includes a main controller, an elevated energy storage platform 1, a low-level energy storage platform 2, a track, and a loading vehicle 3 that travels on the track. A drive station 4 that propels the loading vehicle is installed on the track. The elevated energy storage platform 1 and the low-level energy storage platform 2 form a slope.

[0050] In this embodiment, the high-level energy storage platform 1 and the low-level energy storage platform 2 are used to store bulk solid waste. Multiple platforms can be used and connected in parallel to the high-level rail and the low-level rail, respectively.

[0051] Its high / low level energy storage platform 1 / 2 respectively includes high / low level bulk solid waste energy storage bin 1-1 / 2-1, high / low level receiving rail 1-2 / 2-2, and high / low level annular tilting rail 1-3 / 2-3. The high / low level receiving rail 1-2 / 2-2 is respectively set below the high / low level bulk solid waste energy storage bin 1-1 / 2-1, and the high / low level annular tilting rail 1-3 / 2-3 is respectively set above the high / low level bulk solid waste energy storage bin 1-1 / 2-1.

[0052] The track includes a low-level rail 5-1, an upward rail 5-2, a high-level rail 5-3, and a downward rail 5-4. The upward rail 5-2 and the downward rail 5-4 are laid flat on the slope of half of the high / low-level energy storage platform.

[0053] In this embodiment, multiple high-level energy storage platforms 1 and low-level energy storage platforms 2 can be set up and connected in parallel to the corresponding high-level rail 5-3 and low-level rail 5-1, thereby forming multiple energy storage chambers at both the high and low levels to meet the needs of bulk solid waste storage and large-scale gravity energy storage power generation.

[0054] The aforementioned tracks form a gravity energy storage transportation line, a power generation transportation line, and a gravity energy storage and power generation transportation mode for the loading vehicle.

[0055] Gravity energy storage transport line: The outlet end of the low-level receiving rail 2-2 of the low-level energy storage platform 2 is sequentially connected to the low-level rail 5-1, the upward rail 5-2, and the high-level rail 5-3, then enters the high-level annular tilting rail 1-3 and connects to the high-level rail 5-3. Finally, it passes through the downward rail 5-4 and the low-level rail 5-1 to reach the inlet end of the low-level receiving rail 2-2.

[0056] In gravity energy storage mode, during off-peak electricity periods, the main controller controls the loader 3 to enter gravity energy storage mode. The loader 3 prepares to enter the gravity energy storage transport line in sequence. The loader 3 enters the low-level receiving rail 2-2 of one of the low-level energy storage platforms 2. The automatic discharge port 6 of the low-level bulk solid waste energy storage bin 2-1 puts the mineral material in the bin into the loader 3's compartment. After the loader 3 completes loading, it enters the low-level rail 5-1 in sequence, and then enters the high-level circular tilting rail 1-3 through the low-level rail 5-1, the upward rail 5-2, and the high-level rail 5-3 to dump the solid waste. The solid waste enters the high-level bulk solid waste energy storage bin 1-1 (solid waste minerals are transported from the low-level bulk solid waste energy storage bin 2-1 to the high-level bulk solid waste energy storage bin 1-1. During the off-peak electricity period, when the electricity price is low, gravitational potential energy is stored so that the stored gravitational potential energy can be converted into electrical energy for power generation during the subsequent peak electricity period). Then, it passes through the high-level rail 5-3 and enters the down-level rail 5-4 and the low-level rail 5-1 under no load, and enters the low-level receiving rail 2-2 to enter the next cycle. In this transportation mode, the downhill power generation zone 7 of the down-level rail 5-4 does not work.

[0057] Power generation and transportation line: The outlet end of the high-level receiving rail 1-2 of the high-level energy storage platform 1 is connected in sequence to the high-level rail 5-3, the down rail 5-4, and the low-level rail 5-1. After entering the low-level annular tilting rail 2-3, it is connected to the low-level rail 5-1, and then connected to the inlet end of the high-level receiving rail 2-2 via the up rail 5-2 and the high-level rail 5-3.

[0058] In the power generation and transportation mode, the main controller controls the loader 3 to enter the power generation and transportation mode. The loader 3 enters the high-level receiving rail 1-2 of a high-level energy storage platform 1. The high-level bulk solid waste energy storage bin 1-1 unloads the solid waste mineral material into the truck bed, and then drives out, sequentially entering the downhill rail 5-4 to enter the downhill power generation area 7. The downhill power generation area 7 starts working when the main controller controls the loader 3 to enter the power generation and transportation mode. Due to its own weight, the loader 3 slides down the downhill rail 5-4 from top to bottom. The downhill power generation area 7 is controlled by the main controller. The hydraulic cylinder 8-3 drives the support base plate 8-2 to slide, so that the power generation wheel 8-6 ​​of the power generation component is pressed against the drive plate of the loader 1. The drive plate of 1 drives the generator wheel 8-6 ​​to rotate. The generator wheel 8-6 ​​drives the generator 8-4 to rotate through the speed increaser 8-5 to generate electricity. The generator 8-4 is connected to the storage device, thereby converting mechanical energy into electrical energy for storage. A vehicle speed control station 9 is also set up in the downhill power generation area 7. The vehicle speed control station 9 can control the vehicle speed to remain within a certain range. After power generation is completed, the loading vehicle 3 enters the low-level rail 5-1, and then enters the low-level circular tilting rail 2-3 to unload the solid waste mineral material into the low-level bulk solid waste energy storage bin 2-1. After that, the empty train enters the high-level receiving rail 1-3 through the low-level rail 5-1, the upward rail 5-2 and the high-level rail 5-3 to enter the next cycle.

[0059] As attached Figure 2 As shown, the specific downhill power generation area 7 includes several power generation units 8 arranged on the downhill track. Each power generation unit includes a housing 8-1, which is embedded in the track and does not interfere with the loading vehicle 3. At least one set of power generation components is installed inside the housing 8-1. A support base plate 8-2 is installed below the power generation components. The support base plate 8-2 is slidably connected to the bottom surface of the housing 8-1 via a slide rail. The end face of the support base plate 8-2 is connected to the output end of the hydraulic cylinder 8-3. The cylinder body of the hydraulic cylinder 8-3 is connected to the bottom surface of the housing 8-1. The power generation components include a generator 8-4, a speed increaser 8-5, and a power generation wheel 8-6. The power generation wheel 8-6 ​​drives the speed increaser 8-5 to rotate via a rotating shaft. The output end of the speed increaser 8-5 is connected to the generator 8-4. The generator 8-4 is connected to an energy storage device. When the power generation unit is in working condition, the hydraulic cylinder 8-3 drives the support base plate 8-2 to slide, thereby driving the power generation wheel 8-6 ​​of the power generation components to press against the drive plate of the loading train.

[0060] In this embodiment, each low-level bulk solid waste energy storage compartment of the low-level energy storage platform 2 is equipped with a low-level ultrasonic detector for detecting the amount of solid waste stored.

[0061] When the loader 3 is in power generation mode, when the loader 3 transports the solid waste material from the high-level bulk solid waste energy storage bin 1-1 to the low-level bulk solid waste energy storage bin 2-1 via the downhill power generation area 7, after the corresponding low-level ultrasonic detector detects that the current low-level bulk solid waste energy storage bin 2-1 is full, the main controller controls the loader 3 to enter the next empty low-level bulk solid waste energy storage bin 2-1 on the power generation transportation line for unloading.

[0062] When the loading vehicle 3 is in gravity energy storage mode, when the loading vehicle 3 transports the solid waste material from the low-level bulk solid waste energy storage bin 2-1 to the high-level bulk solid waste energy storage bin 1-1, if the corresponding low-level ultrasonic detector detects that the current inventory of the low-level bulk solid waste energy storage bin 2-1 is lower than the preset value, the main controller controls the loading vehicle 3 to enter the next fully loaded energy storage bin on the gravity energy storage transportation line for transportation.

[0063] Each high-level energy storage platform 1 is equipped with a high-level ultrasonic detector for detecting the amount of solid waste stored in its high-level bulk solid waste energy storage bin 1-1.

[0064] When the loading vehicle 3 is in power generation mode, when the loading vehicle 3 transports the solid waste material from the high-level bulk solid waste energy storage bin 2-1 to the low-level bulk solid waste energy storage bin 2-1 via the downhill power generation area 7, if the corresponding high-level ultrasonic detector detects that the current inventory of the high-level bulk solid waste energy storage bin 1-1 is lower than the preset value, the main controller controls the loading vehicle 3 to enter the next fully loaded high-level bulk solid waste energy storage bin 1-1 on the power generation transportation line for transportation.

[0065] When the loader 3 is in gravity energy storage mode, when the loader 3 transports the solid waste material from the low-level bulk solid waste energy storage bin 2-1 to the high-level bulk solid waste energy storage bin 1-1, after the high-level ultrasonic detector detects that the current high-level bulk solid waste energy storage bin 1-1 is full, the main controller controls the loader 3 to enter the next empty high-level bulk solid waste energy storage bin 1-1 on the gravity energy storage transportation line for unloading.

[0066] The main controller sets the loading vehicle 3 to have two modes: power generation and energy storage. During off-peak hours, the loading vehicle 3 is in energy storage mode. Under the control of the main controller, it enters the gravity energy storage transport line to transport the solid waste material from the low-level bulk solid waste energy storage bin 2-1 to the high-level bulk solid waste energy storage bin 1-1 for gravity energy storage. During peak hours, the main controller controls the downhill power generation zone 7 to start working. The main controller controls the loading vehicle 3 to enter the power generation transport line to transport the gravity energy storage material from the high-level bulk solid waste energy storage bin 1-1 through the downhill power generation zone 7. The gravity potential energy is converted into mechanical energy to generate electricity and store it in the energy storage device to complete the power generation.

[0067] In this embodiment, the characteristics of large-scale solid waste, which requires extensive storage and treatment, are utilized as a carrier for gravity energy storage. A loading vehicle 3 transfers the large-scale solid waste from the high / low-level solid waste energy storage bins 1-1 / 2-1, achieving gravity potential energy storage and the conversion of gravity potential energy into mechanical energy to drive a generator for power generation and storage. This satisfies the need for large-scale solid waste storage and directly utilizes solid waste materials as a gravity energy storage carrier, reducing the construction cost of gravity energy storage and improving the utilization rate of solid waste. Furthermore, multiple high-level energy storage platforms 1 and low-level energy storage platforms 2 are set up, which not only meets the needs of large-scale solid waste storage but also solves the large-scale gravity energy storage requirements.

[0068] In this embodiment, the automatic discharge port 6 of the high / low-level bulk solid waste energy storage bins 1-1 / 2-1 has the same structure, as detailed in the attached figure. Figure 3 As shown, the automatic discharge port 6 is equipped with a valve. When the loader 3 enters the loading station, a contact sensor is installed at the loading station. After the contact sensor detects that the train has arrived, it sends a feedback to the main controller. The main controller controls the valve to open automatically to discharge the material. When the loader 3 is full, the valve closes automatically.

[0069] In this embodiment, the loading vehicle 3 includes a train IMU, train encoder wheels, front RFID, rear RFID, a train controller, and a train wireless module. The train IMU, train encoder wheels, and front RFID are all located at the front of the loading vehicle, while the rear RFID is located at the rear of the vehicle. The train IMU, train encoder wheels, front RFID, rear RFID, and train wireless module are all wirelessly connected to the train controller. The train controller communicates with the main controller via the train wireless module. The train IMU is used to obtain acceleration and calculate the loading train speed. The train encoder wheels are used to calculate the train position. The rear RFID is used to mark the drive stations that have been passed. Once the loading train has completed its journey, the corresponding drive station stops operating.

[0070] The drive station 4 includes a drive mechanical structure, an RFID sensor, a drive station controller, and a drive station wireless module. The RFID sensor is electrically connected to the drive station controller, which is wirelessly connected to the main controller via the drive station wireless module. The drive station controller controls the rotation of the drive mechanical structure. The RFID sensor is wirelessly connected to the front RFID and rear RFID of the vehicle. When the front RFID of the loading vehicle is scanned by the RFID sensor of the drive station, the RFID sensor sends a signal back to the main controller via the drive station controller. After the main controller receives the signal from the RFID sensor and obtains the train speed and position information, it controls the speed of the drive station via the drive station controller. The intelligent control method of the drive station in this embodiment is the same as the method in the applicant's patent 202310032662.6, and will not be described again here.

[0071] In this embodiment, the high / low level annular tilting rail 1-3 / 2-3 and the high / low level receiving rail 1-2 / 2-2 of the high / low level energy storage platform 1 / 2 are connected in parallel to the high / low level rail 5-3 / 5-1. A section of high / low level rail 5-3 / 5-1 is connected to both the front and rear ends of the high / low level receiving rail 1-2 / 2-2. The front and rear ends of the high / low level annular tilting rail 1-3 / 2-3 are correspondingly connected to the front and rear ends of the high / low level rail 5-3 / 5-1 of the high / low level receiving rail 1-2 / 2-2. Each set of high / low level energy storage platform 1 / 2 is connected to the corresponding high / low level rail 5-3 / 5-1. Intelligent turnouts 9 are installed at the 3 / 5-1 connection points. Each intelligent turnout 9 includes a turnout controller 9-1 and a switch 9-2. The turnout controller 9-1 is electrically connected to the main controller. When the loader 3 is in the power generation and transportation mode, the intelligent turnout 9 of the high-level energy storage platform 1 is connected to the high-level receiving rail 1-2, and the intelligent turnout 9 of the low-level energy storage platform 2 is connected to the low-level circular tilting rail 2-3. When the loader 3 is in the gravity energy storage mode, the intelligent turnout 9 of the high-level energy storage platform 1 is connected to the high-level circular tilting rail 1-3, and the intelligent turnout 9 of the low-level energy storage platform 2 is connected to the low-level receiving rail 2-2.

[0072] In this embodiment, the intelligent turnout 9 adopts the most conventional design. Its switch 9-2 includes a switch rail 9-3 and a translation drive component 9-4. The turnout controller 9-1 controls the translation drive component 9-4 to translate the switch rail 9-3, thereby switching the track path. When the switch 9-2 includes one set of switch rails 9-3 and one set of translation drive components 9-4, it is suitable for switching between two rails, as shown in the attached figure. Figure 4 As shown.

[0073] In this embodiment, both the high-level receiving rail 1-2 and the low-level receiving rail 2-2 are provided with N rails. The entrance ends of the high-level / low-level receiving rails 1-2 / 2-2 are connected to multi-rail intelligent turnouts. The multi-rail intelligent turnouts include a multi-rail turnout controller, a multi-rail switch, and an RFID sensor II. The multi-rail turnout controller is wirelessly connected to the central control center, and the multi-rail switch and the RFID sensor II are electrically connected to the multi-rail turnout controller.

[0074] Multi-track intelligent turnouts, i.e., those with two or more tracks, as shown in the attached diagram. Figure 5 As shown, taking a three-rail intelligent turnout as an example, the multi-rail switch includes two sets of switch rails 9-3 and two sets of translation drive components 9-4. One set of switch rails 9-3 translates to switch between the two tracks. The two sets of switch rails 9-3 are arranged front and back, as shown in the figure. One set of switch rails 9-3 enables the switching and connection between the lower track and the middle track, and the other set of switch rails 9-3 enables the switching and connection between the upper track and the middle track. This multi-rail intelligent turnout is a conventional design scheme in railway transportation.

[0075] The control method for multi-track intelligent turnouts is as follows:

[0076] Each high-level / low-level receiving rail is numbered sequentially from 1 to N according to its position. Any high-level / low-level receiving rail with an arbitrary number is selected as the initial rail. When the loading vehicle enters the power generation and transportation mode, the central control center sends the initial rail number back to the multi-rail turnout controller. The multi-rail turnout controller then controls the corresponding multi-rail switch to connect the initial rail of the high-level receiving rail. When the loading vehicle enters the high-level receiving rail of the initial rail, RFID sensor two scans the RFID at the rear of the vehicle. RFID sensor two then records the rear of the loading vehicle passing through the signal... The information is sent to the multi-rail turnout controller. After receiving the RFID sensor, the multi-rail turnout controller controls the multi-rail switch to close the initial track and connects the multi-rail switch to the next high-level receiving track. This connection is repeated until the work is completed. When the main controller controls the loading train to enter the gravity energy storage transportation mode, the main controller feeds back the initial track number to the multi-rail turnout controller on the low-level receiving track. The operation control method of the multi-rail turnout controller on the low-level receiving track is the same as that of the multi-rail turnout controller on the high-level receiving track.

[0077] In this embodiment, when the main controller is dispatching vehicles, in order to avoid problems such as waiting between loading vehicles during operation, an initial dispatching distance X is set. The initial dispatching distance X is related to the number of high-level receiving rails / low-level receiving rails. Before dispatching, the main controller obtains the number of high-level receiving rails / low-level receiving rails, and controls the initial dispatching distance X by using the number of rails.

[0078] The number of high-level / low-level receiving rails is N. Ignoring rail friction loss, when the first vehicle has just finished receiving material and is about to leave, and the (N+1)th vehicle enters the same high-level / lower-level receiving rail as the first vehicle, no collision occurs. The initial departure distance between loading vehicles is X. When the loading vehicle enters the high-level / lower-level receiving rail, it moves at a constant speed under the control of the drive station, i.e., the vehicle speed on the transport rail is V. 运 The material receiving speed of the loading train on the receiving track is: V 接 If the length of the loaded train is L, then when the head of the first car enters the high-level receiving rail / low-level receiving rail, the distance between it and the (N+1)th car is S, where S = N*X + (N-1)*L.

[0079] The time it takes for the loader to enter the high-level / low-level receiving rail to receive material is t0. From the time the first loader enters the high-level / low-level receiving rail to receive material until the receiving is completed, the receiving speed is V. 接 That is, the distance traveled by the first vehicle on the upper / lower receiving rail within time t0 is: V 接 *t0,

[0080] The (N+1)th car travels at a speed of V on the track. 运 The distance traveled on the track during time t0 is V. 运*t0;

[0081] After the first loading vehicle finishes receiving materials on the high-level receiving track / low-level receiving track and before the (N + 1)-th vehicle is ready to enter for receiving materials, the reduced distance S' between them is S' = V 运 *t0 - V 接 *t0. In order to reduce the queuing waiting time between the first vehicle and the (N + 1)-th vehicle, S ≥ S', so

[0082] N * X+(N - 1) * L ≥ V 运 *t0 - V 接 *t0

[0083] Finally, it is obtained that the initial departure interval of the loading vehicle should satisfy:

[0084] X ≥ (V 运 - V 接 ) * t0 / N-(1 - 1 / N) * L.

[0085] Furthermore, when the loading vehicle travels to the initial end of the vehicle distance adjustment section, RFID sensor three scans the RFID of the loading vehicle's head. After the total controller obtains the information of the current loading vehicle's head scanned by RFID sensor three, it controls the train controllers of the current loading vehicle and the front loading vehicle to feedback the information of the two trains' coding wheels, obtains the position information of the current loading vehicle and the front loading vehicle, and thus obtains the distance X between the two vehicles 实际 ,

[0086] When X 实际 ≥ X, the loading vehicle travels normally at V 运 where V 运 is the normal running speed of the loading vehicle on the track;

[0087] When X 实际 < X, the total controller controls the driving station in the vehicle distance adjustment section to decelerate the current loading vehicle to V min and then increase the speed back to V 运 within the time t when the front loading vehicle drives out of the vehicle distance adjustment section, so as to reach X 实际 = X. The specific distance between the rear of the front loading vehicle and the end of the vehicle distance adjustment section is: D - X 实际 , and the traveling speed is V 运 . Then the time for the front loading vehicle to drive out of the vehicle distance adjustment section

[0088] When the current loading vehicle decelerates to V min and then accelerates back to V 运 , the increased distance X 增 between the front and rear vehicles is: That is, X 增 = X - X 实际 , so it is obtained that: and Substituting it in, we get:

[0089] but:

[0090] In this embodiment, to avoid vehicle waiting during loading and unloading, each loading vehicle maintains a distance of X during initial departure. X is set based on the number of high / low receiving rails in operation, satisfying X ≥ (V 运 -V 接 The formula )*t0 / N-(1-1 / N)*L ensures that when the previous vehicle has just finished receiving material and is about to leave on the same high / low track, the N+1th vehicle will enter and start receiving material without a collision. To avoid friction loss during operation that could affect the spacing between loading vehicles, a vehicle spacing adjustment section is set in front of the high / low receiving track. This means that the vehicle spacing is corrected before each material receiving operation. By adjusting and controlling the speed of the loading vehicle as it enters the vehicle spacing adjustment section, it is ensured that the vehicle spacing is at least greater than or equal to X when the vehicle enters the high / low receiving track, thus avoiding waiting time for the loading vehicle. Since the entire track uses a drive station for operation, the friction loss is low. The vehicle spacing adjustment section is a fine-tuning section for vehicle spacing.

[0091] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A large-scale gravity energy storage control system for bulk solid waste, comprising a main controller, a track, a loading vehicle traveling on the track, and a high-level energy storage platform and a low-level energy storage platform for storing bulk solid waste, characterized in that, At least one set of high-level energy storage platform and low-level energy storage platform are provided. A drive station for moving the loading vehicle is provided on the track. A slope is formed between the high-level energy storage platform and the low-level energy storage platform. The high / low level energy storage platform includes a high / low level bulk solid waste energy storage bin, a high / low level receiving rail, and a high / low level annular tilting rail, respectively. The high / low level receiving rail is respectively set below the high / low level bulk solid waste energy storage bin, and the high / low level annular tilting rail is respectively set above the high / low level bulk solid waste energy storage bin. The track includes a low-level track, an upward track, a high-level track, and a downward track. The upward and downward tracks are laid flat on the slope of the high / low-level energy storage platform. Multiple high-level energy storage platforms are connected in parallel to the high-level track, and multiple low-level energy storage platforms are connected in parallel to the low-level track. A downhill power generation area is provided on the downhill rail, and the downhill power generation area is connected to the energy storage device. From the high-level material receiving rail outlet end of one of the high-level energy storage platforms, the high-level rail, the down rail, and the low-level rail are connected in sequence to enter the low-level circular tilting rail and then connected to the low-level rail. The high-level material receiving rail inlet end is then connected via the up rail and the high-level rail to form a power generation transportation line. From the low-level receiving rail outlet end of one of the low-level energy storage platforms, the low-level rail, the upward rail, and the high-level rail are connected in sequence to the high-level circular tilting rail and then connected to the high-level rail. After passing through the downward rail and the low-level rail, it is connected to the low-level receiving rail inlet end to form a gravity energy storage transport line. The main controller sets the loader to have two modes: power generation and gravity energy storage. During off-peak hours, the loader is in gravity energy storage mode. Under the control of the main controller, it enters the gravity energy storage transport line to transport solid waste materials from the low-level bulk solid waste energy storage bin to the high-level bulk solid waste energy storage bin for gravity energy storage. During peak hours, the main controller controls the downhill power generation zone to start working. The main controller controls the loader to enter the power generation transport line to transport the gravity energy storage materials from the high-level bulk solid waste energy storage bin to the downhill power generation zone, converting the gravitational potential energy into mechanical energy to generate electricity and store it in the energy storage device to complete the power generation.

2. The large-scale gravity energy storage control system for bulk solid waste as described in claim 1, characterized in that, Each low-level energy storage platform is equipped with a low-level ultrasonic detector for detecting the amount of solid waste stored in its low-level bulk solid waste energy storage compartment. When the loader is in power generation mode, when the loader transports the solid waste material from the high-level bulk solid waste energy storage bin to the low-level bulk solid waste energy storage bin via the downhill power generation area, the corresponding low-level ultrasonic detector detects that the current low-level bulk solid waste energy storage bin is full, and the main controller controls the loader to enter the next empty low-level bulk solid waste energy storage bin on the power generation transportation line for unloading. When the loader is in gravity energy storage mode, when the loader transports solid waste materials from the low-level bulk solid waste energy storage bin to the high-level bulk solid waste energy storage bin, if the corresponding low-level ultrasonic detector detects that the current inventory of the low-level bulk solid waste energy storage bin is lower than the preset value, the main controller controls the loader to enter the next fully loaded energy storage bin on the gravity energy storage transportation line for transportation.

3. A large-scale gravity energy storage control system for bulk solid waste as described in claim 2, characterized in that, Each high-level energy storage platform is equipped with a high-level ultrasonic detector for detecting the amount of solid waste stored in its high-level bulk solid waste storage compartment. When the loader is in power generation mode, when the loader transports the solid waste material from the high-level bulk solid waste energy storage bin to the lower energy storage bin via the downhill power generation area, if the corresponding high-level ultrasonic detector detects that the current stock of the high-level bulk solid waste energy storage bin is lower than the preset value, the main controller controls the loader to enter the next fully loaded high-level bulk solid waste energy storage bin on the power generation transportation line for transportation. When the loader is in gravity energy storage mode, when the loader transports the solid waste material from the low-level bulk solid waste energy storage bin to the high-level bulk solid waste energy storage bin, the high-level ultrasonic detector detects that the current high-level bulk solid waste energy storage bin is full, and the main controller controls the loader to enter the next empty high-level bulk solid waste energy storage bin on the gravity energy storage transportation line for unloading.

4. A large-scale gravity energy storage control system for bulk solid waste as described in claim 1, characterized in that, The loading vehicle includes a train IMU, train encoder wheels, front RFID, rear RFID, a train controller, and a train wireless module. The train IMU, train encoder wheels, and front RFID are all located at the front of the loading vehicle, while the rear RFID is located at the rear of the vehicle. The train IMU, train encoder wheels, front RFID, rear RFID, and train wireless module are all wirelessly connected to the train controller. The train controller communicates with the main controller via the train wireless module. The train IMU is used to obtain acceleration and calculate the loading train speed. The train encoder wheels are used to calculate the train position. The rear RFID is used to mark the drive stations that have been passed. Once the loading train has completed its journey, the corresponding drive station stops operating.

5. A large-scale gravity energy storage control system for bulk solid waste as described in claim 4, characterized in that, The drive station includes a drive mechanical structure, an RFID sensor, a drive station controller, and a drive station wireless module. The RFID sensor is electrically connected to the drive station controller, which is wirelessly connected to the main controller via the drive station wireless module. The drive station controller controls the rotation of the drive mechanical structure. The RFID sensor is wirelessly connected to the front and rear RFID of the vehicle. When the front RFID of the loaded vehicle is scanned by the RFID sensor of the drive station, the RFID sensor sends a signal back to the main controller via the drive station controller. After receiving the signal from the RFID sensor and acquiring the train speed and position information, the main controller controls the speed of the drive station via the drive station controller.

6. A large-scale gravity energy storage control system for bulk solid waste as described in claim 5, characterized in that, Both the high-level and low-level receiving rails are provided with N rails. The entrance ends of the high-level / low-level receiving rails are connected to multi-rail intelligent turnouts. The multi-rail intelligent turnouts include a multi-rail turnout controller, a multi-rail switch, and an RFID sensor II. The multi-rail turnout controller is wirelessly connected to the central control center, and the multi-rail switch and RFID sensor II are electrically connected to the multi-rail turnout controller.

7. A large-scale gravity energy storage control system for bulk solid waste as described in claim 6, characterized in that, The multi-track intelligent turnout control method is as follows: Each high-level / low-level receiving rail is numbered sequentially from 1 to N according to its position. Any high-level / low-level receiving rail with an arbitrary number is selected as the initial rail. When the loading vehicle enters the power generation and transportation mode, the main controller sends the initial rail number back to the multi-rail turnout controller. The multi-rail turnout controller then controls the corresponding multi-rail switch to connect the initial rail of the high-level receiving rail. When the loading vehicle enters the high-level receiving rail of the initial rail, RFID sensor two scans the RFID at the rear of the vehicle, and RFID sensor two records the information of the rear of the loading vehicle passing through. The signal is sent to the multi-rail turnout controller. After receiving the RFID sensor, the multi-rail turnout controller controls the multi-rail switch to close the initial track and connects the multi-rail switch to the next high-level receiving track. This connection is repeated until the work is completed. When the main controller controls the loading train to enter the gravity energy storage transportation mode, the main controller feeds back the initial track number to the multi-rail turnout controller on the low-level receiving track. The operation control method of the multi-rail turnout controller on the low-level receiving track is the same as that of the multi-rail turnout controller on the high-level receiving track.

8. A large-scale gravity energy storage control system for bulk solid waste as described in claim 7, characterized in that, The number of high-position receiving rails / low-position receiving rails is: N Ignoring track friction losses, when the first car has just finished receiving materials and is about to leave, the second... N +1 When a vehicle enters the same upper / lower receiving rail as the first vehicle for loading, no collision occurs, and the initial departure interval between loader vehicles is [missing information]. X When the loader enters the high-level receiving rail / low-level receiving rail, it moves at a constant speed under the control of the drive station, that is, the vehicle speed on the transport rail is... The material receiving speed of the loading train on the receiving track is: The length of the loading train is: L When the first car's front end enters the high-position receiving rail / low-position receiving rail, it will be in contact with the first... N+1 The distance between the cars is S , , The loading time for the loader to enter the high-level receiving rail / low-level receiving rail for receiving materials is: When the first loader enters the high-position receiving rail / low-position receiving rail to receive material, the receiving speed is [missing information]. That is, the first car in The distance traveled on the upper / lower receiving rail within the specified time is: , The (N+1)th car travels at a speed of . ,exist The distance traveled on the track within the time period is ; After the first loader finishes receiving material at the high / low receiving rail, it will connect with the... N+1 The reduced distance between the two when the vehicle is about to enter the receiving area S’ , In order to reduce the number of the first car and the first N+1 Waiting time between cars S≥S' ,therefore, ， Finally, the initial departure spacing of the loading vehicle should meet the following requirements: 。 9. A large-scale gravity energy storage control system for bulk solid waste as described in claim 7, characterized in that, A track spacing adjustment section is also installed at the high / low rail of the multi-rail turnout controller at the high / low receiving rail inlet, with a length... D , The initial end of the vehicle spacing adjustment section is equipped with an RFID sensor. When the loading vehicle reaches the initial end of the vehicle spacing adjustment section, the RFID sensor three scans the RFID on the loading vehicle's front. After the main controller receives the information from the RFID sensor three scanning the current loading vehicle's front, it controls the train controllers of the current loading vehicle and the loading vehicle ahead to feed back the train code wheel information of the two vehicles, thereby obtaining the position information of the current loading vehicle and the loading vehicle ahead, and thus determining the distance between the two vehicles. , when At that time, the loader maintained Proceeding normally This refers to the normal operating speed of the loading vehicle on the track; when At that time, the main controller controls the drive station of the vehicle spacing adjustment section, and the timing is determined when the preceding loader vehicle leaves the vehicle spacing adjustment section. t Inside, slow down the current loading vehicle to Then increase the speed back ,achieve The distance between the rear of the loader vehicle and the end of the distance adjustment section is: The driving speed is The time it takes for the preceding loader to leave the distance adjustment section. ; The current loading vehicle slows down to Accelerate back Afterwards, the increased distance between the front and rear vehicles : ,Right now Therefore, we get: ,and Substituting it into the equation, we get: , but: 。 10. A large-scale gravity energy storage control system for bulk solid waste as described in any one of claims 1-9, characterized in that, The downhill power generation area includes several power generation units arranged on the downhill track. Each power generation unit includes a housing embedded in the track without interfering with the loading train. At least one set of power generation components is installed inside the housing. A support base plate is provided below each power generation component. The support base plate is slidably connected to the bottom surface of the housing via a slide rail. The end face of the support base plate is connected to the output end of a hydraulic cylinder. The cylinder body of the hydraulic cylinder is connected to the bottom surface of the housing. Each power generation component includes a generator, a speed increaser, and a power generation wheel. The power generation wheel drives the speed increaser to rotate via a shaft. The output end of the speed increaser is connected to the generator. The generator is connected to an energy storage device via an inverter. When the power generation unit is in operation, the hydraulic cylinder drives the support base plate to slide, thereby causing the power generation wheel of the power generation component to press against the drive plate of the loading train.

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