CN-122001244-A - Energy tunnel power generation system based on flexible thermoelectric power generation film

CN122001244ACN 122001244 ACN122001244 ACN 122001244ACN-122001244-A

Abstract

The invention discloses an energy tunnel power generation system based on a flexible thermoelectric power generation film, which comprises a temperature difference capturing unit, a thermoelectric conversion unit, an electric energy processing unit, an electric energy storage unit, an electric energy transmission unit, an electric energy distribution unit, a routing input processing unit, an adaptive single iteration routing unit and an electric energy dynamic regulation unit, wherein the temperature difference capturing unit is used for obtaining cold energy and heat and forming a temperature gradient, the thermoelectric conversion unit is used for outputting direct-current electric energy under the action of the temperature gradient, the electric energy processing unit is used for executing maximum power point tracking and voltage stabilization to form stable direct-current electric energy, the electric energy storage unit is used for storing energy and forming energy storage buffer output, the electric energy transmission unit is used for respectively inputting the energy storage buffer output into a built-in cable and forming total electric energy, the electric energy distribution unit is used for providing distributed electric energy for electric equipment in a tunnel, the routing input processing unit is used for collecting data and forming a routing input sequence, the adaptive single iteration routing unit is used for forming final energy distribution weight, and the electric energy dynamic regulation unit is used for dynamically regulating the electric energy flow direction and the energy storage schedule. The method introduces a self-adaptive single-iteration routing algorithm to realize tunnel waste heat power generation and intelligent regulation and control, and has the advantage of high efficiency.

Inventors

MAI SHUAIXING
ZENG QINGHAN
HUANG YANKUN
WANG FEI
JI YONGMING

Assignees

常州莱晖节能科技有限公司

Dates

Publication Date: 20260508
Application Date: 20251231

Claims (10)

1. An energy tunnel power generation system based on flexible thermoelectric generation film, characterized by comprising: the temperature difference capturing unit is used for obtaining cold energy from surrounding rock and heat energy from tunnel air, and forming a temperature gradient for thermoelectric conversion on the flexible thermoelectric generation film; the thermoelectric conversion unit is used for outputting direct-current electric energy under the action of a temperature gradient; The electric energy processing unit is used for rectifying the direct current electric energy and executing maximum power point tracking voltage stabilization so as to form stable direct current electric energy; The electric energy storage unit is used for storing energy of the stable direct current electric energy and forming energy storage buffer output; the power transmission unit is used for respectively inputting energy storage buffer outputs corresponding to the shield tunnel segments into the built-in cables, and forming a parallel connection convergence relationship between the junction boxes between the tube rings to generate total power; The electric energy distribution unit is used for inputting the total electric energy through the main cable, and then processing the total electric energy to provide distributed electric energy for each electric equipment in the tunnel; the route input processing unit is used for collecting data of a plurality of shield tunnel segments and forming a route input sequence; the self-adaptive single-iteration routing unit is used for performing one-time attention calculation on the routing input sequence and forming final energy distribution weights; And the electric energy dynamic regulation and control unit dynamically regulates the flow direction of electric energy and the energy storage scheduling according to the final energy distribution weight and generates an electric energy dynamic regulation and control result.
2. The energy tunnel power generation system based on the flexible thermoelectric power generation film according to claim 1, wherein the units are realized by the following method: Acquiring temperature data of the flexible thermoelectric generation film in a tunnel, acquiring cold energy from surrounding rock through a heat dissipation structure, acquiring heat from tunnel air through a heat collection structure, and forming a temperature gradient; The temperature gradient is acted on a conductive layer, a metal film and a thermoelectric structure in the flexible thermoelectric power generation film, and direct-current electric energy is output based on the Seebeck effect; the direct current output by the thermoelectric structure is input into the rectifying structure for rectifying treatment, and the rectified electric energy is input into the voltage stabilizing structure with the maximum power point tracking function for voltage stabilizing treatment, so that stable direct current electric energy is output; Inputting output electric energy of the voltage stabilizing structure into the flexible energy storage structure, and forming energy storage buffer through the flexible energy storage structure; Inputting output electric energy from the flexible energy storage structures of the shield tunnel segments into respective built-in cables, and carrying out parallel connection and collection on the electric energy of the segments through junction boxes between the built-in cables and the tube rings to form a parallel connection and collection relationship; Inputting the electric energy collected in parallel into a main cable, inputting the electric energy output by the main cable into an electric energy distribution device, and distributing the input electric energy to electric equipment in a tunnel through a converging structure, a breaking protection structure, a surge protection structure and a shunt output structure in the electric energy distribution device; Constructing a route input sequence from a plurality of shield tunnel segment data, inputting the route input sequence into a self-adaptive single-iteration routing algorithm, and obtaining final energy distribution weight through one-time attention calculation of the self-adaptive single-iteration routing algorithm; and dynamically adjusting the flow direction of the electric energy and the energy storage scheduling according to the energy distribution weight to form an electric energy dynamic regulation result.
3. The flexible thermoelectric generation film-based energy tunnel power generation system of claim 2, wherein the formation of the temperature gradient comprises: the temperature of the tunnel space where the flexible thermoelectric generation film is located is collected, the temperature at one side close to surrounding rock is recorded as the temperature of a low-temperature end, and the temperature at one side close to tunnel air is recorded as the temperature of a high-temperature end; the heat dissipation structure and the surrounding rock form fixed heat conduction contact, so that the heat dissipation structure continuously acquires cold energy from the surrounding rock; The heat collection structure and tunnel air form fixed heat conduction contact, so that the heat collection structure continuously acquires heat from the tunnel air; and subtracting the temperature of the low temperature end from the temperature of the high temperature end to obtain a temperature gradient, and taking the temperature gradient as the working temperature difference of the flexible thermoelectric power generation film.
4. The flexible thermoelectric generation film-based energy tunnel power generation system according to claim 2, wherein the output of the direct current power comprises: Applying a temperature gradient to the conductive layer along the thickness direction of the flexible thermoelectric generation film, and forming a temperature difference between the high-temperature end position and the low-temperature end position; Transferring a temperature gradient from the conductive layer to the metal film to form a continuous temperature distribution between the high temperature end position and the low temperature end position; The thermoelectric structure is tightly attached to the conductive layer, and the thermoelectric structure receives the temperature gradient effect along the high-temperature end position and the low-temperature end position; under the action of the temperature gradient, potential difference is formed inside the thermoelectric structure, and the thermoelectric structure generates charge movement along the temperature gradient direction; The thermoelectric structure outputs direct-current electric energy in the charge moving process, and the direct-current electric energy is conducted along the direction of the conducting layer; the metal film is electrically connected with the conductive layer, and the metal film is used as a transmission cover layer of direct current electric energy to output the direct current electric energy.
5. The flexible thermoelectric generation film-based energy tunnel power generation system according to claim 2, wherein the output of the stabilized dc power comprises: Inputting the direct current electric energy output by the thermoelectric structure into an input end of the rectifying structure; The rectification structure is used for rectifying the received direct-current electric energy, and the electric energy output by the rectification structure is input into the input end of the voltage stabilizing structure with the maximum power point tracking function; The voltage stabilizing structure is used for regulating the voltage of the input electric energy, and the stable direct current electric energy is formed at the output end of the voltage stabilizing structure.
6. The flexible thermoelectric generation film-based energy tunnel power generation system of claim 2, wherein the energy storage buffer formation comprises: Introducing the stable direct current electric energy output by the voltage stabilizing structure into an input end of the flexible energy storage structure, and starting to receive the stable direct current electric energy by the flexible energy storage structure; Electrode materials in the flexible energy storage structure generate initial charge accumulation under the action of stable direct current electric energy, and initial energy storage energy appears in the flexible energy storage structure; The flexible energy storage structure stores charges in the process of continuously receiving stable direct current electric energy, and the energy storage energy in the flexible energy storage structure is gradually increased; the flexible energy storage structure enters an energy storage completion state when the energy storage energy reaches a set energy storage threshold value, and the flexible energy storage structure keeps the energy storage energy from leaking in the energy storage completion state; The flexible energy storage structure maintains the capability of outputting electric energy in an energy storage completion state and maintains a stable working state; The flexible energy storage structure can be used for carrying out adjustable pre-distribution on energy storage after the flexible energy storage structure has the condition of outputting electric energy, and the energy storage buffer is formed through an internal charge storage mechanism.
7. The flexible thermoelectric generation film based energy tunnel power generation system of claim 2 wherein the formation of the parallel pooling relationship comprises: respectively inputting the output electric energy of the flexible energy storage structure corresponding to each shield tunnel segment into the built-in cable corresponding to the flexible energy storage structure; Each built-in cable transmits the received output electric energy to the parallel input end of the corresponding junction box between the pipe rings along the longitudinal direction of the pipe piece; The built-in cables form a parallel connection relationship at the parallel input ends of the junction boxes among the pipe rings; The junction box between the pipe rings collects the electric energy input by a plurality of built-in cables in parallel; Electric energy output by each flexible energy storage structure enters the input end of the junction box between the pipe rings, and each output electric energy is connected in parallel at the input end to form a parallel connection convergence relation.
8. The flexible thermoelectric generation film based energy tunnel power generation system of claim 2 wherein said power distribution comprises: inputting the total electric energy output by the junction box between the pipe rings into the input end of a main cable, and starting the main cable to transmit the total electric energy; the main cable transmits total electric energy along the tunnel direction, and the total electric energy keeps a continuous transmission state in the main cable; Connecting the output end of the main cable to the input end of the electric energy distribution device, and receiving the total electric energy output by the main cable by the electric energy distribution device; The method comprises the steps that a converging structure in an electric energy distribution device converges input total electric energy, the total electric energy forms unified input in the converging structure, a circuit breaking protection structure in the electric energy distribution device controllably opens and closes the electric energy from the converging structure, and the circuit breaking protection structure forms a controlled electric energy path; the surge protection structure in the electric energy distribution device performs surge absorption on electric energy from the circuit breaking protection structure, and stable electric energy is formed after the surge protection structure; The stable electric energy input is split by a split output structure in the electric energy distribution device, and each path of output electric energy corresponds to different electric equipment in the tunnel; And each electric equipment in the tunnel receives the corresponding output electric energy respectively.
9. The flexible thermoelectric generation film based energy tunnel power generation system of claim 2 wherein the final energy distribution weights comprise: The method comprises the steps that power generation data, voltage data, current data and energy storage state data from a plurality of shield tunnel segments are arranged according to an acquisition sequence to form a route input sequence; carrying out correlation analysis on each data item in the route input sequence by using a self-adaptive single iteration route algorithm, wherein each data item forms a corresponding correlation value; The self-adaptive single-iteration routing algorithm performs one-time attention calculation on each correlation value, and each data item obtains an attention weight initial value; forming a normalized attention weight based on the attention weight initial value, the normalized attention weight forming a final attention weight of the one-time attention calculation; The self-adaptive single-iteration routing algorithm carries out single weight distribution on each data item in the routing input sequence according to the final attention weight, and each shield tunnel segment forms independent energy distribution weight; Forming final energy distribution weights by the energy distribution weights, wherein the final energy distribution weights correspond to the electric energy regulation and control requirements of all shield tunnel segments; the self-adaptive single-iteration routing algorithm directly outputs final energy distribution weights without repeated iteration after single calculation is completed.
10. The energy tunnel power generation system based on the flexible thermoelectric power generation film according to claim 2, wherein the generation of the dynamic power regulation result comprises: The self-adaptive single-iteration routing algorithm forms a routing result sequence according to the sequence of shield tunnel segments by the final energy distribution weight, and the routing result sequence is used as the energy distribution weight to be input into the electric energy flow direction regulation and control process; the available electric energy of each path of electric energy input path is calculated in the electric energy flow direction regulating and controlling process to form a corresponding electric energy flow direction value; the proportional relation is acted on the total electric energy to form electric energy flow direction values which are distributed one by one, and the formed electric energy flow direction values are respectively corresponding to energy distribution weights of all shield tunnel segments; The energy storage scheduling process calculates the outputtable electric quantity of the flexible energy storage structure in the current regulation and control period, and forms an energy storage scheduling proportion according to the energy distribution weight, wherein the energy storage scheduling proportion is used as a distribution basis of the output electric energy of the flexible energy storage structure; distributing the outputtable electric quantity of the flexible energy storage structure one by one according to an energy storage scheduling proportion, taking the distributed electric quantity as a formation basis of the energy storage output quantity of the flexible energy storage structure in the regulation and control period, and generating the energy storage output quantity of the regulation and control period according to the energy storage scheduling process; the electric energy flow direction regulating and controlling process and the energy storage scheduling process are synchronously executed in the same regulating and controlling period, and the electric energy flow direction value and the energy storage output quantity after synchronous execution jointly form a single electric energy dynamic regulating and controlling result; Merging the electric energy flow direction value and the energy storage output quantity one by one according to the sequence corresponding to the shield tunnel segments to form a result set, wherein the result set forms a single electric energy dynamic regulation result; The dynamic electric energy regulation result is kept in a readable state after being formed and is used as input reference data of the next regulation period so as to repeatedly execute the electric energy flow direction regulation process and the energy storage scheduling process in the next regulation period.

Description

Energy tunnel power generation system based on flexible thermoelectric power generation film Technical Field The invention relates to the technical field of tunnel energy conservation and power supply, in particular to an energy tunnel power generation system based on a flexible thermoelectric power generation film. Background In the existing tunnel environment, a long-term stable low-grade temperature difference exists between air and surrounding rock, but the traditional tunnel power supply mode still mainly depends on external power grid power supply or centralized energy facilities, and renewable waste heat resources in the tunnel cannot be effectively recovered. The existing thermoelectric generation technology is mostly applied to a planar structure or an outdoor environment, and is difficult to adapt to construction and operation conditions of high humidity, high pressure, complex stress and long-term sealing in a shield tunnel. Meanwhile, the existing flexible thermoelectric materials generally adopt a distributed structure, and integrated heat capturing, thermoelectric conversion, electric energy processing and energy storage functions are not realized, so that the whole power generation efficiency is limited, and the stability is insufficient. On the other hand, the existing tunnel energy supply network generally lacks an intelligent energy regulation mechanism, the generated energy of each segment fluctuates, the electric energy transmission path depends on a fixed line, and dynamic optimization distribution is difficult to carry out according to actual load demands. The existing regulation algorithm can be converged only by multiple iterations, and is not suitable for the energy supply scene with higher real-time requirements, such as a tunnel. Therefore, in the prior art, a flexible thermoelectric power generation system which can stably run in a shield tunnel for a long time, realize efficient recovery of waste heat and complete energy weight calculation by combining single iteration is not known. Therefore, how to provide an energy tunnel power generation system based on a flexible thermoelectric power generation film is a problem that needs to be solved by those skilled in the art. Disclosure of Invention The invention aims to provide an energy tunnel power generation system based on a flexible thermoelectric power generation film, which introduces a self-adaptive single-iteration routing algorithm to realize tunnel waste heat power generation and intelligent regulation and control and has the advantage of high efficiency. According to an embodiment of the invention, an energy tunnel power generation system based on a flexible thermoelectric power generation film comprises: the temperature difference capturing unit is used for obtaining cold energy from surrounding rock and heat energy from tunnel air, and forming a temperature gradient for thermoelectric conversion on the flexible thermoelectric generation film; the thermoelectric conversion unit is used for outputting direct-current electric energy under the action of a temperature gradient; The electric energy processing unit is used for rectifying the direct current electric energy and executing maximum power point tracking voltage stabilization so as to form stable direct current electric energy; The electric energy storage unit is used for storing energy of the stable direct current electric energy and forming energy storage buffer output; the power transmission unit is used for respectively inputting energy storage buffer outputs corresponding to the shield tunnel segments into the built-in cables, and forming a parallel connection convergence relationship between the junction boxes between the tube rings to generate total power; The electric energy distribution unit is used for inputting the total electric energy through the main cable, and then processing the total electric energy to provide distributed electric energy for each electric equipment in the tunnel; the route input processing unit is used for collecting data of a plurality of shield tunnel segments and forming a route input sequence; the self-adaptive single-iteration routing unit is used for performing one-time attention calculation on the routing input sequence and forming final energy distribution weights; And the electric energy dynamic regulation and control unit dynamically regulates the flow direction of electric energy and the energy storage scheduling according to the final energy distribution weight and generates an electric energy dynamic regulation and control result. Optionally, the units are realized by the following method: Acquiring temperature data of the flexible thermoelectric generation film in a tunnel, acquiring cold energy from surrounding rock through a heat dissipation structure, acquiring heat from tunnel air through a heat collection structure, and forming a temperature gradient; The temperature gradient is acted on a conductive layer, a metal