Control method and device of heat storage system, storage medium and electronic equipment

Abstract

The invention relates to a control method and device of a heat storage system, a storage medium and electronic equipment. The method comprises the steps that the heat storage system is divided into an evaporation section and an overheating section for segmented control, the evaporation section is a process stage in which water is heated, evaporated and converted into high-temperature water vapor by an evaporator, and the overheating section is a process stage in which the high-temperature water vapor is heated and converted into saturated high-temperature water vapor by a superheater; and a fuzzy control module is adopted in the evaporation section and the overheating section to accurately control the flow and the temperature of the water vapor. According to the embodiment of the invention, the heat storage system is divided into the evaporation section and the overheating section, the steam flow and temperature are decoupled, the flow (gas-liquid ratio) of saturated steam is controlled in the heating section, the temperature of saturated high-temperature steam is controlled in the overheating section, and the control precision and response speed of the steam flow and temperature are improved through a fuzzy PID algorithm; the problems that a traditional heat storage control system is large in inertia, lag in control and not high in precision are solved.

Description

Technical Field

[0001] The present disclosure relates to the field of thermal control technology, and in particular, to a control method, device, storage medium and electronic equipment for a thermal storage system. Background Art

[0002] Existing heat storage systems usually use a PID controller connected to a temperature sensor and a regulating valve to detect whether the real-time temperature of the system outlet steam reaches the main steam temperature setting value. If the superheater outlet steam temperature does not reach the main steam temperature setting value, the opening of the regulating valve is adjusted according to the temperature difference to make the outlet temperature reach the expected value.

[0003] However, this method of controlling the heat by collecting the temperature of the water vapor at the superheater outlet, feeding the temperature value back to the PID controller, and the output acts on the reduction valve to adjust the opening of the pressure reducing valve so that the outlet superheated water vapor reaches the expected value. The temperature and flow at the outlet of the heat storage system affect each other and cannot be decoupled, resulting in weak anti-interference ability of the system, and prone to overshoot or control lag due to long adjustment time, which affects the control accuracy. Summary of the invention

[0004] To solve the above problems, the present disclosure provides a control method, device, storage medium and electronic equipment for a heat storage system, which divides the heat storage system into two parts, an evaporation section and a superheating section, decouples the steam flow and temperature, controls the flow (gas-liquid ratio) of saturated water vapor in the heating section, and controls the temperature of saturated high-temperature water vapor in the superheating section. By using a fuzzy PID algorithm, the control accuracy and response speed of the steam flow and temperature are improved, and the problems of large inertia, control lag and low accuracy of traditional heat storage control systems are optimized.

[0005] In order to achieve the above object, according to a first aspect of an embodiment of the present disclosure, a control method for a heat storage system is provided, the method comprising:

[0006] The heat storage system is divided into an evaporation section and a superheating section for segmented control, wherein the evaporation section is a process stage in which water is heated by an evaporator and evaporated to be converted into high-temperature water vapor, and the superheating section is a process stage in which the high-temperature water vapor is heated by a superheater and converted into saturated high-temperature water vapor;

[0007] Fuzzy control modules are respectively used in the evaporation section and the superheating section to accurately control the flow rate and temperature of the water vapor.

[0008] Optionally, the evaporation section comprises: a first heat storage device, an evaporator, a first fuzzy control module and a first fan connected in series;

[0009] The first heat storage device is used to provide a heat source for the evaporator;

[0010] The evaporator is used to connect to a water source and convert the water source into high-temperature water vapor;

[0011] The first fuzzy control module is used to control the rotation speed of the first fan to control the gas-liquid ratio of the high-temperature water vapor to a given gas-liquid ratio;

[0012] The first fan is used to control the flow rate of the heat transfer medium heated by the first heat storage device according to the output of the first fuzzy control module to adjust the gas-liquid ratio of the high-temperature water vapor at the outlet of the evaporator.

[0013] Optionally, the overheating section comprises: a second heat storage device, a superheater, a second fuzzy control module and a second fan connected in series with each other;

[0014] The second heat storage device is used to provide a heat source for the superheater;

[0015] The superheater is used to convert the high-temperature steam into saturated high-temperature steam;

[0016] The second fuzzy control module is used to control the rotation speed of the second fan to control the temperature of the saturated high-temperature water vapor at a given temperature;

[0017] The second fan is used to control the flow rate of the heat transfer medium heated by the second heat storage device according to the output of the second fuzzy control module to adjust the temperature of the saturated high-temperature water vapor at the outlet of the superheater.

[0018] Optionally, the fuzzy control modules are respectively used in the evaporation section and the superheating section to accurately control the flow rate and temperature of the water vapor, including:

[0019] Performing fuzzy control on the flow rate of the high-temperature water vapor in the evaporation section to accurately control the gas-liquid ratio of the high-temperature water vapor at the outlet of the evaporator;

[0020] The temperature of the high-temperature steam is fuzzily controlled in the superheating section to accurately control the temperature of the saturated high-temperature steam at the superheater outlet.

[0021] Optionally, the fuzzy control module includes: an adder, a differential module, a fuzzy reasoning module, a parameter correction module and a PID controller;

[0022] The adder is used to output the error between the control target value and the measured value of the controlled object;

[0023] The differential module is used to output the rate of change of the error;

[0024] The fuzzy reasoning module is used to output a first membership function according to the error and the rate of change of the error;

[0025] The parameter correction module is used to perform fuzzy reasoning operation according to the first membership function and preset fuzzy reasoning rules, and output a second membership function and a first PID control parameter;

[0026] The PID controller is used to output a second PID control parameter according to the second membership function and the first PID control parameter.

[0027] Optionally, the fuzzy reasoning module uses trigonometric functions as membership functions of input and output variables.

[0028] Optionally, the heat-conducting medium includes nitrogen.

[0029] According to a second aspect of an embodiment of the present disclosure, a control device for a heat storage system is provided, the control device comprising:

[0030] A segmentation module is used to divide the heat storage system into an evaporation section and a superheating section for segmented control, wherein the evaporation section is a process stage in which water is heated by an evaporator and evaporated to be converted into high-temperature water vapor, and the superheating section is a process stage in which the high-temperature water vapor is heated by a superheater and converted into saturated high-temperature water vapor;

[0031] The control module is used to accurately control the flow rate and temperature of the water vapor in the evaporation section and the superheating section respectively by using fuzzy control modules.

[0032] According to a third aspect of an embodiment of the present disclosure, there is provided a non-temporary computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, the steps of any one of the methods described in the first aspect are implemented.

[0033] According to a fourth aspect of an embodiment of the present disclosure, there is provided an electronic device, including:

[0034] a memory having a computer program stored thereon;

[0035] A processor is used to execute the computer program in the memory to implement the steps of any one of the methods in the first aspect.

[0036] In summary, the disclosed embodiment provides a control method for a heat storage system, the method comprising: dividing the heat storage system into an evaporation section and a superheating section for segmented control, the evaporation section is a process stage in which water is heated by an evaporator and evaporated to be converted into high-temperature water vapor, and the superheating section is a process stage in which the high-temperature water vapor is heated by a superheater and converted into saturated high-temperature water vapor; and using fuzzy control modules in the evaporation section and the superheating section to accurately control the flow rate and temperature of the water vapor. The disclosed embodiment divides the heat storage system into two parts, the evaporation section and the superheating section, decouples the steam flow rate and temperature, controls the flow rate (gas-liquid ratio) of saturated water vapor in the heating section, and controls the temperature of saturated high-temperature water vapor in the superheating section. Through the fuzzy PID algorithm, the control accuracy and response speed of the steam flow rate and temperature are improved, and the problems of large inertia, control lag, and low accuracy of the traditional heat storage control system are optimized.

[0037] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0039] Figure 1 It is a flow chart of a control method of a heat storage system according to an exemplary embodiment.

[0040] Figure 2 is a schematic diagram showing an evaporation section and a superheating section according to an exemplary embodiment.

[0041] Figure 3 It is a flow chart of a control method of a heat storage system according to an exemplary embodiment.

[0042] Figure 4 is a schematic diagram of a fuzzy control module according to an exemplary embodiment.

[0043] Figure 5 is a schematic diagram of a first membership function according to an exemplary embodiment.

[0044] Figure 6 is a second PID control parameter k shown according to an exemplary embodiment p , k i , k d Schematic diagram of .

[0045] Figure 7 The figure is a schematic diagram showing a comparison of steam flow rate changes according to an exemplary embodiment.

[0046] Figure 8 The figure is a schematic diagram showing a comparison of steam temperature changes according to an exemplary embodiment.

[0047] Fig. 9 is a block diagram of a control device for a heat storage system according to an exemplary embodiment.

[0048] Fig.10 It is a block diagram of an electronic device according to an exemplary embodiment.

[0049] Fig.11 It is a block diagram of an electronic device according to an exemplary embodiment. DETAILED DESCRIPTION

[0050] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0051] It should be understood that the term "including" and its variations used herein are open inclusions, i.e., "including but not limited to". The term "based on" means "based at least in part on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the following description.

[0052] It should be noted that the concepts of "first", "second", etc. mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units. The modifications of "one" and "multiple" mentioned in the present disclosure are illustrative and not restrictive. Those skilled in the art should understand that unless otherwise clearly indicated in the context, they should be understood as "one or more". In the description of the present disclosure, unless otherwise specified, "multiple" refers to two or more than two, and other quantifiers are similar; "at least one item", "one item or multiple items" or similar expressions refer to any combination of these items, including any combination of single items or plural items.

[0053] Although operations or steps are described in a specific order in the drawings in the embodiments of the present disclosure, it should not be understood that it is required to perform these operations or steps in the specific order shown or in a serial order, or to perform all the operations or steps shown to obtain the desired results. In the embodiments of the present disclosure, these operations or steps can be performed in series; these operations or steps can also be performed in parallel; or some of these operations or steps can be performed.

[0054] The names of the messages or information exchanged between multiple devices in the embodiments of the present disclosure are only for illustrative purposes and are not used to limit the scope of these messages or information. It is understandable that before using the technical solutions disclosed in the embodiments of the present disclosure, the types, scope of use, usage scenarios, etc. of the personal information involved in the present disclosure should be informed to the user in an appropriate manner in accordance with relevant laws and regulations and the user's authorization should be obtained. The present disclosure is described below in conjunction with specific embodiments.

[0055] Figure 1 FIG. 1 is a flow chart of a control method for a heat storage system according to an exemplary embodiment. Figure 1 As shown, the embodiment of the present disclosure provides a control method for a heat storage system, and the method may include the following steps:

[0056] In step S110, the heat storage system is divided into an evaporation section and a superheating section for segmented control. The evaporation section is a process stage in which water is heated by an evaporator to evaporate and convert into high-temperature water vapor, and the superheating section is a process stage in which the high-temperature water vapor is heated by a superheater to convert into saturated high-temperature water vapor.

[0057] In this step, the heat storage system is divided into an evaporation section and a superheating section for segmented control. The evaporation section is a process stage in which water is heated by the evaporator to evaporate and convert into high-temperature water vapor, and the superheating section is a process stage in which high-temperature water vapor is heated by the superheater to convert into saturated high-temperature water vapor. Exemplarily, a first fuzzy control module can be used in the evaporation section to control the flow rate (gas-liquid ratio) of the high-temperature water vapor output by the evaporation section, and a second fuzzy control module can be used in the superheating section to control the temperature of the saturated high-temperature water vapor output by the superheating section, so that the flow control and temperature control of the steam can be decoupled, thereby enhancing the system's anti-interference ability, control accuracy and rapid response ability.

[0058] In step S120, fuzzy control modules are respectively used in the evaporation section and the superheating section to accurately control the flow rate and temperature of the water vapor.

[0059] In this step, the fuzzy control module is used in the evaporation section and the superheating section to accurately control the flow rate and temperature of the water vapor. For example, the flow rate of the high-temperature water vapor can be fuzzy controlled in the evaporation section to accurately control the flow rate (gas-liquid ratio) of the high-temperature water vapor at the outlet of the evaporator. The temperature of the high-temperature water vapor is fuzzy controlled in the superheating section to accurately control the temperature of the saturated high-temperature water vapor at the outlet of the superheater. In this way, through the control means of fuzzy control and flow and temperature decoupling, the anti-interference ability, control accuracy and rapid response ability of the system can be improved.

[0060] In summary, the disclosed embodiment provides a control method for a heat storage system, the method comprising: dividing the heat storage system into an evaporation section and a superheating section for segmented control, the evaporation section is a process stage in which water is heated by an evaporator and evaporated to be converted into high-temperature water vapor, and the superheating section is a process stage in which the high-temperature water vapor is heated by a superheater and converted into saturated high-temperature water vapor; and using fuzzy control modules in the evaporation section and the superheating section to accurately control the flow rate and temperature of the water vapor. The disclosed embodiment divides the heat storage system into two parts, the evaporation section and the superheating section, decouples the steam flow rate and temperature, controls the flow rate (gas-liquid ratio) of saturated water vapor in the heating section, and controls the temperature of saturated high-temperature water vapor in the superheating section. Through the fuzzy PID algorithm, the control accuracy and response speed of the steam flow rate and temperature are improved, and the problems of large inertia, control lag, and low accuracy of the traditional heat storage control system are optimized.

[0061] Figure 2 FIG. 1 is a schematic diagram showing an evaporation section and a superheating section according to an exemplary embodiment. Figure 2 As shown, the evaporation section may include: a first heat storage device 10, an evaporator 20, a first fuzzy control module 30 and a first fan 40 connected in series. The first heat storage device 10 is used to provide a heat source for the evaporator 20. The evaporator 20 is used to connect a water source and convert the water source into high-temperature water vapor.

[0062] The first fuzzy control module 30 is used to control the rotation speed of the first fan 40 to control the gas-liquid ratio of the high-temperature water vapor at a given gas-liquid ratio. The first fan 40 is used to control the flow rate of the heat transfer medium heated by the first heat storage device 10 according to the output of the first fuzzy control module 30 to adjust the gas-liquid ratio of the high-temperature water vapor at the outlet of the evaporator 20.

[0063] In some embodiments, the thermally conductive medium may include nitrogen.

[0064] In some embodiments, the superheating section may include: a second heat storage device 60, a superheater 70, a second fuzzy control module 80 and a second fan 90 connected in series. The second heat storage device 60 is used to provide a heat source for the superheater 70. The superheater 70 is used to convert high-temperature water vapor into saturated high-temperature water vapor.

[0065] The second fuzzy control module 80 is used to control the rotation speed of the second fan 90 to control the temperature of the saturated high-temperature water vapor at a given temperature. The second fan 90 is used to control the flow rate of the heat transfer medium heated by the second heat storage device 60 according to the output of the second fuzzy control module 80 to adjust the temperature of the saturated high-temperature water vapor at the outlet of the superheater 70.

[0066] In some embodiments, the thermally conductive medium may include nitrogen.

[0067] Figure 3FIG. 1 is a flow chart of a control method for a heat storage system according to an exemplary embodiment. Figure 3 As shown, the evaporation section and the superheating section respectively use fuzzy control modules to accurately control the flow rate and temperature of the water vapor, which may include the following steps:

[0068] In step S210, fuzzy control is performed on the flow rate of the high-temperature water vapor in the evaporation section to accurately control the gas-liquid ratio of the high-temperature water vapor at the outlet of the evaporator.

[0069] In this step, the flow rate of high-temperature water vapor is fuzzy controlled in the evaporation section to accurately control the gas-liquid ratio of the high-temperature water vapor at the outlet of the evaporator 20. In this way, by separately controlling the flow rate of high-temperature water vapor, it can be decoupled from the temperature control of the steam to improve the control accuracy.

[0070] In step S220, fuzzy control is performed on the temperature of the high-temperature steam in the superheating section to accurately control the temperature of the saturated high-temperature steam at the superheater outlet.

[0071] In this step, the temperature of the high-temperature steam is fuzzy controlled in the superheating section to accurately control the temperature of the saturated high-temperature steam at the outlet of the superheater 70. In this way, by separately controlling the temperature of the saturated high-temperature steam, it can be decoupled from the steam flow control to improve the control accuracy.

[0072] Figure 4 FIG. 1 is a schematic diagram of a fuzzy control module according to an exemplary embodiment. Figure 4 As shown, the fuzzy control module includes: an adder A, a differential module D, a fuzzy reasoning module M, a parameter correction module X and a PID controller K. The adder A is used to output the error e(t) between the control target value r(t) and the measured value y(t) of the control object.

[0073] The differential module D is used to output the rate of change of the error e c (t). The fuzzy inference module M is used to calculate the error e(t) and the error change rate e c (t), output the first membership function μ F (u).

[0074] In some embodiments, the fuzzy reasoning module M uses trigonometric functions as membership functions of input and output variables.

[0075] Exemplarily, the first membership function μ F (u) can be obtained by the following formula:

[0076]

[0077] Among them, the function domain is determined by u, parameters a and c correspond to the two endpoints of the base of the triangle membership function, and parameter b corresponds to the vertex of the triangle membership function.

[0078] Figure 5 is a schematic diagram of a first membership function according to an exemplary embodiment. The triangular membership function of the error e can be seen in the figure on the left, and the error change rate e c The triangular membership function of can be seen in the figure on the right.

[0079] The parameter correction module X is used to modify the first membership function μ F (u) and the preset fuzzy inference rules to perform fuzzy inference operation and output the second membership function μ 1 (|e|,|e c |)~μ 1 (|e|,|e c |) and the first PID control parameter k pi , k ii , k di . Exemplarily, the second membership function μ 1 (|e|,|e c |)~μ 1 (|e|,|e c |), can be obtained by the following formula:

[0080]

[0081] Among them, μ L (|e|), μ M (|e|) and μ S (|e|) are the maximum, median and minimum values ​​of the membership function of error e, respectively, μ L (|e c |),μ M (|e c |) and μ S (|e c |) are the error change rates e c The maximum, median, and minimum values ​​of the membership function.

[0082] The fuzzy control module converts the error value e and the change in the error value e c As input, kp, ki, kd as output, define fuzzy variables e, e c The domain of discourse. e,e c={NB,NM,NS,ZO,PS,PM,PB}, where NB,NM,NS,Z0,PS,PM,PB represent the seven states of "negative large", "negative medium", "negative small", "zero", "positive small", "positive medium", and "positive large". c {-5, 5} are quantized into 7 levels, and 49 fuzzy rules are established. For details, please refer to Table 1.

[0083] Table 1 Fuzzy rules table

[0084] k pi

[0085]

[0086] k ii

[0087]

[0088] k di

[0089]

[0090]

[0091] The first PID control parameter k pi , k ii , k di It can be obtained by the following formula:

[0092]

[0093] Among them, k′ pi , k′ ii , k′ di are the first PID control parameters of the previous moment, Δk pi , Δk ii , Δk di are the changes of the first PID control parameters respectively.

[0094] The PID controller K is used to calculate the second membership function μ 1 (|e|,|e c |)~μ 1 (|e|,|e c |) and the first PID control parameter output second PID control parameter k p , k i , k d .

[0095] Exemplarily, the second PID control parameter k p , k i , kd It can be obtained by the following formula:

[0096]

[0097] Figure 6 is a second PID control parameter k shown according to an exemplary embodiment p , k i , k d According to Matlab / Simulink simulation, the second PID control parameter k can be obtained p , k i , k d Surface graphics, such as Figure 6 As shown, the three figures from top to bottom are k p , k i , k d Output graph of the three parameters.

[0098] Figure 7 FIG. 1 is a schematic diagram showing a comparison of steam flow rate changes according to an exemplary embodiment. Figure 7 As shown, it can be seen that the steam flow rate using traditional PID control fluctuates between the second and third seconds and between the sixth and seventh seconds, while the steam flow rate using fuzzy PID control is stable and basically unchanged, indicating that the control accuracy is improved.

[0099] Figure 8 FIG. 1 is a schematic diagram showing a comparison of steam temperature changes according to an exemplary embodiment. Figure 8 As shown, it can be seen that the steam temperature using traditional PID control fluctuates greatly between the second and third seconds and between the sixth and seventh seconds, while the steam temperature using fuzzy PID control changes smoothly, has good robustness, and improves control accuracy.

[0100] In summary, the disclosed embodiment provides a control method for a heat storage system, the method comprising: dividing the heat storage system into an evaporation section and a superheating section for segmented control, the evaporation section is a process stage in which water is heated by an evaporator and evaporated to be converted into high-temperature water vapor, and the superheating section is a process stage in which the high-temperature water vapor is heated by a superheater and converted into saturated high-temperature water vapor; and using fuzzy control modules in the evaporation section and the superheating section to accurately control the flow rate and temperature of the water vapor. The disclosed embodiment divides the heat storage system into two parts, the evaporation section and the superheating section, decouples the steam flow rate and temperature, controls the flow rate (gas-liquid ratio) of saturated water vapor in the heating section, and controls the temperature of saturated high-temperature water vapor in the superheating section. Through the fuzzy PID algorithm, the control accuracy and response speed of the steam flow rate and temperature are improved, and the problems of large inertia, control lag, and low accuracy of the traditional heat storage control system are optimized.

[0101] Fig. 9 FIG. 1 is a block diagram of a control device for a heat storage system according to an exemplary embodiment. Fig. 9 As shown, the embodiment of the present disclosure provides a control device 900 for a heat storage system, and the control device 900 may include the following modules:

[0102] The segmentation module 910 is used to divide the heat storage system into an evaporation section and a superheating section for segmented control. The evaporation section is a process stage in which water is heated by an evaporator and evaporated to be converted into high-temperature water vapor. The superheating section is a process stage in which the high-temperature water vapor is heated by a superheater and converted into saturated high-temperature water vapor.

[0103] The control module 920 is used to accurately control the flow rate and temperature of the water vapor in the evaporation section and the superheating section respectively by using fuzzy control modules.

[0104] Optionally, the evaporation section comprises: a first heat storage device, an evaporator, a first fuzzy control module and a first fan connected in series;

[0105] The first heat storage device is used to provide a heat source for the evaporator;

[0106] The evaporator is used to connect to a water source and convert the water source into high-temperature water vapor;

[0107] The first fuzzy control module is used to control the rotation speed of the first fan to control the gas-liquid ratio of the high-temperature water vapor to a given gas-liquid ratio;

[0108] The first fan is used to control the flow rate of the heat transfer medium heated by the first heat storage device according to the output of the first fuzzy control module to adjust the gas-liquid ratio of the high-temperature water vapor at the outlet of the evaporator.

[0109] Optionally, the overheating section comprises: a second heat storage device, a superheater, a second fuzzy control module and a second fan connected in series with each other;

[0110] The second heat storage device is used to provide a heat source for the superheater;

[0111] The superheater is used to convert the high-temperature steam into saturated high-temperature steam;

[0112] The second fuzzy control module is used to control the rotation speed of the second fan to control the temperature of the saturated high-temperature water vapor at a given temperature;

[0113] The second fan is used to control the flow rate of the heat transfer medium heated by the second heat storage device according to the output of the second fuzzy control module to adjust the temperature of the saturated high-temperature water vapor at the outlet of the superheater.

[0114] Optionally, the control module 920 includes a control submodule for performing fuzzy control on the flow rate of the high-temperature water vapor in the evaporation section to accurately control the gas-liquid ratio of the high-temperature water vapor at the outlet of the evaporator;

[0115] The temperature of the high-temperature steam is fuzzily controlled in the superheating section to accurately control the temperature of the saturated high-temperature steam at the superheater outlet.

[0116] Optionally, the fuzzy control module includes: an adder, a differential module, a fuzzy reasoning module, a parameter correction module and a PID controller;

[0117] The adder is used to output the error between the control target value and the measured value of the controlled object;

[0118] The differential module is used to output the rate of change of the error;

[0119] The fuzzy reasoning module is used to output a first membership function according to the error and the rate of change of the error;

[0120] The parameter correction module is used to perform fuzzy reasoning operation according to the first membership function and preset fuzzy reasoning rules, and output a second membership function and a first PID control parameter;

[0121] The PID controller is used to output a second PID control parameter according to the second membership function and the first PID control parameter.

[0122] Optionally, the fuzzy reasoning module uses trigonometric functions as membership functions of input and output variables.

[0123] Optionally, the heat-conducting medium includes nitrogen.

[0124] Regarding the device in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0125] In summary, the disclosed embodiment provides a control device for a heat storage system, the control device comprising: a segmentation module, used to divide the heat storage system into an evaporation section and a superheating section for segmented control, the evaporation section is a process stage in which water is heated by an evaporator and evaporated to be converted into high-temperature water vapor, and the superheating section is a process stage in which the high-temperature water vapor is heated by a superheater and converted into saturated high-temperature water vapor; a control module, used to use a fuzzy control module in the evaporation section and the superheating section to accurately control the flow rate and temperature of the water vapor. The disclosed embodiment divides the heat storage system into two parts, the evaporation section and the superheating section, decouples the steam flow rate and temperature, controls the flow rate (gas-liquid ratio) of saturated water vapor in the heating section, and controls the temperature of saturated high-temperature water vapor in the superheating section. Through the fuzzy PID algorithm, the control accuracy and response speed of the steam flow rate and temperature are improved, and the problems of large inertia, control lag, and low accuracy of the traditional heat storage control system are optimized.

[0126] Fig.10 FIG. 1 is a block diagram of an electronic device according to an exemplary embodiment. Fig.10 As shown, the electronic device 1000 may include: a processor 1001 and a memory 1002. The electronic device 1000 may also include one or more of a multimedia component 1003, an input / output (I / O) interface 1004, and a communication component 1005.

[0127] The processor 1001 is used to control the overall operation of the electronic device 1000 to complete all or part of the steps in the control method of the above-mentioned heat storage system. The memory 1002 is used to store various types of data to support the operation of the electronic device 1000. These data may include, for example, instructions for any application or method used to operate on the electronic device 1000, and application-related data, such as contact data, sent and received messages, pictures, audio, video, etc. The memory 1002 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (Static Random Access Memory, SRAM), electrically erasable programmable read-only memory (Electrically Erasable Programmable Read-Only Memory, EEPROM), erasable programmable read-only memory (Erasable Programmable Read-Only Memory, EPROM), programmable read-only memory (Programmable Read-Only Memory, PROM), read-only memory (Read-Only Memory, ROM), magnetic memory, flash memory, disk or optical disk. The multimedia component 1003 may include a screen and an audio component. The screen may be, for example, a touch screen, and the audio component is used to output and / or input audio signals. For example, the audio component may include a microphone, which is used to receive external audio signals. The received audio signal may be further stored in the memory 1002 or sent through the communication component 1005. The audio component also includes at least one speaker for outputting audio signals. The I / O interface 1004 provides an interface between the processor 1001 and other interface modules, and the above-mentioned other interface modules may be keyboards, mice, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 1005 is used for wired or wireless communication between the electronic device 1000 and other devices. Wireless communication, such as Wi-Fi, Bluetooth, Near Field Communication (NFC), 2G, 3G, 4G, NB-IOT, eMTC, or other 5G, etc., or a combination of one or more of them, is not limited here. Therefore, the corresponding communication component 1005 may include: Wi-Fi module, Bluetooth module, NFC module, etc.

[0128] In an exemplary embodiment, the electronic device 1000 can be implemented by one or more application specific integrated circuits (ASIC), digital signal processors (DSP), digital signal processing devices (DSPD), programmable logic devices (PLD), field programmable gate arrays (FPGA), controllers, microcontrollers, microprocessors or other electronic components to execute the above-mentioned control method of the heat storage system.

[0129] In another exemplary embodiment, a computer-readable storage medium including program instructions is also provided, and when the program instructions are executed by a processor, the steps of the control method of the above-mentioned heat storage system are implemented. For example, the computer-readable storage medium can be the above-mentioned memory 1002 including program instructions, and the above-mentioned program instructions can be executed by the processor 1001 of the electronic device 1000 to complete the control method of the above-mentioned heat storage system.

[0130] Fig.11 1 is a block diagram of an electronic device 1100 according to an exemplary embodiment. For example, the electronic device 1100 may be provided as a server. Fig.11 The electronic device 1100 includes a processor 1122, which may be one or more, and a memory 1132 for storing a computer program executable by the processor 1122. The computer program stored in the memory 1132 may include one or more modules, each corresponding to a set of instructions. In addition, the processor 1122 may be configured to execute the computer program to perform the above-mentioned control method of the thermal storage system.

[0131] In addition, the electronic device 1100 may further include a power supply component 1126 and a communication component 1150, wherein the power supply component 1126 may be configured to perform power management of the electronic device 1100, and the communication component 1150 may be configured to implement communication of the electronic device 1100, for example, wired or wireless communication. In addition, the electronic device 1100 may further include an input / output (I / O) interface 1158. The electronic device 1100 may operate based on an operating system stored in the memory 1132.

[0132] In another exemplary embodiment, a computer-readable storage medium including program instructions is also provided, and when the program instructions are executed by a processor, the steps of the control method of the above-mentioned heat storage system are implemented. For example, the non-transitory computer-readable storage medium can be the above-mentioned memory 1132 including program instructions, and the above-mentioned program instructions can be executed by the processor 1122 of the electronic device 1100 to complete the control method of the above-mentioned heat storage system.

[0133] In another exemplary embodiment, a computer program product is also provided. The computer program product includes a computer program executable by a programmable device, and the computer program has a code portion for executing the control method of the thermal storage system when executed by the programmable device.

[0134] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0135] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0136] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A control method for a heat storage system, characterized in that: The method comprises: The heat storage system is divided into an evaporation section and a superheating section for segmented control, wherein the evaporation section is a process stage in which water is heated by an evaporator and evaporated to be converted into high-temperature water vapor, and the superheating section is a process stage in which the high-temperature water vapor is heated by a superheater and converted into saturated high-temperature water vapor; Fuzzy control modules are respectively used in the evaporation section and the superheating section to accurately control the flow rate and temperature of the water vapor.

2. The control method of the heat storage system according to claim 1, characterized in that: The evaporation section comprises: a first heat storage device, an evaporator, a first fuzzy control module and a first fan connected in series; The first heat storage device is used to provide a heat source for the evaporator; The evaporator is used to connect to a water source and convert the water source into high-temperature water vapor; The first fuzzy control module is used to control the rotation speed of the first fan to control the gas-liquid ratio of the high-temperature water vapor to a given gas-liquid ratio; The first fan is used to control the flow rate of the heat transfer medium heated by the first heat storage device according to the output of the first fuzzy control module to adjust the gas-liquid ratio of the high-temperature water vapor at the outlet of the evaporator.

3. The control method of the heat storage system according to claim 2, characterized in that: The overheating section comprises: a second heat storage device, a superheater, a second fuzzy control module and a second fan connected in series; The second heat storage device is used to provide a heat source for the superheater; The superheater is used to convert the high-temperature steam into saturated high-temperature steam; The second fuzzy control module is used to control the rotation speed of the second fan to control the temperature of the saturated high-temperature water vapor at a given temperature; The second fan is used to control the flow rate of the heat transfer medium heated by the second heat storage device according to the output of the second fuzzy control module to adjust the temperature of the saturated high-temperature water vapor at the outlet of the superheater.

4. The control method of the heat storage system according to claim 1, characterized in that: The fuzzy control modules are respectively used in the evaporation section and the superheating section to accurately control the flow rate and temperature of the water vapor, including: Performing fuzzy control on the flow rate of the high-temperature water vapor in the evaporation section to accurately control the gas-liquid ratio of the high-temperature water vapor at the outlet of the evaporator; The temperature of the high-temperature steam is fuzzily controlled in the superheating section to accurately control the temperature of the saturated high-temperature steam at the superheater outlet.

5. The control method of the heat storage system according to any one of claims 1 to 4, characterized in that: The fuzzy control module includes: an adder, a differential module, a fuzzy reasoning module, a parameter correction module and a PID controller; The adder is used to output the error between the control target value and the measured value of the controlled object; The differential module is used to output the rate of change of the error; The fuzzy reasoning module is used to output a first membership function according to the error and the rate of change of the error; The parameter correction module is used to perform fuzzy reasoning operation according to the first membership function and preset fuzzy reasoning rules, and output a second membership function and a first PID control parameter; The PID controller is used to output a second PID control parameter according to the second membership function and the first PID control parameter.

6. The control method of the heat storage system according to claim 5, characterized in that: The fuzzy reasoning module uses trigonometric functions as membership functions of input and output variables.

7. The control method of the heat storage system according to claim 2, characterized in that: The heat transfer medium includes nitrogen.

8. A control device for a heat storage system, characterized in that: The control device comprises: A segmentation module is used to divide the heat storage system into an evaporation section and a superheating section for segmented control, wherein the evaporation section is a process stage in which water is heated by an evaporator and evaporated to be converted into high-temperature water vapor, and the superheating section is a process stage in which the high-temperature water vapor is heated by a superheater and converted into saturated high-temperature water vapor; The control module is used to accurately control the flow rate and temperature of the water vapor in the evaporation section and the superheating section respectively by using fuzzy control modules.

9. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the steps of the method described in any one of claims 1 to 7 are implemented.

10. An electronic device, characterized in that: include: a memory having a computer program stored thereon; A processor, configured to execute the computer program in the memory to implement the steps of the method according to any one of claims 1 to 7.

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