Temperature and humidity control method and system for electronic room of power plant

Abstract

The invention discloses a power plant electronic room temperature and humidity control method and system, and the method comprises the steps: obtaining an actual temperature and humidity value of an electronic room through microcomputer sampling, comparing the actual temperature and humidity value with a given value, obtaining a deviation value, and calculating a deviation change rate; converting the deviation value and the deviation change rate into a fuzzy quantity, and reasoning the fuzzy quantity according to a pre-established fuzzy control rule to obtain a fuzzy control quantity; the fuzzy control quantity is defuzzified into an accurate quantity, and the accurate quantity is transmitted to an execution mechanism for adjustment, so that accurate control over the temperature and humidity of the electronic room of the power plant is achieved. The temperature and humidity parameters are fuzzified, the membership function is combined for intelligent decision making, various working condition changes can be quickly responded, accurate and efficient control over the temperature and humidity in the electronic room of the power plant is achieved, and it is ensured that the environmental condition in the electronic room is always in the optimal state; and by maintaining a more stable and suitable working environment, the service life of the electronic plate is remarkably prolonged, and the reliability and safety of equipment are enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of temperature and humidity control, and in particular to a temperature and humidity control method and system for an electronic room in a power plant. Background Art

[0002] In modern power systems, power plants are core facilities for energy conversion, and their stable operation is directly related to the safety and efficiency of the entire power grid. The electronics room, as an important part of the power plant, is responsible for the placement and operation of many precision electronic equipment. These devices have extremely strict requirements on the working environment, especially temperature and humidity conditions, which directly affect the performance and service life of the equipment.

[0003] The traditional temperature and humidity control method of the electronic room in a power plant mainly relies on manual monitoring and manual adjustment. Specifically, when the staff finds that the indoor temperature exceeds the set value, they need to manually start the refrigeration air conditioner to cool down; conversely, if the temperature is lower than the set value, they need to turn on the heating air conditioner to raise the room temperature. Similarly, a similar approach is adopted for humidity control, that is, the indoor humidity is adjusted to a suitable range by starting a dehumidifier or humidifier. However, this method has many shortcomings: ① Slow response speed: Since manual judgment and corresponding operations are required, there is a certain delay between the discovery of the problem and the taking of measures, and it is impossible to achieve instant adjustment. ② Low accuracy: Manual operations cannot ensure that each adjustment can accurately reach the ideal temperature and humidity level, which is easy to cause over-adjustment or under-adjustment, affecting the normal operation of the equipment. ③ Poor continuity: Maintaining a stable temperature and humidity environment for a long time puts forward high requirements for manual monitoring, and it is often difficult to avoid mistakes caused by negligence or fatigue in actual operations. ④ Waste of resources: Frequent manual intervention not only increases labor costs, but also may lead to unnecessary energy consumption increases, which is not in line with the development trend of energy conservation and emission reduction.

[0004] In view of the existence of the above problems, it is particularly necessary to develop an intelligent control system that can automatically monitor and accurately adjust the temperature and humidity of the electronic room in the power plant. The method should have functions such as real-time data acquisition, analysis and processing, and automatic control to ensure a constant and suitable working environment for electronic equipment, thereby ensuring the safety and economy of the overall operation of the power plant. Summary of the invention

[0005] In view of the above existing problems, the present invention is proposed.

[0006] Therefore, the present invention provides a method and system for controlling temperature and humidity in an electronic room of a power plant to solve the problems of slow response speed, low processing accuracy, poor continuity and waste of resources in the prior art.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0008] In a first aspect, the present invention provides a method for controlling temperature and humidity in an electronic room of a power plant, comprising: acquiring actual temperature and humidity values ​​of the electronic room through microcomputer sampling, comparing with given values ​​to obtain deviation values ​​and calculating the deviation change rate; converting the deviation values ​​and the deviation change rate into fuzzy quantities, and inferring the fuzzy quantities according to pre-established fuzzy control rules to obtain fuzzy control quantities; and defuzzifying the fuzzy control quantities into precise quantities and transmitting them to an actuator for adjustment to achieve precise control of the temperature and humidity in the electronic room of the power plant.

[0009] As a preferred solution of the temperature and humidity control method for the electronic room of a power plant according to the present invention, the step of comparing with a given value to obtain a deviation value and calculating the deviation change rate comprises:

[0010] The actual temperature and humidity values ​​of the electronic room are obtained through microcomputer sampling. T and H are set to represent the ambient temperature and humidity values ​​of the electronic room sampled and output by the fuzzy control system, respectively. T0 and H0 represent the most suitable temperature and humidity values ​​of the electronic board given by expert experience, respectively.

[0011] The electronic room environment temperature and humidity values ​​sampled and output by the fuzzy control system are compared with the most suitable temperature and humidity values ​​of the electronic board given based on expert experience to obtain a deviation value, and the deviation change rate is calculated based on the deviation value.

[0012] As a preferred solution of the temperature and humidity control method for the electronic room of a power plant according to the present invention, the step of converting the deviation value and the deviation change rate into a fuzzy quantity comprises:

[0013] The input variables of the fuzzy controller are et1, eh1, dt1, and dh1, wherein et1 represents the deviation between the given temperature value and the actual measured temperature value of the electronic room environment, eh1 represents the deviation between the given humidity value and the actual measured humidity value of the electronic room environment, dt1 represents the rate of change of the temperature deviation over time, and dh1 represents the rate of change of the humidity deviation over time. The output variables of the fuzzy controller are the switch states of the ventilator, dehumidifier, humidifier, and air conditioner.

[0014] Among them, a triangular membership function is selected for the temperature and humidity deviation and its change rate, and the fuzzy set width is determined according to theoretical analysis. The input variables are quantified according to the triangular membership function and the corresponding membership values ​​are assigned.

[0015] As a preferred solution of the temperature and humidity control method for the power plant electronic room of the present invention, the pre-established fuzzy control rules include:

[0016] By following the rule that changing temperature will affect humidity and changing humidity will affect temperature, the switch state of the actuator is set, that is, when a ventilator and a dehumidifier are turned on, the cooling and dehumidification effects are enhanced, but the speed is slow. When the humidifier is turned on, it plays a role of increasing temperature and reducing humidity, and when the air conditioner is turned on, it plays a role of rapid dehumidification.

[0017] Fuzzy control rules between temperature and humidity, and between temperature change rate and humidity change rate are formulated according to the switch state of the actuator.

[0018] As a preferred solution of the temperature and humidity control method for the power plant electronic room of the present invention, the defuzzification of the fuzzy control quantity into a precise quantity and the transmission to the actuator for adjustment comprises:

[0019] The center of gravity method is used to calculate the exact amount of fuzzy control output. The calculation rule is:

[0020]

[0021] Where n is the number of fuzzy variables, ω j is a fuzzy variable, μ(ω j ) is the membership degree corresponding to the fuzzy variable;

[0022] After the temperature and humidity error or error change rate between the electronics is quantified, a quantization level is obtained, and the state of each actuator in the control table is queried according to the quantization level;

[0023] The calculated precise amount is compared with a first threshold value. If the calculated precise amount is equal to the first threshold value, the original state of the actuator is maintained. If the calculated precise amount is greater than the first threshold value, the corresponding actuator is started. If the calculated precise amount is less than the first threshold value, the corresponding actuator is closed.

[0024] As a preferred solution of the temperature and humidity control method for the electronic room of a power plant described in the present invention, it also includes:

[0025] The PLC program for fuzzy control of temperature and humidity in the electronic room includes input quantity sampling and fuzzification program, quantization level program, fuzzy control query program, actuator control program and early warning program;

[0026] A fuzzy control query table for each actuator is established, and the fuzzy control query table is placed in the memory. A programmable logic controller program is written to realize the control of the actuator by the fuzzy controller, thereby maintaining a constant temperature and humidity state in the electronic room.

[0027] As a preferred solution of the temperature and humidity control method for the electronic room of a power plant described in the present invention, the fuzzy control system includes input and output interfaces, a fuzzy controller, an actuator, a controlled object and a measuring device, the core part of which is the fuzzy controller, and precise control of the controlled object is achieved by software programming.

[0028] In a second aspect, the present invention provides a temperature and humidity control system for an electronic room in a power plant, comprising:

[0029] The deviation comparison module is used to obtain the actual temperature and humidity values ​​of the electronic room through microcomputer sampling, compare them with the given values ​​to obtain the deviation value and calculate the deviation change rate;

[0030] A fuzzy processing module, used for converting the deviation value and the deviation change rate into a fuzzy quantity, and inferring the fuzzy quantity according to a pre-established fuzzy control rule to obtain a fuzzy control quantity;

[0031] The regulating control module is used to achieve precise control of the temperature and humidity of the electronic room of the power plant by defuzzifying the fuzzy control quantity into a precise quantity and transmitting the precise quantity to the actuator for regulation.

[0032] In a third aspect, the present invention provides an electronic device, comprising:

[0033] Memory and processor;

[0034] The memory is used to store computer executable instructions, and the processor is used to execute the computer executable instructions. When the computer executable instructions are executed by the processor, the steps of the temperature and humidity control method of the electronic room of the power plant are implemented.

[0035] In a fourth aspect, the present invention provides a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, implement the steps of the method for controlling temperature and humidity in an electronic room of a power plant.

[0036] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention provides a method and system for controlling temperature and humidity in the electronic room of a power plant, which can quickly respond to various operating conditions by fuzzy processing of temperature and humidity parameters and combining membership functions for intelligent decision-making, thereby achieving accurate and efficient control of temperature and humidity in the electronic room of the power plant, ensuring that the environmental conditions in the electronic room are always in the best state; and the present invention not only improves the response speed and control accuracy of the system, but also effectively reduces energy consumption and reduces the need for manual intervention; more importantly, by maintaining a more stable and suitable working environment, the service life of electronic boards is significantly extended, and the reliability and safety of equipment are enhanced, thereby bringing significant economic and environmental benefits to the overall operation of the power plant. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0038] Figure 1 A schematic diagram of the overall process logic of a method for controlling temperature and humidity in an electronic room of a power plant according to an embodiment of the present invention;

[0039] Figure 2 A schematic diagram of the principle of a fuzzy control system for temperature and humidity in an electronic room of a power plant according to an embodiment of the present invention;

[0040] Figure 3 Schematic diagram of the membership function of input variables of the temperature and humidity control method of the electronic room of a power plant according to an embodiment of the present invention. DETAILED DESCRIPTION

[0041] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the drawings of the specification. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary persons in the art without creative work should fall within the scope of protection of the present invention.

[0042] Example 1

[0043] Reference Figure 1-Figure 3 As an embodiment of the present invention, a method for controlling temperature and humidity in an electronic room of a power plant is provided. The fuzzy control system includes an input and output interface, a fuzzy controller, an actuator, a controlled object and a measuring device. The core part is the fuzzy controller, and the precise control of the controlled object is achieved by software programming. Figure 1 The specific steps shown include:

[0044] S100: The actual temperature and humidity values ​​of the electronic room are obtained through microcomputer sampling, compared with the given values ​​to obtain the deviation value and calculate the deviation change rate;

[0045] S200: converting the deviation value and the deviation change rate into a fuzzy quantity, and inferring the fuzzy quantity according to a pre-established fuzzy control rule to obtain a fuzzy control quantity;

[0046] S300: The fuzzy control quantity is defuzzified into a precise quantity and transmitted to the actuator for adjustment to achieve precise control of the temperature and humidity in the electronic room of the power plant.

[0047] It should be noted that the present invention provides a temperature and humidity control method and system for the electronic room of a power plant. By fuzzy processing the temperature and humidity parameters and combining the membership function to make intelligent decisions, it can quickly respond to various operating conditions. Changes can be achieved, and accurate and efficient control of the temperature and humidity in the electronic room of the power plant can be achieved, ensuring that the environmental conditions in the electronic room are always in the best state; and the present invention not only improves the response speed and control accuracy of the system, but also effectively reduces energy consumption and reduces the need for manual intervention; more importantly, by maintaining a more stable and suitable working environment, the service life of electronic boards is significantly extended, and the reliability and safety of the equipment are enhanced, thereby bringing significant economic and environmental benefits to the overall operation of the power plant.

[0048] In the embodiment of the present application, the above step S100 includes the following sub-steps A1-A2;

[0049] In A1: the actual temperature and humidity values ​​of the electronic room are obtained through microcomputer sampling, T and H are set to represent the ambient temperature and humidity values ​​of the electronic room sampled and output by the fuzzy control system, and T0 and H0 represent the most suitable temperature and humidity values ​​of the electronic board given by expert experience;

[0050] In A2: the temperature and humidity values ​​of the electronic room environment sampled and output by the fuzzy control system are compared with the most suitable temperature and humidity values ​​of the electronic board given by expert experience to obtain the deviation value, and the deviation change rate is calculated according to the deviation value;

[0051] It should be noted that the above step S100 can monitor the changes in temperature and humidity in the electronic room in real time and accurately, promptly detect deviations from the target values, provide accurate data support for subsequent temperature and humidity control, ensure that the environmental conditions in the electronic room of the power plant are always maintained in the most suitable state, and help protect the normal operation of electronic equipment and extend its service life.

[0052] In the embodiment of the present application, the above step S200 converts the deviation value and the deviation change rate into a fuzzy quantity, and the fuzzy control quantity is obtained by reasoning the fuzzy quantity according to the pre-established fuzzy control rule, which specifically includes the following contents:

[0053] According to the actual situation in the electronic room, the input variables of the fuzzy controller are set as et1, eh1, dt1, and dh1, where et1 represents the deviation between the given temperature value and the actual measured temperature value of the electronic room environment, eh1 represents the deviation between the given humidity value and the actual measured humidity value of the electronic room environment, dt1 represents the rate of change of the temperature deviation over time, and dh1 represents the rate of change of the humidity deviation over time. The input variables are fuzzified. The specific fuzzification information of the input variables is shown in Table 1.

[0054] Table 1: Fuzzification information of input variables;

[0055] Input variables <![CDATA[et1]]> <![CDATA[dt1]]> <![CDATA[eh1]]> <![CDATA[dh1]]> Domain [-4,4] [-1,1] [-8,+8] [-4,+4] Fuzzy Sets A A A A Quantization level 9 9 9 9 Fuzzy domain B B B B Impact Factor 1 4 0.5 1

[0056] It should be noted that the fuzzy set of the input variables et1, eh1, dt1, and dh1 of the fuzzy controller is set to A, A is (NB, NS, ZE, PS, PB), that is, (negative large, negative small, zero, positive small, positive large), and the fuzzy domain is set to B, B is (-4, -3, -2, -1, 0, 1, 2, 3, 4);

[0057] The output variables of the fuzzy controller are the switch states of the ventilator, dehumidifier, humidifier, and air conditioner. The output variables are all switch quantities, with only two states: on and off (0 / 1). The symbols u1, u2, u3, and u4 are used to represent these four variables respectively.

[0058] Furthermore, for the temperature and humidity deviation and its change rate, a triangular membership function is selected, and the fuzzy set width is determined according to theoretical analysis. The input variables are quantified according to the triangular membership function and the corresponding membership values ​​are assigned. If the fuzzy set width is too small, some intervals will be vacant, and the corresponding control rules may not be found. If the width is too large, there will be too many overlapping parts of the control rules, which will increase the mutual influence and slow down the response speed. Therefore, Figure 3 The width of the fuzzy set shown is 4. According to the membership function, the input variables are quantized into 9 levels, and the corresponding membership values ​​are shown in Table 2;

[0059] Table 2: Fuzzy variable membership assignment.

[0060]

[0061] Specifically, Figure 2 The fuzzy controller algorithm reasoning process is shown in the figure. First, the temperature and humidity deviation, that is, its rate of change, is taken as the input variable and then quantified and input to the fuzzy controller. The fuzzy controller controls the ventilator, dehumidifier, humidifier and air conditioner through a series of algorithms to achieve the purpose of automatic balance of temperature and humidity in the electronic room environment.

[0062] Furthermore, through the study of the temperature and humidity control system of the actual electronic room, it was found that there is a certain correlation between temperature and humidity, that is, changing the temperature will affect the humidity, and changing the humidity will affect the temperature. The switch state of the actuator is set, that is, the cooling and dehumidification effects are enhanced when the ventilator and dehumidifier are turned on, but the speed is slow. After the humidifier is turned on, it plays a role in heating and dehumidification, and after the air conditioner is turned on, it plays a role in rapid dehumidification. Fuzzy control rules between temperature and humidity, temperature change rate and humidity change rate are formulated according to the switch state of the actuator, as shown in Table 3, where U is u i The switch state of (i=1,2,3,4), on is 1, off is 0.

[0063] Table 3: Fuzzy control rules table;

[0064]

[0065]

[0066] It should be noted that the above step S200 can effectively deal with the uncertainty and nonlinear problems existing in the system, making the control strategy more flexible and intelligent, and better adaptable to environmental changes and external disturbances, thereby improving the robustness and adaptability of the control system, thereby ensuring the accuracy and stability of temperature and humidity control in the electronic room of the power plant.

[0067] In the embodiment of the present application, the above step S300 includes the following sub-steps C1-C2;

[0068] In C1: defuzzify the fuzzy control quantity into an accurate quantity;

[0069] In C2: the precise amount is transmitted to the actuator for regulation;

[0070] Specifically, the center of gravity method is used to calculate the exact amount of fuzzy control output, and the calculation rule is:

[0071]

[0072] Where n is the number of fuzzy variables, ω j is a fuzzy variable, μ(ω j ) is the membership degree corresponding to the fuzzy variable;

[0073] Specifically, the temperature and humidity error or error change rate between the electronics is quantified to obtain a quantization level, and the state of each actuator in the control table is queried according to the quantization level;

[0074] Specifically, the calculated precise amount is compared with a first threshold value. If the calculated precise amount is equal to the first threshold value, the original state of the actuator is maintained. If the calculated precise amount is greater than the first threshold value, the corresponding actuator is started. If the calculated precise amount is less than the first threshold value, the corresponding actuator is turned off. The first threshold value is set to 0.5.

[0075] It should be explained that the programmable logic controller program for fuzzy control of temperature and humidity in the electronics room includes input quantity sampling and fuzzification program, quantization level program, fuzzy control query program, actuator control program and early warning program; a fuzzy control query table for each actuator is established, and the fuzzy control query table is placed in the memory. Writing a programmable logic controller program can realize the fuzzy controller's control of the actuator, thereby maintaining a constant temperature and humidity state in the electronics room.

[0076] It should be noted that the above step S300 realizes the effective conversion from theoretical control strategy to actual operation by defuzzifying the fuzzy control quantity into a precise quantity and transmitting it to the actuator for adjustment, thereby ensuring the accurate execution of the control instructions. This operation can not only accurately adjust the temperature and humidity of the electronic room of the power plant and maintain it within the ideal range, but also respond quickly to environmental changes, ensure the stability and safety of the operation of electronic equipment, and improve the efficiency and reliability of the entire control system.

[0077] Example 2

[0078] This embodiment provides a temperature and humidity control system for an electronic room in a power plant, including:

[0079] The deviation comparison module is used to obtain the actual temperature and humidity values ​​of the electronic room through microcomputer sampling, compare them with the given values ​​to obtain the deviation value and calculate the deviation change rate;

[0080] A fuzzy processing module is used to convert the deviation value and the deviation change rate into a fuzzy quantity, and to infer the fuzzy quantity according to a pre-established fuzzy control rule to obtain a fuzzy control quantity;

[0081] The regulating control module is used to achieve precise control of the temperature and humidity in the electronic room of the power plant by defuzzifying the fuzzy control quantity into a precise quantity and transmitting it to the actuator for regulation.

[0082] It should be noted that the technical solution of the system for controlling the temperature and humidity of the electronic room of the power plant and the technical solution of the temperature and humidity control method of the electronic room of the power plant mentioned above belong to the same concept. For the details not described in detail in the technical solution of the temperature and humidity control system of the electronic room of the power plant in this embodiment, please refer to the description of the technical solution of the temperature and humidity control method of the electronic room of the power plant mentioned above.

[0083] The above-mentioned unit modules may be embedded in or independent of a processor in a computer device in the form of hardware, or may be stored in a memory in a computer device in the form of software, so that the processor can call and execute operations corresponding to the above-mentioned modules.

[0084] This embodiment also provides an electronic device, which includes a processor, a memory, a communication interface, a display screen and an input device connected through a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be implemented through WIFI, an operator network, NFC (near field communication) or other technologies. When the computer program is executed by the processor, a method for controlling the temperature and humidity of an electronic room in a power plant is implemented. The display screen of the computer device can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covered on the display screen, or a key, trackball or touchpad set on the housing of the computer device, or an external keyboard, touchpad or mouse, etc.

[0085] This embodiment also provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, the method proposed in the above embodiment is implemented.

[0086] The storage medium proposed in this embodiment and the method proposed in the above embodiment belong to the same inventive concept. The technical details not fully described in this embodiment can be referred to the above embodiment, and this embodiment has the same beneficial effects as the above embodiment.

[0087] Through the above description of the implementation methods, the technicians in the relevant field can clearly understand that the present invention can be implemented by means of software and necessary general hardware, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as a computer floppy disk, read-only memory (ReadOnly, Memory, ROM), random access memory (RandomAccess Memory, RAM), flash memory (FLASH), hard disk or optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform the methods of various embodiments of the present invention.

[0088] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

[0089] Those skilled in the art will appreciate that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can adopt the form of complete hardware embodiments, complete software embodiments, or embodiments in combination with software and hardware. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code. The scheme in the embodiments of the present application can be implemented in various computer languages, for example, object-oriented programming language Java and literal scripting language JavaScript, etc.

[0090] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0091] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0092] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1The steps for the functions specified in one or more boxes.

[0093] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0094] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A method for controlling temperature and humidity in an electronic room of a power plant, characterized in that: include: The actual temperature and humidity values ​​of the electronic room are obtained by microcomputer sampling, compared with the given values ​​to obtain the deviation value and calculate the deviation change rate; Converting the deviation value and the deviation change rate into a fuzzy quantity, and inferring the fuzzy quantity according to a pre-established fuzzy control rule to obtain a fuzzy control quantity; The fuzzy control quantity is defuzzified into a precise quantity and transmitted to an actuator for adjustment, so as to achieve precise control of the temperature and humidity of the electronic room of the power plant.

2. The temperature and humidity control method for the electronic room of a power plant according to claim 1, characterized in that: The step of comparing with a given value to obtain a deviation value and calculating the deviation change rate comprises: The actual temperature and humidity values ​​of the electronic room are obtained through microcomputer sampling. T and H are set to represent the ambient temperature and humidity values ​​of the electronic room sampled and output by the fuzzy control system, respectively. T0 and H0 represent the most suitable temperature and humidity values ​​of the electronic board given by expert experience, respectively. The electronic room environment temperature and humidity values ​​sampled and output by the fuzzy control system are compared with the most suitable temperature and humidity values ​​of the electronic board given based on expert experience to obtain a deviation value, and the deviation change rate is calculated based on the deviation value.

3. The temperature and humidity control method for the electronic room of a power plant as claimed in claim 2, characterized in that: The step of converting the deviation value and the deviation change rate into a fuzzy quantity comprises: The input variables of the fuzzy controller are et1, eh1, dt1, and dh1, wherein et1 represents the deviation between the given temperature value and the actual measured temperature value of the electronic room environment, eh1 represents the deviation between the given humidity value and the actual measured humidity value of the electronic room environment, dt1 represents the rate of change of the temperature deviation over time, and dh1 represents the rate of change of the humidity deviation over time. The output variables of the fuzzy controller are the switch states of the ventilator, dehumidifier, humidifier, and air conditioner. Among them, a triangular membership function is selected for the temperature and humidity deviation and its change rate, and the fuzzy set width is determined according to theoretical analysis. The input variables are quantified according to the triangular membership function and the corresponding membership values ​​are assigned.

4. The temperature and humidity control method for the electronic room of a power plant as claimed in claim 3, characterized in that: The pre-established fuzzy control rules include: By following the rule that changing temperature will affect humidity and changing humidity will affect temperature, the switch state of the actuator is set, that is, when a ventilator and a dehumidifier are turned on, the cooling and dehumidification effects are enhanced, but the speed is slow. When the humidifier is turned on, it plays a role of increasing temperature and reducing humidity, and when the air conditioner is turned on, it plays a role of rapid dehumidification. Fuzzy control rules between temperature and humidity, and between temperature change rate and humidity change rate are formulated according to the switch state of the actuator.

5. The method for controlling temperature and humidity in an electronic room of a power plant as claimed in claim 4, characterized in that: The defuzzification of the fuzzy control quantity into a precise quantity and transmitting the precise quantity to the actuator for adjustment comprises: The center of gravity method is used to calculate the exact amount of fuzzy control output. The calculation rule is: Where n is the number of fuzzy variables, ω j is a fuzzy variable, μ(ω j ) is the membership degree corresponding to the fuzzy variable; After the temperature and humidity error or error change rate between the electronics is quantified, a quantization level is obtained, and the state of each actuator in the control table is queried according to the quantization level; The calculated precise amount is compared with a first threshold value. If the calculated precise amount is equal to the first threshold value, the original state of the actuator is maintained. If the calculated precise amount is greater than the first threshold value, the corresponding actuator is started. If the calculated precise amount is less than the first threshold value, the corresponding actuator is closed.

6. The method for controlling temperature and humidity in an electronic room of a power plant according to claim 1, characterized in that: Also includes: The PLC program for fuzzy control of temperature and humidity in the electronic room includes input quantity sampling and fuzzification program, quantization level program, fuzzy control query program, actuator control program and early warning program; A fuzzy control query table for each actuator is established, and the fuzzy control query table is placed in the memory. A programmable logic controller program is written to realize the control of the actuator by the fuzzy controller, thereby maintaining a constant temperature and humidity state in the electronic room.

7. The method for controlling temperature and humidity in an electronic room of a power plant according to claim 1, characterized in that: The fuzzy control system includes input and output interfaces, a fuzzy controller, an actuator, a controlled object and a measuring device. The core part is the fuzzy controller, and the precise control of the controlled object is achieved by software programming.

8. A system using the temperature and humidity control method for an electronic room in a power plant as claimed in any one of claims 1 to 7, characterized in that: include: The deviation comparison module is used to obtain the actual temperature and humidity values ​​of the electronic room through microcomputer sampling, compare them with the given values ​​to obtain the deviation value and calculate the deviation change rate; A fuzzy processing module, used for converting the deviation value and the deviation change rate into a fuzzy quantity, and inferring the fuzzy quantity according to a pre-established fuzzy control rule to obtain a fuzzy control quantity; The regulating control module is used to achieve precise control of the temperature and humidity of the electronic room of the power plant by defuzzifying the fuzzy control quantity into a precise quantity and transmitting the precise quantity to the actuator for regulation.

9. An electronic device, comprising: Memory and processor; The memory is used to store computer executable instructions, and the processor is used to execute the computer executable instructions. When the computer executable instructions are executed by the processor, the steps of the temperature and humidity control method for the electronic room of a power plant described in any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, implement the steps of the method for controlling temperature and humidity in an electronic room of a power plant as claimed in any one of claims 1 to 7.

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