Environmental control air conditioner control method combining water curtain humidity regulation and condensing agent refrigeration

Abstract

The invention discloses an environment control air conditioner control method combining water curtain humidity regulation and condensing agent refrigeration, which comprises the following steps: acquiring an environment temperature value and an environment humidity value in a current time period; calculating a corrected temperature value and a corrected humidity value; constructing a gray prediction model to predict a corrected temperature value and a corrected humidity value of a next time period; and comparing the corrected temperature value with a preset temperature value, comparing the corrected humidity value with a preset humidity value, and controlling and adjusting a condensing agent refrigeration strategy, a water curtain humidity adjustment control strategy, the fan air volume and an air conditioner dehumidification function according to the corrected temperature value, the preset temperature value, the corrected humidity value and the preset humidity value. And returning to execute the operation of acquiring the environment temperature value and the environment humidity value after the time period. According to the method, through two control modes of a water curtain humidity adjusting control strategy and a condensing agent refrigerating strategy, the lag delay effect of temperature / humidity control is solved by adopting a predictive control technology, and accurate control over the temperature and the humidity is achieved while rapid humidity adjusting and refrigerating of the air conditioner are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of air conditioning refrigeration and humidity control, and in particular to an environmental control air conditioning control method combining water curtain humidity control and condensing agent refrigeration. Background Art

[0002] The principle of the air conditioning humidification function is to improve the dry environment by increasing the humidity of the indoor air. Traditional environmentally controlled air conditioners usually use thermostats to adjust the ambient temperature, and use humidifiers to adjust the ambient humidity by spraying and other methods. The disadvantages of this method are slow humidification speed and unreasonable temperature and humidity separation. Especially for places such as farms that require efficient refrigeration and rapid humidification, multiple humidifiers need to be added, and uneven humidity adjustment will occur. For example, when the humidity is too high, it is slow to reduce the humidity, the temperature and humidity are not adjusted reasonably, and the adjustment is delayed. In addition, the humidity adjustment requires additional equipment, which is costly and consumes a lot of power, resulting in energy waste. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an environmental air-conditioning control method that combines water curtain humidity control and condensing agent refrigeration. Through the two controls of water curtain humidity control strategy and condensing agent refrigeration strategy, and the use of predictive control technology to solve the lag delay effect of temperature / humidity control, the air-conditioning can be quickly humidified and cooled, and the temperature and humidity can be accurately controlled, and the cost and energy consumption can be effectively reduced.

[0004] The purpose of the present invention is achieved through the following technical solutions: A method for controlling an environmental air conditioner combining water curtain humidity control and condensing agent refrigeration, characterized in that it comprises the following steps: Get the ambient temperature and humidity values ​​within the current time period; Calculate the corrected temperature value according to the ambient temperature value, and calculate the corrected humidity value according to the ambient humidity value; Constructing a grey prediction model and predicting the corrected temperature value and corrected humidity value of the next time period according to the corrected temperature value and corrected humidity value; Compare the corrected temperature value with the preset temperature value. If the corrected temperature value is greater than or equal to the preset temperature value, start the condensing agent cooling strategy before the end of the current time period, close the water curtain humidity control strategy, and call the new composite fuzzy PID algorithm to adjust the fan air volume according to the corrected temperature value and the preset temperature value. If the corrected temperature value is less than the preset temperature value, then compare the corrected humidity value with the preset humidity value. If the corrected humidity value is less than or equal to the preset humidity value, then turn off the condensing agent refrigeration strategy before the end of the current time period, turn on the water curtain humidity control strategy, and dynamically adjust the water volume of the water curtain according to the preset humidity value and the corrected humidity value. Call the new composite fuzzy PID algorithm to adjust the fan volume according to the corrected humidity value and the preset humidity value. If the corrected humidity value is greater than the preset humidity value, turn off the condensing agent refrigeration strategy and the water curtain humidity control strategy, and then determine whether to turn on the air conditioning dehumidification function based on the difference between the corrected humidity value and the preset humidity value. If the corrected temperature value or the corrected humidity value is an abnormal value, the error prevention process is started and the condensing agent refrigeration strategy, the water curtain humidity control strategy, the fan air volume and the air conditioning dehumidification function are forcibly shut down; After a time period, the operation of obtaining the ambient temperature and humidity is returned.

[0005] Furthermore, the ambient temperature value T1 and the ambient temperature value T2 are collected by two groups of temperature sensors, and the ambient humidity value H1 and the ambient humidity value H2 are collected by two groups of humidity sensors.

[0006] Further, the corrected temperature value is calculated according to the ambient temperature value, and the corrected humidity value is calculated according to the ambient humidity value. Specifically, the following operations are performed: If the ambient temperature value T1<Terr, the ambient temperature value T2<Terr, and |T1-T2|≤2℃, then the correction temperature value TjA=(T1+T2) / 2, where Terr is the abnormal temperature value; If the ambient temperature value T1<Terr, and |T1-T2|>2℃, no matter what the ambient temperature value T2 is, the correction temperature value TjA=T1; If the ambient temperature value T1≥Terr, and the ambient temperature value T2<Terr, then the correction temperature value TjA=T2; If the ambient temperature value T1≥Terr, the ambient temperature value T2≥Terr, then the correction temperature value TjA=Terr; If the ambient humidity value H1<Herr, the ambient humidity value H2<Herr, and |H1-H2|≤10%, then the corrected humidity value HjA=(H1+H2) / 2, where Herr is the abnormal humidity value; If the ambient humidity value H1<Herr, and |H1-H2|>10%, no matter what the value of H2 is, the corrected humidity value HjA=H1; If the ambient humidity value H1≥Herr, and the ambient humidity value H2<Herr, then the corrected humidity value HjA=H2; If the ambient humidity value H1≥Herr and the ambient humidity value H2≥Herr, then the corrected humidity value HjA=Herr.

[0007] Furthermore, the construction process of the grey prediction model is as follows: The original data recorded is: , The original data includes the current air volume, water volume, time period, corrected temperature value and corrected humidity value. 0 represents the initial original data set, X 0 (n) represents the nth element in the initial raw data, where n is a positive integer; Accumulate the initial original data set to obtain a new time series X 1 : , , Among them, X 0 (i) represents the i-th element in the original raw data, X 1 (n) represents the nth element in the new time series; Formulate a first-order differential equation based on the new time series: , Among them, θ and u are gray parameters; Solving the first-order differential equation yields the corrected temperature value TA and the corrected humidity value HA.

[0008] Furthermore, the new composite fuzzy PID algorithm is called to adjust the fan air volume according to the corrected temperature value and the preset temperature value, and the following operations are performed specifically: The difference between the corrected temperature value TA and the preset temperature value TB is taken as input, and the difference is processed as an absolute value, and the absolute value of the difference is compared with the preset temperature threshold. If the absolute value of the difference is less than the preset temperature threshold, the PID controller is used to control the processing and output the fan air volume. If the absolute value of the difference is greater than or equal to the preset temperature threshold, the fuzzy controller is used to control the processing and output the fan air volume.

[0009] Furthermore, the water volume of the water curtain is dynamically adjusted according to the preset humidity value and the corrected humidity value, and the following operations are specifically performed: Dynamically adjust the water volume of the water curtain according to the humidity difference ΔH1=HB-HA between the preset humidity value and the corrected humidity value; If the humidity difference ΔH1 ≤ the first humidity difference threshold, the water volume of the water curtain is adjusted to 0 water volume; If the humidity difference ΔH1> the first humidity difference threshold and ΔH1< the second humidity difference threshold, the water volume of the water curtain is adjusted to the first water volume; If the humidity difference ΔH1 ≥ the second humidity difference threshold and ΔH1 < the third humidity difference threshold, the water volume of the water curtain is adjusted to the second water volume; If the humidity difference ΔH1 ≥ the third humidity difference threshold and ΔH1 < the fourth humidity difference threshold, the water volume of the water curtain is adjusted to the third water volume; If the humidity difference ΔH1 ≥ the fourth humidity difference threshold and ΔH1 < the fifth humidity difference threshold, the water volume of the water curtain is adjusted to the fourth water volume; If the humidity difference ΔH1 ≥ the fifth humidity difference threshold and ΔH1 < the sixth humidity difference threshold, the water volume of the water curtain is adjusted to the fifth water volume; If the humidity difference ΔH1 ≥ the sixth humidity difference threshold, the water volume of the water curtain is adjusted to the sixth water volume; Among them, the first humidity difference threshold < the second humidity difference threshold < the third humidity difference threshold < the fourth humidity difference threshold < the fifth humidity difference threshold < the sixth humidity difference threshold, and 0 water volume < the first water volume < the second water volume < the third water volume < the fourth water volume < the fifth water volume < the sixth water volume.

[0010] Furthermore, the new composite fuzzy PID algorithm is called to adjust the fan air volume according to the corrected humidity value and the preset humidity value, and the following operations are performed specifically: The difference between the corrected humidity value HA and the preset humidity value HB is taken as input, and the difference is processed as an absolute value. The absolute value of the difference is compared with the preset humidity threshold. If the absolute value of the difference is less than the preset humidity threshold, the PID controller is used to control the processing and output the fan air volume. If the absolute value of the difference is greater than or equal to the preset humidity threshold, the fuzzy controller is used to control the processing and output the fan air volume.

[0011] Further, the expression of the PID controller is: , , , Among them, K p , K i , K d are the integral coefficient, proportional coefficient and differential coefficient respectively, e(t) is the input, i.e. the difference between the corrected temperature value TA and the preset temperature value TB or the difference between the corrected humidity value HA and the preset humidity value HB, G(t) is the output fan air volume, U(t) is the real-time calculated PID output, E(t) is the maximum PID output, and Kpmax is the maximum Kp value.

[0012] Furthermore, the operation process of the fuzzy controller is: setting a fuzzy rule table, looking up the table according to the actual input, calculating and outputting the corresponding fan air volume, wherein the setting method of the fuzzy rule table is as follows: taking the initial ambient temperature value or ambient humidity value at startup as the initial value, taking the preset temperature value or preset humidity value as the maximum value, calculating by 100 parts, the minimum change accuracy = (maximum value - initial value) / 100, the output is designed according to the basic principle mode of increasing first and then decreasing, the serial number of the fuzzy rule table = actual input / minimum change accuracy, the difference between the corrected temperature value TA and the preset temperature value TB or the difference between the corrected humidity value HA and the preset humidity value HB is the actual input.

[0013] Furthermore, if the corrected humidity value is greater than the preset humidity value, the condensing agent refrigeration strategy and the water curtain humidity control strategy are turned off, and then the air conditioning dehumidification function is determined based on the difference between the corrected humidity value and the preset humidity value. Specifically, the following operations are performed: If the corrected temperature value TA is less than the preset temperature value TB, and the corrected humidity value HA is greater than the preset humidity value HB, the condensing agent refrigeration strategy and the water curtain humidity control strategy are turned off; Then, according to the humidity difference ΔH2=HA-HB between the corrected humidity value and the preset humidity value, it is determined whether to turn on the air conditioning dehumidification function: If the humidity difference ΔH2 is greater than the preset humidity difference threshold, the air conditioning dehumidification function is turned on and the fan volume is adjusted to 10% to reduce the ambient humidity. If the humidity difference ΔH2 is less than the preset humidity difference threshold, the air conditioning dehumidification function is turned off and the fan volume is adjusted to 10% to maintain the ambient humidity.

[0014] Compared with the prior art, the present invention has the following advantages and beneficial effects: 1. The present invention mainly adopts the water curtain humidity control strategy and the condensing agent refrigeration strategy, supplemented by air conditioning dehumidification and fan air volume adjustment, so as to realize dynamic and stable adjustment of air conditioning temperature and humidity, and has fast adjustment speed, uniform humidity adjustment, low noise, greatly improving the stability and reliability of air conditioning, meeting the needs of places such as farms that require efficient refrigeration and rapid humidity adjustment, and no additional equipment is required, the cost is low, energy saving and consumption reduction are achieved, the practicability is strong, the scope of application is wide, and it is easy to promote.

[0015] 2. The present invention adopts predictive control technology to solve the lag delay effect of temperature / humidity control, calls on a new composite fuzzy PID algorithm to improve the state variable control, and realizes precise control of air conditioning temperature and humidity.

[0016] 3. The present invention uses intelligent feedforward technology to offset the drastic fluctuations in temperature / humidity, and uses the parameters of the gray prediction model to predict temperature / humidity. It can adapt to environmental changes in real time, continuously optimize the control effect, and always maintain high performance and stable operating status. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a flow chart of the method.

[0018] Figure 2 It is a flow chart of the water curtain humidity control strategy of the present invention.

[0019] Figure 3 Flow chart of the refrigerant refrigeration strategy of the present invention.

[0020] Figure 4 It is the prediction flow chart of the grey prediction model in the present invention.

[0021] Figure 5 This is the implementation block diagram of the new composite fuzzy PID algorithm in the present invention.

[0022] Figure 6 It is a schematic diagram of the fuzzy rule table in the present invention.

[0023] Figure 7 It is a schematic diagram of the environmentally controlled air conditioner of the present invention. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] Embodiment 1: like Figures 1 to 6 As shown, this embodiment provides an environmental control air conditioning control method combining water curtain humidity control and condensing agent refrigeration, including the steps of: S1. Obtain the ambient temperature value and the ambient humidity value; specifically, set two groups of temperature sensors, one of which is a main temperature sensor and the other is an auxiliary temperature sensor, collect the ambient temperature value T1 through the main temperature sensor, and collect the ambient temperature value T2 through the auxiliary temperature sensor, and set two groups of humidity sensors at the same time, one of which is a main humidity sensor and the other is an auxiliary humidity sensor, collect the ambient humidity value H1 through the main humidity sensor, and collect the ambient humidity value H2 through the auxiliary humidity sensor.

[0026] S2. Calculate the corrected temperature value according to the ambient temperature value, and calculate the corrected humidity value according to the ambient humidity value; specifically, perform the following operations: If the ambient temperature value T1<Terr, the ambient temperature value T2<Terr, and |T1-T2|≤2℃, then the correction temperature value TjA=(T1+T2) / 2, where Terr is the abnormal temperature value; If the ambient temperature value T1<Terr, and |T1-T2|>2℃, no matter what the ambient temperature value T2 is, the correction temperature value TjA=T1; If the ambient temperature value T1≥Terr, and the ambient temperature value T2<Terr, then the correction temperature value TjA=T2; If the ambient temperature value T1 ≥ Terr, and the ambient temperature value T2 ≥ Terr, then the correction temperature value TjA = Terr.

[0027] If the ambient humidity value H1<Herr, the ambient humidity value H2<Herr, and |H1-H2|≤10%, then the corrected humidity value HjA=(H1+H2) / 2, where Herr is the abnormal humidity value; If the ambient humidity value H1<Herr, and |H1-H2|>10%, no matter what the value of H2 is, the corrected humidity value HjA=H1; If the ambient humidity value H1≥Herr, and the ambient humidity value H2<Herr, then the corrected humidity value HjA=H2; If the ambient humidity value H1≥Herr and the ambient humidity value H2≥Herr, then the corrected humidity value HjA=Herr.

[0028] S3, constructing a grey prediction model and predicting the corrected temperature value and corrected humidity value of the next time period according to the corrected temperature value and corrected humidity value; In order to predict the next corrected temperature / humidity value in advance, the grey prediction model GM (1.1) is introduced. The grey prediction model treats all variables as grey quantities. Based on this theoretical principle, it reveals the relatively complex and discrete inherent laws in the data, making the regularity of the time series data stronger, thereby reducing randomness. The construction process of the grey prediction model GM (1.1) is as follows: The original data recorded is: , The original data includes the current air volume, water volume, time period, corrected temperature value and corrected humidity value. 0 represents the initial original data set, X 0 (n) represents the nth element in the initial raw data, where n is a positive integer; Accumulate the initial original data set to obtain a new time series X 1 : , , Among them, X 0 (i) represents the i-th element in the original raw data, X 1 (n) represents the nth element in the new time series; Formulate a first-order differential equation based on the new time series: , Among them, θ and u are gray parameters; Solving the first-order differential equation yields the corrected temperature value TA and the corrected humidity value HA.

[0029] S4. Compare the corrected temperature value with the preset temperature value. If the corrected temperature value is greater than or equal to the preset temperature value, start the condensing agent cooling strategy before the end of the current time period, close the water curtain humidity control strategy, and call the new composite fuzzy PID algorithm to adjust the fan air volume according to the corrected temperature value and the preset temperature value. Specifically, perform the following operations: If the corrected temperature value TA ≥ the preset temperature value TB, the condensing agent cooling strategy is turned on before the end of the current time period, and the condensing agent cooling function is turned on, and the water curtain humidity control strategy is turned off; In order to better adjust the temperature / humidity, a new composite fuzzy PID algorithm is introduced to control the air volume. Calling the new composite fuzzy PID algorithm control can further reduce the overshoot of the air volume adjustment process and eliminate the measurement delay of the outlet temperature / humidity, and make corrections to the temperature / humidity prediction value in real time.

[0030] The process of using the new composite fuzzy PID algorithm to adjust the fan air volume according to the corrected temperature value and the preset temperature value is as follows: The difference between the corrected temperature value TA and the preset temperature value TB is taken as input, and the difference is processed as an absolute value, and the absolute value of the difference is compared with the preset temperature threshold. If the absolute value of the difference is less than the preset temperature threshold, the PID controller is used to control the processing and output the fan air volume. If the absolute value of the difference is greater than or equal to the preset temperature threshold, the fuzzy controller is used to control the processing and output the fan air volume.

[0031] Among them, the expression of PID controller is: , , , Among them, K p , K i , K dThey are the integral coefficient, proportional coefficient and differential coefficient respectively, e(t) is the input, that is, the difference between the corrected temperature value TA and the preset temperature value TB, G(t) is the output fan air volume, U(t) is the real-time calculated PID output, E(t) is the maximum PID output, and Kpmax is the maximum Kp value.

[0032] The operation process of the fuzzy controller is: set the fuzzy rule table, look up the table according to the actual input, calculate and output the corresponding fan air volume, among which, the setting method of the fuzzy rule table is as follows: take the initial ambient temperature value at startup as the initial value, take the preset temperature value as the maximum value, calculate it as 100 times, the minimum change accuracy = (maximum value - initial value) / 100, the output is designed according to the basic principle of increasing first and then decreasing (it can be adjusted based on the test effect data in actual application), the serial number of the fuzzy rule table = actual input / minimum change accuracy, and the difference between the corrected temperature value TA and the preset temperature value TB is the actual input.

[0033] S5. If the corrected temperature value is less than the preset temperature value, then compare the corrected humidity value with the preset humidity value. If the corrected humidity value is less than or equal to the preset humidity value, then turn off the condensing agent refrigeration strategy before the end of the current time period, turn on the water curtain humidity control strategy, and dynamically adjust the water curtain water volume according to the preset humidity value and the corrected humidity value, and call the new composite fuzzy PID algorithm to adjust the fan air volume according to the corrected humidity value and the preset humidity value; if the corrected humidity value is greater than the preset humidity value, turn off the condensing agent refrigeration strategy and the water curtain humidity control strategy, and then determine whether to turn on the air conditioning dehumidification function according to the difference between the corrected humidity value and the preset humidity value; perform the following operations specifically, If the corrected temperature value TA is less than the preset temperature value TB, and the corrected humidity value HA is less than or equal to the preset humidity value HB, the condensing agent cooling strategy is turned off before the end of the current time period, the water curtain humidity control strategy is turned on, and the condensing agent cooling function is turned off; The process of dynamically adjusting the water volume of the water curtain according to the humidity difference ΔH1=HB-HA between the preset humidity value and the corrected humidity value is as follows: If the humidity difference ΔH1 ≤ the first humidity difference threshold, the water volume of the water curtain is adjusted to 0 water volume, that is, the water volume is level 0; If the humidity difference ΔH1> the first humidity difference threshold and ΔH1< the second humidity difference threshold, the water volume of the water curtain is adjusted to the first water volume, i.e., water volume level 1; If the humidity difference ΔH1 ≥ the second humidity difference threshold and ΔH1 < the third humidity difference threshold, the water volume of the water curtain is adjusted to the second water volume, that is, the water volume level 2; If the humidity difference ΔH1 ≥ the third humidity difference threshold and ΔH1 < the fourth humidity difference threshold, the water volume of the water curtain is adjusted to the third water volume, i.e., the water volume level 3; If the humidity difference ΔH1 ≥ the fourth humidity difference threshold and ΔH1 < the fifth humidity difference threshold, the water volume of the water curtain is adjusted to the fourth water volume, that is, the water volume level 4; If the humidity difference ΔH1 ≥ the fifth humidity difference threshold and ΔH1 < the sixth humidity difference threshold, the water volume of the water curtain is adjusted to the fifth water volume, i.e., the water volume level 5; If the humidity difference ΔH1 ≥ the sixth humidity difference threshold, the water volume of the water curtain is adjusted to the sixth water volume, i.e., the water volume level 6; Among them, the first humidity difference threshold < the second humidity difference threshold < the third humidity difference threshold < the fourth humidity difference threshold < the fifth humidity difference threshold < the sixth humidity difference threshold, 0 water volume < the first water volume < the second water volume < the third water volume < the fourth water volume < the fifth water volume < the sixth water volume. In this embodiment, the first humidity difference threshold = 0%, the second humidity difference threshold = 5%, the third humidity difference threshold = 10%, the fourth humidity difference threshold = 15%, the fifth humidity difference threshold = 20%, the sixth humidity difference threshold = 25%, 0 water volume = 0%, the first water volume = 20%, the second water volume = 40%, the third water volume = 60%, the fourth water volume = 80%, the fifth water volume = 90%, and the sixth water volume = 100%.

[0034] The process of using the new composite fuzzy PID algorithm to adjust the fan air volume according to the corrected humidity value and the preset humidity value is as follows: The difference between the corrected humidity value HA and the preset humidity value HB is taken as input, and the difference is processed as an absolute value. The absolute value of the difference is compared with the preset humidity threshold. If the absolute value of the difference is less than the preset humidity threshold, the PID controller is used to control the processing and output the fan air volume. If the absolute value of the difference is greater than or equal to the preset humidity threshold, the fuzzy controller is used to control the processing and output the fan air volume.

[0035] Among them, the expression of PID controller is: , , , Among them, K p , K i , K d They are the integral coefficient, proportional coefficient and differential coefficient respectively, e(t) is the input, that is, the difference between the corrected humidity value HA and the preset humidity value HB, G(t) is the output fan air volume, U(t) is the real-time calculated PID output, E(t) is the maximum PID output, and Kpmax is the maximum Kp value.

[0036] The operation process of the fuzzy controller is: set the fuzzy rule table, look up the table according to the actual input, calculate and output the corresponding fan air volume, among which, the setting method of the fuzzy rule table is as follows: the initial ambient humidity value at the time of startup is the initial value, the preset humidity value is the maximum value, and it is calculated as 100 parts. The minimum change accuracy = (maximum value-initial value) / 100, and the output is designed according to the basic principle of increasing first and then decreasing (it can be adjusted based on the test effect data in actual application), the serial number of the fuzzy rule table = actual input / minimum change accuracy, and the difference between the corrected humidity value HA and the preset humidity value HB is the actual input.

[0037] If the corrected temperature value TA is less than the preset temperature value TB, and the corrected humidity value HA is greater than the preset humidity value HB, the condensing agent refrigeration strategy and the water curtain humidity control strategy are turned off; Then, according to the humidity difference ΔH2=HA-HB between the corrected humidity value and the preset humidity value, it is determined whether to turn on the air conditioning dehumidification function: If the humidity difference ΔH2 is greater than the preset humidity difference threshold, the air conditioning dehumidification function is turned on and the fan volume is adjusted to 10% to reduce the ambient humidity. If the humidity difference ΔH2 is less than the preset humidity difference threshold, the air conditioning dehumidification function is turned off and the fan volume is adjusted to 10% to maintain the ambient humidity. In this embodiment, the preset humidity difference threshold = 5%.

[0038] S6. If the corrected temperature value or the corrected humidity value is an abnormal value, the error prevention process is started and the condensing agent refrigeration strategy, the water curtain humidity control strategy, the fan air volume and the air conditioning dehumidification function are forcibly turned off; S7. After a time period, the process returns to execute the operation of obtaining the ambient temperature value and the ambient humidity value. In this embodiment, the default time period Tu=5S.

[0039] Compared with the pure fuzzy controller algorithm, the present invention greatly shortens the response time and speeds up the system reaction speed. Compared with the traditional PID algorithm, the problem of large overshoot that has always existed in the traditional algorithm is improved. The new composite fuzzy PID algorithm is more flexible and more suitable for temperature / humidity adjustment systems.

[0040] Embodiment 2: like Figure 7 As shown, this embodiment provides an environmentally controlled air conditioner, including: Temperature sensor, used to obtain the ambient temperature value; Humidity sensor, used to obtain the ambient humidity value; A main control system includes a processor and a memory storing program instructions. The processor is configured to execute the environmental control air conditioning control method combining water curtain humidification and condensing agent refrigeration described in Example 1 when executing the program instructions. It receives and processes ambient temperature values ​​and ambient humidity values, and generates and outputs control instructions for a dehumidification module, a condenser, a water curtain humidification valve and a fan based on the environmental control air conditioning control method combining water curtain humidification and condensing agent refrigeration; the control strategy of the main control system is specifically as follows: the condensing agent refrigeration strategy output is set to U1, air volume Uf1, water volume Uw1, and a preset time period Tu; the water curtain humidification control strategy is set to U2, air volume Uf2, water volume Uw2, and a preset time period Tu; the main control system total control output U=W1*U1+W2*U2, wherein W1 and W2 are weight coefficients, and the on and off effects can be achieved by setting W1 and W2 to 0% and 100% respectively. The condensing agent refrigeration strategy output is U1=Uf1*Tu+Uw1*Tu, and the water curtain humidity control strategy is U2=Uf2*Tu+Uw2*Tu. It can be used for control purposes and can also be used to evaluate the effectiveness of system operation.

[0041] A dehumidification module, used to dehumidify to adjust the humidity according to the instructions of the main control system; The condenser is used to refrigerate and adjust the temperature according to the instructions of the main control system; Water curtain humidity control valve, used to adjust the water volume of the water curtain to adjust the humidity according to the instructions of the main control system; The fan is used to dynamically adjust the air volume according to the instructions of the main control system to quickly adjust the temperature and humidity.

[0042] The above is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and invention concept of the present invention within the scope disclosed by the present invention, which shall fall within the protection scope of the present invention.

Claims

1. A method for controlling an environmental air conditioner by combining water curtain humidity control and condensing agent refrigeration, characterized in that: Including steps, Get the ambient temperature and humidity values ​​within the current time period; Calculate the corrected temperature value according to the ambient temperature value, and calculate the corrected humidity value according to the ambient humidity value; Constructing a grey prediction model and predicting the corrected temperature value and corrected humidity value of the next time period according to the corrected temperature value and corrected humidity value; Compare the corrected temperature value with the preset temperature value. If the corrected temperature value is greater than or equal to the preset temperature value, start the condensing agent cooling strategy before the end of the current time period, close the water curtain humidity control strategy, and call the new composite fuzzy PID algorithm to adjust the fan air volume according to the corrected temperature value and the preset temperature value. If the corrected temperature value is less than the preset temperature value, then compare the corrected humidity value with the preset humidity value. If the corrected humidity value is less than or equal to the preset humidity value, then turn off the condensing agent refrigeration strategy before the end of the current time period, turn on the water curtain humidity control strategy, and dynamically adjust the water curtain water volume according to the preset humidity value and the corrected humidity value. Call the new composite fuzzy PID algorithm to adjust the fan air volume according to the corrected humidity value and the preset humidity value. If the corrected humidity value is greater than the preset humidity value, the condensing agent refrigeration strategy and the water curtain humidity control strategy are turned off, and then the air conditioning dehumidification function is determined based on the difference between the corrected humidity value and the preset humidity value. If the corrected temperature value or the corrected humidity value is an abnormal value, the error prevention process is started and the condensing agent refrigeration strategy, the water curtain humidity control strategy, the fan air volume and the air conditioning dehumidification function are forcibly shut down; After a time period, the operation of obtaining the ambient temperature and humidity is returned.

2. The environmental air conditioning control method combining water curtain humidity control and condensing agent refrigeration according to claim 1 is characterized in that: The ambient temperature value T1 and the ambient temperature value T2 are collected by two groups of temperature sensors, and the ambient humidity value H1 and the ambient humidity value H2 are collected by two groups of humidity sensors.

3. The environmental air conditioning control method combining water curtain humidity control and condensing agent refrigeration according to claim 1 is characterized in that: Calculate the corrected temperature value according to the ambient temperature value, and calculate the corrected humidity value according to the ambient humidity value. Specifically, perform the following operations: If the ambient temperature value T1<Terr, the ambient temperature value T2<Terr, and |T1-T2|≤2℃, then the correction temperature value TjA=(T1+T2) / 2, where Terr is the abnormal temperature value; If the ambient temperature value T1<Terr, and |T1-T2|>2℃, no matter what the ambient temperature value T2 is, the correction temperature value TjA=T1; If the ambient temperature value T1≥Terr, and the ambient temperature value T2<Terr, then the correction temperature value TjA=T2; If the ambient temperature value T1≥Terr, the ambient temperature value T2≥Terr, then the correction temperature value TjA=Terr; If the ambient humidity value H1<Herr, the ambient humidity value H2<Herr, and |H1-H2|≤10%, then the corrected humidity value HjA=(H1+H2) / 2, where Herr is the abnormal humidity value; If the ambient humidity value H1<Herr, and |H1-H2|>10%, no matter what the value of H2 is, the corrected humidity value HjA=H1; If the ambient humidity value H1≥Herr, and the ambient humidity value H2<Herr, then the corrected humidity value HjA=H2; If the ambient humidity value H1≥Herr and the ambient humidity value H2≥Herr, then the corrected humidity value HjA=Herr.

4. The environmental air conditioning control method combining water curtain humidity control and condensing agent refrigeration according to claim 1 is characterized in that: The construction process of the grey prediction model is as follows: The original data recorded is: ， The original data includes the current air volume, water volume, time period, corrected temperature value and corrected humidity value. 0 represents the initial original data set, X 0 (n) represents the nth element in the initial raw data, where n is a positive integer; Accumulate the initial original data set to obtain a new time series X 1 : ， ， Among them, X 0 (i) represents the i-th element in the original raw data, X 1 (n) represents the nth element in the new time series; Formulate a first-order differential equation based on the new time series: ， Among them, θ and u are gray parameters; Solving the first-order differential equation yields the corrected temperature value TA and the corrected humidity value HA.

5. The environmental air conditioning control method combining water curtain humidity control and condensing agent refrigeration according to claim 1 is characterized in that: The new composite fuzzy PID algorithm is called according to the corrected temperature value and the preset temperature value to adjust the fan air volume. The following operations are performed specifically: The difference between the corrected temperature value TA and the preset temperature value TB is taken as input, and the difference is processed as an absolute value, and the absolute value of the difference is compared with the preset temperature threshold. If the absolute value of the difference is less than the preset temperature threshold, the PID controller is used to control the processing and output the fan air volume. If the absolute value of the difference is greater than or equal to the preset temperature threshold, the fuzzy controller is used to control the processing and output the fan air volume.

6. The environmental air conditioning control method combining water curtain humidity control and condensing agent refrigeration according to claim 1 is characterized in that: Dynamically adjust the water volume of the water curtain according to the preset humidity value and the corrected humidity value. The following operations are performed specifically: Dynamically adjust the water volume of the water curtain according to the humidity difference ΔH1=HB-HA between the preset humidity value and the corrected humidity value; If the humidity difference ΔH1 ≤ the first humidity difference threshold, the water volume of the water curtain is adjusted to 0 water volume; If the humidity difference ΔH1> the first humidity difference threshold and ΔH1< the second humidity difference threshold, the water volume of the water curtain is adjusted to the first water volume; If the humidity difference ΔH1 ≥ the second humidity difference threshold and ΔH1 < the third humidity difference threshold, the water volume of the water curtain is adjusted to the second water volume; If the humidity difference ΔH1 ≥ the third humidity difference threshold and ΔH1 < the fourth humidity difference threshold, the water volume of the water curtain is adjusted to the third water volume; If the humidity difference ΔH1 ≥ the fourth humidity difference threshold and ΔH1 < the fifth humidity difference threshold, the water volume of the water curtain is adjusted to the fourth water volume; If the humidity difference ΔH1 ≥ the fifth humidity difference threshold and ΔH1 < the sixth humidity difference threshold, the water volume of the water curtain is adjusted to the fifth water volume; If the humidity difference ΔH1 ≥ the sixth humidity difference threshold, the water volume of the water curtain is adjusted to the sixth water volume; Among them, the first humidity difference threshold < the second humidity difference threshold < the third humidity difference threshold < the fourth humidity difference threshold < the fifth humidity difference threshold < the sixth humidity difference threshold, and 0 water volume < the first water volume < the second water volume < the third water volume < the fourth water volume < the fifth water volume < the sixth water volume.

7. The environmental air conditioning control method combining water curtain humidity control and condensing agent refrigeration according to claim 1 is characterized in that: The new composite fuzzy PID algorithm is called according to the corrected humidity value and the preset humidity value to adjust the fan air volume. The following operations are performed specifically: The difference between the corrected humidity value HA and the preset humidity value HB is taken as input, and the difference is processed as an absolute value. The absolute value of the difference is compared with the preset humidity threshold. If the absolute value of the difference is less than the preset humidity threshold, the PID controller is used to control the processing and output the fan air volume. If the absolute value of the difference is greater than or equal to the preset humidity threshold, the fuzzy controller is used to control the processing and output the fan air volume.

8. The environmental air conditioning control method combining water curtain humidity control and condensing agent refrigeration according to claim 5 or 7, characterized in that: The expression of the PID controller is: ， ， ， Among them, K p , K i , K d are the integral coefficient, proportional coefficient and differential coefficient respectively, e(t) is the input, i.e. the difference between the corrected temperature value TA and the preset temperature value TB or the difference between the corrected humidity value HA and the preset humidity value HB, G(t) is the output fan air volume, U(t) is the real-time calculated PID output, E(t) is the maximum PID output, and Kpmax is the maximum Kp value.

9. The environmental air conditioning control method combining water curtain humidity control and condensing agent refrigeration according to claim 5 or 7, characterized in that: The operation process of the fuzzy controller is: setting a fuzzy rule table, looking up the table according to the actual input, calculating and outputting the corresponding fan air volume, wherein the setting method of the fuzzy rule table is as follows: taking the initial ambient temperature value or ambient humidity value at startup as the initial value, taking the preset temperature value or preset humidity value as the maximum value, calculating by 100 parts, the minimum change accuracy = (maximum value - initial value) / 100, the output is designed according to the basic principle mode of increasing first and then decreasing, the serial number of the fuzzy rule table = actual input / minimum change accuracy, the difference between the corrected temperature value TA and the preset temperature value TB or the difference between the corrected humidity value HA and the preset humidity value HB is the actual input.

10. The environmental air conditioning control method combining water curtain humidity control and condensing agent refrigeration according to claim 1, characterized in that: If the corrected humidity value is greater than the preset humidity value, the condenser cooling strategy and the water curtain humidity control strategy are turned off, and then the difference between the corrected humidity value and the preset humidity value is used to determine whether to turn on the air conditioning dehumidification function. The following operations are performed specifically: If the corrected temperature value TA is less than the preset temperature value TB, and the corrected humidity value HA is greater than the preset humidity value HB, the condensing agent cooling strategy and the water curtain humidity control strategy are turned off; Then, according to the humidity difference ΔH2=HA-HB between the corrected humidity value and the preset humidity value, it is determined whether to turn on the air conditioning dehumidification function: If the humidity difference ΔH2 is greater than the preset humidity difference threshold, the air conditioning dehumidification function is turned on and the fan volume is adjusted to 10% to reduce the ambient humidity. If the humidity difference ΔH2 is less than the preset humidity difference threshold, the air conditioning dehumidification function is turned off and the fan volume is adjusted to 10% to maintain the ambient humidity.

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