Fluorine pump air conditioner control method

Abstract

The invention relates to the technical field of fluorine pump air conditioners, in particular to a fluorine pump air conditioner control method which comprises the following steps that air quality data and climate monitoring data are analyzed, and a mode switching coefficient, a first mode switching coefficient threshold value and a second mode switching coefficient value are obtained respectively; calculating a real-time total heat transfer temperature difference based on the processed data, defining a total heat transfer temperature difference target value, and judging the running state of the fluorine pump air conditioner; switching the working modes of the fluorine pump air conditioner according to the mode switching analysis data; optimizing the control parameters by adopting multi-objective optimization; refrigerating capacity parameters and energy consumption parameters of the fluorine pump air conditioner in multiple working modes are obtained, and a first operation relation and a second operation relation are established according to the indoor environment data and the outdoor environment data; the problems that an existing fluorine pump air conditioner control method is poor in control effect and wastes energy are solved, flexibility and high efficiency of air conditioner mode switching are achieved, and the intelligence level and the energy-saving effect of a fluorine pump air conditioner are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of fluorine pump air conditioners, and in particular to a fluorine pump air conditioner control method. Background Art

[0002] A fluorine pump air conditioner uses Freon as its working medium. A fluorine pump drives the Freon through the system, achieving cooling or heating. Compared to traditional compressor-driven air conditioning systems, fluorine pump air conditioners offer higher energy efficiency and lower noise levels, making them particularly suitable for use in environments requiring low-noise operation, such as hospitals and libraries.

[0003] At present, fluorine pump technology has been applied to the data center field, adopting three operating modes: compressor mode, mixed mode and fluorine pump mode, and switching the operating mode in time according to the difference in indoor and outdoor ambient temperature.

[0004] However, some of the existing fluorine pump air conditioning control methods only perform simple adjustments based on the indoor temperature, without fully considering changes in the outdoor environment and the operating status of the equipment, resulting in inflexible switching of operating modes and inability to accurately control according to actual conditions, causing energy waste. Summary of the Invention

[0005] The purpose of the present invention is to provide a fluorine pump air conditioning control method, which aims to solve the technical problem that some control methods in the existing fluorine pump air conditioning control methods only perform simple adjustments based on the indoor temperature, do not fully consider the changes in the outdoor environment and the operating status of the equipment, resulting in inflexible switching of operating modes, and cannot be accurately controlled according to actual conditions, resulting in energy waste.

[0006] To achieve the above object, the present invention adopts a fluorine pump air conditioner control method, comprising the following steps:

[0007] Install monitoring equipment indoors and outdoors to collect data and obtain air quality data and climate monitoring data;

[0008] Collect fluorine pump air conditioner operation data, pre-process it and remove abnormal data;

[0009] Analyze air quality data and climate monitoring data to obtain a mode switching coefficient, a first mode switching coefficient threshold, and a second mode switching coefficient value, respectively, to obtain mode switching analysis data;

[0010] Calculate the real-time total heat transfer temperature difference based on the processed data, define the total heat transfer temperature difference target value, and compare it with the real-time total heat transfer temperature difference to determine the operating status of the fluorine pump air conditioner;

[0011] According to the mode switching analysis data, the working mode of the fluorine pump air conditioner is switched, and the working modes include cooling mode, energy-saving mode and mixed mode;

[0012] Based on the total heat transfer temperature difference target value and pre-processed data, the compressor frequency control parameters, fan speed control parameters, and expansion valve opening control parameters are dynamically adjusted, and multi-objective optimization is used to optimize the control parameters to achieve a balance between cooling effect and energy consumption;

[0013] Through multi-level PID control, the fluorine pump frequency is accurately regulated based on the pressure difference and current and voltage deviation;

[0014] Obtaining cooling capacity parameters and energy consumption parameters of the fluorine pump air conditioner in multiple operating modes, establishing a first operating relationship based on indoor environmental data, the cooling capacity parameters and energy consumption parameters in the multiple operating modes, and establishing a second operating relationship based on outdoor environmental data, the cooling capacity parameters and energy consumption parameters in the multiple operating modes;

[0015] Based on the cooling capacity parameters and energy consumption parameters under multiple working modes, the first operating relationship and the second operating relationship, an energy-saving operation control strategy for the fluorine pump air conditioner is determined.

[0016] Among them, the steps of installing monitoring equipment indoors and outdoors to collect data and obtain air quality data and climate monitoring data are:

[0017] Install air quality sensors, temperature sensors, and humidity sensors indoors and outdoors for data collection;

[0018] Obtain indoor air quality coefficient and outdoor air quality coefficient to obtain air quality data;

[0019] Obtain indoor temperature coefficient and indoor humidity coefficient to obtain climate monitoring data.

[0020] Among them, in the step of obtaining the indoor air quality coefficient and the outdoor air quality coefficient to obtain air quality data:

[0021] The indoor air quality coefficient includes the pollutant concentrations of PM2.5, PM10 and formaldehyde.

[0022] Among them, in the step of collecting the fluorine pump air conditioner operation data, pre-processing it, and removing abnormal data:

[0023] The operating data of the fluorine pump air conditioner includes compressor frequency, fan speed, expansion valve opening, fluorine pump inlet and outlet pressure and temperature.

[0024] Among them, in the step of calculating the real-time total heat transfer temperature difference based on the processed data, defining the total heat transfer temperature difference target value, and comparing it with the real-time total heat transfer temperature difference to judge the operating status of the fluorine pump air conditioner:

[0025] If the real-time total heat transfer temperature difference is greater than the target value, it means that the cooling effect is poor and the equipment operating parameters need to be adjusted.

[0026] In the step of switching the working mode of the fluorine pump air conditioner according to the mode switching analysis data, the working mode includes a cooling mode, an energy-saving mode and a mixed mode:

[0027] When the outdoor air quality is good and the temperature is suitable, the energy-saving mode is switched to, and the natural cold source is used to reduce energy consumption.

[0028] In the step of dynamically adjusting the compressor frequency control parameter, the fan speed control parameter and the expansion valve opening control parameter based on the total heat transfer temperature difference target value and the preprocessed data, and optimizing the control parameters by multi-objective optimization to balance the refrigeration effect and energy consumption:

[0029] When the total heat transfer temperature difference is large, the compressor frequency and the fan speed are appropriately increased, and the expansion valve opening is increased, and when the total heat transfer temperature difference is small, the corresponding parameters are reduced to save energy.

[0030] In the step of accurately regulating the fluorine pump frequency based on the pressure difference and the current and voltage deviation by multi-stage PID control:

[0031] The fluorine pump air conditioner operation data is collected, the inlet pressure and the outlet pressure are obtained, and the real-time pressure difference is calculated;

[0032] The target pressure difference is called, the difference between the target pressure difference and the real-time pressure difference is calculated, and PID operation is performed according to the difference to obtain a first target speed;

[0033] The target output voltage and the target output current are called according to the first target speed, the real-time output voltage or the real-time output current is sampled, and the voltage deviation and the current deviation are calculated;

[0034] Based on the voltage deviation and the current deviation, PID control is performed again to adjust the real-time output voltage and the real-time output current to the target output current, and the fluorine pump frequency is accurately controlled.

[0035] In the step of determining the energy-saving operation control strategy for the fluorine pump air conditioner based on the refrigerating capacity parameters and the energy consumption parameters under multiple working modes, the first operation relationship and the second operation relationship:

[0036] Under different indoor and outdoor environmental conditions, the most energy-saving working mode and equipment operation parameter combination are selected.

[0037] A fluorine pump air conditioner control method of the present invention first installs monitoring equipment indoors and outdoors to collect data, obtains air quality data and climate monitoring data, collects fluorine pump air conditioner operation data, performs preprocessing, removes abnormal data, then analyzes the air quality data and climate monitoring data, obtains a mode switching coefficient, a first mode switching coefficient threshold value, and a second mode switching coefficient value, respectively, obtains mode switching analysis data, then calculates a real-time total heat transfer temperature difference based on the processed data, defines a total heat transfer temperature difference target value, and compares it with the real-time total heat transfer temperature difference to judge the operating state of the fluorine pump air conditioner, switches the working mode of the fluorine pump air conditioner according to the mode switching analysis data, and the working modes include cooling mode, energy-saving mode, and mixed mode. Based on the total heat transfer temperature difference target value and the preprocessed data, dynamically adjusts the compressor frequency control parameter, the fan speed control parameter, and the expansion valve opening control parameter , and multi-objective optimization is used to optimize the control parameters to achieve a balance between cooling effect and energy consumption, and then through multi-stage PID control, the fluorine pump frequency is accurately regulated based on the pressure difference and current and voltage deviation, and then the cooling capacity parameters and energy consumption parameters of the fluorine pump air conditioner in various working modes are obtained. According to the indoor environmental data, the cooling capacity parameters and energy consumption parameters in various working modes, a first operating relationship is established, and according to the outdoor environmental data, the cooling capacity parameters and energy consumption parameters in various working modes, a second operating relationship is established. Finally, based on the cooling capacity parameters and energy consumption parameters in various working modes, the first operating relationship and the second operating relationship, the energy-saving operation control strategy of the fluorine pump air conditioner is determined. Through the above method, the problems of poor control effect and energy waste of the existing fluorine pump air conditioner control method are solved, the flexibility and efficiency of air conditioning mode switching are achieved, and the intelligence level and energy-saving effect of the fluorine pump air conditioner are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0039] Figure 1 It is a flow chart of the steps of the fluorine pump air conditioner control method of the present invention.

[0040] Figure 2 It is a step flow chart of S100 of the present invention.

[0041] Figure 3 It is a step flow chart of S700 of the present invention.

[0042] Figure 4 It is a structural principle diagram of the fluorine pump air conditioning control method of the present invention. DETAILED DESCRIPTION

[0043] Exemplary embodiments are described in detail herein, with examples illustrated in the accompanying drawings. When the following description refers to the drawings, identical numerals in different drawings represent identical or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with this application.

[0044] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. As used in this application and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0045] It should be understood that although the terms first, second, third, etc. may be used in this application to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0046] See also Figures 1 to 4 The present invention provides a fluorine pump air conditioner control method, comprising the following steps:

[0047] S100: Install monitoring equipment indoors and outdoors to collect data and obtain air quality data and climate monitoring data;

[0048] S200: Collecting the fluorine pump air conditioner operation data, and pre-processing it to remove abnormal data;

[0049] S300: Analyze air quality data and climate monitoring data to obtain a mode switching coefficient, a first mode switching coefficient threshold, and a second mode switching coefficient value, respectively, to obtain mode switching analysis data;

[0050] S400: Calculate the real-time total heat transfer temperature difference based on the processed data, define the total heat transfer temperature difference target value, and compare it with the real-time total heat transfer temperature difference to determine the operating status of the fluorine pump air conditioner;

[0051] S500: switching the working mode of the fluorine pump air conditioner according to the mode switching analysis data, the working modes including cooling mode, energy-saving mode and mixed mode;

[0052] S600: Based on the total heat transfer temperature difference target value and preprocessed data, it dynamically adjusts the compressor frequency control parameters, fan speed control parameters, and expansion valve opening control parameters. It also uses multi-objective optimization to optimize these control parameters to achieve a balance between cooling effect and energy consumption.

[0053] S700: Through multi-stage PID control, the fluorine pump frequency is precisely controlled based on the pressure difference and current and voltage deviation;

[0054] S800: Acquire cooling capacity parameters and energy consumption parameters of the fluorine pump air conditioner in multiple operating modes, establish a first operating relationship based on indoor environmental data, the cooling capacity parameters and energy consumption parameters in the multiple operating modes, and establish a second operating relationship based on outdoor environmental data, the cooling capacity parameters and energy consumption parameters in the multiple operating modes;

[0055] S900: Determine an energy-saving operation control strategy for the fluorine pump air conditioner based on cooling capacity parameters and energy consumption parameters under multiple operating modes, the first operating relationship, and the second operating relationship.

[0056] In this embodiment, monitoring equipment is first installed indoors and outdoors to collect data, obtain air quality data (pollutant concentrations of PM2.5, PM10 and formaldehyde) and climate monitoring data, collect fluorine pump air conditioner operation data (compressor frequency, fan speed, expansion valve opening, fluorine pump inlet and outlet pressure and temperature), and preprocess to remove abnormal data. Then, the air quality data and climate monitoring data are analyzed, and the mode switching coefficient, the first mode switching coefficient threshold and the second mode switching coefficient value are obtained respectively to obtain mode switching analysis data. Then, based on the processed data, the real-time total heat transfer temperature difference is calculated, the total heat transfer temperature difference target value is defined, and compared with the real-time total heat transfer temperature difference to judge the operating status of the fluorine pump air conditioner. If the real-time total heat transfer temperature difference is greater than the target value, it means that the cooling effect is not good and the equipment operating parameters need to be adjusted. The working mode of the fluorine pump air conditioner is switched according to the mode switching analysis data. The working mode includes cooling mode, energy-saving mode and mixed mode. When the outdoor air quality is good and the temperature is suitable, switch to energy-saving mode, use natural cold source to reduce energy consumption, and dynamically adjust the pressure based on the total heat transfer temperature difference target value and the preprocessed data. The compressor frequency control parameters, fan speed control parameters and expansion valve opening control parameters are optimized by multi-objective optimization to achieve a balance between cooling effect and energy consumption. When the total heat transfer temperature difference is large, the compressor frequency and fan speed are appropriately increased, and the expansion valve opening is increased. When the total heat transfer temperature difference is small, the corresponding parameters are reduced to save energy. Then, through multi-stage PID control, the fluorine pump frequency is accurately regulated based on the pressure difference and the current and voltage deviations. Subsequently, the cooling capacity parameters and energy consumption parameters of the fluorine pump air conditioner in various working modes are obtained. According to the indoor environmental data, the cooling capacity parameters and energy consumption parameters in various working modes, a first operating relationship is established. According to the outdoor environmental data, the cooling capacity parameters and energy consumption parameters in various working modes, a second operating relationship is established. Finally, based on the cooling capacity parameters and energy consumption parameters in various working modes, the first operating relationship and the second operating relationship, the energy-saving operation control strategy of the fluorine pump air conditioner is determined. Through the above method, the problems of poor control effect and energy waste of the existing fluorine pump air conditioner control method are solved, the flexibility and efficiency of air conditioning mode switching are achieved, and the intelligence level and energy-saving effect of the fluorine pump air conditioner are improved.

[0057] Furthermore, in the steps of installing monitoring equipment indoors and outdoors to collect data and obtain air quality data and climate monitoring data:

[0058] S101: Install air quality sensors, temperature sensors, and humidity sensors indoors and outdoors to collect data;

[0059] S102: Obtaining an indoor air quality coefficient and an outdoor air quality coefficient to obtain air quality data;

[0060] S103: Acquire indoor temperature coefficient and indoor humidity coefficient to obtain climate monitoring data.

[0061] In this embodiment, the indoor air quality coefficient (such as the concentration of pollutants such as PM2.5, PM10, and formaldehyde) and the outdoor air quality coefficient are obtained respectively to obtain air quality data; at the same time, the indoor temperature coefficient and the indoor humidity coefficient are obtained respectively to obtain climate monitoring data, wherein data collection is performed through air quality sensors, temperature sensors, and humidity sensors installed indoors and outdoors.

[0062] Furthermore, in the step of precisely regulating the fluorine pump frequency based on the pressure difference and the current and voltage deviations through multi-stage PID control:

[0063] S701: Collect fluorine pump air conditioning operation data, obtain inlet pressure and outlet pressure, and calculate real-time pressure difference;

[0064] S702: calling the target pressure difference, calculating the difference between the target pressure difference and the real-time pressure difference, and performing a PID operation based on the difference to obtain a first target speed;

[0065] S703: Calling the target output voltage and the target output current according to the first target speed, sampling the real-time output voltage or the real-time output current, and calculating the voltage deviation and the current deviation;

[0066] S704: PID control is performed again based on the voltage deviation and the current deviation to adjust the real-time output voltage and the real-time output current to the target output current, and the fluorine pump frequency is accurately controlled.

[0067] In this embodiment, by collecting the operating data of the fluorine pump air conditioner, obtaining the inlet pressure and outlet pressure, calculating the real-time pressure difference, then calling the target pressure difference, calculating the difference between the target pressure difference and the real-time pressure difference, and performing PID operation based on the difference to obtain the first target speed, then calling the target output voltage and target output current based on the first target speed, and then sampling the real-time output voltage and real-time output current, calculating the voltage deviation and current deviation, and finally performing PID control again based on the voltage deviation and current deviation, adjusting the real-time output voltage and real-time output current to the target output current, thereby accurately controlling the fluorine pump frequency.

[0068] Those skilled in the art will readily conceive of other embodiments of the present application after considering the specification and practicing the contents disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present application that follow the general principles of this application and include common knowledge or customary techniques in the art that are not disclosed in this application.

[0069] It will be understood that the present application is not limited to the exact construction that has been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof.

Claims

1. A fluorine pump air conditioning control method, characterized in that: The steps include: Install monitoring equipment indoors and outdoors to collect data and obtain air quality data and climate monitoring data; Collect fluorine pump air conditioner operation data, pre-process it and remove abnormal data; Analyze air quality data and climate monitoring data to obtain a mode switching coefficient, a first mode switching coefficient threshold, and a second mode switching coefficient value, respectively, to obtain mode switching analysis data; Calculate the real-time total heat transfer temperature difference based on the processed data, define the total heat transfer temperature difference target value, and compare it with the real-time total heat transfer temperature difference to determine the operating status of the fluorine pump air conditioner; According to the mode switching analysis data, the working mode of the fluorine pump air conditioner is switched, and the working modes include cooling mode, energy-saving mode and mixed mode; Based on the total heat transfer temperature difference target value and pre-processed data, the compressor frequency control parameters, fan speed control parameters, and expansion valve opening control parameters are dynamically adjusted, and multi-objective optimization is used to optimize the control parameters to achieve a balance between cooling effect and energy consumption; Through multi-level PID control, the fluorine pump frequency is accurately regulated based on the pressure difference and current and voltage deviation; Obtaining cooling capacity parameters and energy consumption parameters of the fluorine pump air conditioner in multiple operating modes, establishing a first operating relationship based on indoor environmental data, the cooling capacity parameters and energy consumption parameters in the multiple operating modes, and establishing a second operating relationship based on outdoor environmental data, the cooling capacity parameters and energy consumption parameters in the multiple operating modes; Based on the cooling capacity parameters and energy consumption parameters under multiple working modes, the first operating relationship and the second operating relationship, an energy-saving operation control strategy for the fluorine pump air conditioner is determined.

2. The fluorine pump air conditioner control method according to claim 1, characterized in that: Install monitoring equipment indoors and outdoors to collect data and obtain air quality data and climate monitoring data: Install air quality sensors, temperature sensors, and humidity sensors indoors and outdoors for data collection; Obtain indoor air quality coefficient and outdoor air quality coefficient to obtain air quality data; Obtain indoor temperature coefficient and indoor humidity coefficient to obtain climate monitoring data.

3. The fluorine pump air conditioner control method according to claim 2, characterized in that: In the steps of obtaining the indoor air quality coefficient and the outdoor air quality coefficient and obtaining the air quality data: The indoor air quality coefficient includes the pollutant concentrations of PM2.5, PM10 and formaldehyde.

4. The fluorine pump air conditioner control method according to claim 3, characterized in that: In the steps of collecting fluorine pump air conditioner operation data, preprocessing it, and removing abnormal data: The operating data of the fluorine pump air conditioner includes compressor frequency, fan speed, expansion valve opening, fluorine pump inlet and outlet pressure and temperature.

5. The fluorine pump air conditioner control method according to claim 4, characterized in that: In the step of calculating the real-time total heat transfer temperature difference based on the processed data, defining the total heat transfer temperature difference target value, and comparing it with the real-time total heat transfer temperature difference to determine the operating status of the fluorine pump air conditioner: If the real-time total heat transfer temperature difference is greater than the target value, it means that the cooling effect is poor and the equipment operating parameters need to be adjusted.

6. The fluorine pump air conditioner control method according to claim 5, characterized in that: In the step of switching the working mode of the fluorine pump air conditioner according to the mode switching analysis data, the working modes include cooling mode, energy-saving mode and mixed mode: When the outdoor air quality is good and the temperature is suitable, switch to energy-saving mode and use natural cooling sources to reduce energy consumption.

7. The fluorine pump air conditioner control method according to claim 6, characterized in that: Based on the total heat transfer temperature difference target value and pre-processed data, the compressor frequency control parameters, fan speed control parameters, and expansion valve opening control parameters are dynamically adjusted, and multi-objective optimization is used to optimize the control parameters to achieve a balance between cooling effect and energy consumption: When the total heat transfer temperature difference is large, appropriately increase the compressor frequency and fan speed, and increase the expansion valve opening. When the total heat transfer temperature difference is small, reduce the corresponding parameters to save energy.

8. The fluorine pump air conditioner control method according to claim 7, characterized in that: In the steps of precisely controlling the fluorine pump frequency based on pressure difference and current and voltage deviation through multi-stage PID control: Collect fluorine pump air conditioning operation data, obtain inlet pressure and outlet pressure, and calculate real-time pressure difference; Calling the target pressure difference, calculating the difference between the target pressure difference and the real-time pressure difference, and performing a PID operation based on the difference to obtain a first target speed; Calling the target output voltage and the target output current according to the first target speed, sampling the real-time output voltage or the real-time output current, and calculating the voltage deviation and the current deviation; PID control is performed again based on the voltage deviation and current deviation to adjust the real-time output voltage and real-time output current to the target output current, and the fluorine pump frequency is accurately controlled.

9. The fluorine pump air conditioner control method according to claim 8, characterized in that: In the step of determining the energy-saving operation control strategy for the fluorine pump air conditioner based on the cooling capacity parameters and energy consumption parameters under multiple working modes, the first operating relationship, and the second operating relationship: Under different indoor and outdoor environmental conditions, select the most energy-saving working mode and equipment operating parameter combination.

Images