An air compressor control system with power saving and speed regulation functions

Abstract

The present application relates to the field of air compressor control technology, and discloses an air compressor control system with power saving and speed regulation functions, the system includes a control platform, a power saving module and a speed regulation module, and both the power saving module and the speed regulation module are connected to the control platform in communication. In the present application, the human-computer interaction function between the air compressor control system and the operator is realized through the control platform; the live switching and power-saving operation of the first air compressor and the second air compressor are realized through the power saving module; the relationship between the speed control method constructed by the speed regulation module and the power consumption is realized to optimize the selection of the speed control method, and realize smooth and power-saving speed control. Finally, power saving control and speed regulation control of the two air compressors are realized.

Description

Technical Field

[0001] The present application relates to the technical field of air compressor control, and in particular to an air compressor control system with power saving and speed regulation functions. Background Art

[0002] Traditional high-pressure centrifuges are mostly operated in a one-to-one power-saving mode. When there are two high-pressure centrifuges, one for use and one for backup, not only is the control complicated, but there is also a large amount of energy waste, which will affect the safety of equipment operation. Chinese patent number CN201520789500.8 discloses a one-to-two control system for secondary fans of thermal power boilers, which can achieve one-to-two control of the secondary fans of two boilers through a high-voltage frequency converter, greatly improving the operating efficiency of the boiler, reducing energy consumption and production costs, but its energy-saving effect is limited.

[0003] Centrifugal air compressors are fixed frequency machines and the frequency cannot be changed using a frequency converter.

[0004] In summary, the prior art lacks a technical solution that can achieve power saving control and speed regulation control for an air compressor. Summary of the invention

[0005] The purpose of this application is to provide an air compressor control system with power saving and speed regulation functions to solve the technical problems raised in the above background technology.

[0006] To achieve the above objectives, this application discloses the following technical solutions:

[0007] An air compressor control system with power saving and speed regulation functions, the system comprising:

[0008] A control platform, wherein the control platform is configured to: receive, send and process control signals in the air compressor control system, and display the real-time working status of the air compressor control system to an operator;

[0009] A power saving module, the power saving module is used to switch the first air compressor and the second air compressor controlled by the air compressor control system, and put any one of the first air compressor and the second air compressor into a power saving mode during operation;

[0010] A speed regulating module, the speed regulating module is used to receive the pressure data in the air storage tank and perform speed regulating control on any one of the first air compressor and the second air compressor;

[0011] The power saving module and the speed regulating module are both communicatively connected to the control platform.

[0012] Through the above, the human-computer interaction function between the air compressor control system and the operator is realized through the control platform; the switching and power-saving operation of the first air compressor and the second air compressor are realized through the power-saving module; and effective, stable and power-saving speed control is realized through the speed control module.

[0013] Preferably, the control platform comprises:

[0014] A human-machine interaction unit, the human-machine interaction unit is used to send and receive control signals sent by an operator, and display the real-time working status of the air compressor control system to the operator;

[0015] A power saving control unit, the power saving control unit is used to control the power saving module based on a control signal sent by an operator;

[0016] A speed control unit, wherein the speed control unit is used to control the speed control module.

[0017] Through the above, real-time signal transmission between the air compressor control system and the operator is realized through the human-computer interaction unit, which improves the controllability and visualization of the air compressor control system; real-time signal transmission between the power saving module and the operator is realized through the power saving control unit; control of the speed control module is realized through the speed control unit, and the control method of the speed control module is optimized.

[0018] Preferably, the power saving module includes a high-voltage switch QF1, a high-voltage switch QF2, a high-voltage isolating switch QS1, a high-voltage isolating switch QS2, a high-voltage isolating switch QS3, a high-voltage isolating switch QS4, a vacuum contactor KM1, a vacuum contactor KM2, a vacuum contactor KM3, a vacuum contactor KM4, a vacuum contactor KM5, a vacuum contactor KM6 and a high-voltage power saver;

[0019] The high-voltage switch QF1, the high-voltage isolating switch QS1, the high-voltage isolating switch QS2, the vacuum contactor KM1, the vacuum contactor KM2, the vacuum contactor KM3 and the high-voltage energy saver constitute a first air compressor energy saving unit;

[0020] The high-voltage switch QF2, the high-voltage isolating switch QS3, the high-voltage isolating switch QS4, the vacuum contactor KM4, the vacuum contactor KM5, the vacuum contactor KM6 and the high-voltage energy saver constitute a second air compressor power saving control unit.

[0021] As described above, by setting the first air compressor power saving unit and the second air compressor power saving unit to share a high-voltage power saver, the cost of a set of power saving equipment can be saved when either the first air compressor or the second air compressor is operated in a power-saving manner.

[0022] Preferably, the power saving mode is configured as follows:

[0023] When the first air compressor power saving unit is running, the high-voltage disconnector QS1, the high-voltage disconnector QS2, the vacuum contactor KM1 and the vacuum contactor KM2 are closed, the high-voltage switch QF1 is closed, the first air compressor is operated through the high-voltage energy saver, and the vacuum contactors KM3, KM4 and KM5 are disconnected;

[0024] When the second air compressor power saving unit is running, the high-voltage isolating switch QS3, the high-voltage isolating switch QS4, the vacuum contactor KM4 and the vacuum contactor KM5 are closed, the high-voltage switch QF2 is closed, the second air compressor is operated by the high-voltage energy saver, and the vacuum contactor KM1, the vacuum contactor KM2 and the vacuum contactor KM6 are disconnected.

[0025] By means of the above, the first air compressor power saving unit and the second air compressor power saving unit respectively use high voltage power savers, thereby achieving independent power saving operation of the first air compressor power saving unit and the second air compressor power saving unit.

[0026] Preferably, the power saving module is further provided with a power saving and charging switching mode, and the power saving and charging switching mode is configured as follows:

[0027] When the first air compressor is operated in power saving mode, the vacuum contactor KM1 and the vacuum contactor KM2 are disconnected, and the vacuum contactor KM3 is closed. The first air compressor enters the bypass mode, and the high-voltage isolating switch QS3, the high-voltage isolating switch QS4, the vacuum contactor KM4 and the vacuum contactor KM5 are closed. The high-voltage switch QF2 is closed, and the second air compressor is operated through the high-voltage energy saver. After the second air compressor runs stably, the bypass operation of the first air compressor is stopped;

[0028] When the second air compressor is operated in a power-saving manner, the vacuum contactor KM4 and the vacuum contactor KM5 are disconnected, and the vacuum contactor KM6 is closed. The second air compressor enters the bypass mode, and the high-voltage isolating switch QS1, the high-voltage isolating switch QS2, the vacuum contactor KM1 and the vacuum contactor KM2 are closed. The high-voltage switch QF1 is closed, and the first air compressor is operated through the high-voltage energy saver. After the first air compressor runs stably, the bypass operation of the second air compressor is stopped.

[0029] Through the above, electrical interlocking is added by vacuum contactor KM1, vacuum contactor KM2 and vacuum contactor KM3, and electrical interlocking is added by vacuum contactor KM4, vacuum contactor KM5 and vacuum contactor KM6, so as to realize smooth and fast switching of the first air compressor power saving unit and the second air compressor power saving unit, thereby ensuring the safety of equipment operation.

[0030] Preferably, the speed regulation module includes a pressure acquisition unit, a speed regulation control model and a speed regulation control unit;

[0031] The pressure acquisition unit is used to collect pressure data in the gas storage tank and transmit it to the speed control model;

[0032] The speed control model is used to receive the pressure data, and generate a speed control method using a speed control algorithm preset in the speed control model, and transmit the speed control method to the speed control unit;

[0033] The speed control unit is used to receive the speed control method and use the speed control method to perform speed control on any one of the first air compressor and the second air compressor.

[0034] Through the above, the pressure data in the gas tank is collected in real time through the pressure collection unit to ensure the timeliness of the speed control; the speed control method is output by the speed control model to achieve optimized speed control; the speed control of any one of the first air compressor and the second air compressor based on the optimized speed control method is achieved through the speed control unit.

[0035] Preferably, the pressure acquisition unit is configured as follows: a plurality of pressure sensors are arranged in the gas storage tank, the pressure acquisition unit uses the pressure sensors to acquire the pressure in the gas storage tank, calculates the pressure average value, and transmits the obtained pressure average value to the speed control model.

[0036] Based on the above, multiple pressure sensors are provided to accurately obtain the pressure data in the gas storage tank.

[0037] Preferably, the training of the speed control model comprises the following steps:

[0038] S1: Get the pressure threshold range in the gas tank ,in, and and are all positive natural numbers;

[0039] S2: Acquire historical speed regulation data, wherein the historical speed regulation data includes the pressure during speed regulation, the selected control method and the power consumed in the corresponding speed regulation process; the control method includes any one or more of proportional control, integral control and differential control;

[0040] S3: Based on the historical speed regulation data, a historical speed regulation function relationship is constructed ,in, is the corresponding relationship between the pressure during speed regulation and the selected control method, The corresponding relationship between the selected control method and the amount of electricity consumed in the speed regulation process corresponding to the method;

[0041] S4: sorting the different power consumptions corresponding to different control methods corresponding to the same pressure, and taking the control method corresponding to the minimum power consumption as the preferred control method when facing the pressure;

[0042] S5: Based on the preferred control method, construct a speed control method selection relationship .

[0043] Based on the above, the corresponding relationship between speed control and power consumption is established by constructing a historical function relationship, and the speed control method selection based on optimizing power consumption is achieved by constructing a speed control method selection relationship.

[0044] Preferably, the calling of the speed control model comprises the following steps:

[0045] A1: Obtain the average pressure value, and determine whether the average pressure value falls within the pressure threshold range in the gas storage tank. If yes, no speed regulation is required, otherwise, execute step A2;

[0046] A2: Determine whether there is historical pressure data equal to the pressure average value in the historical speed control data. If yes, use Obtaining a preferred control method, transmitting the preferred control method to the speed control unit, otherwise executing step A3;

[0047] A3: Preset pressure difference threshold ; Traverse the historical speed control data to determine whether there is a satisfying Historical pressure data, including is the average pressure value, is the historical pressure data, then based on the historical pressure data and using Obtaining a preferred control method, transmitting the preferred control method to the speed control unit, otherwise executing step A4;

[0048] A4: Select any one of the control methods as the preferred control method, and transmit it to the speed control unit, and mark the pressure average value corresponding to this speed control. When the pressure average value is reached, any one of the control methods except the control method used this time is selected to perform speed control, the speed control data is recorded and the speed control model is updated and trained.

[0049] Based on the above, the power consumption in the speed control is reduced by optimizing the selection of the control method, and the speed control model is optimized based on the pressure difference threshold.

[0050] Preferably, the speed control unit is configured to receive the preferred control method and perform speed control on any one of the first air compressor and the second air compressor.

[0051] Through the above, based on the preferred control method, the speed control unit realizes the optimized speed control of any one of the first air compressor and the second air compressor.

[0052] Beneficial effects: The air compressor control system based on power saving and speed regulation functions of the present application realizes the human-computer interaction function between the air compressor control system and the operator through the control platform; the live switching and power-saving operation of the first air compressor and the second air compressor are realized through the power saving module; the selection of the speed control method is optimized through the relationship between the speed control method constructed by the speed regulation module and the power consumption, thereby realizing smooth and power-saving speed control. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0054] Figure 1 A schematic block diagram of an air compressor control system with power saving and speed regulation functions provided in an embodiment of the present application;

[0055] Figure 2 A schematic diagram of a power saving module provided in an embodiment of the present application. DETAILED DESCRIPTION

[0056] The technical solutions in the embodiments of the present application are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0057] In this article, the term "comprising" is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, the elements defined by the sentence "comprising..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0058] This embodiment discloses Figure 1 The air compressor control system with power saving and speed regulation functions shown in the figure includes:

[0059] The control platform is configured to: receive, send and process control signals in the air compressor control system, and display the real-time working status of the air compressor control system to the operator.

[0060] The power saving module is used to switch the first air compressor and the second air compressor controlled by the air compressor control system, and put any one of the first air compressor and the second air compressor into the power saving mode during operation.

[0061] The speed regulating module is used to receive the pressure data in the air storage tank and perform speed regulating control on any one of the first air compressor and the second air compressor.

[0062] The power saving module and the speed regulating module are both connected to the control platform for communication.

[0063] The control platform realizes the human-computer interaction function between the air compressor control system and the operator; the power-saving module realizes the switching and power-saving operation of the first air compressor and the second air compressor; the speed control module realizes effective, stable and power-saving speed control.

[0064] Specifically, the control platform includes:

[0065] The human-machine interaction unit is used to send and receive control signals sent by the operator and display the real-time working status of the air compressor control system to the operator.

[0066] The power saving control unit is used to control the power saving module based on a control signal sent by an operator.

[0067] The speed control unit is used to control the speed control module.

[0068] Real-time signal transmission between the air compressor control system and the operator is realized through the human-computer interaction unit, which improves the controllability and visualization of the air compressor control system; real-time signal transmission between the power saving module and the operator is realized through the power saving control unit; control of the speed control module is realized through the speed control unit, and the control method of the speed control module is optimized.

[0069] Specifically, Figure 2 As shown, the power saving module includes high-voltage switch QF1, high-voltage switch QF2, high-voltage isolating switch QS1, high-voltage isolating switch QS2, high-voltage isolating switch QS3, high-voltage isolating switch QS4, vacuum contactor KM1, vacuum contactor KM2, vacuum contactor KM3, vacuum contactor KM4, vacuum contactor KM5, vacuum contactor KM6 and high-voltage power saver.

[0070] The high-voltage switch QF1, the high-voltage isolating switch QS1, the high-voltage isolating switch QS2, the vacuum contactor KM1, the vacuum contactor KM2, the vacuum contactor KM3 and the high-voltage energy saver constitute the first air compressor energy saving unit.

[0071] The high-voltage switch QF2, the high-voltage isolating switch QS3, the high-voltage isolating switch QS4, the vacuum contactor KM4, the vacuum contactor KM5, the vacuum contactor KM6 and the high-voltage energy saver constitute the second air compressor power saving control unit.

[0072] In a simple example, the power-saving module is installed in a one-to-two control cabinet for a high-pressure centrifuge. The cabinet doors are equipped with high-voltage locks. After the high-voltage power is turned on, the cabinet doors will be automatically locked by electromagnetic locks. Unless a special key is used, the cabinet doors cannot be opened.

[0073] By arranging that the first air compressor power saving unit and the second air compressor power saving unit share a high-voltage power saver, the cost of a set of power saving equipment can be saved when either the first air compressor or the second air compressor is operated in a power-saving manner.

[0074] Specific, combined Figure 2 , the power saving mode is configured as:

[0075] When the power saving unit of the first air compressor is running, close the high-voltage isolating switch QS1, the high-voltage isolating switch QS2, the vacuum contactor KM1 and the vacuum contactor KM2, close the high-voltage switch QF1, operate the first air compressor through the high-voltage energy saver, and disconnect the vacuum contactors KM3, KM4 and KM5 to prevent reverse power supply and simultaneous dragging of the first and second air compressors.

[0076] When the second air compressor power saving unit is running, close the high-voltage isolating switch QS3, the high-voltage isolating switch QS4, the vacuum contactor KM4 and the vacuum contactor KM5, close the high-voltage switch QF2, operate the second air compressor through the high-voltage energy saver, and disconnect the vacuum contactor KM1, the vacuum contactor KM2 and the vacuum contactor KM6 to prevent reverse power supply and simultaneous dragging of the first air compressor and the second air compressor.

[0077] By using high-voltage power savers respectively in the first air compressor power saving unit and the second air compressor power saving unit, independent power saving operation of the first air compressor power saving unit and the second air compressor power saving unit can be achieved.

[0078] Specific, combined Figure 2 The power saving module is also provided with a power saving and charging switching mode, and the power saving and charging switching mode is configured as follows:

[0079] When operating the first air compressor in a power-saving manner, disconnect the vacuum contactors KM1 and KM2, close the vacuum contactor KM3, and the first air compressor enters the bypass mode. Close the high-voltage isolating switch QS3, the high-voltage isolating switch QS4, the vacuum contactor KM4 and the vacuum contactor KM5, close the high-voltage switch QF2, and operate the second air compressor through the high-voltage energy saver. After the second air compressor runs stably, stop the bypass operation of the first air compressor.

[0080] When operating the second air compressor in a power-saving manner, disconnect vacuum contactors KM4 and KM5, close vacuum contactor KM6, and the second air compressor enters bypass mode. Close high-voltage disconnector QS1, high-voltage disconnector QS2, vacuum contactor KM1 and vacuum contactor KM2, close high-voltage switch QF1, and operate the first air compressor through the high-voltage energy saver. After the first air compressor runs stably, stop the bypass operation of the second air compressor.

[0081] In a simple example, when switching every month, you only need to press the switch button to automatically switch from the first air compressor to the second air compressor. When the second air compressor is working at the highest set frequency, stop the operation of the first air compressor.

[0082] By adding electrical interlocks to vacuum contactors KM1, KM2 and KM3, and adding electrical interlocks to vacuum contactors KM4, KM5 and KM6, smooth and fast switching between the first air compressor power saving unit and the second air compressor power saving unit is achieved, ensuring the safety of equipment operation.

[0083] Specifically, the speed regulation module includes a pressure acquisition unit, a speed regulation control model and a speed regulation control unit.

[0084] The pressure acquisition unit is used to collect the pressure data in the gas tank and transmit it to the speed control model.

[0085] The speed control model is used to receive pressure data, and generate a speed control method using a speed control algorithm preset in the speed control model, and transmit the speed control method to the speed control unit.

[0086] The speed control unit is used to receive a speed control method and use the speed control method to perform speed control on any one of the first air compressor and the second air compressor.

[0087] The pressure data in the gas tank is collected in real time through the pressure collection unit to ensure the timeliness of the speed control; the speed control method is output by the speed control model to achieve optimized speed control; the speed control unit is used to achieve speed control of any one of the first air compressor and the second air compressor based on the optimized speed control method.

[0088] Specifically, the pressure acquisition unit is configured as follows: a plurality of pressure sensors are arranged in the gas storage tank, the pressure acquisition unit uses the pressure sensors to collect the pressure in the gas storage tank, calculates the pressure average value, and transmits the obtained pressure average value to the speed control model.

[0089] By setting up multiple pressure sensors, it is possible to accurately obtain the pressure data in the gas storage tank.

[0090] Specifically, the training of the speed control model includes the following steps:

[0091] S1: Get the pressure threshold range in the gas tank ,in, and and are all positive natural numbers.

[0092] S2: Obtain historical speed regulation data, which includes the pressure during speed regulation, the selected control method, and the power consumed during the corresponding speed regulation process. The control method includes any one or more of proportional control, integral control, and differential control.

[0093] S3: Based on historical speed regulation data, build a historical speed regulation function relationship ,in, To determine the corresponding relationship between the pressure during speed regulation and the selected control method, It is the correspondence between the selected control method and the amount of electricity consumed in the speed regulation process corresponding to the method.

[0094] S4: Sort the different power consumptions corresponding to different control methods corresponding to the same pressure, and use the control method corresponding to the minimum power consumption as the preferred control method when facing the pressure.

[0095] S5: Based on the preferred control method, build a speed control method selection relationship .

[0096] By constructing a historical function relationship, the corresponding relationship between speed control and power consumption is established, and by constructing a speed control method selection relationship, the speed control method selection based on optimizing power consumption is achieved.

[0097] Specifically, the calling of the speed control model includes the following steps:

[0098] A1: Get the average pressure value and determine whether the average pressure value falls within the pressure threshold range in the gas storage tank. If so, no speed regulation is required. Otherwise, execute step A2.

[0099] A2: Determine whether there is historical pressure data equal to the average pressure value in the historical speed control data. If yes, use A preferred control method is obtained and transmitted to the speed control unit; otherwise, step A3 is executed.

[0100] A3: Preset pressure difference threshold ; Traverse the historical speed regulation data to determine whether there is a satisfying Historical pressure data, including is the average pressure, is historical pressure data, then based on the historical pressure data and using A preferred control method is obtained and transmitted to the speed control unit, otherwise step A4 is executed.

[0101] A4: Select any control method as the preferred control method and transmit it to the speed control unit, and mark the pressure average value corresponding to this speed control. When the pressure average value is reached, any control method other than the control method used this time is selected for speed control, the speed control data is recorded and the training speed control model is updated.

[0102] The power consumption in speed control is reduced by optimizing the selection of control method, and the speed control model is optimized based on the pressure difference threshold.

[0103] Specifically, the speed control unit is configured to receive the preferred control method and perform speed control on any one of the first air compressor and the second air compressor.

[0104] Based on the preferred control method, the speed control unit realizes optimized speed control of any one of the first air compressor and the second air compressor.

[0105] In summary, the air compressor control system based on power saving and speed regulation functions of this embodiment realizes the human-computer interaction function between the air compressor control system and the operator through the control platform; realizes the live switching and power-saving operation of the first air compressor and the second air compressor through the power saving module; and optimizes the selection of the speed control method through the relationship between the speed control method constructed by the speed regulation module and the power consumption, thereby realizing smooth and power-saving speed control.

[0106] In the embodiments provided in the present application, it should be understood that the embodiments described herein can be implemented in hardware, software, firmware, middleware, code, or any appropriate combination thereof. For hardware implementation, the processor can be implemented in one or more of the following units: an application-specific integrated circuit (ASIC), a digital signal processor (DSP), a digital signal processing device (DSPD), a programmable logic device (PLD), a field programmable gate array (FPGA), a processor, a controller, a microcontroller, a microprocessor, other electronic units designed to implement the functions described herein, or a combination thereof. For software implementation, part or all of the processes of the embodiment can be completed by instructing the relevant hardware through a computer program. When implemented, the above program can be stored in a computer-readable storage medium or transmitted as one or more instructions or codes on a computer-readable storage medium. Computer-readable storage media include computer storage media and communication media, wherein the communication medium includes any medium that facilitates the transmission of a computer program from one place to another. The storage medium can be any available medium that can be accessed by a computer. Computer-readable storage media can include, but are not limited to, RAM, ROM, EEPROM, CD-ROM or other optical disk storage, disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store the desired program code in the form of an instruction or data structure and can be accessed by a computer.

[0107] Finally, it should be noted that the above is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An air compressor control system with power saving and speed regulation functions, characterized in that: The system includes: A control platform, wherein the control platform is configured to: receive, send and process control signals in the air compressor control system, and display the real-time working status of the air compressor control system to an operator; A power saving module, the power saving module is used to switch the first air compressor and the second air compressor controlled by the air compressor control system, and put any one of the first air compressor and the second air compressor into a power saving mode during operation; A speed regulating module, the speed regulating module is used to receive the pressure data in the air storage tank and perform speed regulating control on any one of the first air compressor and the second air compressor; The power saving module and the speed regulating module are both communicatively connected to the control platform; The control platform comprises: A human-machine interaction unit, the human-machine interaction unit is used to send and receive control signals sent by an operator, and display the real-time working status of the air compressor control system to the operator; A power saving control unit, the power saving control unit is used to control the power saving module based on a control signal sent by an operator; A speed control unit, which is used to control the speed control module; The speed regulation module includes a pressure acquisition unit, a speed regulation control model and a speed regulation control unit; The pressure acquisition unit is used to collect pressure data in the gas storage tank and transmit it to the speed control model; The speed control model is used to receive the pressure data, and generate a speed control method using a speed control algorithm preset in the speed control model, and transmit the speed control method to the speed control unit; The speed control unit is used to receive the speed control method and use the speed control method to perform speed control on any one of the first air compressor and the second air compressor; The pressure acquisition unit is configured as follows: a plurality of pressure sensors are arranged in the gas storage tank, the pressure acquisition unit uses the pressure sensors to collect the pressure in the gas storage tank, calculates the pressure average value, and transmits the obtained pressure average value to the speed control model; The training of the speed control model includes the following steps: S1: Get the pressure threshold range in the gas tank ,in, and and are all positive natural numbers; S2: Acquire historical speed regulation data, wherein the historical speed regulation data includes the pressure during speed regulation, the selected control method and the power consumed in the corresponding speed regulation process; the control method includes any one or more of proportional control, integral control and differential control; S3: Based on the historical speed regulation data, a historical speed regulation function relationship is constructed ,in, is the corresponding relationship between the pressure during speed regulation and the selected control method, The corresponding relationship between the selected control method and the amount of electricity consumed in the speed regulation process corresponding to the method; S4: sorting the different power consumptions corresponding to different control methods corresponding to the same pressure, and taking the control method corresponding to the minimum power consumption as the preferred control method when facing the pressure; S5: Based on the preferred control method, construct a speed control method selection relationship .

2. The air compressor control system with power saving and speed regulation functions according to claim 1 is characterized in that: The power saving module includes a high-voltage switch QF1, a high-voltage switch QF2, a high-voltage isolating switch QS1, a high-voltage isolating switch QS2, a high-voltage isolating switch QS3, a high-voltage isolating switch QS4, a vacuum contactor KM1, a vacuum contactor KM2, a vacuum contactor KM3, a vacuum contactor KM4, a vacuum contactor KM5, a vacuum contactor KM6 and a high-voltage power saver; The high-voltage switch QF1, the high-voltage isolating switch QS1, the high-voltage isolating switch QS2, the vacuum contactor KM1, the vacuum contactor KM2, the vacuum contactor KM3 and the high-voltage energy saver constitute a first air compressor energy saving unit; The high-voltage switch QF2, the high-voltage isolating switch QS3, the high-voltage isolating switch QS4, the vacuum contactor KM4, the vacuum contactor KM5, the vacuum contactor KM6 and the high-voltage energy saver constitute a second air compressor power saving control unit.

3. The air compressor control system with power saving and speed regulation functions according to claim 2 is characterized in that: The power saving module is provided with a power saving mode, and the power saving mode is configured as follows: When the first air compressor power saving unit is running, the high-voltage disconnector QS1, the high-voltage disconnector QS2, the vacuum contactor KM1 and the vacuum contactor KM2 are closed, the high-voltage switch QF1 is closed, the first air compressor is operated through the high-voltage energy saver, and the vacuum contactors KM3, KM4 and KM5 are disconnected; When the second air compressor power saving unit is running, the high-voltage isolating switch QS3, the high-voltage isolating switch QS4, the vacuum contactor KM4 and the vacuum contactor KM5 are closed, the high-voltage switch QF2 is closed, the second air compressor is operated by the high-voltage energy saver, and the vacuum contactor KM1, the vacuum contactor KM2 and the vacuum contactor KM6 are disconnected.

4. The air compressor control system with power saving and speed regulation functions according to claim 3 is characterized in that: The power saving module is also provided with a power saving and charging switching mode, and the power saving and charging switching mode is configured as follows: When the first air compressor is operated in power saving mode, the vacuum contactor KM1 and the vacuum contactor KM2 are disconnected, and the vacuum contactor KM3 is closed. The first air compressor enters the bypass mode, and the high-voltage isolating switch QS3, the high-voltage isolating switch QS4, the vacuum contactor KM4 and the vacuum contactor KM5 are closed. The high-voltage switch QF2 is closed, and the second air compressor is operated through the high-voltage energy saver. After the second air compressor runs stably, the bypass operation of the first air compressor is stopped; When the second air compressor is operated in a power-saving manner, the vacuum contactor KM4 and the vacuum contactor KM5 are disconnected, and the vacuum contactor KM6 is closed. The second air compressor enters the bypass mode, and the high-voltage isolating switch QS1, the high-voltage isolating switch QS2, the vacuum contactor KM1 and the vacuum contactor KM2 are closed. The high-voltage switch QF1 is closed, and the first air compressor is operated through the high-voltage energy saver. After the first air compressor runs stably, the bypass operation of the second air compressor is stopped.

5. The air compressor control system with power saving and speed regulation functions according to claim 1 is characterized in that: The calling of the speed control model includes the following steps: A1: Obtain the average pressure value, and determine whether the average pressure value falls within the pressure threshold range in the gas storage tank. If yes, no speed regulation is required, otherwise, execute step A2; A2: Determine whether there is historical pressure data equal to the pressure average value in the historical speed control data. If yes, use Obtaining a preferred control method, transmitting the preferred control method to the speed control unit, otherwise executing step A3; A3: Preset pressure difference threshold ; Traverse the historical speed control data to determine whether there is a satisfying Historical pressure data, including is the average pressure value, is the historical pressure data, based on the historical pressure data and using Obtaining a preferred control method, transmitting the preferred control method to the speed control unit, otherwise executing step A4; A4: Select any one of the control methods as the preferred control method, and transmit it to the speed control unit, and mark the pressure average value corresponding to this speed control. When the pressure average value is reached, any one of the control methods except the control method used this time is selected to perform speed control, the speed control data is recorded and the speed control model is updated and trained.

6. The air compressor control system with power saving and speed regulation functions according to claim 5 is characterized in that: The speed control unit is configured to receive the preferred control method and perform speed control on any one of the first air compressor and the second air compressor.

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