Throttle electrical control system and control method

Abstract

The invention provides a throttler electrical control system and method, and the system comprises a basic data collection and conversion module, a control algorithm and logic judgment module, and an intelligent fault processing module. The control algorithm and the logic judgment module can accurately calculate the adjustment value of the opening degree of the throttler according to the data, the preset fluid pressure and the preset flow set value, and therefore efficient and accurate control over the fluid flow is achieved. The intelligent fault processing module continuously monitors error signals in the control process, errors exceed a preset threshold value, and corresponding fault processing instructions are flexibly sent out according to the change rate of the error signals. And the development and expansion of faults are effectively avoided.

Description

Technical Field

[0001] The present invention relates to the field of throttle electrical control, and in particular to a throttle electrical control system and a control method. Background Art

[0002] As a device that plays a key role in the field of fluid regulation, the throttle has many significant beneficial effects. The throttle effectively controls the fluid flow rate by changing the area of ​​the fluid channel. When the opening of the throttle changes, it will directly cause the flow rate and flow rate of the fluid passing through the throttle to change accordingly, thereby accurately achieving the goal of regulating the flow rate. This method of achieving flow regulation based on physical structure changes is stable and reliable, and is widely used in various industrial scenarios involving fluid transportation and control, such as liquid raw material transportation in chemical production, hot water flow regulation in heating systems, etc. Through fine adjustment of the flow rate, it can be ensured that the entire system operates stably according to the preset parameters, improving production efficiency and product quality.

[0003] One of the outstanding advantages of the throttle is that it can achieve precise adjustment of the opening with the help of the electrical control system. The electrical control system can make real-time and precise adjustments to the opening of the throttle according to the specific needs of the system to meet the diverse needs for flow or pressure under different working conditions. In some precision production processes with extremely high requirements for flow and pressure, such as the photolithography process in semiconductor manufacturing, the flow and pressure of chemical reagents need to be precisely controlled. The throttle can be well matched with the electrical control system to complete this task, ensuring the high precision and stability of the production process. Moreover, this precise adjustment can also be adaptively adjusted according to the dynamic changes of the system, further improving the flexibility and adaptability of the system.

[0004] A throttle proposed in Chinese invention patent application number: CN201711134032.0 comprises: a shell, the shell is equipped with an upper end of a throttle body, the inner side of the upper end of the throttle body is provided with a thread, the middle end of the throttle body is a cylinder with flow holes on both sides, the outer diameter of the middle end of the throttle body is smaller than the outer diameter of the upper end of the throttle body, the lower end of the throttle body is a solid cylinder, the lower end of the throttle body is an oil collecting chamber, the middle end of the shell is provided with a cylindrical protrusion, the outer surface of the upper end of the throttle body is provided with a thread, the outer diameter of the lower end of the throttle body is larger than the outer diameter of the middle end of the throttle body, and the outer surface of the lower end of the throttle body is provided with a spiral oil supply groove. In the present invention, the lower end of the throttle body is provided with a spiral oil supply groove, and the lower end is consistent with the cylindrical protrusion. The upper end of the throttle body and the shell are connected by threads, and the oil flow rate can be adjusted according to specific needs.

[0005] However, in the process of throttle control, the throttle still has certain limitations. When the throttle fails, the system often cannot detect and handle it in time. This may lead to a series of serious consequences, such as fluid flow out of control and pressure abnormality, which in turn affects the normal operation of the entire production process and may even cause safety accidents. In traditional electrical control systems, when the throttle fails, the system often cannot detect and handle it in time. Therefore, we propose a throttle electrical control system and control method. Summary of the invention

[0006] The purpose of the present invention is to solve the problems raised by the existing background technology. In order to achieve the above invention purpose, the present invention provides the following technical solutions: a throttle electrical control system, including a basic data acquisition and conversion module, a control algorithm and logic judgment module and an intelligent fault processing module, the control algorithm and logic judgment module is provided with a throttle historical data processing and analysis unit, and the intelligent fault processing module is provided with a fault warning and fault diagnosis unit.

[0007] As a preferred technical solution of the present invention, the basic data acquisition and conversion module is used to collect the inlet pressure, outlet pressure, flow rate and current opening of the throttle in real time, and convert these basic data into electrical signal energy for accumulation to obtain an electrical signal energy function.

[0008] As a preferred technical solution of the present invention, the electrical signal energy function is an integral function of the sum of the inlet pressure and the outlet pressure and the flow rate and the throttle opening within the time range of 0 to t.

[0009] As a preferred technical solution of the present invention, the control algorithm and logic judgment module are used to calculate the adjustment value of the throttle opening through the control algorithm based on the electrical signal energy function obtained by the basic data acquisition and conversion module, as well as the preset fluid pressure setting value and fluid flow setting value.

[0010] As a preferred technical solution of the present invention, the control algorithm adopts a proportional-integral-differential controller, and the adjustment value of the throttle opening is the product of the proportional coefficient and the error signal plus the integral product of the integral coefficient and the error signal from 0 to t, plus the differential function of the differential gain coefficient and the error signal.

[0011] As a preferred technical solution of the present invention, the intelligent fault processing module is used to monitor the size and change rate of the error signal and the preset fault judgment threshold in real time during the process of the control algorithm and the logic judgment module calculating the throttle opening adjustment value. When the error signal exceeds the fault judgment threshold, different fault processing instructions are issued according to the change rate of the error signal.

[0012] As a preferred technical solution of the present invention, when the error signal of the fault handling instruction is less than a preset fault judgment threshold, it indicates that the system is in a normal state; when the error signal of the fault handling instruction is greater than or equal to the preset fault judgment threshold and the differential of the error signal is greater than zero, it indicates that the throttle opening needs to be adjusted and other measures need to be taken to reduce the error; when the error signal of the fault handling instruction is greater than or equal to the preset fault judgment threshold and the differential of the error signal is less than zero, it indicates that the system status needs to be monitored but no immediate action is required.

[0013] As a preferred technical solution of the present invention, it also includes a remote monitoring platform connected to the throttle electrical control system, which is used to remotely monitor and control the operating status of the throttle, and receive and process fault handling instructions from the throttle electrical control system.

[0014] A throttle electrical control method comprises the following steps: Step 1: Real-time collection of the inlet pressure, outlet pressure, flow rate and current opening of the throttle; Step 2: Convert the collected basic data into electrical signal energy and accumulate them to obtain the electrical signal energy function; Step 3: Calculate the adjustment value of the throttle opening through a control algorithm based on the electrical signal energy function, the preset fluid pressure setting value and the fluid flow setting value.

[0015] Step 4: In the process of calculating the throttle opening adjustment value, the size and change rate of the error signal and the preset fault judgment threshold are monitored in real time; Step 5: When the error signal exceeds the fault judgment threshold, different fault handling instructions are issued according to the change rate of the error signal; Step 6: Take appropriate troubleshooting measures according to the troubleshooting instructions.

[0016] As a preferred technical solution of the present invention, the fault handling measures include adjusting the throttle opening, issuing a warning signal and monitoring the system status.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The basic data acquisition and conversion module collects the key operating parameters of the throttle in real time, converts them into electrical signal energy for accumulation, and forms an electrical signal energy function, which provides an accurate data basis for the control algorithm. The control algorithm and logic judgment module use these data and the preset fluid pressure and flow setting values ​​to accurately calculate the adjustment value of the throttle opening, thereby achieving efficient and precise control of the fluid flow; the intelligent fault handling module continuously monitors the error signal during the control process. Once the error exceeds the preset threshold, the corresponding fault handling instructions are flexibly issued according to the change rate of the error signal. This intelligent fault handling method not only improves the response speed of the system, but also can take corresponding handling measures according to the specific circumstances of the fault, effectively avoiding the further development and expansion of the fault. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a system logic block diagram provided by the present invention. DETAILED DESCRIPTION

[0019] To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them.

[0020] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. It should be noted that the embodiments of the present invention and the features and technical solutions in the embodiments can be combined with each other without conflict. It should be noted that similar numbers and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0021] Embodiment 1: A throttle electrical control system, including a basic data acquisition and conversion module, for real-time acquisition of the throttle inlet pressure, outlet pressure, flow rate and current opening of the throttle, and conversion of these basic data into electrical signal energy for accumulation to obtain an electrical signal energy function ; The control algorithm and logic judgment module is used to obtain the electrical signal energy function based on the basic data acquisition and conversion module. , and the preset fluid pressure setting and fluid flow setting , the adjustment value of the throttle opening is calculated through the control algorithm ; Intelligent fault processing module, used to calculate the throttle opening adjustment value in the control algorithm and logic judgment module During the process, the error signal is monitored in real time The size and change rate of the fault, as well as the preset fault judgment threshold When the error signal exceeds the fault judgment threshold, different fault handling instructions are issued according to the change rate of the error signal. .

[0022] Electrical signal energy function It is expressed as: ; in, is the inlet pressure, is the outlet pressure, For flow, is the current opening of the throttle, is the time variable, The current time point.

[0023] The control algorithm adopts proportional-integral-differential controller, and the adjustment value of the throttle opening It is expressed as: ; in, is the error signal, defined as the difference between the actual pressure and the set pressure, , , They are proportional, integral and differential gain coefficients respectively, which are determined through experiments and optimization algorithms.

[0024] Fault handling instructions It is expressed as: in, For fault handling instructions, Indicates that the system is in normal state. It indicates that it is necessary to adjust the throttle opening or take other measures to reduce the error. Indicates that system status requires monitoring but no immediate action is required.

[0025] The control algorithm and logic judgment module also includes the processing and analysis of the throttle historical data to optimize the performance and accuracy of the control algorithm.

[0026] The intelligent fault handling module also includes fault warning and fault diagnosis functions, which can issue a warning signal in advance before a fault occurs and quickly locate the cause of the fault after it occurs.

[0027] It also includes a remote monitoring platform connected to the throttle electrical control system, which is used for remotely monitoring and controlling the operating status of the throttle, and receiving and processing fault handling instructions from the throttle electrical control system.

[0028] A throttle electrical control method includes the throttle electrical control system as described above, and further includes the following steps: Step 1: Real-time collection of the inlet pressure, outlet pressure, flow rate and current opening of the throttle; Step 2: Convert the collected basic data into electrical signal energy and accumulate it to obtain the electrical signal energy function ; Step 3: Based on the electrical signal energy function , preset fluid pressure setting value and fluid flow setting value, and calculate the adjustment value of the throttle opening through the control algorithm ; Step 4: Calculate the throttle opening adjustment value During the process, the error signal is monitored in real time The size and change rate of the fault, as well as the preset fault judgment threshold ; Step 5: When the error signal Exceeding the fault judgment threshold When the error signal Different fault handling instructions are issued according to the rate of change ; Step 6: Follow the troubleshooting instructions Take appropriate troubleshooting measures, including adjusting throttle opening, issuing early warning signals and monitoring system status.

[0029] Embodiment 2: The present invention provides a throttle electrical control system, comprising: The basic data acquisition and conversion module is used to collect the inlet pressure, outlet pressure, flow rate and current opening of the throttle in real time, and convert these basic data into electrical signal energy for accumulation to obtain the electrical signal energy function. ; The control algorithm and logic judgment module is used to obtain the electrical signal energy function based on the basic data acquisition and conversion module. , and the preset fluid pressure setting and fluid flow setting , the adjustment value of the throttle opening is calculated through the control algorithm ; Intelligent fault processing module, used to calculate the throttle opening adjustment value in the control algorithm and logic judgment module During the process, the error signal is monitored in real time The size and change rate of the fault, as well as the preset fault judgment threshold When the error signal exceeds the fault judgment threshold, different fault handling instructions are issued according to the change rate of the error signal. .

[0030] As can be seen from the above, this system integrates multiple key modules to achieve efficient and accurate control and fault handling; the system first obtains multiple key operating parameters of the throttle in real time through the basic data acquisition and conversion module, including inlet pressure, outlet pressure, flow rate and current opening, and converts these parameters into electrical signal energy for accumulation to form an electrical signal energy function; then, the control algorithm and logic judgment module uses this function and the preset fluid pressure and flow setting values ​​to accurately calculate the adjustment value of the throttle opening through advanced control algorithms to achieve precise control of the fluid flow; at the same time, the intelligent fault handling module continuously monitors the error signal during the control process. Once the error exceeds the preset threshold, the corresponding fault handling instructions are flexibly issued according to the change rate of the error signal to ensure that the system can respond and handle potential faults in a timely manner, thereby effectively improving the stability and reliability of the throttle electrical control system.

[0031] Embodiment 3: This embodiment is basically the same as the previous embodiment, except that it also includes an electrical signal energy function It is expressed as: ; in, is the inlet pressure, is the outlet pressure, For flow, is the current opening of the throttle, is the time variable, The current time point.

[0032] Specifically, the control algorithm uses a proportional-integral-differential controller, and the adjustment value of the throttle opening It is expressed as: ; in, is the error signal, defined as the difference between the actual pressure and the set pressure, , , They are proportional, integral and differential gain coefficients respectively, which are determined through experiments and optimization algorithms.

[0033] Specific fault handling instructions It is expressed as: in, For fault handling instructions, Indicates that the system is in normal state. It indicates that it is necessary to adjust the throttle opening or take other measures to reduce the error. Indicates that system status requires monitoring but no immediate action is required.

[0034] The control algorithm and logic judgment module also includes the processing and analysis of the throttle historical data to optimize the performance and accuracy of the control algorithm.

[0035] The intelligent fault handling module also includes fault warning and fault diagnosis functions, which can issue a warning signal in advance before a fault occurs and quickly locate the cause of the fault after it occurs.

[0036] Specifically, it also includes a remote monitoring platform connected to the throttle electrical control system, which is used to remotely monitor and control the operating status of the throttle, and receive and process fault handling instructions from the throttle electrical control system.

[0037] From the above, it can be seen that the throttle electrical control system not only has the function of real-time data acquisition, conversion and control algorithm to calculate the throttle opening adjustment value, but also clarifies the specific expression of the electrical signal energy function, which integrates the throttle inlet pressure, outlet pressure, flow, current opening and time variables; in addition, the system adopts the proportional-integral-differential (PID) controller as the core control algorithm, which accurately calculates the error signal and adjusts the throttle opening according to the proportional, integral and differential gain coefficients; the intelligent fault handling module not only monitors the error signal, but also issues fault handling instructions according to the signal change rate, and has fault warning and fault diagnosis functions, which can give early warning and quickly locate faults; the system also integrates a remote monitoring platform to realize remote monitoring and control of the throttle operating status, as well as the reception and processing of fault handling instructions; these enhanced functions jointly improve the intelligence level and operation efficiency of the throttle electrical control system.

[0038] Embodiment 4: This embodiment is basically the same as the previous embodiment, except that it further comprises a throttle electrical control method, comprising the throttle electrical control system as described above, and further comprising the following steps: Step 1: Real-time collection of the inlet pressure, outlet pressure, flow rate and current opening of the throttle; Step 2: Convert the collected basic data into electrical signal energy and accumulate it to obtain the electrical signal energy function ; Step 3: Based on the electrical signal energy function , preset fluid pressure setting value and fluid flow setting value, and calculate the adjustment value of the throttle opening through the control algorithm ; Step 4: Calculate the throttle opening adjustment value During the process, the error signal is monitored in real time The size and change rate of the fault, as well as the preset fault judgment threshold ; Step 5: When the error signal Exceeding the fault judgment threshold When the error signal Different fault handling instructions are issued according to the rate of change ; Step 6: Follow the troubleshooting instructions Take appropriate troubleshooting measures, including adjusting throttle opening, issuing early warning signals and monitoring system status.

[0039] As can be seen from the above, this method first collects the key operating parameters of the throttle in real time through the throttle electrical control system, including inlet pressure, outlet pressure, flow rate and current opening; then, the collected data is converted into electrical signal energy and accumulated to form an electrical signal energy function; then, the function is used with the preset fluid pressure and flow setting values ​​to accurately calculate the adjustment value of the throttle opening through advanced control algorithms; during the control process, the method also monitors the size and change rate of the error signal in real time, as well as the preset fault judgment threshold. Once the error exceeds the threshold, a fault handling instruction is flexibly issued according to the change rate of the error signal, and corresponding fault handling measures are taken, such as adjusting the throttle opening, issuing a warning signal or monitoring the system status; this method not only improves the accuracy and response speed of throttle control, but also enhances the system's fault handling capabilities.

[0040] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. A throttle electrical control system, characterized in that: It includes a basic data acquisition and conversion module, a control algorithm and logic judgment module, and an intelligent fault processing module. The control algorithm and logic judgment module is provided with a throttle historical data processing and analysis unit, and the intelligent fault processing module is provided with a fault warning and fault diagnosis unit.

2. A throttle electrical control system according to claim 1, characterized in that: The basic data acquisition and conversion module is used to collect the inlet pressure, outlet pressure, flow rate and current opening of the throttle in real time, and convert these basic data into electrical signal energy for accumulation to obtain the electrical signal energy function.

3. A throttle electrical control system according to claim 2, characterized in that: The electrical signal energy function is an integral function of the sum of the inlet pressure and the outlet pressure and the flow rate and the throttle opening within the time range of 0 to t.

4. A throttle electrical control system according to claim 1, characterized in that: The control algorithm and logic judgment module is used to calculate the adjustment value of the throttle opening through the control algorithm according to the electrical signal energy function obtained by the basic data acquisition and conversion module, as well as the preset fluid pressure setting value and fluid flow setting value.

5. A throttle electrical control system according to claim 4, characterized in that: The control algorithm adopts a proportional-integral-differential controller, and the adjustment value of the throttle opening is the product of the proportional coefficient and the error signal plus the integral product of the integral coefficient and the error signal from time 0 to t, plus the differential function of the differential gain coefficient and the error signal.

6. A throttle electrical control system according to claim 1, characterized in that: The intelligent fault processing module is used to monitor the size and change rate of the error signal and the preset fault judgment threshold in real time during the process of the control algorithm and the logic judgment module calculating the throttle opening adjustment value. When the error signal exceeds the fault judgment threshold, different fault processing instructions are issued according to the change rate of the error signal.

7. A throttle electrical control system according to claim 6, characterized in that: When the error signal of the fault handling instruction is less than the preset fault judgment threshold, it indicates that the system is in a normal state; when the error signal of the fault handling instruction is greater than or equal to the preset fault judgment threshold and the differential of the error signal is greater than zero, it indicates that the throttle opening needs to be adjusted and other measures need to be taken to reduce the error; when the error signal of the fault handling instruction is greater than or equal to the preset fault judgment threshold and the differential of the error signal is less than zero, it indicates that the system status needs to be monitored but no immediate action is required.

8. A throttle electrical control system according to claim 1, characterized in that: It also includes a remote monitoring platform connected to the throttle electrical control system, which is used for remotely monitoring and controlling the operating status of the throttle, and receiving and processing fault handling instructions from the throttle electrical control system.

9. A throttle electrical control method, characterized in that: The following steps are involved: Step 1: Real-time collection of the inlet pressure, outlet pressure, flow rate and current opening of the throttle; Step 2: Convert the collected basic data into electrical signal energy and accumulate them to obtain the electrical signal energy function; Step 3: Calculate the adjustment value of the throttle opening through a control algorithm according to the electrical signal energy function, the preset fluid pressure setting value and the fluid flow setting value; Step 4: In the process of calculating the throttle opening adjustment value, the size and change rate of the error signal and the preset fault judgment threshold are monitored in real time; Step 5: When the error signal exceeds the fault judgment threshold, different fault handling instructions are issued according to the change rate of the error signal; Step 6: Take appropriate troubleshooting measures according to the troubleshooting instructions.

10. A throttle electrical control method according to claim 9, characterized in that: The fault handling measures include adjusting the throttle opening, issuing an early warning signal and monitoring the system status.

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