Control method for avoiding network fault of frequency conversion system based on structure optimization

Abstract

The invention discloses a control method for avoiding network faults of a frequency conversion system based on structural optimization, which comprises the following steps of: diagnosing parameter configuration and a network topology structure of a frequency converter and a PLC (Programmable Logic Controller), and diagnosing hardware configuration and a driving power supply of a whole heating furnace PLC Ethernet control system to obtain a detection result; reconfiguring a network topology structure and a switching control unit according to a detection result, and performing communication signal anti-interference processing; designing PLC network configuration according to the reconfigured network topology structure; interference source analysis and power cable layout analysis are carried out on a main electric room of the heating furnace, and network line layout is redesigned according to an analysis result; and carrying out signal extraction and data conversion on the characteristic variables with normal network connection and carrying out data analysis to realize stability optimization control based on dynamic operation. According to the invention, optimal control for avoiding intermittent off-station network faults of the frequency conversion system based on structure optimization and multiple anti-interference design is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of steel production control, and in particular to a control method for avoiding frequency conversion system network failure based on structural optimization. Background Art

[0002] The rolling mill's twin-high-speed wire heating furnace's main power room frequency converter system experienced intermittent network failures, causing the frequency converter to trip. Remote fault resets allowed the converter to restart. This operational status significantly impacted production continuity and smooth equipment operation. Each frequency converter trip required a fault reset and restart, requiring verification of site conditions and furnace valve and ignition operations. This prolonged troubleshooting and recovery time, leading to reduced production and a significant decrease in rolling production efficiency. This in turn led to an increase in the overall energy cost per ton of steel, significantly increasing the production cost per ton of steel.

[0003] The main defects and shortcomings are:

[0004] 1. Intermittent network failures occurred in the frequency conversion system of the main power room. After the network failures, the frequency converter tripped, which led to equipment failures and production interruptions.

[0005] 2. If the equipment suddenly trips due to a network failure during normal operation, both electrical and mechanical equipment will be subjected to a strong impact, which will lead to rapid deterioration of the electrical and mechanical equipment and a significant reduction in their service life, which will lead to a significant increase in the cost of spare parts per ton of steel.

[0006] 3. During the normal operation of the heating furnace, the fan may trip and the valve may be controlled incorrectly due to network failure, which will cause fluctuations in the furnace pressure and damage to the valve body, greatly increasing the safety risk.

[0007] 4. During the normal operation of the heating furnace, the internal pressure of the pipeline related to the network failure will change irregularly, which will cause various pipelines to be damaged due to excessive pressure shock, thereby extending the fault handling time and increasing the pipeline maintenance costs.

[0008] 5. Due to the sudden interruption of the network, the high-temperature steel billet will stay near the sensor for a long time, which will cause damage to the on-site sensor and increase the cost of sensor spare parts. Summary of the Invention

[0009] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide an optimized control method for avoiding intermittent station drop network failure of the frequency conversion system based on structural optimization and multiple anti-interference designs.

[0010] The technical solution adopted by the present invention to solve the technical problem is: a control method for avoiding network failure of a frequency conversion system based on structural optimization, comprising the following steps:

[0011] Diagnose the parameter configuration and network topology of the inverter and PLC, as well as the hardware configuration and drive power supply of the entire heating furnace PLC Ethernet control system to obtain test results;

[0012] Reconfigure the network topology and switch control unit based on the detection results, and perform anti-interference processing on communication signals;

[0013] Design PLC network configuration based on reconfigured network topology;

[0014] Analyze the interference sources and power cable layout of the main electrical room of the heating furnace, and redesign the network line layout based on the analysis results;

[0015] The characteristic variables of normal network connection are subjected to signal extraction and data conversion for data analysis to achieve stability optimization control based on dynamic operation.

[0016] As a further improvement of the present invention: the diagnosis of the parameter configuration and network topology of the inverter and PLC includes:

[0017] Diagnose the control components. After completing all diagnoses, determine whether the cause of the fault is interference during network signal transmission;

[0018] The control components include: basic parameter control unit, network communication control unit, signal reception control unit, data transmission mode control unit, and network topology control unit.

[0019] As a further improvement of the present invention: the diagnosis of the hardware configuration and driving power supply of the entire heating furnace PLC Ethernet control system includes:

[0020] Diagnose the network cable combination connection control unit, double-ended connector matching connection control unit, power supply control unit, power drive mode control unit, and cross-component shared power control unit to determine whether the cause of the fault is located in the network conversion connector link and interference in the shared power supply cross-component transmission process.

[0021] As a further improvement of the present invention: the reconfiguration of the network topology and the switching control unit according to the detection result includes:

[0022] When there is a fault in the diagnostic structure, the network topology is reconfigured and the structure of the double-high-line heating furnace PLC Ethernet is changed from a bus type to a star connection structure.

[0023] As a further improvement of the present invention: the reconfiguration of the network topology and the switching control unit according to the detection result further includes:

[0024] A network exchange center control unit is designed in a main electrical room in the double-high-speed wire heating furnace area. First, a switch is added as a communication center in a star topology structure. Then, all the communication control components of the inverter are connected to the switch using Ethernet cables, and all communication lines are protected from interference based on shielded layer connections.

[0025] As a further improvement of the present invention: the anti-interference processing based on the shielding layer connection is achieved by designing the shielding layer and optimizing the grounding of the shielding layer, thereby realizing the control process of optimized anti-interference processing.

[0026] As a further improvement of the present invention: the PLC network configuration is designed based on the reconfiguration of the network topology:

[0027] The PLC network configuration was redesigned at the engineer station in the main electrical room dedicated to PLC control of the double-high-line heating furnace to achieve the integration and matching of the PLC network configuration and the star connection structure, and then the hardware configuration of the new PLC network configuration was saved, compiled, and downloaded.

[0028] As a further improvement of the present invention: the engineer station is a control station based on a combination of logic and interlocking conditions, which is composed of an industrial computer, a visualization screen, a network connection component, and a drive control program.

[0029] As a further improvement of the present invention, the interference source analysis and power cable layout analysis of the main electrical room of the heating furnace and the redesign of the network line layout according to the analysis results also include:

[0030] The interference source analysis and the overall layout of the power cables in the two main electrical rooms of the double-high-line heating furnace were analyzed. Then, based on the analysis results, the network line layout was redesigned to avoid all interference sources and power cables. At the same time, all network interface connections were double-shielded and grounded, thereby achieving optimal processing of the network lines.

[0031] As a further improvement of the present invention, the signal extraction and data conversion of the characteristic variables of the normal network connection for data analysis to achieve stability optimization control based on dynamic operation includes:

[0032] The characteristic variables of normal network connection are subjected to signal extraction and data conversion, and then new variables are created, archived, converted, trends are designed, and abnormal node alarms are intelligently generated, thereby realizing big data tracking of characteristic variables with normal network connection and intelligent reminders and intelligent records of abnormal nodes. Then, based on the aforementioned data trends and abnormal records, the local parameters and configurations that have not achieved optimal control are optimized again, thereby realizing overall stability optimization control based on dynamic operation.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] The present invention implements optimal control to avoid intermittent network failures of the frequency conversion system based on structural optimization and multiple anti-interference designs by diagnosing parameter configuration and network topology, hardware configuration and drive power supply, designing a new network topology, designing a switch integrated control unit, optimizing network configuration and hardware configuration, optimizing network line layout and interface, and optimizing overall stability based on dynamic operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 Schematic diagram of the method of the present invention.

[0036] Figure 2 It is a schematic diagram of the implementation process of the present invention. DETAILED DESCRIPTION

[0037] In order to enable a clear and complete understanding of the technical solution, the present invention is further described in conjunction with the embodiments and drawings. Obviously, the described embodiments are only some embodiments of the present invention, and all other embodiments obtained by technical personnel in the relevant field without making creative work are within the scope of protection of the present invention.

[0038] It will be understood that when used in this specification and the appended claims, the terms “comprises” and “comprising” indicate the presence of described features, integers, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof.

[0039] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the present invention. As used in the specification and appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0040] It should be further understood that the term "and / or" used in the present description and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0041] An embodiment of the present invention provides a control method for avoiding network failure of a frequency conversion system based on structural optimization, comprising the following steps:

[0042] Diagnose the parameter configuration and network topology of the inverter and PLC, as well as the hardware configuration and drive power supply of the entire heating furnace PLC Ethernet control system to obtain test results;

[0043] Reconfigure the network topology and switch control unit based on the detection results, and perform anti-interference processing on communication signals;

[0044] Design PLC network configuration based on reconfigured network topology;

[0045] Analyze the interference sources and power cable layout of the main electrical room of the heating furnace, and redesign the network line layout based on the analysis results;

[0046] The characteristic variables of normal network connection are subjected to signal extraction and data conversion for data analysis to achieve stability optimization control based on dynamic operation.

[0047] In some embodiments of the present invention, the diagnosing the parameter configuration and network topology of the inverter and PLC includes:

[0048] Diagnose the control components. After completing all diagnoses, determine whether the cause of the fault is interference during network signal transmission;

[0049] The control components include: basic parameter control unit, network communication control unit, signal reception control unit, data transmission mode control unit, and network topology control unit.

[0050] In some embodiments of the present invention, the diagnosis of the hardware configuration and driving power supply of the entire heating furnace PLC Ethernet control system includes:

[0051] Diagnose the network cable combination connection control unit, double-ended connector matching connection control unit, power supply control unit, power drive mode control unit, and cross-component shared power control unit to determine whether the cause of the fault is located in the network conversion connector link and interference in the shared power supply cross-component transmission process.

[0052] In some embodiments of the present invention, reconfiguring the network topology and switching the control unit according to the detection result includes:

[0053] When there is a fault in the diagnostic structure, the network topology is reconfigured and the structure of the double-high-line heating furnace PLC Ethernet is changed from a bus type to a star connection structure.

[0054] In some embodiments of the present invention, reconfiguring the network topology and switching the control unit according to the detection result further includes:

[0055] A network exchange center control unit is designed in a main electrical room in the double-high-speed wire heating furnace area. First, a switch is added as a communication center in a star topology structure. Then, all the communication control components of the inverter are connected to the switch using Ethernet cables, and all communication lines are protected from interference based on shielded layer connections.

[0056] In some embodiments of the present invention, the anti-interference processing based on the shielding layer connection is a control process of achieving optimized anti-interference processing by designing the shielding layer and optimizing the grounding of the shielding layer.

[0057] In some embodiments of the present invention, the PLC network configuration is designed based on the reconfigured network topology:

[0058] The PLC network configuration was redesigned at the engineer station in the main electrical room dedicated to PLC control of the double-high-line heating furnace to achieve the integration and matching of the PLC network configuration and the star connection structure, and then the hardware configuration of the new PLC network configuration was saved, compiled, and downloaded.

[0059] In some embodiments of the present invention, the engineer station is a control station composed of an industrial computer, a visualization screen, a network connection component, and a drive control program based on a combination of logic and interlocking conditions.

[0060] In some embodiments of the present invention, the interference source analysis and power cable layout analysis of the main electrical room of the heating furnace and the redesign of the network line layout based on the analysis results further include:

[0061] The interference source analysis and the overall layout of the power cables in the two main electrical rooms of the double-high-line heating furnace were analyzed. Then, based on the analysis results, the network line layout was redesigned to avoid all interference sources and power cables. At the same time, all network interface connections were double-shielded and grounded, thereby achieving optimal processing of the network lines.

[0062] In some embodiments of the present invention, the signal extraction and data conversion of characteristic variables of normal network connection for data analysis to achieve stability optimization control based on dynamic operation includes:

[0063] The characteristic variables of normal network connection are subjected to signal extraction and data conversion, and then new variables are created, archived, converted, trends are designed, and abnormal node alarms are intelligently generated, thereby realizing big data tracking of characteristic variables with normal network connection and intelligent reminders and intelligent records of abnormal nodes. Then, based on the aforementioned data trends and abnormal records, the local parameters and configurations that have not achieved optimal control are optimized again, thereby realizing overall stability optimization control based on dynamic operation.

[0064] The main issues addressed by this application are as follows:

[0065] 1. Solve the problem of intermittent network failure in the frequency conversion system of the main power room, which leads to frequency converter tripping, equipment failure and production interruption, thereby improving the production rolling operation rate and reducing the production cost per ton of steel.

[0066] 2. Solve the problem that when the equipment suddenly trips due to network failure during normal operation, the electrical equipment and mechanical equipment will be subjected to strong impact, which will lead to rapid deterioration of the electrical equipment and mechanical equipment and a significant reduction in their service life, thereby significantly reducing the cost of spare parts per ton of steel.

[0067] 3. Solve the problem of fan tripping and valve control disorder caused by network failure during normal operation of the heating furnace, which leads to fluctuation of furnace pressure and damage to the valve body, thereby greatly reducing related safety risks.

[0068] 4. Solve the problem that during the normal operation of the heating furnace, the internal pressure of the pipeline related to the network failure changes irregularly, which leads to the damage of various pipelines due to excessive pressure shock, thereby avoiding the extension of fault handling time and significantly reducing the cost of pipeline maintenance.

[0069] 5. Solve the problem of damage to on-site sensors caused by high-temperature steel billets staying near the sensor for a long time due to sudden network interruption, thereby significantly reducing the cost of sensor spare parts.

[0070] Parameter configuration and network topology diagnosis

[0071] The parameter configuration and network topology of the inverter and PLC are diagnosed, mainly the following control components: basic parameter control unit, network communication control unit, signal reception control unit, data transmission mode control unit, network topology control unit. After completing all the diagnoses, the cause of the fault is determined to be interference during network signal transmission.

[0072] Furthermore, a frequency converter (VFD) refers to the frequency conversion device that drives the roller motors in the double-high-speed wire heating furnaces of a steel mill. A PLC (Programmable Logic Controller) is a component used to program and logically control the controlled objects. Parameter configuration refers to the process of optimizing and controlling the various functional parameters, attribute parameters, and extended parameters of the VFD and PLC. Network topology refers to the structural form used to combine network connections based on functionality.

[0073] Hardware configuration and drive power diagnosis

[0074] The hardware configuration and driving power supply of the entire heating furnace PLC Ethernet control system are diagnosed, mainly the following control components: network cable combination connection control unit, double-ended connector matching connection control unit, power supply control unit, power drive mode control unit, cross-component shared power supply control unit. After completing all the diagnoses, it is determined that the cause of the fault is located at the network conversion connector link and the interference in the transmission process of the shared power supply across components.

[0075] Furthermore, the entire heating furnace PLC Ethernet control system refers to the control system composed of all PLCs and Ethernet networks in the rolling mill's double-high-speed wire heating furnace. The hardware configuration refers to the various electrical components that make up the network, specifically including communication boards, switches, network connectors, and converters. The power supply is the control component that provides power to the various electrical components and provides a power carrier for input and output signals. The network converter is the connection between the communication network cable and the signal receiving board.

[0076] Design new network topology

[0077] Reconfigure the network topology and change the structure of the PLC Ethernet of the double-high-line heating furnace from bus type to star connection structure. The specific implementation steps are as follows: design the star connection structure diagram, combine the relevant electrical components according to the star connection structure diagram, and conduct power-on test.

[0078] Furthermore, reconfiguring the network topology refers to the control process of redesigning and reorganizing the Ethernet network topology. A bus connection is a PLC Ethernet structure. A star connection is another PLC Ethernet structure. Designing a star connection structure diagram involves designing the routing and connection paths of communication boards, switches, network connectors, and converters within the network based on the star connection structure.

[0079] Design switch integrated control unit

[0080] A network exchange center control unit was designed in a main electrical room in the double-high-speed wire heating furnace area. First, a switch was added as the communication center in a star topology. All inverter communication control components were then connected to this switch using Ethernet cables. All communication lines were shielded for interference prevention.

[0081] Furthermore, the "double-high-speed wire heating furnace area" refers to a process link and equipment area within the double-high-speed wire production process. A "main electrical room" refers to the electrical control room, designated Main Electrical Room No. 1, located in the double-high-speed wire heating furnace area. A network switching center control unit refers to a control component that combines network connectivity and signal input and output. A switch refers to a control component used for network signal transmission. Shielded layer connection-based anti-interference processing refers to a control process that achieves optimized anti-interference processing by designing the shield layer and optimizing its grounding.

[0082] Optimize network configuration and hardware configuration

[0083] The PLC network configuration was redesigned at the engineer station in the main electrical room dedicated to PLC control of the double-high-line heating furnace to achieve the integration and matching of the PLC network configuration and the star connection structure, and then the hardware configuration of the new PLC network configuration was saved, compiled, and downloaded.

[0084] Furthermore, the dedicated PLC control main electrical room for the double-high-speed wire heating furnace refers to the PLC control room for electrical equipment located five meters below the platform in the double-high-speed wire heating furnace area. The engineer station is a control station composed of an industrial computer, visualization screens, network connection components, and driver control programs, based on a combination of logic and interlocking conditions. Saving, compiling, and downloading refer to the associated operations required after the hardware configuration of the new PLC network configuration is completed to ensure functional integrity and long-term data preservation.

[0085] Optimize network line layout and interfaces

[0086] First, the interference sources of the two main electrical rooms of the double-high-line heating furnace and the overall layout of the power cables were analyzed. Then, based on the analysis results, the network line layout was redesigned to avoid all interference sources and power cables. At the same time, all network interface connections were double-shielded and grounded to achieve optimal processing of the network lines.

[0087] Furthermore, the two main electrical rooms of the dual-high-speed wire heating furnace refer to the main electrical room in the dual-high-speed wire heating furnace area and the main electrical room dedicated to the PLC control of the dual-high-speed wire heating furnace. Both main electrical rooms are located below the five-meter platform, with the main electrical room in the dual-high-speed wire heating furnace area on the south side and the main electrical room dedicated to the PLC control of the dual-high-speed wire heating furnace on the north side. Interference source analysis is the process of systematically sorting out and accurately analyzing all interference sources that may cause signal interference. Overall power cable layout analysis refers to the process of systematically analyzing the power cable routing, transmission paths, and spacing areas.

[0088] Design independent matching power control components

[0089] An independent matching power supply control component based on intelligent isolation is designed. A 24V power adapter is designed and added to the PLC control cabinet of the double-high-line heating furnace to provide a stable and independent 24V power supply for the PLC Ethernet switch, thereby preventing the PLC Ethernet switch from being affected by power grid fluctuations and other external line short circuits, grounding and other faults.

[0090] Furthermore, intelligent isolation refers to a control process that achieves complete isolation between two devices at the source of their drive through innovative design. Independently matched power control components design power drive combinations to independently connect devices in a local area. A 24V power adapter is a power control component that converts 220V power to 24V while also improving voltage stability.

[0091] Overall stability optimization based on dynamic operation

[0092] After completing the relevant design and optimization, the characteristic variables with normal network connection are subjected to signal extraction and data conversion, and then new variables are created, archived, converted, trends are designed, and abnormal node alarms are intelligently generated, thereby realizing big data tracking of characteristic variables with normal network connection and intelligent reminders and intelligent records of abnormal nodes. Then, based on the aforementioned data trends and abnormal records, the local parameters and configurations that have not achieved optimal control are optimized again, thereby achieving overall stability optimization control based on dynamic operation.

[0093] Furthermore, a characteristic variable indicating a healthy network connection refers to a visual output signal that reflects the characteristic attributes of a healthy network connection. Signal extraction is the control process of isolating the characteristic variable indicating a healthy network connection from the system and then outputting the signal. Data conversion is the control process of converting the characteristic variable indicating a healthy network connection based on its data type and format. Variable creation, archive conversion, and trend design are specific methods for visually identifying and detecting characteristic variables indicating a healthy network connection.

[0094] The present invention designs a control method for avoiding intermittent network failures of frequency conversion systems based on structural optimization and multiple anti-interference designs. Through parameter configuration and network topology diagnosis, hardware configuration and drive power supply diagnosis, design of a new network topology, design of a switch integrated control unit, optimization of network configuration and hardware configuration, optimization of network line layout and interface, design of independently matched power supply control components, and overall stability optimization based on dynamic operation, the present invention realizes optimal control of avoiding intermittent network failures of frequency conversion systems based on structural optimization and multiple anti-interference designs.

[0095] In summary, after reading the present invention document, ordinary technicians in this field can make various other corresponding transformation schemes based on the technical solutions and technical concepts of the present invention without creative mental work, and all of them fall within the scope of protection of the present invention.

Claims

1. A control method for avoiding frequency conversion system network failure based on structural optimization, characterized in that: The following steps are involved: Diagnose the parameter configuration and network topology of the inverter and PLC, as well as the hardware configuration and drive power supply of the entire heating furnace PLC Ethernet control system to obtain test results; Reconfigure the network topology and switch control unit based on the detection results, and perform anti-interference processing on communication signals; Design PLC network configuration based on reconfigured network topology; Analyze the interference sources and power cable layout of the main electrical room of the heating furnace, and redesign the network line layout based on the analysis results; The characteristic variables of normal network connection are subjected to signal extraction and data conversion for data analysis to achieve stability optimization control based on dynamic operation.

2. A control method for avoiding frequency conversion system network failure based on structural optimization according to claim 1, characterized in that: The diagnosis of the inverter and PLC parameter configuration and network topology structure includes: Diagnose the control components. After completing all diagnoses, determine whether the cause of the fault is interference during network signal transmission; The control components include: basic parameter control unit, network communication control unit, signal reception control unit, data transmission mode control unit, and network topology control unit.

3. A control method for avoiding frequency conversion system network failure based on structural optimization according to claim 2, characterized in that: The diagnosis of the hardware configuration and drive power supply of the entire heating furnace PLC Ethernet control system includes: Diagnose the network cable combination connection control unit, double-ended connector matching connection control unit, power supply control unit, power drive mode control unit, and cross-component shared power control unit to determine whether the cause of the fault is located in the network conversion connector link and interference in the shared power supply cross-component transmission process.

4. A control method for avoiding frequency conversion system network failure based on structural optimization according to claim 3, characterized in that: The reconfiguration of the network topology and the switching control unit according to the detection result includes: When there is a fault in the diagnostic structure, the network topology is reconfigured and the structure of the double-high-line heating furnace PLC Ethernet is changed from a bus type to a star connection structure.

5. A control method for avoiding frequency conversion system network failure based on structural optimization according to claim 4, characterized in that: The reconfiguration of the network topology and the switching control unit according to the detection result further includes: A network exchange center control unit is designed in a main electrical room in the double-high-speed wire heating furnace area. First, a switch is added as a contact center in a star topology structure. Then, all the communication control components of the inverter are connected to the switch using Ethernet cables, and all communication lines are protected from interference based on shielded layer connections.

6. A control method for avoiding frequency conversion system network failure based on structural optimization according to claim 5, characterized in that: The anti-interference processing based on the shielding layer connection is a control process of realizing the optimized anti-interference processing by designing the shielding layer and optimizing the grounding of the shielding layer.

7. A control method for avoiding frequency conversion system network failure based on structural optimization according to claim 1, characterized in that: The PLC network configuration is designed based on reconfiguring the network topology: The PLC network configuration was redesigned at the engineer station in the main electrical room dedicated to PLC control of the double-high-line heating furnace to achieve the integration and matching of the PLC network configuration and the star connection structure, and then the hardware configuration of the new PLC network configuration was saved, compiled, and downloaded.

8. A control method for avoiding frequency conversion system network failure based on structural optimization according to claim 7, characterized in that: The engineer station is a control station composed of an industrial computer, a visualization screen, a network connection component, and a drive control program based on a combination of logic and interlocking conditions.

9. A control method for avoiding frequency conversion system network failure based on structural optimization according to claim 9, characterized in that: The interference source analysis and power cable layout analysis of the main electrical room of the heating furnace and the redesign of the network line layout based on the analysis results also include: The interference source analysis and the overall layout of the power cables in the two main electrical rooms of the double-high-line heating furnace were analyzed. Then, based on the analysis results, the network line layout was redesigned to avoid all interference sources and power cables. At the same time, all network interface connections were double-shielded and grounded, thereby achieving optimal processing of the network lines.

10. The control method for avoiding frequency conversion system network failure based on structural optimization according to claim 1, characterized in that: The signal extraction and data conversion of the characteristic variables of the normal network connection for data analysis to achieve stability optimization control based on dynamic operation includes: The characteristic variables of normal network connection are subjected to signal extraction and data conversion, and then new variables are created, archived, converted, trends are designed, and abnormal node alarms are intelligently generated, thereby realizing big data tracking of characteristic variables with normal network connection and intelligent reminders and intelligent records of abnormal nodes. Then, based on the aforementioned data trends and abnormal records, the local parameters and configurations that have not achieved optimal control are optimized again, thereby realizing overall stability optimization control based on dynamic operation.

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