Simulation method for side equipment of production operation support system

Abstract

The invention provides a simulation method for side equipment of a production operation support system. The simulation method comprises the following steps: constructing a simulation model of a production data one-way acquisition device, an intelligent gateway device and a production analysis processing host device; in the simulation process, the production data one-way acquisition device receives first data in a client mode and sends the first data to the intelligent gateway in a server mode; the intelligent gateway receives the first data and the second data of the auxiliary equipment in a client mode, and forwards the first data and the second data to the production analysis processing host in a server mode; and after receiving the data, the production analysis processing host uploads the data to the Internet of Things platform in a server mode. And one-way communication between the production data one-way acquisition device and the intelligent gateway is realized through the switch and the forward isolation device. By simulating the data interaction and processing flow between the side devices, the simulation precision is improved, the problem that the complex communication process of the side devices of the power system is difficult to reproduce in the prior art is solved, and reliable support is provided for system optimization.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power system substation equipment, in particular to a device model of a production operation support system edge-side device and an application method thereof. BACKGROUND

[0002] With the continuous expansion of the scale and the increasing complexity of the power system, the traditional power monitoring method has been difficult to meet the needs of modern power grid operation. Traditional power monitoring mainly relies on manual inspection and offline data analysis, which is not only inefficient, but also difficult to grasp the equipment operation state in real time, which may lead to delayed fault response and even cause large-scale power outages and other serious consequences. In recent years, the rapid development of Internet of Things, big data and artificial intelligence technology has provided a new solution for power system monitoring. The production operation support system collects real-time data such as voltage, current, temperature and other key operation data by deploying sensor networks on power grid equipment, and uses cloud computing platforms for centralized processing and analysis. This real-time data-driven monitoring method can not only quickly find potential faults, but also can realize fault prediction and accurate positioning through intelligent algorithms, thereby significantly improving the reliability and operation efficiency of the power grid. SUMMARY

[0003] The present application provides a simulation method of a production operation support system edge-side device, which solves the technical problem that the existing simulation technology cannot fully simulate the complex interaction process of the production operation support system edge-side device in power system communication.

[0004] The present application provides a simulation method of a production operation support system edge-side device, which solves the technical problem that the existing simulation technology cannot fully simulate the complex interaction process of the production operation support system edge-side device in power system communication.

[0005] Obtain the device model of the edge-side device of the production operation support system, which includes a production data one-way collection device, an intelligent gateway, and a production analysis processing host.

[0006] Set up a switch and a forward isolation device between the device model of the production data one-way collection device and the device model of the intelligent gateway to realize one-way data transmission from the device model of the one-way collection device to the device model of the intelligent gateway.

[0007] Simulate the device model of the edge-side device, and connect the device models of the edge-side device in sequence according to the production operation support system edge-side topology structure, simulate the data flow between the production data one-way collection device, the intelligent gateway, and the production analysis processing host, and the functions of each device model.

[0008] From the above technical solutions, the present application has the following advantages:

[0009] The application provides a simulation method for a production operation support system side device, which comprises a production data one-way collection device, an intelligent gateway and a production analysis processing host, simulates data transmission and instruction sending of the production operation support system side, and solves the problem of inaccurate simulation of data transmission, processing and instruction sending of the production operation support system side device in a complex power system environment, thereby providing more accurate technical support for power system communication simulation. BRIEF DESCRIPTION OF DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description only represent some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of the provided drawings.

[0011] Figure 1 The application provides a simulation method for a production operation support system side device, which comprises a production data one-way collection device, an intelligent gateway and a production analysis processing host, simulates data transmission and instruction sending of the production operation support system side, and solves the problem of inaccurate simulation of data transmission, processing and instruction sending of the production operation support system side device in a complex power system environment, thereby providing more accurate technical support for power system communication simulation.

[0012] Figure 2 The application provides a simulation method for a production operation support system side device, which comprises a production data one-way collection device, an intelligent gateway and a production analysis processing host, simulates data transmission and instruction sending of the production operation support system side, and solves the problem of inaccurate simulation of data transmission, processing and instruction sending of the production operation support system side device in a complex power system environment, thereby providing more accurate technical support for power system communication simulation.

[0013] Figure 3 The application provides a simulation method for a production operation support system side device, which comprises a production data one-way collection device, an intelligent gateway and a production analysis processing host, simulates data transmission and instruction sending of the production operation support system side, and solves the problem of inaccurate simulation of data transmission, processing and instruction sending of the production operation support system side device in a complex power system environment, thereby providing more accurate technical support for power system communication simulation.

[0014] Figure 4 The application provides a simulation method for a production operation support system side device, which comprises a production data one-way collection device, an intelligent gateway and a production analysis processing host, simulates data transmission and instruction sending of the production operation support system side, and solves the problem of inaccurate simulation of data transmission, processing and instruction sending of the production operation support system side device in a complex power system environment, thereby providing more accurate technical support for power system communication simulation.

[0015] Figure 5 The application provides a simulation method for a production operation support system side device, which comprises a production data one-way collection device, an intelligent gateway and a production analysis processing host, simulates data transmission and instruction sending of the production operation support system side, and solves the problem of inaccurate simulation of data transmission, processing and instruction sending of the production operation support system side device in a complex power system environment, thereby providing more accurate technical support for power system communication simulation.

[0016] Figure 6 The application provides a simulation method for a production operation support system side device, which comprises a production data one-way collection device, an intelligent gateway and a production analysis processing host, simulates data transmission and instruction sending of the production operation support system side, and solves the problem of inaccurate simulation of data transmission, processing and instruction sending of the production operation support system side device in a complex power system environment, thereby providing more accurate technical support for power system communication simulation.

[0017] Figure 7 The application provides a simulation method for a production operation support system side device, which comprises a production data one-way collection device, an intelligent gateway and a production analysis processing host, simulates data transmission and instruction sending of the production operation support system side, and solves the problem of inaccurate simulation of data transmission, processing and instruction sending of the production operation support system side device in a complex power system environment, thereby providing more accurate technical support for power system communication simulation. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be described below with reference to the drawings. Obviously, the described embodiments only represent some embodiments of the present application, and other embodiments can be obtained by those skilled in the art without any creative effort on the basis of the provided drawings.

[0019] The flowchart shown in the drawing is only an example and does not necessarily include all the contents and operations / steps, nor does it have to be executed in the order described. For example, some operations / steps can be further divided, combined or partially merged, so the actual execution order can be changed according to the actual situation.

[0020] Referring to Figure 1 , the embodiment provides a simulation method of a production operation support system side device.

[0021] Some embodiments of the application will be described in detail below with reference to the accompanying drawings. The following embodiments and features in the embodiments can be combined with each other without conflict.

[0022] In some embodiments, the simulation method can be based on OPNET simulation software, but is not limited to OPNET simulation software. Other network simulation software such as NS-2, MATLAB, etc. can also be used to implement the simulation method of the embodiment.

[0023] Referring to Figure 1 , the simulation method of the production operation support system side device of the embodiment includes the following steps S110 to S130.

[0024] Step S110, obtaining a device model of the production operation support system side device, the production operation support system side device including a production data unidirectional acquisition device, an intelligent gateway, and a production analysis processing host.

[0025] In some embodiments, the connection mode of the production operation support system side device is as shown in Figure 2 , including the connection mode of the station control layer network, auxiliary equipment, production data unidirectional acquisition device, forward isolation device, intelligent gateway, production analysis processing host, and Internet of Things platform.

[0026] Referring to Figure 3 , Figure 3 , the simulation diagram of the production data unidirectional acquisition device in some embodiments is an OSI seven-layer network model, including an application layer, an interface layer module, an ARP layer module, a network layer module, a transmission layer module, a plurality of data link layer sub-modules, and corresponding physical layer sub-modules. The application layer module includes a first information acquisition sub-module and a first information sending sub-module. First data is received by the physical layer sub-module and transmitted layer by layer to the information acquisition sub-module in the application layer module, and then transmitted to the first information sending sub-module. The information sending sub-module converts it into a communication message in the format of DL / T 860 protocol, MODBUS protocol, IEC-104 protocol, DL / T 645 protocol, etc., and then sends it to the intelligent gateway after being transmitted layer by layer to the physical layer sub-module.

[0027] In some embodiments, the first data includes operation data of the power system, state data of the power equipment, and operation data of the auxiliary equipment.

[0028] For example, the production data one-way collection device determines the client and / or server working mode according to the working state setting of the received data and the sent data. When the production data one-way collection device receives the first data from the station control layer network and the auxiliary equipment, the application layer module of the production data one-way collection device is in the client working mode, and the first information receiving submodule operates. When the production data one-way collection device sends data to the intelligent gateway, the application layer module of the production data one-way collection device is in the server working mode, and the first information sending submodule operates.

[0029] In some embodiments, referring to Figure 4 For example, the simulation method provides a simulation schematic diagram of an intelligent gateway. The intelligent gateway is an OSI seven-layer network model, which includes an application layer, an interface layer module, an ARP layer module, a network layer module, a transmission layer module, a plurality of data link layer submodules, and corresponding physical layer submodules. The application layer module includes a second information obtaining submodule, a protocol conversion submodule, a second information sending submodule, and an instruction receiving submodule. The intelligent gateway transmits data between the application layer submodules in the form of shared memory. The intelligent gateway receives data and files of the production data one-way collection device and the auxiliary equipment and control instructions issued by the production analysis processing host through the physical layer submodule. The data and files of the production data one-way collection device and the auxiliary equipment are sent to the information obtaining submodule layer by layer along the seven-layer network and then transmitted to the protocol conversion submodule and the second information sending submodule in the form of shared memory. The protocol conversion submodule converts the data into a unified format message, and the second information sending submodule sends the unified format message to the production analysis processing host. The physical layer submodule of the intelligent gateway receives the control instructions issued by the production analysis processing host and sends them to the instruction receiving submodule layer by layer along the seven-layer network.

[0030] In some embodiments, the unified format message can include MQTT protocol, GB28181, and ONVIF.

[0031] For example, the intelligent gateway determines the client and / or server working mode according to the working state setting of the received data and the sent data. When the production data one-way collection device receives data from the production data one-way collection device, the application layer module is in the client working mode, and the second information receiving submodule operates. When the intelligent gateway sends data to the production analysis processing host, the application layer module is in the server working mode, and the second information sending submodule operates.

[0032] In some embodiments, referring toFigure 5 The simulation method provides a simulation diagram of a production analysis processing host, the production analysis processing host is an OSI seven-layer network model, an application layer module includes an information aggregation submodule, a third information sending submodule, an information analysis submodule, and an instruction sending submodule, and data transmission can be performed between each application layer submodule of the production analysis processing host. The uniform format message sent by the intelligent gateway and the operation data and operation files of the auxiliary equipment are transmitted layer by layer to the information aggregation submodule through the physical layer submodule of the production analysis processing host, the information aggregation submodule sends the received data to the third information sending submodule and the information analysis submodule, after the information analysis submodule receives relevant data, an intelligent inspection scheme is matched through a state evaluation and fault diagnosis algorithm, and the instruction sending submodule sends the intelligent inspection scheme in the format of a communication message to the physical layer submodule along the seven-layer network and then to the intelligent gateway and the auxiliary equipment.

[0033] In some embodiments, the state evaluation algorithm is: diagnosing and evaluating the health state of the equipment through analysis of the equipment operation data and the state monitoring data, and analyzing and evaluating the key state quantity indicators reflecting the health state of the equipment;

[0034] The fault diagnosis algorithm is specifically: for a single state quantity or a group of state quantities collected at the same time, whether the state quantity at a certain time affects the performance and safe operation of the equipment is diagnosed through a statistical method or a machine learning method;

[0035] The intelligent inspection scheme is specifically: automatically matching corresponding terminal inspection points such as cameras, drones, and robots according to the equipment associated with the inspection plan, and automatically generating camera inspection tasks, drone inspection tasks, or robot inspection tasks.

[0036] For example, the production analysis processing host determines the client and / or server working mode according to the working state setting of the received data and the sent data, when the production analysis processing host receives data, the application layer module is in the client working mode, and the information aggregation submodule runs; when the production analysis processing host sends data to the Internet of Things platform, the application layer module is in the server working mode, and the third information sending submodule runs; when the production analysis processing host sends instructions to the intelligent gateway, the application layer module is in the server working mode, and the instruction sending submodule runs.

[0037] Step S120, an exchange and a forward isolation device are arranged between the device model of the production data unidirectional collection device and the device model of the intelligent gateway, to realize unidirectional data transmission from the device model of the production data unidirectional collection device to the device model of the intelligent gateway.

[0038] In some embodiments, referring to Figure 6 The simulation method provides a schematic diagram of a forward isolation device. Since the production data unidirectional acquisition device is located in the I area of the substation, the intelligent gateway is located in the III area of the substation, and in consideration of data security, a forward isolation device needs to be arranged between different areas of the substation. The device model of the forward isolation device includes an inner network host and an outer network host. The principle of forward isolation is that the inner network host receives data of the production data unidirectional acquisition device and performs protocol stripping on the data. The original data after protocol stripping is sent to the outer network host. The outer network host re-performs protocol encapsulation on the original data and sends the encapsulated data to the device model of the intelligent gateway.

[0039] In step S130, the device model of the edge-side device is simulated, and the device model of the edge-side device is sequentially connected according to the production operation support system edge-side topology structure, the first data acquired by the production data unidirectional acquisition device is simulated, and the first data is simulated. The intelligent gateway receives the first data and the second data, and performs protocol conversion on the data and transmits the data. The production analysis processing host receives the first and second data and transmits the data to the Internet of Things platform in a unified message format, and transmits an instruction to the intelligent gateway.

[0040] In some embodiments, referring to Figure 7 The simulation method provides a schematic diagram of a production data unidirectional acquisition device data acquisition mode setting. The production data unidirectional acquisition device includes two information acquisition modes, i.e., a trigger call and a periodic call. The trigger call specifically refers to that the production data unidirectional acquisition device sends a request command to the station control layer network to trigger the information acquisition mode. The periodic call specifically refers to that the production data unidirectional acquisition device acquires information from the station control layer network according to a set period, wherein the set period needs to be less than 10s.

[0041] It should be understood that the terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit the application.

[0042] It should also be understood that the term “and / or” used in the present application and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes these combinations.

[0043] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present application, and these modifications or replacements should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A simulation method for side equipment of a production operation support system, characterized in that: include: Obtaining a device model of the edge device, wherein the edge device at least includes a one-way production data collection device, an intelligent gateway, and a production analysis and processing host; The device model of the edge device is simulated. During the simulation of the device model of the edge device: The device model of the one-way production data acquisition device receives the first data in a client working mode and sends the first data to the device model of the intelligent gateway in a server working mode; The device model of the intelligent gateway receives the first data from the production data one-way acquisition device and the second data from the auxiliary device in a client working mode, and sends the first data and the second data to the device model of the production analysis and processing host in a server working mode; The device model of the production analysis and processing host receives the first data and the second data from the device model of the intelligent gateway in a client working mode, and sends the first data and the second data to the Internet of Things platform in a server working mode; Among them, a switch and a forward isolation device are set between the equipment model of the production data one-way collection device and the equipment model of the intelligent gateway, and the forward isolation device is used to realize one-way communication from the equipment model of the production data one-way collection device to the equipment model of the intelligent gateway.

2. The simulation method according to claim 1, wherein: During the device model simulation of the edge device, the intranet host of the forward isolation device receives the first data and the second data of the device model from the production data one-way acquisition device, strips the protocol thereof, and sends the original data after protocol stripping to the external network host. The external network host repackages the original data and sends it to the device model of the intelligent gateway.

3. The simulation method according to claim 1, wherein: The application layer module of the equipment model of the one-way production data acquisition device is configured with a first information acquisition submodule and a first information sending submodule; The device model of the one-way production data acquisition device receives the first data in a client working mode and sends the first data to the device model of the intelligent gateway in a server working mode, including: The first information acquisition submodule acquires first data, the first data including operation data of the power system or status data of the power equipment, and sends the first data to the first information sending submodule; The first information sending submodule receives the first data sent by the status acquisition submodule; converts the first data into a communication message through a protocol conversion function, and sends the communication message along the transport layer module, the network layer module, the ARP layer module, and the interface layer module to the data link layer submodule and the corresponding physical layer submodule; the physical layer submodule sends the communication message to the device model of the intelligent gateway; The protocol conversion function is specifically as follows: the application layer submodule parses and maps messages of different formats into messages of a unified format; the message parsing and mapping is specifically to extract data of fields such as function codes, data addresses, and data values ​​of messages of different formats, replace them according to the set mapping rules, and then store the data into the message fields of a unified format.

4. The simulation method according to claim 1, wherein: The application layer module of the device model of the intelligent gateway is configured with a second information acquisition submodule, a protocol conversion submodule, a second information sending submodule, and an instruction receiving submodule; The device model of the intelligent gateway receives first data from the one-way production data acquisition device in a client working mode, and receives second data from the auxiliary device, and sends the first data and the second data to the device model of the production analysis and processing host in a server working mode, including: The second information acquisition submodule acquires the operation data of the power system, the status data of the power equipment, and the operation data of the auxiliary equipment; and sends the data to the protocol conversion submodule; The protocol conversion submodule of the intelligent gateway obtains the data in the shared memory, and parses and maps the data into a communication message in a unified format through the protocol conversion function, and sends it to the information sending submodule of the intelligent gateway; The second information sending submodule of the intelligent gateway receives the communication message in a unified format from the protocol conversion submodule, and sends it along the transport layer module, network layer module, ARP layer module, and interface layer module to the data link layer submodule and the corresponding physical layer submodule for transmission; The communication message in the unified format is the MQTT protocol message, GB28181 protocol message, and ONVIF protocol message of the Internet of Things platform; The instruction receiving submodule receives control instructions from the production analysis and processing host through the transport layer module, network layer module, ARP layer module, interface layer module, data link layer submodule and the corresponding physical layer word module.

5. The simulation method according to claim 1, wherein: The application layer module of the device model of the production analysis and processing host, the configuration information aggregation submodule, the third information sending submodule, the information analysis submodule, and the instruction sending submodule; The device model of the production analysis and processing host receives the first data and the second data from the device model of the intelligent gateway in a client working mode, and sends the first data and the second data to the Internet of Things platform in a server working mode, including: The information aggregation submodule of the production analysis and processing host aggregates the power system operation data, power equipment status data, and auxiliary equipment operation data obtained from each substation in a unified format according to the site information and equipment information, and sends them to the third information sending submodule and the information analysis submodule; The information sending submodule of the production analysis and processing host receives the power system operation data, power equipment status data, and auxiliary equipment operation data in a unified format gathered from the information gathering submodule, and sends them to other devices; The information analysis submodule receives the power system operation data, power equipment status data, and auxiliary equipment operation data in a unified format aggregated by the information aggregation submodule, matches the intelligent patrol plan through status evaluation and fault diagnosis algorithms; and sends the operation instructions of the matched intelligent patrol plan to the instruction sending submodule; The state evaluation algorithm specifically includes: diagnosing and evaluating the health status of the equipment by analyzing the equipment operation data and state monitoring data, and analyzing and evaluating the key state indicators reflecting the health status of the equipment; The fault diagnosis algorithm specifically comprises: using statistical methods or machine learning methods to diagnose whether a state quantity at a certain moment affects the performance and safe operation of the device, for a single state quantity or a group of state quantities collected at the same time; The instruction sending submodule of the production analysis and processing host receives the operation instruction of the intelligent patrol scheme matched by the information analysis submodule, and sends it to the intelligent gateway device in the format of a communication message; The intelligent inspection solution specifically includes: automatically matching corresponding cameras, drones, robots and other terminal inspection points according to the devices associated with the inspection plan, and automatically generating camera inspection tasks, drone inspection tasks or robot inspection tasks.

6. The simulation method according to claim 2, wherein: The power system operation data refers to the analog and switch operation data of the power system accessed from the station control layer network for measurement and control, protection, safety control, and fault recording; The state data of the power equipment refers to the analog and switch state data of the power equipment accessed through the station control layer network for online monitoring; The operating data of the auxiliary equipment refers to the operating data of cameras, robots, drones, and dynamic environment devices accessed from the station control layer network.

7. The simulation method according to claim 1, wherein: Data transmission between devices on the production operation support system side needs to be completed through several data link layer submodules and corresponding physical layer submodules, specifically: The device model of the one-way production data acquisition device acquires operating data from measurement and control, protection, safety control, and fault recording, or acquires status data from an online monitoring device, and transmits the data along the physical layer submodule and the corresponding data link layer submodule, interface layer module, ARP layer module, network layer module, and transport layer module to the first information acquisition submodule and the first information transmission submodule of the application layer module of the one-way production data acquisition device, and then to the device model of the intelligent gateway; The device model of the intelligent gateway transmits the operating data of the power system, the status data of the power equipment, and the operating data of the auxiliary equipment acquired by the one-way production data acquisition device along the physical layer submodule and the corresponding data link layer submodule, interface layer module, ARP layer module, network layer module, and transport layer module to the second information acquisition submodule, protocol conversion submodule, and second information sending submodule of the intelligent gateway, and then sends the data to the device model of the production analysis and processing host; The device model of the production analysis and processing host transmits the power system operation data, power equipment status data, and auxiliary equipment operation data obtained by each substation along the physical layer submodule and the corresponding data link layer submodule, interface layer module, ARP layer module, network layer module, and transport layer module to the information aggregation submodule and the third information sending submodule of the production analysis and processing host, and then sends them to the Internet of Things platform; the Internet of Things platform is located on the cloud side and has functions such as device management, connection management, cloud-edge collaboration, intelligent operation and maintenance, application enablement, and streaming media services; At the same time, according to the information analysis submodule and instruction sending submodule of the application layer module of the production analysis and processing host, the generated operation instructions are sent to the device model of the intelligent gateway along the transport layer module, network layer module, ARP layer module, interface layer module, data link layer submodule and the corresponding physical layer submodule, and finally the operation instructions are executed by the device model of the intelligent gateway.

8. The simulation method according to claim 2, wherein: The method for acquiring the operating data of the power system and the status data of the power equipment obtained by the one-way production data acquisition device can be set to include two modes: a trigger call mode and a periodic call mode. The triggering conditions of the trigger call mode and the call period of the periodic call mode can be set.

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