Cloud platform-based skid-mounted substation operation and maintenance management system

Abstract

The present application relates to the technical field of substation operation and maintenance management, in particular to a cloud platform-based skid-mounted substation operation and maintenance management system, comprising: a model construction module, configured to obtain substation information of a skid-mounted substation to be operated and maintained, construct a three-dimensional substation twin model according to the substation information, and deploy the substation twin model in a cloud platform; a channel building module, configured to configure a database for the cloud platform, establish a transmission channel between the database and the substation twin model, and the transmission channel comprises multiple communication channels with redundant channels; and an information transmission module, configured to obtain operation state information of the skid-mounted substation based on the substation twin model, and transmit the operation state information of the skid-mounted substation to the database based on the transmission channel, thereby improving the timeliness and accuracy of substation fault condition monitoring and improving the operation and maintenance management efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of substation operation and maintenance management, in particular to a cloud platform-based skid-mounted substation operation and maintenance management system. BACKGROUND

[0002] With the rapid development of the power industry, skid-mounted substations are widely used in distributed energy access, temporary power supply, remote power supply and other scenarios due to their flexible deployment and rapid installation. In the substation operation and maintenance management system, when analyzing the fault of the substation, the running state information of multiple devices needs to be transmitted to the cloud platform for correlation analysis to determine the fault condition and perform operation and maintenance management on the substation. The existing transmission channel is easily disturbed by external environment, such as electromagnetic interference and adverse weather, which may cause communication interruption or data transmission anomaly, so that the cloud platform cannot obtain the running state information of the substation devices in time, affecting the effect of correlation analysis and the timeliness and accuracy of operation and maintenance management.

[0003] Therefore, the cloud platform-based skid-mounted substation operation and maintenance management system is proposed to solve the above problems. SUMMARY

[0004] The present application relates to the technical field of substation operation and maintenance management, in particular to a cloud platform-based skid-mounted substation operation and maintenance management system.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a cloud platform-based skid-mounted substation operation and maintenance management system, comprising:

[0006] A model construction module is configured to obtain substation information of a skid-mounted substation to be operated and maintained, construct a three-dimensional substation twin model according to the substation information, and deploy the substation twin model in a cloud platform.

[0007] A channel building module is configured to configure a database in the cloud platform, establish a transmission channel between the database and the substation twin model, and the transmission channel comprises multiple communication channels with redundant channels.

[0008] An information transmission module is configured to obtain running state information of the skid-mounted substation based on the substation twin model, and transmit the running state information of the skid-mounted substation to the database based on the transmission channel.

[0009] An operation and maintenance management module is configured to analyze the running state information of the substation in the database to generate an operation and maintenance strategy, and perform operation and maintenance management on the skid-mounted substation according to the operation and maintenance strategy.

[0010] Preferably, the model construction module comprises:

[0011] A data acquisition unit is configured to acquire device parameter information of a to-be-operated skid-mounted substation and a connection relationship between devices as substation information.

[0012] A three-dimensional construction unit is configured to construct the device parameter information according to the connection relationship between corresponding devices to obtain a substation twin model.

[0013] Preferably, the channel building module comprises:

[0014] A laying unit is configured to lay a sensor array on the skid-mounted substation, and lay a monitoring point in the substation twin model corresponding to the sensor array.

[0015] A corresponding unit is configured to divide a database into a plurality of sub-databases, each sub-database corresponding to a monitoring point, and establish a communication channel between the monitoring point and the sub-database.

[0016] A formulation unit is configured to formulate a redundant channel for the communication channel.

[0017] A channel building unit is configured to establish an association relationship between the redundant channel and the communication channel, and take the communication channel, the redundant channel and the association relationship therebetween corresponding to the plurality of monitoring points as a transmission channel.

[0018] Preferably, the formulation unit comprises:

[0019] A setting sub-unit is configured to set a guide point station for the communication channel, wherein the guide point station comprises a plurality of guide points.

[0020] A connection sub-unit is configured to communicate between each guide point and the guide point station to obtain a switching channel, and communicate between the guide point station and the sub-database corresponding to the guide point to obtain a public channel.

[0021] A formulation sub-unit is configured to integrate the switching channel and the public channel to generate a redundant channel parallel to the communication channel.

[0022] A limiting sub-unit is configured to set a trigger condition for the redundant channel, wherein the trigger condition is that a target node corresponding to the guide point meets a preset condition.

[0023] Preferably, the step of establishing an association relationship between the redundant channel and the communication channel comprises:

[0024] A plurality of nodes are set on the redundant channel and the communication channel respectively, and each node is assigned a unique identifier;

[0025] The nodes of the communication channel are sequentially connected in a preset order to form a communication node chain, and the nodes of the redundant channel are sequentially connected in the same logic to form a redundant node chain.

[0026] Releasing the guide point from the guide point station, connecting the multiple guide points in sequence to form a guide chain;

[0027] Formulating a moving channel for the communication channel, moving the guide chain along the moving channel, and updating the position information of the guide point in real time.

[0028] Preferably, the step of obtaining the operation state information of the skid-mounted transformer substation based on the transformer substation twin model and transmitting the operation state information of the skid-mounted transformer substation to the database based on the transmission channel comprises:

[0029] Obtaining the operation state information of the transformer substation, sequentially inputting the operation state information of the transformer substation corresponding to the monitoring point to the communication node chain of the communication channel, simultaneously, releasing the guide point from the guide point station, and dispatching the data sentinel to the operation state information from the guide point, and establishing a synchronization chain between the guide point and the data sentinel;

[0030] Automatically associating and binding the data sentinel with the corresponding operation state information, moving the data sentinel along the communication node chain on the communication channel in sequence following the operation state information, and synchronously moving the guide point along the moving channel following the data sentinel based on the synchronization chain;

[0031] Arranging the multiple operation state information corresponding to each monitoring point in sequence to generate multiple information streams, each operation state information in each information stream corresponding to a guide point, and generating a guide chain in the order of the information streams by the multiple guide points;

[0032] When the operation state information is transmitted to the corresponding sub-database, the guide point and the operation state information are automatically disconnected, and flow back to the guide point station for the next automatic association and binding with the operation state information to be transmitted;

[0033] Transmitting the operation state information corresponding to the multiple monitoring points to the corresponding sub-databases according to the transmission channel.

[0034] Preferably, the step of transmitting the operation state information corresponding to the multiple monitoring points to the corresponding sub-databases according to the transmission channel comprises:

[0035] When the guide point moves to the target node of the communication node chain, monitoring whether the target node meets the trigger condition through the data sentinel;

[0036] When it is monitored that the target node does not meet the trigger condition, maintaining the association relationship between the communication channel and the sub-database, and sequentially transmitting the information streams corresponding to each monitoring point to the corresponding sub-databases based on the communication channel;

[0037] When it is monitored that the target node meets the trigger condition, the guide point associated with the running state information of the corresponding target node is taken as a starting guide point to disconnect the guide chain, the data sentinel is converted into a temporary port, the corresponding running state information on the target node is collected based on the data sentinel, at the same time, a communication tunnel between the guide point and the temporary port is established, the running state information on the target node is transmitted to the guide point through the communication tunnel, the guide point is controlled to shift to the corresponding node on the redundant node chain, the association between the redundant channel and the sub-database is established, and the guide chain composed of the starting guide point and the subsequent guide points is transmitted to the corresponding sub-database through the redundant channel.

[0038] When the communication channel recovers normally, the guide point is automatically moved back to the communication node chain.

[0039] Preferably, the operation and maintenance management module comprises:

[0040] The association unit is configured to connect the plurality of monitoring points to obtain a monitoring network, determine a target monitoring point and other monitoring points associated with the target monitoring point as an association group.

[0041] The extraction unit is configured to extract running state information from the corresponding sub-database based on each monitoring point in the association group to obtain associated running information.

[0042] The management unit is configured to analyze the associated running information and generate an operation and maintenance strategy, and perform operation and maintenance management on the skid-mounted substation based on the operation and maintenance strategy.

[0043] Compared with the prior art, the present application has the following advantages:

[0044] The channel building module configures a database for the cloud platform and establishes a transmission channel between the database and the substation twin model, the transmission channel comprises a plurality of communication channels configured with redundant channels, the dynamic association and automatic switching of the main communication channel and the redundant channel are realized through the mechanisms of the guide point station, the guide point and the redundant channel, when the communication channel is abnormal, the running state information can be automatically switched to the redundant channel for transmission, ensuring the reliability and continuity of the data, so that the cloud platform can timely and accurately associate a plurality of running state information, improving the timeliness and accuracy of the substation fault condition monitoring, and further improving the operation and maintenance efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0045] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0046] Fig. 1 is a system structure diagram of the present application;

[0047] Fig. 2 is a connection structure diagram between the monitoring point and the sub-database of the present application. DETAILED DESCRIPTION

[0048] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0049] Embodiments, please refer to Figs. 1-2 The present application provides a technical scheme of a cloud platform-based skid-mounted substation operation and maintenance management system: the cloud platform-based skid-mounted substation operation and maintenance management system comprises:

[0050] a model construction module, configured to obtain substation information of a skid-mounted substation to be operated and maintained, perform three-dimensional construction according to the substation information to obtain a substation twin model, and deploy the substation twin model in a cloud platform;

[0051] The model construction module comprises:

[0052] a data acquisition unit, configured to obtain equipment parameter information of the skid-mounted substation to be operated and maintained and a connection relationship between the equipment as the substation information;

[0053] a three-dimensional construction unit, configured to perform three-dimensional construction on the equipment parameter information according to the connection relationship between the corresponding equipment to obtain the substation twin model.

[0054] Specifically, the substation information includes device parameter information in the substation, connection relationship and relative position relationship between devices, and other related information for real-time monitoring of the skid-mounted substation. The substation twin model is obtained by constructing the above information in three dimensions. The connection relationship between devices includes physical connection (such as cable connection, busbar connection) and logical relationship (such as linkage logic of protection device and switch cabinet). In the virtual scene, the device positions are arranged according to the physical connection data (such as cable length, busbar trend), and the interaction between devices is simulated through logical links. The sensor data (voltage, current, temperature) is accessed through the Internet of Things platform (such as Ali Cloud IoT) to update the model running state. The device running parameters are labeled in the model. When the temperature exceeds the limit, it is automatically highlighted and the alarm information is pushed. The skid-mounted substation is divided into standard functional modules (such as transformer module, GIS module). Each module independently constructs a twin sub-model to support rapid reorganization and expansion. A sensor array is arranged for the actual skid-mounted substation. The actual operating state parameters of the skid-mounted substation are collected according to the sensor array, and the actual operating state parameters are mapped to the corresponding monitoring points in the substation twin model. The actual operating state parameter information of each position is obtained according to the monitoring points and stored in the corresponding database for subsequent fault analysis of the skid-mounted substation, so as to develop corresponding operation and maintenance strategies.

[0055] The channel building module is configured to configure a database for the cloud platform, and establish a transmission channel between the database and the substation twin model. The transmission channel includes a plurality of communication channels of redundant channels.

[0056] The channel building module includes a laying unit configured to arrange a sensor array for the skid-mounted substation, and lay monitoring points in the substation twin model corresponding to the sensor array; a corresponding unit configured to divide the database into a plurality of sub-databases, each sub-database corresponding to a monitoring point, and establish a communication channel between the monitoring point and the sub-database; a developing unit configured to develop a redundant channel for the communication channel; and a channel building unit configured to establish an association relationship between the redundant channel and the communication channel, and take the communication channel, the redundant channel and the association relationship therebetween corresponding to the plurality of monitoring points as the transmission channel.

[0057] The developing unit includes:

[0058] A setting sub-unit configured to set a guide point station for the communication channel, wherein the guide point station includes a plurality of guide points; a connecting sub-unit configured to communicate between each guide point and the guide point station to obtain a switching channel, and communicate between the guide point station and the sub-database corresponding to the guide point to obtain a public channel; a developing sub-unit configured to integrate the switching channel and the public channel to generate a redundant channel parallel to the communication channel; and a limiting sub-unit configured to set a trigger condition for the redundant channel, wherein the trigger condition is that a target node corresponding to the guide point meets a preset condition.

[0059] The step of establishing the association between the redundant channel and the communication channel comprises: setting a plurality of nodes on the redundant channel and the communication channel respectively, assigning a unique identifier to each node; connecting the nodes of the communication channel in turn according to a preset order to form a communication node chain; connecting the nodes of the redundant channel in turn according to the same logic to form a redundant node chain; releasing guide points from a guide station, connecting a plurality of guide points in turn to form a guide chain; formulating a moving channel for the communication channel, moving the guide chain along the moving channel, and updating the position information of the guide points in real time;

[0060] Specifically, a plurality of nodes (such as routers, switches, and repeaters) are deployed on the communication channel, each node is configured with a unique identifier, the nodes are connected in turn according to the communication order to form a node chain of the main communication channel, and a node chain of the redundant channel is independently deployed to ensure that it is logically isolated from the main channel but functionally equivalent; a guide station (such as a central controller or a distributed coordinator) releases a plurality of guide points, each guide point contains a unique identifier, initial position information (binding to the running state information of the starting node of the main channel node chain), association conditions, and disengagement conditions, the guide points are connected in order to form a guide chain, the guide points on the guide chain move along the main channel node chain, and each time a running state information is stored into a sub-database, the guide point moves to the next node from the current node, updates the position information of the guide point during the movement, and records a time stamp to support timeout detection, the guide point broadcasts the current position to the guide station through a heartbeat packet or a state update message to ensure that all nodes and redundant channels know its state, and the state of the main channel node chain (such as link quality, node load, and fault flag) is detected in real time, when the guide point moves to a node, it checks whether the node meets the association conditions (such as matching data packet type and sufficient bandwidth), if the main channel node meets the conditions, the guide point establishes an association with the node, marks it as “active state”, and opens a data switching channel, at the same time, the corresponding node of the redundant channel enters “standby state” but does not forward data; if the main channel node triggers the disengagement condition (such as failure or timeout), the guide point immediately disengages from the node and marks the main channel node as “unavailable”, at the same time, the corresponding node of the redundant channel is selected, the guide point moves to the redundant node, re-establishes the association and activates the data forwarding, and switches the information flow to the redundant channel; the nodes of the redundant channel periodically synchronize the state information (such as routing table and session state) with the nodes of the main channel to ensure seamless connection during switching; each guide point is bound to only one active node (communication channel node or node of the redundant channel) at the same time to prevent repeated data forwarding, and the dynamic association and automatic switching of the main communication channel and the redundant channel can be realized to improve the reliability of communication.

[0061] Specifically, the guide point station is used for storing and managing the guide points, which can be a task scheduler or a workflow controller, which is responsible for creating a "task context" and guiding its flow in the entire transmission line, which can receive data and send data. The guide point station listens to the transmission request of the guide point receiving node, and the node inputs the running state information to the switching channel through the guide point and then transmits it to the corresponding sub-database in the public channel. The node is equivalent to a data storage device, which is used to store the running state information of the corresponding position immediately when the communication channel fails, for subsequent transmission through the switching channel. The guide point station is equivalent to a port manager, which connects the port and the database and divides them into two parts, one part is the switching channel and the other part is the public channel. The two are connected through the guide point station. The guide point station is used to determine which switching channel corresponding to the public channel is connected to form a redundant channel. The public channel refers to a channel that multiple guide points on a communication channel can be connected to. Since the information flow on this communication channel is to be transmitted into the corresponding sub-database, when different guide points are used as starting guide points, the switching channel corresponding to the starting guide point is connected to the public channel, so that it corresponds to enter the sub-database, thereby for continuing transmission of information flow when the communication channel fails, preventing the running state information from being transmitted in time due to communication channel failure, improving the timeliness of monitoring the fault condition of the substation, and thereby improving the operation and maintenance efficiency of the substation.

[0062] When the communication channel is abnormal, the node chain corresponding to the abnormal position is disconnected according to the abnormal position, the node corresponding to the disconnected position starts to send a transmission request to the corresponding guide point, at this time the guide point receives the transmission request of the corresponding node, and takes the guide point as the starting guide point, drives the corresponding running state information and the subsequent running state information to start transmission through the redundant channel; when the communication channel is normal, the node chain is automatically connected successfully without meeting the preset condition, indicating that the communication channel does not meet the preset condition, at this time the running state information does not need to be stored to the corresponding node, and the connection between the guide point and the node is disconnected at this time, the node at this time is only used for the moving path of the guide point; by setting a unique identity for the node, the guide point is moved on the node in turn, the node chain can be disconnected according to the node corresponding to the data not received by the sub-database and the node where the guide point is located, and the node is reconnected when the subsequent communication channel is normal, the moving channel of the guide point is not located in the inside of the communication channel, and the two are in a parallel relationship, the guide point is used to move following the running state information, the current position of the running state information is determined, when the current position is abnormal, the guide chain composed of the corresponding guide point and the guide point after the corresponding guide point is driven to transmit the running state information through the redundant channel. According to the disconnection and reconnection of the node chain, it is determined that the running state information associated with the guide point at the corresponding position needs to use which line for transmission, so that the breakpoint transmission can be performed, when the communication channel is abnormal, the normal transmission of the running state information is not affected, and the timeliness of the subsequent association analysis of the substation running state information is improved.

[0063] The guide point station is used for storing and managing guide points, and includes a guide point generation module, a guide point recycling module, a guide point storage pool, and a guide point allocation strategy module. The guide point generation module creates new guide points and stores them in the guide point storage pool; the guide point allocation strategy module starts to release guide points according to the running state information entering the transmission channel and binds the guide points with the running state information; the guide point recycling module recycles guide points to the guide point station when the running state information enters the sub-database; the communication channel serves as the main path for transmitting the running state information and is composed of a series of nodes with unique identifiers. The running state information carries the guide points in the transmission channel, and the guide points move along the node chain. The unique identifier of the node is used to determine the location of the running state information. The transmission channel is equipped with a data transmission monitoring module for monitoring the movement state of data and guide points and detecting whether the transmission channel has failed; the sub-database is used for storing data when the running state information enters the sub-database; the node chain is the path along which the guide points move in the data transmission process. The unique identifier of the node is used to accurately identify the location of the data. The node chain is composed of a plurality of nodes connected in sequence, each node has a unique identifier and an interface for interacting with the guide point, and realizes the sequential movement of the guide point and the accurate identification of the location of the running state information; the redundant channel is arranged in parallel with the transmission channel and is equipped with a data switching module. When the transmission channel fails, the data switching module switches the data corresponding to the guide points before the failure position and other data on the guide chain where the guide points are located to the redundant channel, and transmits them to the sub-database, thereby ensuring the reliability and continuity of data transmission.

[0064] An information transmission module is configured to acquire the running state information of the skid-mounted transformer substation based on the transformer substation twin model, and transmit the running state information of the skid-mounted transformer substation to the database based on the transmission channel.

[0065] The step of transmitting the operation state information of the skid-mounted transformer substation to the database based on the transmission channel comprises: obtaining the operation state information of the transformer substation, inputting the operation state information of the transformer substation corresponding to the monitoring point to the communication node chain of the communication channel in sequence, simultaneously, guiding the point station to release the guide point, and guiding the guide point to dispatch the data sentinel to the operation state information, and establishing a synchronization chain between the guide point and the data sentinel; automatically associating and binding the data sentinel and the corresponding operation state information, and moving the data sentinel along with the operation state information in sequence on the communication node chain of the communication channel, and moving the guide point along with the data sentinel in sequence based on the synchronization chain, arranging the plurality of operation state information corresponding to each monitoring point in sequence to generate a plurality of information streams, each operation state information in each information stream corresponding to a guide point, and generating a guide chain by the plurality of guide points in the order of the information streams; when the operation state information is transmitted to the corresponding sub-database, automatically separating the guide point from the operation state information, and flowing back to the guide point station for the next automatic association and binding with the operation state information to be transmitted; and transmitting the operation state information corresponding to the plurality of monitoring points to the corresponding sub-database according to the transmission channel.

[0066] It should be noted that the synchronization chain is a logical, bidirectional and continuously updated communication and state synchronization mechanism, and a long connection or frequent short connection is maintained between the data sentinel and the guide point. When the communication channel is normally operated, the data sentinel only sends position transformation information and node state information of the operation state information, such as the node to which the operation state information moves and whether the node is abnormal; when the communication channel is abnormal, the data sentinel can be used as a temporary port of the corresponding target node to collect the operation state information on the target node and establish a communication tunnel between the data sentinel and the guide point, and then transmit the operation state information to the corresponding guide point, so as to open the redundant channel corresponding to the guide point and continue to transmit the operation state information.

[0067] It should be noted that when the operation state information is transmitted to the corresponding sub-database, the guide point is automatically separated from the operation state information and flows back to the guide point station. When the operation state information is transmitted to the sub-database through the communication channel, the switching channel is used to flow back to the guide point station, and when the operation state information is transmitted to the sub-database through the redundant channel, the public channel is used to flow back to the guide point station.

[0068] The step of transmitting the operation state information corresponding to the plurality of monitoring points to the corresponding sub-database according to the transmission channel comprises: when the guide point moves to the target node of the communication node chain, monitoring whether the target node meets the trigger condition by the data sentinel, when it is monitored that the target node does not meet the trigger condition, maintaining the association relationship between the communication channel and the sub-database, and transmitting the information flow corresponding to each monitoring point to the corresponding sub-database in turn based on the communication channel; when it is monitored that the target node meets the trigger condition, taking the guide point associated with the operation state information of the corresponding target node as the starting guide point to disconnect the guide chain, converting the data sentinel into a temporary port, collecting the corresponding operation state information on the target node based on the data sentinel, simultaneously, establishing a communication tunnel between the guide point and the temporary port, transmitting the operation state information on the target node to the guide point through the communication tunnel, controlling the guide point to shift to the corresponding node on the redundant node chain, establishing the association relationship between the redundant channel and the sub-database, and transmitting the guide chain composed of the starting guide point and the subsequent guide points to the corresponding sub-database through the redundant channel; when the communication channel recovers normally, automatically moving the guide point back to the communication node chain.

[0069] The target node meeting the trigger condition means that the target node is abnormal, that is, the communication channel where the target node is located is abnormal and cannot normally transmit, and there is a fault condition, which includes but is not limited to at least one of the bandwidth of the communication channel being lower than a threshold value, the delay exceeding a preset time, the data packet loss rate exceeding a threshold value, or node failure. The communication relationship between the guide point station and the guide point is established, the data sentinel is respectively deployed on the corresponding node of the guide point in the communication channel, the data sentinel sets a heartbeat packet for the node where the operation state information currently associated with the guide point at a fixed frequency, and records the number of consecutive times of not receiving a response. When the guide point times out without obtaining the heartbeat packet, it means that the target node meets the preset condition and there is a fault condition. The data sentinel is equivalent to a monitoring agent and is used to monitor the operation state of the target node corresponding to the guide point. When the target node fails, the data sentinel automatically activates the built-in emergency service module and converts it from a monitoring agent to a temporary data port. The step of converting the data sentinel itself from a monitoring agent to a temporary port is triggered and completed by the monitoring agent. When the target node fails, the data sentinel stays on the target node and is used as a temporary port to obtain the operation state information on the target node, and a communication tunnel between the data sentinel and the guide point is established for the guide point to access the operation state information, and the redundant channel corresponding to the guide point is opened, and the operation state information is transmitted to the corresponding sub-database through the redundant channel.

[0070] The program structure of the data sentinel (i.e. monitoring agent) comprises a resident module and an emergency module. The resident module includes a heartbeat thread, a performance collection thread, etc. The code of the emergency module is in a dormant compressed state under normal conditions, and when a fault is triggered, the main process of the data sentinel will decompress and load the code of the emergency module. The emergency module first hijacks or creates a new system process, which is used to execute bind and listen system calls to start a Socket listener on a port (such as 8080) that has not been occupied on the host node. At this time, the process has essentially transformed into a micro HTTP or custom protocol server. At the same time, the data access module of the data sentinel directly calls open, read and other system calls to attempt to access the data files it guards with the highest local authority. Once the tunnel with the controller is established, this "micro server" can receive instructions such as GET / data / file001 HTTP / 1.1 and read data from the local file, sending the data stream through the Socket connection, thus completing the complete transformation from monitoring to data service.

[0071] It should be noted that maintaining the association between the communication channel and the sub-database means continuing to use the communication channel to transmit the running state information to the sub-database; and establishing the association between the redundant channel and the sub-database means that when the trigger condition is met, the redundant channel is started to connect between the corresponding guide point of the running state information and the sub-database, and the running state information is transmitted to the corresponding sub-database through the redundant channel.

[0072] Specifically, a plurality of guide points are set at the guide point station, the running state information enters the communication channel, a guide point is released for the running state information and is associated and bound, when the running state information enters the communication channel, a guide point is released and is associated and bound, the running state information moves in the communication channel, and the guide points are moved along the node chain synchronously, the node unique identifier represents the position of the guide point, thereby representing the position of the running state information in the communication channel, the unique identifier is set for the guide point, when the communication channel fails, the corresponding switching channel is started for the running state information according to the guide point corresponding to the fault node, when the running state information enters the sub-database, the running state information is automatically separated from the guide point, indicating that the transmission task corresponding to the guide point is completed, at the same time, the guide point station recovers the guide point separated from the running state information and is used for the binding of the running state information entering the communication channel subsequently, and the guide point is re-enabled, when the transmission channel fails, the node at the fault position and the running state information on the node are obtained according to the fault position, and the running state information is collected by the guide point and transmitted to the guide point station through the switching channel and then transmitted to the corresponding sub-database through the public channel, after switching, the guide chain after the starting guide point respectively corresponds to other running state information, and the other running state information is transmitted along the transmission path of the running state information corresponding to the starting guide point, thereby enabling the subsequent data after the fault position to be continuously transmitted when the communication channel is abnormal, so that the data can enter the corresponding sub-database in time, and the analysis efficiency of the cloud platform on the fault of the transformer substation is prevented from being affected due to the fact that the running state information of a monitoring point of the transformer substation is not acquired in time.

[0073] The operation and maintenance management module is configured to analyze the running state information of the transformer substation in the database to generate an operation and maintenance strategy, and to perform operation and maintenance management on the skid-mounted transformer substation according to the operation and maintenance strategy.

[0074] The operation and maintenance management module includes:

[0075] The association unit is configured to connect a plurality of monitoring points to obtain a monitoring network, to determine a target monitoring point and other monitoring points associated with the target monitoring point as an association group.

[0076] The extraction unit is configured to extract running state information from the corresponding sub-database based on each monitoring point in the association group to obtain association running information.

[0077] The management unit is configured to analyze the association running information to generate an operation and maintenance strategy, and to perform operation and maintenance management on the skid-mounted transformer substation based on the operation and maintenance strategy.

[0078] Specifically, the target monitoring point and other monitoring points associated with the target monitoring point are determined as an association group, wherein the specific manner of determining the association with the target monitoring point is based on device topology relationship or data correlation, such as electrical connection, physical location, etc., historical fault time multi-monitoring point data synchronization anomaly, transformer winding temperature monitoring point (target) and oil temperature monitoring point, load current monitoring point form an association group, because all of them are affected by load and may be synchronized abnormally, each monitoring point data is uploaded to the distributed sub-database in real time, and is stored according to device type and time stamp; threshold comparison (such as winding temperature > 90℃ alarm) or machine learning model (such as LSTM neural network to predict temperature trend) is used to analyze the associated operation information, and a hierarchical operation and maintenance strategy is generated according to the abnormal type (such as overload, local discharge exceeding standard): first-level strategy (emergency): immediately trigger the circuit breaker to trip, and notify the operation and maintenance personnel to check on site; second-level strategy (warning): adjust the load distribution, and increase the inspection frequency to 2 times a day; third-level strategy (regular): perform preventive test (such as withstand voltage test) according to the plan; the cloud platform automatically pushes the operation and maintenance strategy to the operation and maintenance terminal, and the operation and maintenance terminal personnel perform operation and maintenance management on the skid-mounted substation according to the operation and maintenance strategy, and the operation state information in the substation twin model is transmitted to the distributed sub-database in real time through the transmission channel, which can ensure the integrity of the operation state information corresponding to the association group, so as to analyze the operation state of the substation in time, quickly develop the operation and maintenance strategy, and improve the effect of operation and maintenance management of the substation.

[0079] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0080] Although the embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, replacements and variations of the embodiments can be made without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A cloud platform-based skid-mounted substation operation and maintenance management system, characterized in that, The application relates to a model construction module, a channel building module, an information transmission module, an operation and maintenance management module and the like. The model construction module is used for obtaining substation information of a substation to be operated and maintained, performing three-dimensional construction on the substation information to obtain a substation twin model, and deploying the substation twin model in a cloud platform. The channel building module comprises a laying unit, a corresponding unit, a formulating unit and a channel building unit, is used for configuring a database in the cloud platform, establishing a transmission channel between the database and the substation twin model, and comprises a plurality of communication channels of configuration redundancy channels. The formulating unit comprises a setting subunit, a connecting subunit, a formulating subunit and a limiting subunit. The setting subunit is used for setting a guide point station on the communication channel, wherein the guide point station comprises a plurality of guide points. The connecting subunit is used for performing communication connection between each guide point and the guide point station to obtain a switching channel, and performing communication connection between the guide point station and a sub-database corresponding to the guide point to obtain a public channel. The formulating subunit is used for integrating the switching channel and the public channel to generate a redundancy channel parallel to the communication channel. The limiting subunit is used for setting a trigger condition on the redundancy channel, wherein the trigger condition is that a target node corresponding to the guide point satisfies a preset condition. The information transmission module is used for obtaining operation state information of the substation based on the substation twin model, and transmitting the operation state information of the substation to the database based on the transmission channel. The operation and maintenance management module is used for analyzing the operation state information of the substation in the database to generate an operation and maintenance strategy, and performing operation and maintenance management on the substation based on the operation and maintenance strategy.

2. The cloud platform-based skid-mounted substation operation and maintenance management system according to claim 1, characterized in that, The model construction module comprises a data acquisition unit and a three-dimensional construction unit. The data acquisition unit is used for obtaining equipment parameter information and a connection relationship between equipment of the substation to be operated and maintained as the substation information. The three-dimensional construction unit is used for performing three-dimensional construction on the equipment parameter information according to the connection relationship between the corresponding equipment to obtain the substation twin model. 3.The cloud platform-based skid-mounted substation operation and maintenance management system of claim 1, wherein, The channel building module comprises a laying unit, a corresponding unit, a formulating unit and a channel building unit. The laying unit is used for laying a sensor array on the substation, and laying a monitoring point in the substation twin model corresponding to the sensor array. The corresponding unit is used for dividing the database into a plurality of sub-databases, each sub-database corresponding to a monitoring point, and establishing a communication channel between the monitoring point and the sub-database. The formulating unit is used for formulating a redundancy channel on the communication channel. The channel building unit is used for establishing an association relationship between the redundancy channel and the communication channel, and taking the plurality of monitoring points, the corresponding communication channels, the redundancy channels and the association relationship therebetween as the transmission channel.

4. The cloud platform-based skid-mounted substation operation and maintenance management system according to claim 3, characterized in that, The step of establishing the association relationship between the redundancy channel and the communication channel comprises the following steps. A plurality of nodes are respectively set on the redundancy channel and the communication channel, and each node is allocated a unique identifier. The nodes of the communication channel are sequentially connected in a preset order to form a communication node chain, and the nodes of the redundancy channel are sequentially connected in the same logic to form a redundancy node chain. The guide points are released from the guide point station, and the plurality of guide points are sequentially connected to form a guide chain. A mobile channel is formulated on the communication channel, the guide chain moves along the mobile channel, and the position information of the guide points is updated in real time.

5. The cloud platform-based skid-mounted substation operation and maintenance management system according to claim 1, characterized in that: The step of obtaining the operation state information of the substation based on the substation twin model and transmitting the operation state information of the substation to the database based on the transmission channel comprises the following steps. The operation state information of the transformer substation is acquired, and the operation state information of the transformer substation corresponding to each monitoring point is sequentially input to the communication node chain of the communication channel. Meanwhile, the guide point station releases the guide point, and the guide point dispatches a data sentinel to the operation state information, and a synchronization chain is established between the guide point and the data sentinel; The data sentinel is automatically associated and bound with the corresponding operation state information, and the data sentinel moves along the communication node chain on the communication channel following the operation state information. The guide point moves along the communication channel following the data sentinel based on the synchronization chain; A plurality of information streams are generated by sequentially arranging a plurality of operation state information corresponding to each monitoring point. Each operation state information in each information stream corresponds to a guide point, and a guide chain is generated by the plurality of guide points in the order of the information streams; When the operation state information is transmitted to the corresponding sub-database, the guide point is automatically separated from the operation state information, and flows back to the guide point station for the next automatic association and binding with the operation state information to be transmitted; The operation state information corresponding to the plurality of monitoring points is transmitted to the corresponding sub-database according to the transmission channel. 6.The cloud platform-based skid-mounted substation operation and maintenance management system according to claim 5, characterized in that, The step of transmitting the operation state information corresponding to the plurality of monitoring points to the corresponding sub-database according to the transmission channel comprises: When the guide point moves to the target node of the communication node chain, the data sentinel is used to monitor whether the target node meets the trigger condition; When it is monitored that the target node does not meet the trigger condition, the association relationship between the communication channel and the sub-database is maintained, and the information streams corresponding to each monitoring point are sequentially transmitted to the corresponding sub-database based on the communication channel; When it is monitored that the target node meets the trigger condition, the guide point associated with the operation state information of the target node is taken as a starting guide point to disconnect the guide chain, the data sentinel is converted into a temporary port, the corresponding operation state information on the target node is collected based on the data sentinel, a communication tunnel is established between the guide point and the temporary port, the operation state information on the target node is transmitted to the guide point through the communication tunnel, the guide point is controlled to shift to the corresponding node on the redundant node chain, the association relationship between the redundant channel and the sub-database is established, and the guide chain composed of the starting guide point and the subsequent guide points is transmitted to the corresponding sub-database through the redundant channel; When the communication channel returns to normal, the guide point is automatically moved back to the communication node chain.

7. The cloud platform-based skid-mounted substation operation and maintenance management system according to claim 1, characterized in that: The operation and maintenance management module comprises: An association unit is configured to connect a plurality of monitoring points to obtain a monitoring network, determine a target monitoring point and other monitoring points associated with the target monitoring point as an association group; An extraction unit is configured to extract operation state information from the corresponding sub-database based on each monitoring point in the association group to obtain associated operation information; A management unit is configured to analyze the associated operation information and generate an operation and maintenance strategy, and perform operation and maintenance management on the skid-mounted transformer substation based on the operation and maintenance strategy.

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