A skid-mounted integrated substation intelligent monitoring system

Abstract

The application discloses a prying-mounted integrated transformer substation intelligent monitoring system and relates to the technical field of transformer substation monitoring.The application is used for solving the problems of inaccurate abnormal power use source sensing and low power supply adjustment efficiency in the prior art.The application is characterized in that: the transformer area is divided into a plurality of sub-transformer areas, and end sensing nodes are arranged in sequence, and an end sensing network is built after integration; real-time power consumption load of any power consumption equipment is obtained as a sensing result based on the end sensing network; a supply-demand adjustment topology network between the prying-mounted integrated transformer substation and the plurality of power consumption equipment is established; voltage in the station is distributed to the plurality of power consumption equipment according to the supply-demand relationship through the supply-demand adjustment topology network; supply-demand adjustment is performed based on the sensing result; a central sensing network is established and used for sensing voltage operation conditions of the prying-mounted integrated transformer substation distributed to each power consumption equipment; and abnormal power supply ends and abnormal power receiving ends are obtained based on the sensing result, so that accurate and efficient power consumption monitoring is realized.

Description

Technical Field

[0001] This invention relates to the field of substation monitoring technology, specifically to a skid-mounted integrated intelligent monitoring system for substations. Background Technology

[0002] In existing power supply systems, especially in industrial parks or temporary power supply scenarios, skid-mounted integrated substations are often used for distributed power supply. While these devices offer advantages such as flexible deployment and high integration, they still present challenges in quickly locating voltage anomalies during operation. Traditional monitoring methods often only monitor individual electrical equipment or power supply lines, lacking a holistic understanding of the "power supply-consumption" link. This makes it difficult to quickly determine whether a voltage anomaly is due to a faulty terminal equipment or a malfunctioning power supply unit.

[0003] Therefore, there is an urgent need for an intelligent monitoring method that can achieve collaborative monitoring of electrical equipment and power supply points, automatically determine fault types, and generate fault logs to improve the reliability and operation and maintenance efficiency of the power supply system. Summary of the Invention

[0004] The purpose of this invention is to provide a skid-mounted integrated intelligent monitoring system for substations to address the shortcomings of the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a skid-mounted integrated substation intelligent monitoring system, including a monitoring center, wherein the monitoring center is communicatively connected to an equipment monitoring module, a supply and demand regulation module and a substation monitoring module;

[0006] The equipment monitoring module is used to divide the substation area into several sub-substation areas, deploy terminal sensing nodes in each sub-substation area, integrate the terminal sensing nodes of all sub-substation areas to build a terminal sensing network, and obtain the real-time power load of any electrical equipment as the sensing result based on the terminal sensing network.

[0007] The supply and demand regulation module is used to establish a supply and demand regulation topology network between the skid-mounted integrated substation and several electrical equipment. Through the supply and demand regulation topology network, the voltage within the skid-mounted integrated substation is distributed to several electrical equipment according to the supply and demand relationship. The supply and demand regulation topology network performs supply and demand regulation based on the sensing results of the terminal sensing network.

[0008] The substation monitoring module is used to establish a central sensing network, which senses the voltage operation status of each electrical device in the skid-mounted integrated substation. Based on the sensing results, it obtains abnormal power supply terminals and abnormal power receiving terminals, and records the abnormal information to the monitoring center.

[0009] Furthermore, the process of dividing the substation area into several sub-substation areas and deploying terminal sensing nodes in each sub-substation area includes:

[0010] Based on the power topology, physical location, and power consumption function of the substation area, the substation area is divided into several sub-substation areas. A number of terminal sensing nodes are deployed in each sub-substation area. The terminal sensing nodes are used to sense all electrical equipment in the sub-substation area.

[0011] Obtain the sensing coverage area of ​​each terminal sensing node, stitch together the sensing areas of several terminal sensing nodes under the same sub-substation area to obtain the total sensing area, cover the total substation area of ​​the sub-substation area and the total sensing area onto the same preset area plane, and determine whether there is a sensing blind spot.

[0012] If so, then the final deployment of the peripheral sensing nodes is completed;

[0013] Otherwise, continue deploying peripheral sensing nodes in newly detected sensing blind spots until there are no more sensing blind spots.

[0014] Furthermore, the process of integrating all substation area's terminal sensing nodes to build a terminal sensing network, and obtaining the real-time power load of any electrical device as the sensing result based on the terminal sensing network, includes:

[0015] In each sub-substation area, select one terminal sensing node as a branch index point, and use all other terminal sensing nodes as retrieval points. Connect several retrieval points to the branch index point to construct a corresponding delivery channel. Set several folding units on the delivery channel. Each retrieval point delivers its own real-time power load on the delivery channel. The folding unit decides whether to store the load and generates a corresponding retrieval group. A retrieval set is generated based on the retrieval group.

[0016] Each retrieval set represents all electrical devices whose real-time power load is within the same fluctuation range. A retrieval chain is established for all retrieval groups under the same retrieval set. A scheduling path is established based on the retrieval chain. The retrieval results of each retrieval group are cached as sensing results through the scheduling path. Different retrieval chains are integrated to build a terminal sensing network that connects all terminal sensing nodes.

[0017] Furthermore, the folding unit, the retrieval group, and the retrieval set are respectively:

[0018] The folding unit receives the search point and generates the search benchmark and search range. When the real-time power load sent by the next search point is within the search range of the folding unit, the folding unit folds the real-time power load into itself for storage; otherwise, it does not fold.

[0019] The retrieval points folded by the same folding unit are used as a retrieval group. A total index point is established, and each branch index point is connected to the total index point. Each branch index point uses its own real-time power load as a branch index certificate. Branch index points with the same branch index certificate are divided into an index group, and the same retrieval groups within the index group are merged.

[0020] The retrieval groups of each index group are transmitted to the main index point. At the main index point, a scheduling end and a notification end are set up. The notification end obtains the retrieval range of the retrieval group and merges other retrieval groups under the same retrieval range to obtain the retrieval set. The scheduling end performs cache scheduling, which includes individual scheduling and batch scheduling.

[0021] Furthermore, the process of establishing a supply and demand regulation topology between the skid-mounted integrated substation and several electrical devices includes:

[0022] The substation source, distribution cabinets at all levels, distribution lines and circuit breakers / switches on the skid-mounted integrated substation are taken as the substation supply objects, and each electrical equipment is taken as the substation demand object. The supply path between the substation supply objects and the substation demand objects is established, the topological path distance between the substation supply objects and the substation demand objects is obtained, and the supply execution distance is set.

[0023] A blank graph is established, and all substation supply objects and substation demand objects whose topology path distance is less than or equal to the supply execution distance are taken as interconnection topology points. The interconnection topology points are then mapped to the blank graph to construct the topology network between the skid-mounted integrated substation and several electrical equipment.

[0024] A supply and demand adjustment point is established for each substation supply object, the supply and demand relationship of the supply and demand adjustment point is defined, and all supply and demand adjustment points are connected to construct a supply and demand adjustment plane. The supply and demand adjustment plane is then spliced ​​with the topology network based on the location of the substation supply object to obtain the supply and demand adjustment topology network.

[0025] Furthermore, the process of distributing the voltage within the skid-mounted integrated substation to various electrical equipment according to supply and demand relationships through a supply and demand regulation topology network, and then regulating supply and demand based on the sensing results from the peripheral sensing network, includes:

[0026] The supply and demand relationship includes external supply, external acquisition, and internal balance;

[0027] When the supply and demand relationship of the supply and demand adjustment point is external supply, it means that while the voltage within the current supply and demand adjustment point meets the needs of its corresponding connected electrical equipment, there is also idle voltage that is supplied externally. The idle voltage is redistributed through the power distribution equipment.

[0028] When the supply and demand relationship of the supply and demand adjustment point is to obtain from external sources, it means that the voltage within the current supply and demand adjustment point is insufficient to maintain the operation of its corresponding connected electrical equipment, and it requests the continued supply of idle voltage from the power distribution equipment.

[0029] When the supply and demand relationship of the supply and demand adjustment point is in self-balance, it means that the voltage in the current supply and demand adjustment point is just enough to meet the normal use of the corresponding connected electrical equipment, and no operation is performed.

[0030] For substation supply objects and substation demand objects connected by the same supply path, dynamic supply and demand adjustment is carried out based on the sensing results of the terminal sensing network. Each electrical device calls the substation voltage allocated at the corresponding supply and demand adjustment point of the skid-mounted integrated substation, activates the substation voltage at the electrical device, and judges whether the real-time power load of the electrical device meets the standard. If the standard is met, the operation of the corresponding electrical device is maintained and the adjustment ends; otherwise, the adjustment continues.

[0031] Furthermore, the process of establishing a central sensory network includes:

[0032] A central sensing node is established based on each retrieval set. Each central sensing node is used to sense the electrical equipment corresponding to all retrieval points under a retrieval set, as well as the power supply point of the skid-mounted integrated substation that supplies power to each electrical equipment.

[0033] Connecting all the central sensing nodes constructs a central sensing network, which determines whether there are any abnormalities at each power supply point or electrical equipment, and then performs status monitoring of the skid-mounted integrated substation and several electrical equipment.

[0034] Furthermore, the process of sensing the voltage operation status of each electrical device in the skid-mounted integrated substation through the central sensing network, identifying abnormal power supply and receiving terminals based on the sensing results, and recording the abnormal information to the monitoring center includes:

[0035] Each electrical device and its corresponding skid-mounted integrated substation power supply point are integrated into a sensing object group. The sensing content of several sensing object groups is the voltage operation process of the electrical device, and the sensing result is the voltage operation status, which includes normal voltage and abnormal voltage.

[0036] When the voltage is normal, determine the current electrical equipment and the power supply point of the skid-mounted integrated substation that supplies power to the current electrical equipment, which are respectively the normal power supply end and the normal power receiving end.

[0037] When the sensing result is an abnormal voltage, the current electrical equipment is determined to be an abnormal power receiving end. The power supply point of the skid-mounted integrated substation that supplies power to the current electrical equipment is monitored to determine whether the power supply status of the power supply point is normal.

[0038] If yes, mark the current electrical equipment as faulty equipment and generate an equipment fault log. Record the relevant equipment information of the faulty equipment through the equipment fault log. If no, mark the current power supply point as faulty point.

[0039] The coordinates of the fault location are merged into the equipment fault log as abnormal information, which is then entered into the monitoring center and stored there.

[0040] The technical effects and advantages provided by the present invention in the above technical solution are as follows:

[0041] 1. This invention achieves full-coverage status perception of electrical equipment and skid-mounted integrated substations by dividing the substation area into several sub-substation areas and deploying terminal sensing nodes to construct a terminal sensing network, as well as constructing a central sensing network. This provides a reliable data foundation for subsequent supply and demand regulation, establishes a supply and demand regulation topology network between skid-mounted integrated substations and electrical equipment, and dynamically adjusts the voltage distribution strategy within the station according to the real-time power load of the electrical equipment. This enables on-demand power supply, improves voltage utilization efficiency, and avoids energy waste or equipment malfunctions caused by voltage excess or deficiency.

[0042] 2. This invention, by relying on a central sensing network to collaboratively monitor the voltage operation of power supply points and electrical equipment, can accurately distinguish the source of anomalies, i.e., whether there are abnormalities at the power supply end or the power receiving end, and generate anomaly information, thereby improving the accuracy of fault diagnosis and the efficiency of operation and maintenance response. Through the collaborative mechanism of multiple modules such as equipment monitoring, supply and demand adjustment, and substation monitoring, it realizes the full-process automated management from data acquisition and dynamic adjustment to anomaly handling, reducing manual intervention and enhancing adaptability and stability in complex power environments. Attached Figure Description

[0043] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0044] Figure 1 This is a system block diagram of the present invention. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] Please see Figure 1 As shown, a skid-mounted integrated substation intelligent monitoring system includes a monitoring center, which is communicatively connected to an equipment monitoring module, a supply and demand regulation module, and a substation monitoring module.

[0047] The equipment monitoring module is used to divide the substation area into several sub-substation areas, deploy terminal sensing nodes in each sub-substation area, integrate the terminal sensing nodes of all sub-substation areas to build a terminal sensing network, and obtain the real-time power load of any electrical equipment as the sensing result based on the terminal sensing network.

[0048] The supply and demand regulation module is used to establish a supply and demand regulation topology network between the skid-mounted integrated substation and several electrical equipment. Through the supply and demand regulation topology network, the voltage within the skid-mounted integrated substation is distributed to several electrical equipment according to the supply and demand relationship. The supply and demand regulation topology network performs supply and demand regulation based on the sensing results of the terminal sensing network.

[0049] The substation monitoring module is used to establish a central sensing network, which senses the voltage operation status of each electrical device in the skid-mounted integrated substation. Based on the sensing results, it obtains abnormal power supply terminals and abnormal power receiving terminals, and records the abnormal information to the monitoring center.

[0050] It should be further explained that, in the specific implementation process, the substation area is divided into several sub-substation areas, and the process of deploying terminal sensing nodes in each sub-substation area includes:

[0051] According to the power topology, physical location and power consumption function of the substation area, the substation area is divided into several sub-substation areas. When the power topology is used as the basis for division, the substation area is further subdivided into different levels of partitions.

[0052] The transformers are used as units to divide the area into areas such as Transformer 1, Transformer 2, and Transformer 3, which are considered as first-level zones. The incoming switches of the high-voltage distribution cabinets are used as units to divide the area into incoming switch a, incoming switch b, incoming switch c, and incoming switch d, which are considered as second-level zones.

[0053] Using the outgoing circuits of the low-voltage distribution cabinet as units, three-level zones are obtained, with each outgoing circuit responsible for power supply within a specific range; for each outgoing circuit, a number of electrical devices are connected to the outgoing circuit, and each electrical device is used as a unit of the fourth-level zone.

[0054] When physical spatial location is used as the basis for splitting, a three-dimensional spatial model of the substation area is created, resulting in a three-dimensional substation scene space. The physical location coordinates of each factory area, building, or workshop within the three-dimensional substation scene space are then labeled to their corresponding spatial locations within the three-dimensional substation scene space.

[0055] When the nature of the power consumption function is used as the basis for division, the substation area is divided based on the functional characteristics and power consumption behavior of the loads operating at different spatial locations within the power consumption area. Specifically, the substation area is divided into substation areas such as lighting load area, power load area, key process load area, and auxiliary facilities area. The load demand of each substation area is different. Among them, the load demand of the power load area and the key process load area exceeds that of the lighting load area and the auxiliary facilities area.

[0056] It should be noted that the three criteria for splitting are not independent, but rather a combination to obtain a final sub-region, which is a composite concept. For example, the distribution box located in the power load area of ​​the No. 1 substation area under the power workshop—incoming switch c—the 5th outgoing circuit is a sub-substation area obtained by splitting.

[0057] A number of terminal sensing nodes are deployed in each sub-substation area. The terminal sensing nodes are used to sense all electrical equipment in the sub-substation area, obtain the sensing coverage radius of the terminal sensing nodes, and then obtain the sensing coverage area of ​​each terminal sensing node.

[0058] The sensing areas of several terminal sensing nodes under the same sub-substation area are spliced ​​together to obtain the total sensing area. The total substation area of ​​the sub-substation area and the total sensing area are covered on the same preset area plane to determine whether there are sensing blind spots.

[0059] When any blank area not covered by the total sensing area is detected in the total substation area, it is determined that there is a sensing blind spot. A new terminal sensing node is deployed in the sensing blind spot, and it is simultaneously determined whether the sensing blind spot is eliminated after the deployment is completed. When no blank area not covered by the total sensing area is detected in the total substation area;

[0060] If so, then the final deployment of the peripheral sensing nodes is completed;

[0061] Otherwise, continue deploying peripheral sensing nodes in newly detected sensing blind spots until there are no more sensing blind spots.

[0062] It should be further explained that, in the specific implementation process, the process of integrating all the terminal sensing nodes in the substation area to build a terminal sensing network, and obtaining the real-time power load of any electrical device as the sensing result based on the terminal sensing network, includes:

[0063] Locate all the terminal sensing nodes deployed in each sub-substation area, select one terminal sensing node in each sub-substation area as a branch index point, and use all other unselected terminal sensing nodes as retrieval points;

[0064] Connect several search points under each sub-substation area to the branch index point to build a delivery channel between the search points and the branch index point. Set several folding units on the delivery channel. Each folding unit takes the real-time power load of the first search point it receives as its own search reference and sets the search interval based on the search reference.

[0065] The retrieval interval represents the upper and lower limits of the fluctuation of the real-time power load corresponding to the retrieval point.

[0066] Several retrieval points connected to the same branch index point deliver their respective real-time power loads on the delivery channel. The folding unit receives the retrieval points and generates a retrieval reference and a retrieval range. When the real-time power load delivered by the next retrieval point is within the retrieval range of the folding unit, the folding unit folds the real-time power load into itself for storage; otherwise, it does not fold it.

[0067] Furthermore, different folding units are used to group several retrieval points that are in the same retrieval interval. The retrieval points folded by the same folding unit are used as a retrieval group. The retrieval group is used to represent all electrical equipment whose real-time power load is within the same fluctuation range.

[0068] For each substation area's branch index point, a common master index point is established;

[0069] Each branch index point is connected to the main index point. Each branch index point uses its own real-time power load as the branch index credential. Branch index points with the same branch index credential are divided into an index group, and the same retrieval groups within the index group are merged.

[0070] The retrieval groups of each index group are transmitted to the main index point. At the main index point, a scheduling end and a notification end are set up. The notification end obtains the retrieval range of the retrieval group and merges other retrieval groups under the same retrieval range to obtain the retrieval set.

[0071] Each retrieval set is used to represent all electrical equipment in the substation area whose real-time power load is within the same fluctuation range. A retrieval chain is established for all retrieval groups under the same retrieval set. The dispatching end establishes a dispatching path with each retrieval group in the retrieval chain and caches the retrieval results of each retrieval group as the sensing results at the dispatching end through the dispatching path. Different retrieval chains are integrated to build a terminal sensing network that connects all terminal sensing nodes.

[0072] In the scheduling terminal, cached scheduling is performed to execute individual scheduling of the real-time power load of the application equipment at any retrieval point under the same retrieval set, or batch scheduling of all retrieval points that are all within the same real-time power load fluctuation range.

[0073] It should be noted that the real-time power load delivered by each retrieval point is in the form of data packets. The folding unit folds the data packets to complete the storage within the folding unit. Based on the data packets subsequently delivered in the delivery channel, the folding unit judges in turn whether to fold them, so as to complete the initial grouping of electrical equipment within the same real-time power load range. Through the connection between the branch index point and the main index point, the retrieval group and retrieval set are constructed. When it is necessary to sense the electrical equipment, the independent or batch sensing of all electrical equipment under the same condition is completed through the settings of the scheduling terminal and the notification terminal.

[0074] It should be further explained that, in the specific implementation process, the process of establishing a supply and demand regulation topology between the skid-mounted integrated substation and several electrical devices includes:

[0075] The substation source, distribution cabinets at all levels, distribution lines and circuit breakers / switches on the skid-mounted integrated substation are regarded as the corresponding substation supply objects. Each substation supply object is associated with a global identifier, global identifier = <object number, object location>, and the global identifier serves as the unique identity of the substation supply object.

[0076] Treat each electrical device as a transformer demand object;

[0077] Establish a supply path between each substation supply object and substation demand object, with the path direction being from the substation supply object to the substation demand object, and obtain the topological path distance between any two substation supply objects and substation demand objects.

[0078] Set the supply execution distance, which is the maximum distance that the substation supply object can complete one substation supply operation to the substation demand object;

[0079] A blank graph is established, and all substation supply objects and substation demand objects whose topology path distance is less than or equal to the supply execution distance are regarded as interconnection topology points. All interconnection topology points are mapped onto the blank graph. After the mapping of all interconnection topology points is completed, the topology network between the skid-mounted integrated substation and several electrical equipment is constructed.

[0080] No action is taken when the topology path distance is greater than the supply execution distance.

[0081] A supply and demand adjustment point is established for each substation supply object. The supply and demand adjustment point is not on the topological plane of the topology network. The supply and demand relationship of each supply and demand adjustment point is defined. All supply and demand adjustment points are connected to construct a supply and demand adjustment plane. The supply and demand adjustment plane is spliced ​​with the topology network based on the location of the substation supply object to obtain the supply and demand adjustment topology network.

[0082] It should be further explained that, in the specific implementation process, the process of distributing the voltage within the skid-mounted integrated substation to several electrical equipment locations according to supply and demand relationships through the supply and demand regulation topology network, and then regulating supply and demand based on the sensing results of the terminal sensing network, includes:

[0083] The supply and demand relationship corresponding to each supply and demand adjustment point is obtained based on the supply and demand adjustment topology network.

[0084] The supply and demand relationship includes external supply, external acquisition, and self-balancing;

[0085] When the supply and demand relationship of the supply and demand adjustment point is external supply, it means that while the voltage within the current supply and demand adjustment point meets the needs of the corresponding connected electrical equipment, there is also idle voltage that can be supplied externally. The idle voltage is then redistributed through the power distribution equipment.

[0086] When the supply and demand relationship of the supply and demand adjustment point is to obtain from external sources, it means that the voltage within the current supply and demand adjustment point is insufficient to maintain the operation of its corresponding connected electrical equipment, and it requests the continued supply of idle voltage from the power distribution equipment.

[0087] When the supply and demand relationship at the supply and demand adjustment point is in self-balance, it means that the voltage within the station at the current supply and demand adjustment point is just enough to meet the normal use of the corresponding connected electrical equipment, and no operation is performed.

[0088] After the supply and demand regulation topology network completes the distribution of the voltage within the station based on the supply and demand relationship, dynamic supply and demand regulation is carried out for the substation supply objects and substation demand objects connected by the same supply path based on the sensing results of the terminal sensing network. The content of dynamic supply and demand regulation is as follows: each power device calls the voltage allocated at the corresponding supply and demand regulation point of the skid-mounted integrated substation, activates the voltage at the power device, and judges whether the real-time power load of the power device meets the standard.

[0089] If the target is met, maintain the operation of the corresponding electrical equipment and the adjustment ends; otherwise, continue the adjustment.

[0090] It needs further explanation that, in the specific implementation process, the establishment of a central sensing network, through which the voltage operation status of the skid-mounted integrated substation distributed to each electrical device is sensed, and based on the sensing results, abnormal power supply terminals and abnormal power receiving terminals are identified, and the abnormal information is recorded to the monitoring center, includes the following:

[0091] A central sensing node is established based on each retrieval set. Each central sensing node is used to sense the electrical equipment corresponding to all retrieval points under a retrieval set, as well as the power supply point of the skid-mounted integrated substation that supplies power to each electrical equipment.

[0092] Connecting all the central sensing nodes to build a central sensing network, the central sensing network is used to sense each power supply point on the skid-mounted integrated substation and the electrical equipment connected to each power supply point, and then to determine whether there is any abnormality in the power supply point or electrical equipment, so as to monitor the status of the skid-mounted integrated substation and several electrical equipment.

[0093] Each electrical device and its corresponding skid-mounted integrated substation power supply point are integrated into a sensing object group. Several central sensing nodes are then established to sense several sensing object groups. The sensing content is the voltage operation process of the electrical device, and the sensing result is the voltage operation status.

[0094] The voltage operation status includes normal voltage and abnormal voltage.

[0095] When the sensing result indicates that the voltage is normal, the current electrical equipment and the power supply point of the skid-mounted integrated substation that supplies power to the current electrical equipment are identified as the normal power supply end and the normal power receiving end, respectively.

[0096] When the sensing result is an abnormal voltage, the current electrical equipment is determined to be an abnormal power receiving end. The power supply point of the skid-mounted integrated substation that supplies power to the current electrical equipment is monitored to determine whether the power supply status of the power supply point is normal.

[0097] If so, the current electrical equipment will be identified as faulty equipment, and an equipment fault log will be generated to record relevant equipment information of the faulty equipment.

[0098] If not, mark the current power supply point as the fault point;

[0099] The coordinates of the fault location are merged into the equipment fault log as abnormal information, which is then entered into the monitoring center and stored there.

[0100] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A skid-mounted integrated substation intelligent monitoring system, comprising a monitoring center, characterized in that, The monitoring center is connected to an equipment monitoring module, a supply and demand regulation module, and a substation monitoring module. The equipment monitoring module is used to divide the substation area into several sub-substation areas, and to deploy terminal sensing nodes in each sub-substation area, including: Based on the power topology, physical location, and power consumption function of the substation area, the substation area is divided into several sub-substation areas. A number of terminal sensing nodes are deployed in each sub-substation area. The terminal sensing nodes are used to sense all electrical equipment in the sub-substation area. Obtain the sensing coverage area of ​​each terminal sensing node, stitch together the sensing areas of several terminal sensing nodes under the same sub-substation area to obtain the total sensing area, cover the total substation area of ​​the sub-substation area and the total sensing area onto the same preset area plane, and determine whether there is a sensing blind spot. If so, then the final deployment of the peripheral sensing nodes is completed; Otherwise, continue deploying peripheral sensing nodes in newly detected sensing blind spots until there are no more sensing blind spots. A terminal sensing network is built by integrating all terminal sensing nodes in the substation area. Based on the terminal sensing network, the real-time power load of any electrical device is obtained as the sensing result, including: In each sub-substation area, select one terminal sensing node as a branch index point, and use all other terminal sensing nodes as retrieval points. Connect several retrieval points to the branch index point to construct a corresponding delivery channel. Set several folding units on the delivery channel. Each retrieval point delivers its own real-time power load on the delivery channel. The folding unit decides whether to store the load and generates a corresponding retrieval group. A retrieval set is generated based on the retrieval group. Each retrieval set is used to represent all electrical equipment whose real-time power load is within the same fluctuation range. A retrieval chain is established for all retrieval groups under the same retrieval set. A scheduling path is established based on the retrieval chain. The retrieval results of each retrieval group are cached as sensing results through the scheduling path. Different retrieval chains are integrated to build a terminal sensing network that connects all terminal sensing nodes. The supply and demand regulation module is used to establish a supply and demand regulation topology network between the skid-mounted integrated substation and several electrical equipment. Through the supply and demand regulation topology network, the voltage within the skid-mounted integrated substation is distributed to several electrical equipment according to the supply and demand relationship. The supply and demand regulation topology network performs supply and demand regulation based on the sensing results of the terminal sensing network. The substation monitoring module is used to establish a central sensing network, which senses the voltage operation status of each electrical device in the skid-mounted integrated substation. Based on the sensing results, it obtains abnormal power supply terminals and abnormal power receiving terminals, and records the abnormal information to the monitoring center.

2. The skid-mounted integrated substation intelligent monitoring system according to claim 1, characterized in that, The folding unit, retrieval group, and retrieval set are respectively: The folding unit receives the search point and generates the search benchmark and search range. When the real-time power load sent by the next search point is within the search range of the folding unit, the folding unit folds the real-time power load into itself for storage; otherwise, it does not fold. The retrieval points folded by the same folding unit are used as a retrieval group. A total index point is established, and each branch index point is connected to the total index point. Each branch index point uses its own real-time power load as a branch index certificate. Branch index points with the same branch index certificate are divided into an index group, and the same retrieval groups within the index group are merged. The retrieval groups of each index group are transmitted to the main index point. At the main index point, a scheduling end and a notification end are set up. The notification end obtains the retrieval range of the retrieval group and merges other retrieval groups under the same retrieval range to obtain the retrieval set. The scheduling end performs cache scheduling, which includes individual scheduling and batch scheduling.

3. The skid-mounted integrated substation intelligent monitoring system according to claim 2, characterized in that, The process of establishing a supply and demand regulation topology between a skid-mounted integrated substation and several electrical devices includes: The substation source, distribution cabinets at all levels, distribution lines and circuit breakers / switches on the skid-mounted integrated substation are taken as the substation supply objects, and each electrical equipment is taken as the substation demand object. The supply path between the substation supply objects and the substation demand objects is established, the topological path distance between the substation supply objects and the substation demand objects is obtained, and the supply execution distance is set. A blank graph is established, and all substation supply objects and substation demand objects whose topology path distance is less than or equal to the supply execution distance are taken as interconnection topology points. The interconnection topology points are then mapped to the blank graph to construct the topology network between the skid-mounted integrated substation and several electrical equipment. A supply and demand adjustment point is established for each substation supply object, the supply and demand relationship of the supply and demand adjustment point is defined, and all supply and demand adjustment points are connected to construct a supply and demand adjustment plane. The supply and demand adjustment plane is then spliced ​​with the topology network based on the location of the substation supply object to obtain the supply and demand adjustment topology network.

4. The skid-mounted integrated substation intelligent monitoring system according to claim 3, characterized in that, The process of distributing the voltage within a skid-mounted integrated substation to various electrical equipment according to supply and demand relationships through a supply and demand regulation topology network, and then regulating supply and demand based on the sensing results from the peripheral sensing network, includes: The supply and demand relationship includes external supply, external acquisition, and internal balance; When the supply and demand relationship of the supply and demand adjustment point is external supply, it means that while the voltage within the current supply and demand adjustment point meets the needs of its corresponding connected electrical equipment, there is also idle voltage that is supplied externally. The idle voltage is redistributed through the power distribution equipment. When the supply and demand relationship of the supply and demand adjustment point is to obtain from external sources, it means that the voltage within the current supply and demand adjustment point is insufficient to maintain the operation of its corresponding connected electrical equipment, and it requests the continued supply of idle voltage from the power distribution equipment. When the supply and demand relationship of the supply and demand adjustment point is in self-balance, it means that the voltage in the current supply and demand adjustment point is just enough to meet the normal use of the corresponding connected electrical equipment, and no operation is performed. For substation supply objects and substation demand objects connected by the same supply path, dynamic supply and demand adjustment is carried out based on the sensing results of the terminal sensing network. Each electrical device calls the substation voltage allocated at the corresponding supply and demand adjustment point of the skid-mounted integrated substation. The substation voltage is activated at the electrical device, and it is determined whether the real-time power load of the electrical device meets the standard. If the standard is met, the operation of the corresponding electrical device is maintained and the adjustment ends; otherwise, the adjustment continues.

5. The skid-mounted integrated substation intelligent monitoring system according to claim 4, characterized in that, The process of establishing a central sensory network includes: A central sensing node is established based on each retrieval set. Each central sensing node is used to sense the electrical equipment corresponding to all retrieval points under a retrieval set, as well as the power supply point of the skid-mounted integrated substation that supplies power to each electrical equipment. Connecting all the central sensing nodes constructs a central sensing network, which determines whether there are any abnormalities at each power supply point or electrical equipment, and then performs status monitoring of the skid-mounted integrated substation and several electrical equipment.

6. The skid-mounted integrated substation intelligent monitoring system according to claim 5, characterized in that, The process of sensing the voltage operation status of each electrical device in a skid-mounted integrated substation through a central sensing network, identifying abnormal power supply and receiving terminals based on the sensing results, and recording the abnormal information to the monitoring center includes: Each electrical device and its corresponding skid-mounted integrated substation power supply point are integrated into a sensing object group. The sensing content of several sensing object groups is the voltage operation process of the electrical device, and the sensing result is the voltage operation status, which includes normal voltage and abnormal voltage. When the voltage is normal, determine the current electrical equipment and the power supply point of the skid-mounted integrated substation that supplies power to the current electrical equipment, which are respectively the normal power supply end and the normal power receiving end. When the sensing result is an abnormal voltage, the current electrical equipment is determined to be an abnormal power receiving end. The power supply point of the skid-mounted integrated substation that supplies power to the current electrical equipment is monitored to determine whether the power supply status of the power supply point is normal. If yes, mark the current electrical equipment as faulty equipment and generate an equipment fault log. Record the relevant equipment information of the faulty equipment through the equipment fault log. If no, mark the current power supply point as faulty point. The coordinates of the fault location are merged into the equipment fault log as abnormal information, which is then entered into the monitoring center and stored there.

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