CN112564272B - Transformer substation health control method integrating multidimensional monitoring and fault information - Google Patents
Transformer substation health control method integrating multidimensional monitoring and fault information Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00034—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving an electric power substation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
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Abstract
The invention relates to the technical field of transformer substation operation and maintenance, in particular to a transformer substation health control method integrating multidimensional monitoring and fault information, which comprises the following steps of: A) installing a monitoring sensing device on the substation equipment; B) the method comprises the steps that a plurality of collectors and a server are arranged in a transformer substation, each collector is connected with a plurality of monitoring sensors, and when state data acquired by the monitoring sensors exceed a threshold value, the collectors send alarm information to the server; C) and the server periodically reads the state data acquired by the monitoring sensor to obtain a risk prediction result of the substation equipment. The substantial effects of the invention are as follows: the state data of the substation equipment can be collected through the monitoring sensing device, the state data of the substation can be uploaded to the server through the collector quickly, the health state of the substation can be controlled through the server, and the safety of the substation is improved.
Description
Technical Field
The invention relates to the technical field of transformer substation operation and maintenance, in particular to a transformer substation health control method integrating multidimensional monitoring and fault information.
Background
With the continuous development of the economic society, the scale of the power grid becomes huge, and the operation and maintenance, the overhaul, the mode adjustment and other business volumes of the power grid become larger. The traditional operation and maintenance uses a human operation and maintenance service 'main body', personnel field equipment inspection, switching operation, work permission and the like, and has the advantages of large workload, high working strength and low efficiency. Meanwhile, intelligent operation and inspection equipment or equipment which is put into field application cannot be fully converted into actual productivity, and the problems of incomplete equipment coverage, non-uniform construction standards, non-shared main and auxiliary data, non-friendly man-machine interaction and the like exist. The traditional power transformation operation and maintenance mode depending on human resources is difficult to adapt to the development requirements of enterprises and power grids. With the increase of power grid data, the security and confidentiality of the power grid data also become new technical problems, and a new solution is urgently needed to be proposed.
For example, in chinese patent CN109359805A, published 2019, 2 month, 19 day, a method for safely managing and controlling electrical operators of a transformer substation includes the following steps: establishing safety information management of electrical operating personnel; establishing an intelligent access control system, and checking the real identity information of an operator; confirming dressing specifications of an operator before the operator enters a working post or an operation site; confirming the consistency of the posts and the human domains of the operators according to the post and work area information; confirming the consistency of the tickets, monitoring the operators in real time, performing significance detection on abnormal behaviors of the operators, acquiring and storing key frames of the abnormal behaviors, and storing the identity, dressing and other whole-course check records of the operators; and alarming and reminding the abnormal information of the checked operators. Although the technical scheme improves the safety control efficiency of the electrical operating personnel of the transformer substation, the safety control efficiency can only be controlled by the operating personnel, and the monitoring data of the transformer substation cannot be fully utilized to control the health of the transformer substation.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the technical problem of the lack of a transformer substation health control scheme at present. The transformer substation health control method fusing the multidimensional monitoring and the fault information is provided, and the transformer substation monitoring data can be efficiently collected and the health state can be evaluated.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a transformer substation health control method integrating multidimensional monitoring and fault information comprises the following steps: A) the method comprises the steps that a monitoring sensing device is installed on the substation equipment and comprises a monitoring sensor, a communication unit and a control unit, wherein the monitoring sensor monitors the state of the substation equipment, and the monitoring sensor and the communication unit are connected with the control unit; B) the monitoring system comprises a plurality of collectors and a server, wherein each collector is connected with a plurality of monitoring sensors and comprises a first communication module, a second communication module, a memory and a controller, the monitoring sensors are connected with the controller through the first communication module, the second communication modules are connected with the server, the memory is connected with the controller, the collectors record identification information and threshold information of the monitoring sensors connected with the collectors, and when state data acquired by the monitoring sensors exceed a threshold value, the collectors send alarm information to the server; C) the server periodically reads state data acquired by the monitoring sensor to obtain a risk prediction result of the substation equipment, the server runs a plan triggering module, and when the prediction result of the fault rate of the substation equipment exceeds a preset threshold value, a corresponding plan is triggered to automatically control the action of the substation equipment or send alarm information to an attendant. The state data of the substation equipment can be collected through the monitoring sensing device, the state data of the substation can be uploaded to the server through the collector quickly, the health state of the substation can be controlled through the server, and the safety of the substation is improved.
Preferably, in the step A), the substation equipment provided with the monitoring sensing device comprises a transformer, a high-voltage circuit breaker, a disconnecting switch, a lightning arrester, a capacitor and a reactor, the monitoring sensor comprises a transformer oil chromatogram on-line monitoring device, a transformer bushing pressure sensor, a transformer oil level indicator, an infrared temperature sensor, a vibration sensor, a camera and a lightning arrester counter, the infrared temperature sensors are arranged on the transformer, the high-voltage circuit breaker, the isolating switch, the lightning arrester, the capacitor and the reactor and respectively monitor the temperature of the heating part of the corresponding equipment, the vibration sensor is arranged on the shell of the transformer and the high-voltage circuit breaker and is used for detecting the vibration of the transformer and the high-voltage circuit breaker, the camera is arranged on the transformer, the high-voltage circuit breaker, the isolating switch, the lightning arrester, the capacitor and the reactor, and shoots real-time images of corresponding equipment. The state of the transformer substation can be effectively mastered by monitoring the transformer, the high-voltage circuit breaker, the isolating switch, the lightning arrester, the capacitor and the reactor.
Preferably, in step B), the second communication modules G of the plurality of collectors i,i∈[1,N] A communication ring is established between the monitoring sensors, N is the number of collectors, and the communication units R of the four monitoring sensors ij,j∈[1,4] Forming a communication chain, communication unit R i1 And a second communication module G i Connecting; the monitoring sensor acquires the state of the corresponding substation equipment in a period t, and the communication unit R ij,j∈[1,4] Packing the collected state data of the substation equipment into a data block D in a period T ij T is m times of T, and each data block comprises m transformer substationsStatus data of the device; communication unit R after the end of period T i4 Generating m-bit binary number B im Associating a time stamp with a communication unit R i4 The identification number is uploaded to a server; communication unit R i4 Data block D i1 And a binary number B im To the communication unit R i3 A communication unit R i3 Data block D i4 And a data block D i3 To the communication unit R i2 A communication unit R i2 Data block D i4 Data block D i3 And a data block D i2 To the communication unit R i1 A communication unit R i1 Data block D ij,j∈[1,4] Send to the second communication module G i The second communication module G i Received data block D ij,j∈[1,4] And a binary number B im Then, the data block D is divided into ij,j∈[1,4] Split into 2 parts D after stitching i,1 And D i,2 The second communication module G i The corresponding controller is based on binary number B im Determines whether to use the data block D i,2 Sending to the next second communication module G in the communication ring i+1 A binary number B im Is 1, then the data block D is formed i,2 Sending to the next second communication module G in the communication ring i+1 If the second communication module G is used i+1 Corresponding binary number B (i+1)m If the first position of the first communication module is 1, the second communication module G i+1 Receiving a data block D i,2 And will own data block D i+1,2 Next second communication module G to be sent to the communication ring i+2 Otherwise, the data block D is directly read i,2 Sending to the next second communication module G in the communication ring i+2 After a plurality of periods T, all the second communication modules G i,i∈[1,N ]Data block D i,i∈[1,N] Upload to server and discard binary B im . By a binary number B im The cross exchange of the control data blocks can ensure that each independent collector and the monitoring sensing device can not recover the state data acquired by the collector and the monitoring sensing device, the monitoring data can be restored only by the server, the leakage of the monitoring data of the transformer substation can be effectively prevented, and the monitoring data of the transformer substation can be ensuredThe confidentiality of the substation monitoring data is improved.
Preferably, the communication unit R i4 Data block D i4 And a binary number B im To the communication unit R i3 At the time of communication unit R i3 Data block D i4 And a data block D i3 The state data of the included substation equipment is in binary B im Bit value of is exchanged, if the binary number B im Is 1, the data block D is processed i4 And a data block D i3 The state data of the substation equipment collected in the kth period t are exchanged, and the exchanged data block D i4 And a data block D i3 Spliced into data block D i4-3 A communication unit R i3 Data block D i4-3 And a binary number B im To the communication unit R i2 。
Preferably, the communication unit R i2 Receiving communication unit R i3 Transmitted data block D i4-3 And a binary number B im Then, the data block D is divided into i4-3 Data block D i2 And a binary number B im To the communication unit R i1 A communication unit R i1 Received data block D i4-3 Data block D i2 And a binary number B im Then, the data block D is divided into i2 And a data block D i1 Spliced into data block D i2-1 Two binary numbers B im Spliced into binary number B i.2m Data block D i4-3 And a data block D i2-1 The state data of the included substation equipment is in binary B i.2m Bit value of is exchanged, if the binary number B i.2m Is 1, the data block D is processed i4-3 And a data block D i2-1 The state data of the substation equipment collected in the kth period t are exchanged, and the exchanged data block D i4-3 And a data block D i2-1 Spliced into data block D i A communication unit R i1 Data block D i And a binary number B im Send to the second communication module G i 。
Preferably, the second communication module G i,i∈[1,N] When a communication ring is established between them, the second communicationCommunication module G i Second communication module G only recording located communication ring i-1 And a second communication module G i+1 The communication ring assigns the data transmission right in a token manner.
Preferably, the server inserts a virtual node in the communication ring, and the virtual node records the second communication module G of the virtual node i-1 And a second communication module G i+1 When the virtual node receives the data, the communication address checks whether the data format accords with the preset format, if not, the communication address is discarded, if so, the data is sent under the name of the virtual node, and if the virtual node receives the data, the communication address receives the second communication module G i-1 The sent data are sent to a second communication module G i+1 If the virtual node receives the second communication module G i+1 The sent data are sent to a second communication module G i-1 . The security of the communication ring can be improved by the virtual nodes.
Preferably, at least two virtual nodes are inserted into each communication ring, and the virtual nodes are physical nodes with communication and data checking functions or virtual machines running in a server.
Preferably, in step C), the method for the server to periodically read the status data collected by the monitoring sensors to obtain the risk prediction result of the substation equipment includes: C1) the server establishes a classification model for each transformer substation device, and manually marks l samples as a training set during establishment of the classification model (x) (1) ,y (1) ),(x (2) ,y (2) ),…,(x (l) ,y (l) )}，y (i) E is {1,2, …, h }, and h is the number of fault types of corresponding substation equipment; C2) let the cost function
Wherein the content of the first and second substances,
to be the parameters of the classification model,
is a weight attenuation term, lambda is more than 0; C3) and (3) obtaining a classification model parameter which enables the cost function J (theta) to be minimum by using a linear optimization algorithm, namely completing the establishment of a classification model of the corresponding substation equipment. The fault probability of the substation equipment can be predicted through the classification model.
Preferably, the plan used in step C) includes a triggering condition, an execution content, and a release condition, where the triggering condition is a threshold value that the state of the corresponding substation device needs to meet when the plan is triggered, the execution content is a measure taken to restore the state of the substation device that triggers the threshold value to a threshold value range, the measure includes automatically controlling the action of the substation device or sending an alarm message to an attendant, and the release condition is a threshold value that the state of the corresponding substation device needs to meet when the plan is released. Through the plan, when the fault rate of the substation equipment exceeds a set threshold value, the plan can be actively processed, and the safety of a power grid is improved. And the triggering condition is a threshold value of the state of the substation equipment when the plan is triggered.
The substantial effects of the invention are as follows: the monitoring sensing device can acquire the state data of the substation equipment, the collector can quickly upload the state data of the substation to the server, and the server can manage and control the health state of the substation, so that the safety of the substation is improved; the state of the transformer substation can be effectively mastered by monitoring the transformer, the high-voltage circuit breaker, the isolating switch, the lightning arrester, the capacitor and the reactor.
Drawings
Fig. 1 is a block diagram illustrating a flow of a transformer substation health management and control method according to an embodiment.
Fig. 2 is a schematic structural diagram of a monitoring and sensing device according to an embodiment.
Fig. 3 is a flowchart of a method for obtaining a risk prediction result of a substation device according to an embodiment.
Wherein: 1. the system comprises a server, 2, a collector, 3, a transformer oil chromatogram online monitoring device, 4, a transformer bushing pressure sensor, 5, a transformer oil level gauge, 6, an infrared temperature sensor, 7, a vibration sensor, 8, a camera, 9 and a lightning arrester counter.
Detailed Description
The following provides a more detailed description of the present invention, with reference to the accompanying drawings.
The first embodiment is as follows:
a transformer substation health control method integrating multidimensional monitoring and fault information is shown in figure 1 and comprises the following steps:
A) the monitoring sensing device is installed on the substation equipment and comprises a monitoring sensor, a communication unit and a control unit, the monitoring sensor monitors the state of the substation equipment, and the monitoring sensor and the communication unit are connected with the control unit.
B) Set up a plurality of collector 2 and server 1 in the transformer substation, a plurality of monitoring sensor is connected to every collector 2, collector 2 includes first communication module, second communication module, memory and controller, the monitoring sensor is connected with the controller through first communication module, second communication module all is connected with server 1, the memory is connected with the controller, 2 records of collector and the monitoring sensor identification information and the threshold value information of being connected, when the status data that monitoring sensor gathered surpassed the threshold value, collector 2 sends alarm information to server 1.
C) The method comprises the steps that a server 1 periodically reads state data acquired by a monitoring sensor to obtain a risk prediction result of the substation equipment, a plan triggering module is operated on the server 1, when the prediction result of the fault rate of the substation equipment exceeds a preset threshold value, a corresponding plan is triggered, and the action of the substation equipment is automatically controlled or alarm information is sent to an attendant. As shown in fig. 2, the substation equipment equipped with the monitoring and sensing device comprises a transformer, a high-voltage circuit breaker, a disconnecting switch, a lightning arrester, a capacitor and a reactor, the monitoring sensor comprises a transformer oil chromatogram online monitoring device 3, a transformer bushing pressure sensor 4, a transformer oil level indicator 5, an infrared temperature sensor 6 and a vibration sensor 7, camera 8 and arrester counter 9, infrared temperature sensor 6 sets up on the transformer, high voltage circuit breaker, isolator, the arrester, condenser and reactor, the temperature of the position that generates heat of corresponding equipment is monitored respectively, vibration sensor 7 is installed on the shell of transformer and high voltage circuit breaker, detect the vibration of transformer and high voltage circuit breaker, camera 8 sets up on transformer, high voltage circuit breaker, isolator, the arrester, condenser and reactor, the real-time image of shooting corresponding equipment. The state of the transformer substation can be effectively mastered by monitoring the transformer, the high-voltage circuit breaker, the isolating switch, the lightning arrester, the capacitor and the reactor.
In step B), a plurality of second communication modules G of the collector 2 i,i∈[1,N] A communication ring is established between the collectors 2, N is the number of the collectors, and the communication units R of the four monitoring sensors ij,j∈[1,4] Forming a communication chain, communication unit R i1 And a second communication module G i Connecting; the monitoring sensor acquires the state of the corresponding substation equipment in a period t, and the communication unit R ij,j∈[1,4] Packing the collected state data of the substation equipment into a data block D in a period T ij T is m times of T, and each data block comprises state data of m transformer substation devices; communication unit R after the end of period T i4 Generating m-bit binary number B im Associating a time stamp with a communication unit R i4 The identification number is uploaded to the server 1; communication unit R i4 Data block D i1 And a binary number B im To the communication unit R i3 A communication unit R i3 Data block D i4 And a data block D i3 To the communication unit R i2 A communication unit R i2 Data block D i4 Data block D i3 And a data block D i2 To the communication unit R i1 A communication unit R i1 Data block D ij,j∈[1,4] Send to the second communication module G i The second communication module G i Received data block D ij,j∈[1,4] And a binary number B im Then, the data block D is divided into ij,j∈[1,4] Split into 2 parts D after stitching i,1 And D i,2 The second communication module G i The corresponding controller is based on binary number B im Determines whether to use the data block D i,2 Sending to the next second communication module G in the communication ring i+1 Numerical value ofB im Is 1, then the data block D is formed i,2 Sending to the next second communication module G in the communication ring i+1 If the second communication module G is used i+1 Corresponding binary number B (i+1)m If the first bit of the first communication module is 1, the second communication module G i+1 Receiving a data block D i,2 And will own data block D i+1,2 Next second communication module G to be sent to the communication ring i+2 Otherwise, the data block D is directly read i,2 Sending to the next second communication module G in the communication ring i+2 After a plurality of periods T, all the second communication modules G i,i∈[1,N] Data block D i,i∈[1,N] Upload to Server 1 and discard binary B im . By a binary number B im The control data block cross exchange can ensure that each independent collector 2 and the monitoring sensing device can not recover the state data acquired by the monitoring sensing device, the monitoring data can be restored only by the server 1, the leakage of the monitoring data of the transformer substation can be effectively prevented, and the confidentiality of the monitoring data of the transformer substation is ensured.
Communication unit R i4 Data block D i4 And a binary number B im To the communication unit R i3 At the time of communication unit R i3 Data block D i4 And a data block D i3 The state data of the included substation equipment is in binary B im Bit value of is exchanged, if the binary number B im Is 1, the data block D is processed i4 And a data block D i3 The state data of the substation equipment collected in the kth period t are exchanged, and the exchanged data block D i4 And a data block D i3 Spliced into data block D i4-3 A communication unit R i3 Data block D i4-3 And a binary number B im To the communication unit R i2 。
Communication unit R i2 Receiving communication unit R i3 Transmitted data block D i4-3 And a binary number B im Then, the data block D is divided into i4-3 Data block D i2 And a binary number B im To the communication unit R i1 A communication unit R i1 Number of receivedAccording to block D i4-3 Data block D i2 And a binary number B im Then, the data block D is divided into i2 And a data block D i1 Spliced into data block D i2-1 Two binary numbers B im Spliced into binary number B i.2m Data block D i4-3 And a data block D i2-1 The state data of the included substation equipment is in binary B i.2m Bit value of is exchanged, if the binary number B i.2m Is 1, the data block D is processed i4-3 And a data block D i2-1 The state data of the substation equipment collected in the kth period t are exchanged, and the exchanged data block D i4-3 And a data block D i2-1 Spliced into data block D i A communication unit R i1 Data block D i And a binary number B im Send to the second communication module G i . Second communication module G i,i∈[1,N] When a communication ring is established between the first communication module G and the second communication module G i Second communication module G only recording located communication ring i-1 And a second communication module G i+1 The communication ring assigns the data transmission right in a token manner. The server 1 inserts a virtual node in the communication ring, and the virtual node records the second communication module G thereof i-1 And a second communication module G i+1 When the virtual node receives the data, the communication address checks whether the data format accords with the preset format, if not, the communication address is discarded, if so, the data is sent under the name of the virtual node, and if the virtual node receives the data, the communication address receives the second communication module G i-1 The sent data are sent to a second communication module G i+1 If the virtual node receives the second communication module G i+1 The sent data are sent to a second communication module G i-1 . At least two virtual nodes are inserted into each communication ring, and the virtual nodes are entity nodes with communication and data checking functions or virtual machines running in the server 1.
As shown in fig. 3, in step C), the method for periodically reading the state data acquired by the monitoring sensor by the server 1 to obtain the risk prediction result of the substation device includes: C1) serviceThe device 1 is provided with a classification model for each substation device, and when the classification model is established, l samples are manually marked to be used as a training set { (x) (1) ,y (1) ),(x (2) ,y (2) ),…,(x (l) ,y (l) )}，y (i) E is {1,2, …, h }, and h is the number of fault types of corresponding substation equipment; C2) let the cost function
Wherein the content of the first and second substances,
to be the parameters of the classification model,
is a weight attenuation term, lambda is more than 0; C3) and (3) obtaining a classification model parameter which enables the cost function J (theta) to be minimum by using a linear optimization algorithm, namely completing the establishment of the classification model of the corresponding substation equipment. The fault probability of the substation equipment can be predicted through the classification model.
The plan used in the step C) comprises a triggering condition, an execution content and a release condition, wherein the triggering condition is a threshold value which is required to be met by the state of the corresponding substation equipment when the plan is triggered, the execution content is a measure which is taken to enable the state of the substation equipment triggering the threshold value to be recovered to be within a threshold value range, the measure comprises automatically controlling the action of the substation equipment or sending alarm information to an attendant, and the release condition is the threshold value which is required to be met by the state of the corresponding substation equipment when the plan is released. And the triggering condition is a threshold value of the state of the substation equipment when the plan is triggered.
The beneficial technical effects of this embodiment do: the state data of the substation equipment can be collected through the monitoring sensing device, the state data of the substation can be uploaded to the server 1 through the collector 2 quickly, the health state of the substation can be controlled through the server 1, and the safety of the substation is improved. Through the plan, when the fault rate of the substation equipment exceeds a set threshold value, the plan can be actively processed, and the guarantee of the normal operation of the substation is improved.
The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit of the invention as set forth in the claims.
Claims (9)
1. A transformer substation health control method integrating multidimensional monitoring and fault information is characterized in that,
the method comprises the following steps:
A) the method comprises the steps that a monitoring sensing device is installed on the substation equipment and comprises a monitoring sensor, a communication unit and a control unit, wherein the monitoring sensor monitors the state of the substation equipment, and the monitoring sensor and the communication unit are connected with the control unit;
B) the monitoring system comprises a plurality of collectors and a server, wherein each collector is connected with a plurality of monitoring sensors and comprises a first communication module, a second communication module, a memory and a controller, the monitoring sensors are connected with the controller through the first communication module, the second communication modules are connected with the server, the memory is connected with the controller, the collectors record identification information and threshold information of the monitoring sensors connected with the collectors, and when state data acquired by the monitoring sensors exceed a threshold value, the collectors send alarm information to the server;
in step B), second communication modules G of a plurality of collectors i，i∈[1，N] A communication ring is established between the monitoring sensors, N is the number of collectors, and the communication units R of the four monitoring sensors ij，j∈[1，4] Forming a communication chain, communication unit R i1 And a second communication module G i Connecting;
the monitoring sensor acquires the state of the corresponding substation equipment in a period t, and the communication unit R ij，j∈[1，4] Packing the collected state data of the substation equipment into a data block D in a period T ij T is m times of T, and each data block comprises state data of m transformer substation devices;
communication unit R after the end of period T i4 Generating m-bit binary number B im Associating a time stamp with a communication unit R i4 Is marked withThen uploading to a server;
communication unit R i4 Data block D i1 And a binary number B im To the communication unit R i3 A communication unit R i3 Data block D i4 And a data block D i3 To the communication unit R i2 A communication unit R i2 Data block D i4 Data block D i3 And a data block D i2 To the communication unit R i1 A communication unit R i1 Data block D ij，j∈[1，4] Send to the second communication module G i The second communication module G i Received data block D ij，j∈[1，4] And a binary number B im Then, the data block D is divided into ij，j∈[1，4] Split into 2 parts D after stitching i，1 And D i，2 The second communication module G i The corresponding controller is based on binary number B im Determines whether to use the data block D i，2 Sending to the next second communication module G in the communication ring i+1 A binary number B im Is 1, then the data block D is formed i，2 Sending to the next second communication module G in the communication ring i+1 If the second communication module G is used i+1 Corresponding binary number B (i+1)m If the first position of the first communication module is 1, the second communication module G i+1 Receiving a data block D i，2 And will own data block D i+1，2 Next second communication module G to be sent to the communication ring i+2 Otherwise, the data block D is directly read i，2 Sending to the next second communication module G in the communication ring i+2 After a plurality of periods T, all the second communication modules G i，i∈[1，N] Data block D i，i∈[1，N] Upload to server and discard binary B im ；
C) The server periodically reads state data acquired by the monitoring sensor to obtain a risk prediction result of the substation equipment, the server runs a plan triggering module, and when the prediction result of the fault rate of the substation equipment exceeds a preset threshold value, a corresponding plan is triggered to automatically control the action of the substation equipment or send alarm information to an attendant.
2. The method for managing and controlling the health of a transformer substation integrating multidimensional monitoring and fault information according to claim 1,
in the step A), the transformer substation equipment provided with the monitoring sensing device comprises a transformer, a high-voltage circuit breaker, a disconnecting switch, a lightning arrester, a capacitor and a reactor, the monitoring sensor comprises a transformer oil chromatogram on-line monitoring device, a transformer bushing pressure sensor, a transformer oil level indicator, an infrared temperature sensor, a vibration sensor, a camera and a lightning arrester counter, the infrared temperature sensors are arranged on the transformer, the high-voltage circuit breaker, the isolating switch, the lightning arrester, the capacitor and the reactor and respectively monitor the temperature of the heating part of the corresponding equipment, the vibration sensor is arranged on the shell of the transformer and the high-voltage circuit breaker and is used for detecting the vibration of the transformer and the high-voltage circuit breaker, the camera is arranged on the transformer, the high-voltage circuit breaker, the isolating switch, the lightning arrester, the capacitor and the reactor, and shoots real-time images of corresponding equipment.
3. The method for managing and controlling the health of a transformer substation integrating multidimensional monitoring and fault information according to claim 1,
communication unit R i4 Data block D i4 And a binary number B im To the communication unit R i3 At the time of communication unit R i3 Data block D i4 And a data block D i3 The state data of the included substation equipment is in binary B im Bit value of is exchanged, if the binary number B im Is 1, the data block D is processed i4 And a data block D i3 The state data of the substation equipment collected in the kth period t are exchanged, and the exchanged data block D i4 And a data block D i3 Spliced into data block D i4-3 A communication unit R i3 Data block D i4-3 And a binary number B im To the communication unit R i2 。
4. The method for managing and controlling the health of a transformer substation integrating multidimensional monitoring and fault information according to claim 1,
communication unit R i2 Receiving communication unit R i3 Transmitted data block D i4-3 And a binary number B im Then, the data block D is divided into i4-3 Data block D i2 And a binary number B im To the communication unit R i1 A communication unit R i1 Received data block D i4-3 Data block D i2 And a binary number B im Then, the data block D is divided into i2 And a data block D i1 Spliced into data block D i2-1 Two binary numbers B im Spliced into binary number B i.2m Data block D i4-3 And a data block D i2-1 The state data of the included substation equipment is in binary B i.2m Bit value of is exchanged, if the binary number B i.2m Is 1, the data block D is processed i4-3 And a data block D i2-1 The state data of the substation equipment collected in the kth period t are exchanged, and the exchanged data block D i4-3 And a data block D i2-1 Spliced into data block D i A communication unit R i1 Data block D i And a binary number B im Send to the second communication module G i 。
5. The method for managing and controlling the health of a transformer substation integrating multidimensional monitoring and fault information according to claim 1,
second communication module G i，i∈[1，N] When a communication ring is established, the second communication module G i Second communication module G only recording located communication ring i-1 And a second communication module G i+1 The communication ring assigns the data transmission right in a token manner.
6. The method for managing and controlling the health of a transformer substation integrating multidimensional monitoring and fault information according to claim 5,
the server inserts virtual nodes in the communication ring, and the virtual nodesRecord its second communication module G i-1 And a second communication module G i+1 When the virtual node receives the data, the communication address checks whether the data format accords with the preset format, if not, the communication address is discarded, if so, the data is sent under the name of the virtual node, and if the virtual node receives the data, the communication address receives the second communication module G i-1 The sent data are sent to a second communication module G i+1 If the virtual node receives the second communication module G i+1 The sent data are sent to a second communication module G i-1 。
7. The method for managing and controlling the health of a transformer substation integrating multidimensional monitoring and fault information according to claim 6,
at least two virtual nodes are inserted into each communication ring, and the virtual nodes are entity nodes with communication and data checking functions or virtual machines running in a server.
8. The method for transformer substation health management and control with integration of multidimensional monitoring and fault information according to claim 1 or 2,
in the step C), the method for obtaining the risk prediction result of the substation equipment by periodically reading the state data acquired by the monitoring sensor by the server comprises the following steps:
C1) the server establishes a classification model for each transformer substation device, and manually marks l samples as a training set during establishment of the classification model (x) (1) ，y (1) )，(x (2) ，y (2) )，...，(x (l) ，y (l) )}，y (i) E, e {1,2,. eta, h }, wherein h is the number of fault types of corresponding substation equipment;
C2) let the cost function
Wherein the content of the first and second substances,
to be the parameters of the classification model,
is a weight attenuation term, lambda is more than 0;
C3) and (3) obtaining a classification model parameter which enables the cost function J (theta) to be minimum by using a linear optimization algorithm, namely completing the establishment of the classification model of the corresponding substation equipment.
9. The method for managing and controlling the health of a transformer substation integrating multidimensional monitoring and fault information according to claim 1 or 2,
the plan used in the step C) comprises a triggering condition, an execution content and a release condition, wherein the triggering condition is a threshold value which is required to be met by the state of the corresponding substation equipment when the plan is triggered, the execution content is a measure which is taken for restoring the state of the substation equipment triggering the threshold value to be within a threshold value range, the measure comprises automatically controlling the action of the substation equipment or sending alarm information to an operator on duty, and the release condition is the threshold value which is required to be met by the state of the corresponding substation equipment when the plan is released.
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