CN111654488B - Three-station-in-one transformer substation and sensing terminal information access method - Google Patents
Three-station-in-one transformer substation and sensing terminal information access method Download PDFInfo
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Abstract
The invention provides a three-station-in-one transformer substation and a sensing terminal information access method, solves the problems of large monitoring difficulty caused by multiple access devices, safety partition isolation limitation and complex information uploading in a three-station-in-one mode, and improves the remote monitoring level of the devices and the emergency handling capacity of power grid accidents. The method comprises the following steps: deploying an edge Internet of things gateway in a preset area of the safety of the transformer substation to realize the access of the sensing terminal equipment of the transformer substation; connecting a plurality of monitoring systems deployed in different safety partitions through a forward and reverse isolation device of the transformer substation, and gathering real-time data of various sensing terminals of the transformer substation; and establishing a remote service communication system based on a universal service protocol of the power system to realize plug and play of data between the main stations.
Description
Technical Field
The invention relates to the technical field of electric power automation, in particular to an information access method suitable for a three-station-in-one transformer substation and a sensing terminal.
Background
In order to fully excavate the social comprehensive service potential of a transformer substation and improve the support level of the transformer substation on social public service utilities, a national power grid company explores a new mode of constructing and operating a charging and converting (energy storage) station and a data center station by utilizing transformer substation resources and develops the work of one station with multiple functions of the transformer substation. The function expansion of the transformer substation aims to utilize power grid infrastructure and unique data resource advantages, greatly cultivate advanced services, create an energy internet ecological cycle and form core competitiveness at a new higher level. By deeply excavating the resource value of a substation site, giving play to the advantages of the distribution point and the network of the substation, converting the traditional substation node into an energy hub with the characteristics of source, network, load, storage and the like and with bidirectional and ordered flow of energy, and a data hub for providing infrastructure for cloud-object interconnection and object-object cooperation of the ubiquitous power internet of things, transversely communicating various major fields of operation, distribution, regulation and regulation, creating a service hub, realizing three-in-one of 'energy flow', 'data flow', 'service flow', and finally providing a comprehensive service system comprising a charging and switching service, cloud computing, communication, comprehensive energy service and the like for the society.
The construction content of the three-station-in-one comprises multiple elements such as an intelligent substation, a data center, an intelligent charging station, an energy storage station, a distributed photovoltaic, an electric vehicle charging station and a communication base station, the related content and the profession are complex, but the essence of the three-station-in-one is 'on', the elements are not simply constructed in a substation area, the integration and the communication of the whole service data are carried out, the three-flow-in-one and the integrated operation of 'energy flow', 'data flow', 'service flow' are realized, the aim of converting the substation into the comprehensive energy service station is fulfilled, and the aim of improving the service quality and the economic and social benefits is fulfilled.
A large amount of sensing terminal equipment is accessed after the three stations of the transformer substation are integrated, and if the traditional protocol point number is used for uploading equipment operation information, the point-to-point debugging pressure between the transformer substation and the regulation and control main station is greatly increased, and the problems of insufficient transmission bandwidth between the main stations, insufficient processing capacity and insufficient storage capacity of the main station and the like are aggravated. Meanwhile, the energy storage station and the data center station equipment belong to III/IV equipment in safety protection regulations and cannot be directly communicated with a regulation and control center. Therefore, the regulation and control center timely and accurately masters the state of the sensing terminal equipment of the three-station-in-one transformer substation, which causes great difficulty.
In view of the above, an efficient and convenient device operation state acquisition means is urgently needed, the requirement for remotely monitoring the operation state of the sensing terminal devices of all substations in the governed area is met, power grid device informatization and networking technology resources are fully utilized, device abnormity is timely discovered, potential safety hazards of devices are eliminated, the access and control capabilities of all kinds of sensing terminal devices of the substations are improved, and the safe and stable operation of three-station-in-one is guaranteed.
Disclosure of Invention
In view of this, the embodiment of the invention provides a three-station-in-one substation and a sensing terminal information access method, which solve the problems of large monitoring difficulty caused by multiple access devices, safety partition isolation limitation and complex information uploading in a three-station-in-one mode, and improve the remote monitoring level of devices and the emergency handling capability of power grid accidents.
The sensing terminal information access method of the three-station-in-one transformer substation provided by the embodiment of the invention comprises the following steps:
the system comprises an edge Internet of things gateway and a data communication gateway, wherein the edge Internet of things gateway is used for receiving real-time data of various transformer substation sensing terminals in an energy storage monitoring system and a data center monitoring system, generating instantiation files from the real-time data and sending the instantiation files to the data communication gateway;
the data communication gateway is used for establishing a service facing the monitoring service according to the received instantiation file; and deploying a client following a general service protocol of the power system at a front-end processor of the regulation and control main station, generating a model and a data retrieval interface corresponding to the transformer substation side, and accessing the service of the transformer substation server to acquire data.
In one embodiment, a data model file is established in the energy storage monitoring system and the data center station monitoring system; the data model file takes the measured quantity and the state quantity as the child node names of the model file respectively.
In one embodiment, for a aware terminal that does not support IEC61850 communication protocol: filling the data names, data types and data indexes of the quantity measurement and state quantity into the data model file under the quantity measurement and state quantum nodes according to an information point table provided by a sensing terminal manufacturer; according to a communication protocol provided by an equipment manufacturer, the edge Internet of things gateway and the sensing terminal establish a communication link, and the obtained data value, the data time mark and the data quality are filled into a data model file according to the data name and the data index;
for a aware terminal supporting IEC61850 communication protocol: the method comprises the steps of deploying an IEC61850 client in an edge Internet of things gateway, communicating with a sensing terminal by adopting an IEC61850 protocol, obtaining a data set in the sensing terminal, extracting a quantity measurement and state quantity data list contained in the data set, and writing the extracted data set and the data list into a real-time data sub-node of a data model file, wherein the data set and the data list comprise a data name, a data type, a data index, a data value, a data time mark and data quality.
In one embodiment, the data model file is renamed and backed up periodically in the edge internet of things gateway by taking preset time as a period, and a model instantiation file is generated; and
and forwarding the produced instantiation file to the data communication network shutdown period of the transformer substation II area in the edge Internet of things gateway.
In one embodiment, the data communication gateway analyzes and obtains the real-time data of the sensing terminal device by receiving an instantiation file transmitted by an edge internet of things gateway.
In one embodiment, the data communication gateway receives an instantiation file transmitted by an edge internet of things gateway, and analyzes the instantiation file to obtain real-time data of a sensing terminal, and specifically includes:
deploying the instantiated file transmission and receiving program in a data communication gateway machine of a preset area of the transformer substation, loading a file library provided by a forward and reverse isolation device manufacturer, calling a file receiving interface function, and waiting for receiving the instantiated file;
in the edge Internet of things gateway in a preset area, deploying a file library provided by a forward and reverse isolation device manufacturer, calling a file sending interface, and periodically sending the instantiated file through reverse isolation by taking preset time as a period;
after receiving the instantiation file, the data communication gateway sends a receiving confirmation frame through forward isolation under the condition that the analysis and verification are correct, or sends an error frame through forward isolation under the condition that the analysis and verification are failed;
after receiving the confirmation frame, the edge Internet of things gateway deletes the sent instantiation file; or
The edge Internet of things gateway in the preset area receives the error frame and sends the instantiation file; and
and after the preset times of errors, sending a popup alarm, discarding the instantiated file, and continuing to send the next file.
In one embodiment, the data communication gateway machine extracts all node information in a file to form a model service according to the instantiation file, wherein the node information comprises: the information comprises a data name, a data type and a data index;
extracting a data value, a data time mark and data quality corresponding to each data according to the instantiation file, and establishing association between the data and the data index in a real-time database to form data service;
in the master station front-end processor, accessing a model service of the transformer substation through a model retrieval interface to obtain a generated model;
analyzing the generated model, extracting various sub-node information, and acquiring the data name, the data index and the data type of the state quantity and/or acquiring the measured data name, the measured data index and the measured data type;
importing the data name, the data index and the data type obtained by analysis into a data set retrieval module, forming a data list to be retrieved by the data set retrieval module according to the data index contained in the data set in the node information, retrieving the data service of the transformer substation, and querying the transformer substation in a real-time database after receiving a retrieval request and returning a data value, a data time scale and data quality; and
and after receiving the data value, the data time scale and the data quality, the master station front-end processor transmits the data value, the data time scale and the data quality to a monitoring background for displaying pictures, so that monitoring personnel can monitor the sensing terminal equipment of the transformer substation.
In one embodiment, the manner of referring to the data service of the substation is as follows: request/response or subscribe/publish.
In one embodiment, the data model file format is an XML model.
"three station unification" transformer substations include:
the system comprises an edge Internet of things gateway and a data communication gateway, wherein the edge Internet of things gateway is used for receiving real-time data of various transformer substation sensing terminals in an energy storage monitoring system and a data center monitoring system, generating instantiation files from the real-time data and sending the instantiation files to the data communication gateway;
the data communication gateway is used for establishing a service facing the monitoring service according to the received instantiation file; and deploying a client following a general service protocol of the power system at a front-end processor of the regulation and control main station, generating a model and a data retrieval interface corresponding to the transformer substation side, and accessing the service of the transformer substation server to acquire data.
The embodiment of the invention provides a sensing terminal information access method of a three-station-in-one transformer substation and the transformer substation, which comprise the following steps: deploying an edge Internet of things gateway in a preset area of the safety of the transformer substation to realize the access of the sensing terminal equipment of the transformer substation; the monitoring system is connected with a plurality of monitoring systems through a forward and reverse isolation device of the transformer substation, and collects real-time data of various sensing terminals of the transformer substation; and establishing a remote service communication system based on a universal service protocol of the power system, and realizing plug and play of data between main stations. By constructing the three-station-in-one substation sensing terminal information access method and replacing the traditional protocol point number with a flexible and reliable data on-demand access mode in the mode of a standard model and a service protocol without influencing a safety zone, the signal point-to-point debugging work is avoided, a quick access channel for substation terminal equipment is established, the remote access to the full data of the three-station-in-one substation sensing terminal equipment is realized, the problems of more access equipment, safety zone isolation limitation and high monitoring difficulty caused by complex uplink information in the three-station-in-one mode are solved, and the remote monitoring level of the equipment and the emergency handling capability of power grid accidents are improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic flow chart illustrating a method for sensing terminal information access of a "three-station-in-one" substation according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating a connection of a sensing terminal of a "three-station-in-one" substation according to an embodiment of the present invention;
fig. 3 is a schematic flow chart of a method for sensing terminal information access of a "three-station-in-one" substation according to another embodiment of the present invention;
fig. 4 is a schematic flow chart illustrating a method for sensing terminal information access of a "three-station-in-one" substation according to another embodiment of the present invention;
fig. 5 is a schematic flow chart illustrating a method for sensing terminal information access of a "three-station-in-one" substation according to another embodiment of the present invention;
fig. 6 is a schematic flow chart illustrating a method for sensing terminal information access of a "three-station-in-one" substation according to another embodiment of the present invention;
fig. 7 is a schematic flow chart of a method for sensing terminal information access of a "three-station-in-one" substation according to another embodiment of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The following detailed description is exemplary in nature and is intended to provide further details of the invention. Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
On the basis of the current substation communication architecture, the invention aims to realize the remote monitoring of the three-station-in-one substation sensing terminal equipment based on the GB/T33602-2017 power system general service protocol and the DL/T860 standard, and the remote monitoring comprises the substation sensing terminal equipment access, instantiated file transmission, remote service communication access and the like.
Fig. 1 is a schematic flow chart of a method for sensing terminal information access of a "three-station-in-one" substation according to an embodiment of the present invention. Fig. 2 is a schematic diagram illustrating a connection of a sensing terminal of a "three-station-in-one" substation according to an embodiment of the present invention.
Referring to fig. 2, a sensing terminal of a "three-station-in-one" transformer substation includes a measurement and control device, a protection device, an environment monitoring device, an online monitoring device, a battery monitoring device, and a cabinet monitoring device.
In the safety I area, the monitoring host is connected with the measurement and control device and the protection device; the network of the safety I area and the safety II area is connected through a firewall;
in the safety area II, a front-end processor of the regulation and control master station communicates with a data communication gateway machine of the area II through a dispatching data network, and the data communication gateway machine of the area II is connected with an environment monitoring device and an online monitoring device; the safety area II is connected with the safety area IV through a forward isolation device and a reverse isolation device;
in the safety IV area, the edge Internet of things gateway is connected with the energy storage station monitoring system and the data center station monitoring system.
As shown in fig. 1, the sensing terminal information access method applicable to the "three-station-in-one" transformer substation includes:
firstly, deploying an edge Internet of things gateway in a safety IV area of a transformer substation, connecting an energy storage monitoring system and a data center monitoring system, and realizing the access of sensing terminal equipment of the transformer substation;
secondly, connecting a forward isolation device and a reverse isolation device between a safety II area and a safety IV area of the transformer substation; the system comprises a forward isolation device, a reverse isolation device, a data center monitoring system and a monitoring center, wherein the forward isolation device and the reverse isolation device are connected with an edge internet of things gateway to gather real-time data of various transformer substation sensing terminals collected by the energy storage monitoring system and the data center monitoring system; and
thirdly, deploying a server side following a general service protocol of the power system in the data communication network shutdown machine of the transformer substation safety area II; establishing a service module facing monitoring service according to received instantiation files of various transformer substation sensing terminal devices; a client conforming to a power system universal service protocol is deployed at a front-end processor of a regulation and control main station, a model and a data retrieval interface corresponding to a side service end of a transformer substation are generated, data are acquired by accessing services of the side service end of the transformer substation, and then the data are displayed on a human-computer interface for monitoring and controlling the transformer substation by operation and inspection personnel.
The instantiation file is a file generated by writing real-time data according to a designed xml model format.
The three-station-in-one substation sensing terminal information access method is characterized in that an edge internet of things gateway is deployed at a substation control layer part of a substation, a means for flexibly customizing data sets of various sensing terminals is provided for a regulation and control main station through a forward and reverse isolation device based on a service-oriented design idea, safe zoning of the substation is not influenced, repeated point alignment and debugging work is reduced and avoided by adopting a service mode, and a deployment architecture is flexible and reliable.
Fig. 3 is a schematic flow chart of a method for sensing terminal information access of a "three-station-in-one" substation according to another embodiment of the present invention.
As shown in fig. 3, deploying an edge internet of things gateway in a preset area of substation security to implement access of a substation sensing terminal device includes:
step 011: establishing a data model file in the energy storage station and the data center station monitoring system, wherein the data model file can be preferably an XML data model file. In the energy storage station and data center station monitoring system, an XML data model file is established, a quantity Measurement (MEAS) and a state quantity (STATUS) are respectively used as child node names of the model file, and each quantity measurement comprises 6 attributes of a data name (name), a data type (type), a data index (reference), a data value (value), a data time mark (time) and a data quality (quality).
Step 012: filling measured data names, data types and data indexes under the measurement quantum nodes according to an information point table provided by a sensing terminal equipment manufacturer, and filling the measured data names, data types and data indexes under the state quantum nodes; and filling the data name, the data type and the data index of the quantity measurement and the state quantity under the STATUS and MEAS sub-nodes of the model file according to an information point table provided by a sensing terminal equipment manufacturer.
Step 013: according to a communication protocol provided by an equipment manufacturer, deploying a terminal equipment communication program client in the edge Internet of things gateway, establishing a communication link with sensing terminal equipment, and filling the acquired data value, data time mark and data quality into a model file according to the data name and the data index.
Fig. 4 is a schematic flow chart of a method for sensing terminal information access of a "three-station-in-one" substation according to another embodiment of the present invention.
As shown in fig. 4, deploying an edge internet of things gateway in a preset area of substation security to implement access of a sensing terminal device of a substation includes:
step 011: establishing a data model file in an energy storage station and a data center station monitoring system, wherein the data model file comprises a measurement quantum node and a state quantum node; in the energy storage station and data center station monitoring system, an XML data model file is established, a quantity Measurement (MEAS) and a state quantity (STATUS) are respectively used as child node names of the model file, and each quantity measurement comprises 6 attributes of a data name (name), a data type (type), a data index (reference), a data value (value), a data time mark (time) and a data quality (quality).
Step 014: deploying an IEC61850 client in an edge Internet of things gateway, communicating with equipment by adopting an IEC61850 protocol, acquiring a data set in an equipment report control block, extracting a quantity measurement and state quantity data list contained in the data set, and writing the extracted data set and the data list into a real-time data sub-node of the data model file, wherein the data set and the data list comprise a data name, a data type, a data index, a data value, a data time mark and data quality; the data model file may be an XML model file.
Step 015: the data model file is renamed and backed up periodically in the edge Internet of things gateway by taking preset time as a period, a model instantiation file is generated, and the name of the model instantiation file is named; the preset time may be 5 seconds, in the edge internet of things gateway, the model file is renamed and backed up periodically with a period of 5s to generate a model instantiation file, and the new instantiation file name may be: substation name + equipment name + time.
Step 016: and deploying file transmission service in the edge Internet of things gateway and supporting the periodic transmission of the model instantiation files.
In an embodiment of the present invention, the collecting of real-time data of various sensing terminals of a transformer substation by connecting a plurality of monitoring systems deployed in different safety partitions through forward and reverse isolation devices of the transformer substation includes: and deploying a transmission receiving end following the instantiation file in the data communication gateway machine of the preset area of the transformer substation, and analyzing the instantiation file transmitted by the receiving edge Internet of things gateway to obtain the real-time data of the perception terminal equipment. The real-time data may be quantity measurements and state quantities.
Fig. 5 is a schematic flow chart of a method for sensing terminal information access of a "three-in-one" substation according to another embodiment of the present invention.
As shown in fig. 5, in the data communication gateway machine in the preset area of the substation, deploying a transmission receiving end following an instantiation file, and analyzing to obtain real-time data of the sensing terminal device by receiving the instantiation file transmitted by the edge internet of things gateway, the method includes:
step 021: deploying the instantiated file transmission and receiving program in a data communication gateway machine of a preset area of the transformer substation, loading a file library provided by a forward and reverse isolation device manufacturer, calling a file receiving interface function, and waiting for receiving the instantiated file; the preset zone may be a substation II zone.
Step 022: in the edge Internet of things gateway in a preset area, deploying a file library provided by a forward and reverse isolation device manufacturer, calling a file sending interface, and periodically sending the instantiated file through reverse isolation by taking preset time as a period; the preset area can be an IV area, the preset time can be 5 seconds, a file library provided by a forward and reverse isolation device manufacturer is deployed in an edge Internet of things gateway of the IV area, a file sending interface is called, and the instantiated file generated in the step 021 is sent periodically through reverse isolation in a period of 5 s.
Step 023: after receiving the instantiation file, the data communication gateway sends a receiving confirmation frame through forward isolation under the condition that the analysis and verification are correct, or sends an error frame through forward isolation under the condition that the analysis and verification are failed;
and 024: after receiving the confirmation frame, the edge Internet of things gateway deletes the sent instantiation file; or
Step 025: the edge Internet of things gateway in the preset area receives the error frame and sends the instantiation file; and
step 026: and after the preset times of errors, sending a popup alarm, discarding the instantiated file, and continuing to send the next file. The preset number of times may be 3 times.
Combining the step 024 to the step 026, after the border internet of things gateway receives the acknowledgement frame, deleting the transmitted instantiation file; and after receiving the error frame, returning to the step 021 again, sending the instantiated file, after 3 times of errors, sending a popup alarm, discarding the instantiated file, and continuously sending the next file.
Fig. 6 is a schematic flow chart of a method for sensing terminal information access of a "three-station-in-one" substation according to another embodiment of the present invention.
As shown in fig. 6, the establishing of a remote service communication system based on the universal service protocol of the power system to realize plug and play of data between main stations includes:
step 031: deploying a server following a general service protocol of the power system in the data communication gateway machine of the preset area of the transformer substation; the preset area may be a substation II area.
Step 032: establishing a service module facing to monitoring service according to the received instantiation file of the sensing terminal equipment, wherein the service module comprises model service and data service;
step 033: a client conforming to a power system general service protocol is deployed at a main station front-end processor, a model and a data retrieval interface corresponding to a substation side service end are generated, data are acquired by accessing the service of the substation side service end, and then the data are displayed on a human-computer interface for monitoring and controlling the substation by operation and inspection personnel.
Real-time data in the security IV area are transmitted to the security II area by instantiating the model file and reversely passing through the isolation device, and are uploaded to the master station, and the master station does not need to do library and point-to-point debugging.
Fig. 7 is a schematic flow chart of a method for sensing terminal information access of a "three-station-in-one" substation according to another embodiment of the present invention.
As shown in fig. 7, the establishing of a remote service communication system based on the universal service protocol of the power system to realize plug and play of data between main stations includes:
step 0031: according to the instantiation file, all node information in the file is extracted to form a model service, and preferably, the node information comprises: the information comprises a data name, a data type and a data index;
step 0032: extracting a data value, a data time mark and data quality corresponding to each data according to the instantiation file, and establishing association between the data and the data index in a real-time database to form data service;
step 0033: in the master station front-end processor, accessing a model service of the transformer substation through a model retrieval interface to obtain a generated model; acquiring a generation model; the generated XML model may be obtained.
Step 0034: analyzing the generated model, extracting various sub-node information, and acquiring the data name, the data index and the data type of the state quantity and/or acquiring the measured data name, the measured data index and the measured data type;
step 0035: importing the data name, the data index and the data type obtained by analysis into a data set retrieval module, forming a data list to be retrieved by the data set retrieval module according to the data index contained in the data set in the node information, retrieving the data service of the transformer substation, and querying the transformer substation in a real-time database after receiving a retrieval request and returning a data value, a data time scale and data quality; after receiving the retrieval request, the substation can query the real-time database according to the issued data index list and return a data value, a data time scale and data quality.
It can be understood that the data service of the substation can be accessed through two modes, namely request/response and subscription/publication, and the mode for accessing the data service of the substation includes but is not limited to the two modes, namely request/response and subscription/publication, and the mode for accessing the data service of the substation can be selected according to actual situations, and the mode for accessing the data service of the substation is not limited by the invention.
Step 0036: and after receiving the data value, the data time scale and the data quality, the master station front-end processor transmits the data value, the data time scale and the data quality to a monitoring background for displaying pictures, so that monitoring personnel can monitor the sensing terminal equipment of the transformer substation.
According to the invention, through the model service, the data service and the model instantiation file of the power system universal service protocol, the regulation and control master station can read the real-time data of the sensing terminal equipment of the transformer substation as required, and the remote monitoring target is achieved.
Aiming at the existing system architecture of the transformer substation, the invention realizes the access of various sensing terminal devices of an energy storage station and a data center station in a three-station-in-one transformer substation on the premise of not influencing a safety zone. The sensing terminal equipment data of the energy storage station and the data center station are transmitted through the forward and reverse isolation devices, the monitoring service of the sensing terminal equipment is connected through the XML model instantiation file, the model and the data are read as required through the service interface, manual debugging and maintenance work of the three-station-in-one transformer substation is reduced, consistency of the model and the data of the sensing terminal equipment between main stations is guaranteed, and the monitoring level of the regulation and control main station system on the three-station-in-one transformer substation is improved.
The embodiment of the invention provides a three-station-in-one transformer substation, which is used for realizing the sensing terminal information access method suitable for the three-station-in-one transformer substation. The perception terminal information access method of the three-station-in-one transformer substation comprises the following steps: deploying an edge Internet of things gateway in a preset area of the safety of the transformer substation to realize the access of the sensing terminal equipment of the transformer substation; connecting a plurality of monitoring systems deployed in different safety partitions through a forward and reverse isolation device of the transformer substation, and gathering real-time data of various sensing terminals of the transformer substation; and establishing a remote service communication system based on a universal service protocol of the power system, and realizing plug and play of data between main stations. By constructing the three-station-in-one substation sensing terminal information access method and replacing the traditional protocol point number with a flexible and reliable data on-demand access mode in the mode of a standard model and a service protocol without influencing a safety zone, the signal point-to-point debugging work is avoided, a quick access channel for substation terminal equipment is established, the remote access to the full data of the three-station-in-one substation sensing terminal equipment is realized, the problems of more access equipment, safety zone isolation limitation and high monitoring difficulty caused by complex uplink information in the three-station-in-one mode are solved, and the remote monitoring level of the equipment and the emergency handling capability of power grid accidents are improved.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.
Claims (10)
1. A method for sensing terminal information access is characterized by comprising the following steps:
the system comprises an edge Internet of things gateway and a data communication gateway, wherein the edge Internet of things gateway is used for receiving real-time data of various transformer substation sensing terminals in an energy storage monitoring system and a data center monitoring system, generating instantiation files from the real-time data and sending the instantiation files to the data communication gateway;
the data communication gateway machine is used for establishing service facing the monitoring service according to the received instantiation file; deploying a client following a general service protocol of the power system at a front-end processor of a regulation and control main station, generating a model and a data retrieval interface corresponding to a transformer substation side, and accessing service of a transformer substation server to obtain data;
establishing a data model file in the energy storage monitoring system and the data center station monitoring system; the data model file takes the measured quantity and the state quantity as the child node names of the model file respectively; the edge internet of things gateway generates instantiation files for receiving real-time data of various transformer substation sensing terminals in the energy storage monitoring system and the data center monitoring system according to the structure of the established data model file;
the data communication gateway receives an instantiation file transmitted by an edge Internet of things gateway and analyzes the instantiation file to obtain real-time data of the sensing terminal equipment;
the data communication gateway receives an instantiation file transmitted by an edge Internet of things gateway, analyzes the instantiation file to obtain real-time data of the sensing terminal, and specifically comprises the following steps:
deploying the instantiated file transmission and receiving program in a data communication gateway machine of a preset area of the transformer substation, loading a file library provided by a forward and reverse isolation device manufacturer, calling a file receiving interface function, and waiting for receiving the instantiated file;
in the edge Internet of things gateway in a preset area, deploying a file library provided by a forward and reverse isolation device manufacturer, calling a file sending interface, and periodically sending the instantiated file through reverse isolation by taking preset time as a period;
after receiving the instantiation file, the data communication gateway sends a receiving confirmation frame through forward isolation under the condition that the analysis and verification are correct, or sends an error frame through forward isolation under the condition that the analysis and verification are failed;
after receiving the confirmation frame, the edge Internet of things gateway deletes the sent instantiation file; or
The edge Internet of things gateway in the preset area receives the error frame and sends the instantiation file; and
and after the preset times of errors, sending a popup alarm, discarding the instantiated file, and continuing to send the next file.
2. The aware terminal information access method according to claim 1, wherein for a aware terminal not supporting IEC61850 communication protocol: filling the data names, data types and data indexes of the quantity measurement and state quantity into the data model file under the quantity measurement and state quantum nodes according to an information point table provided by a sensing terminal manufacturer; according to a communication protocol provided by an equipment manufacturer, the edge Internet of things gateway and the sensing terminal establish a communication link, and the obtained data value, the data time mark and the data quality are filled into a data model file according to the data name and the data index;
for a aware terminal supporting IEC61850 communication protocol: the method comprises the steps of deploying an IEC61850 client in an edge Internet of things gateway, communicating with a sensing terminal by adopting an IEC61850 protocol, obtaining a data set in the sensing terminal, extracting a quantity measurement and state quantity data list contained in the data set, and writing the extracted data set and the data list into a real-time data sub-node of a data model file, wherein the data set and the data list comprise a data name, a data type, a data index, a data value, a data time mark and data quality.
3. The perception terminal information access method according to claim 2, wherein the data model file is renamed and backed up periodically in the edge internet of things gateway by taking preset time as a period, and a model instantiation file is generated; and
and forwarding the produced instantiation file to the data communication network shutdown period of the transformer substation II area in the edge Internet of things gateway.
4. The method according to claim 1, wherein the data communication gateway extracts all node information in a file according to the instantiated file to form a model service, wherein the node information includes: the information comprises a data name, a data type and a data index;
extracting a data value, a data time mark and data quality corresponding to each data according to the instantiation file, and establishing association between the data and the data index in a real-time database to form data service;
in the master station front-end processor, accessing a model service of the transformer substation through a model retrieval interface to obtain a generated model;
analyzing the generated model, extracting various sub-node information, and acquiring the data name, the data index and the data type of the state quantity and/or acquiring the measured data name, the measured data index and the measured data type;
importing the data name, the data index and the data type obtained by analysis into a data set retrieval module, forming a data list to be retrieved by the data set retrieval module according to the data index contained in the data set in the node information, retrieving the data service of the transformer substation, and querying the transformer substation in a real-time database after receiving a retrieval request and returning a data value, a data time scale and data quality; and
and after receiving the data value, the data time scale and the data quality, the master station front-end processor transmits the data value, the data time scale and the data quality to a monitoring background for displaying pictures, so that monitoring personnel can monitor the sensing terminal equipment of the transformer substation.
5. The perception terminal information access method according to claim 4, wherein the manner of looking up the data service of the substation is as follows: request/response or subscribe/publish.
6. The method of claim 2, wherein the data model file format is an XML model.
"three station unification" transformer substation, its characterized in that includes:
the system comprises an edge Internet of things gateway and a data communication gateway, wherein the edge Internet of things gateway is used for receiving real-time data of various transformer substation sensing terminals in an energy storage monitoring system and a data center monitoring system, generating instantiation files from the real-time data and sending the instantiation files to the data communication gateway;
the data communication gateway is used for establishing a service facing the monitoring service according to the received instantiation file; deploying a client following a general service protocol of the power system at a front-end processor of a regulation and control main station, generating a model and a data retrieval interface corresponding to a transformer substation side, and accessing service of a transformer substation server to obtain data;
establishing a data model file in the energy storage monitoring system and the data center station monitoring system; the data model file takes the measured quantity and the state quantity as the child node names of the model file respectively;
the data communication gateway receives an instantiation file transmitted by an edge Internet of things gateway, analyzes the instantiation file to obtain real-time data of the sensing terminal, and specifically comprises the following steps:
deploying the instantiated file transmission and receiving program in a data communication gateway machine of a preset area of the transformer substation, loading a file library provided by a forward and reverse isolation device manufacturer, calling a file receiving interface function, and waiting for receiving the instantiated file;
in the edge Internet of things gateway in a preset area, deploying a file library provided by a forward and reverse isolation device manufacturer, calling a file sending interface, and periodically sending the instantiated file through reverse isolation by taking preset time as a period;
after receiving the instantiation file, the data communication gateway sends a receiving confirmation frame through forward isolation under the condition that the analysis and verification are correct, or sends an error frame through forward isolation under the condition that the analysis and verification are failed;
after receiving the confirmation frame, the edge Internet of things gateway deletes the sent instantiation file; or
The edge Internet of things gateway in the preset area receives the error frame and sends the instantiation file; and
and after the preset times of errors, sending a popup alarm, discarding the instantiated file, and continuing to send the next file.
8. The "three-in-one substation" according to claim 7, characterized in that for a perceiving terminal that does not support IEC61850 communication protocol: filling the data names, data types and data indexes of the quantity measurement and state quantity into the data model file under the quantity measurement and state quantum nodes according to an information point table provided by a sensing terminal manufacturer; according to a communication protocol provided by an equipment manufacturer, the edge Internet of things gateway and the sensing terminal establish a communication link, and the obtained data value, the data time mark and the data quality are filled into a data model file according to the data name and the data index;
for a aware terminal supporting IEC61850 communication protocol: the method comprises the steps of deploying an IEC61850 client in an edge Internet of things gateway, communicating with a sensing terminal by adopting an IEC61850 protocol, obtaining a data set in the sensing terminal, extracting a measurement and state quantity data list contained in the data set, and writing the extracted data set and the data list into a real-time data sub-node of a data model file, wherein the data set comprises a data name, a data type, a data index, a data value, a data time mark and data quality.
9. The three-station-in-one substation of claim 8, wherein the data model file is renamed and backed up periodically in the edge internet of things gateway by taking preset time as a period, so as to generate a model instantiation file; and
and forwarding the produced instantiation file to the data communication network shutdown period of the transformer substation II area in the edge Internet of things gateway.
10. The three-in-one substation of claim 7, wherein the data communication gateway machine extracts all node information in a file according to the instantiation file to form a model service, wherein the node information comprises: the information comprises a data name, a data type and a data index;
extracting a data value, a data time mark and data quality corresponding to each data according to the instantiation file, and establishing association between the data and the data index in a real-time database to form data service;
in the master station front-end processor, accessing a model service of the transformer substation through a model retrieval interface to obtain a generated model;
analyzing the generated model, extracting various sub-node information, and acquiring the data name, the data index and the data type of the state quantity and/or acquiring the measured data name, the measured data index and the measured data type;
importing the data name, the data index and the data type obtained by analysis into a data set retrieval module, forming a data list to be retrieved by the data set retrieval module according to the data index contained in the data set in the node information, retrieving the data service of the transformer substation, and querying the transformer substation in a real-time database after receiving a retrieval request and returning a data value, a data time scale and data quality; and
and after receiving the data value, the data time scale and the data quality, the master station front-end processor transmits the data value, the data time scale and the data quality to a monitoring background for displaying pictures, so that monitoring personnel can monitor the sensing terminal equipment of the transformer substation.
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| CN112651183A (en) * | 2021-01-19 | 2021-04-13 | 广西大学 | Reliability evaluation method for quantum distributed countermeasure unified deep hash network |
| CN114422621B (en) * | 2021-12-21 | 2023-10-17 | 南京南瑞继保电气有限公司 | Communication connection method, station control layer device and storage medium |
| CN114338745B (en) * | 2021-12-30 | 2024-01-30 | 国网经济技术研究院有限公司 | Converter station data collection and comprehensive analysis system |
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