Background
In recent years, new technologies such as cloud computing, big data, internet of things, mobile internet, artificial intelligence and the like are widely applied in the power industry, and power enterprises gradually merge into the internet era. With popularization and application of ubiquitous power internet of things, the construction work of a provincial power distribution master station based on a cloud framework is developed, and the demand is met. The operation service of the main network line and the substation is deployed and applied in a production control large area in the form of a local-level dispatching master station system, and the operation service of the 35/10/0.4kV medium-low voltage distribution line is deployed and applied in a management information large area in the form of a provincial-level distribution master station system. According to the requirements of the general scheme of the safety protection of the power monitoring system in the national energy safety (2015) 36, the protection of the power information system needs to follow the basic principles of 'safety partition, network special, horizontal isolation and vertical authentication'. Therefore, the network between the power distribution main station and the dispatching main station system is across regions and safety regions, a power grid map is not realized at present, and real-time big data analysis and calculation facing the main and distribution network cooperation are difficult to develop. The existing application scene mainly aims at the analysis and the verification of a topological model of a single line of a distribution network, the analysis and the calculation of the real-time big data which is oriented to the cooperation of a main network and a distribution network are inaccurate at present, and a mechanism for integrating the overall basic data of a power grid model of the cooperation of the main network and the distribution network is lacked.
Disclosure of Invention
Aiming at the problems that the existing 'power grid one-graph' is not realized at present, the existing application scene mainly aims at the analysis and the verification of a topological model of a single line of a distribution network, an integration mechanism of global basic data of a power grid model for the cooperation of a main network and a distribution network is lacked, and the accurate analysis and the calculation of real-time big data for the cooperation of the main network and the distribution network are difficult to develop, the invention provides an integrated integration method of a main network model and the distribution network, which comprises the following steps:
acquiring topological structure information of a third-level scheduling master station system in a production control area and topological structure information of a second-level power distribution master station system in a management information area;
checking topological structure information of the third-level scheduling master station system and the power distribution master station system;
carrying out data integration on the verified topological structure information of the third-level scheduling master station system and the topological structure information of the second-level power distribution master station system through a forward/reverse physical isolation device;
the third-level scheduling master station is subordinate to a second-level scheduling master station, and the second-level scheduling master station is subordinate to a production control large area.
Preferably, the checking the topology structure information of the third-level scheduling master station system includes:
converting a main network city information model in the topological structure information of the third-level scheduling master station system into a CIM/XML model with a serial number in an IEC CIM format;
analyzing the connection relation of each part of the transformer substation of the CIM/XML model according to a preset standard definition rule;
and when the analyzed connection relation is correct, passing the verification, otherwise, failing to pass the verification.
Preferably, the converting the main network city information model in the topology structure information of the third-level scheduling master station system into a numbered CIM/XML model in IEC CIM format includes:
converting a main network city information model in a CIM/E format in the topological structure information of the third-level scheduling master station system into a CIM/XML model with a serial number in an IEC CIM format;
the main network city information model in the CIM/E format comprises: a switch with a number;
and the serial number of the CIM/XML model is consistent with the serial number of the switch of the main network city information model in the CIM/E format.
Preferably, the topology structure information of the power distribution master station system in the management information large area includes:
and a plurality of distribution network feeders in the TCP server of the secondary distribution main station system are connected with feeder sections, switches and transformers one by one from the outgoing switches of the transformer substation, and have numbered IEC CIM format topological connection relation data.
Preferably, the data integration of the verified topology information of the third-level scheduling master station system and the verified topology information of the second-level power distribution master station system through the forward/backward physical isolation device includes:
and associating the numbered switch of the IEC CIM format main network topology model with the numbered switch equipment of the feeder line of the second-level power distribution main station system on the basis of the same number, and eliminating repeated numbers after association.
Preferably, the main network city information model includes:
and the high-voltage bus of the transformer substation of the third-level dispatching master station system is connected with the transformer, the high-voltage winding, the low-voltage winding, the feeder section, the low-voltage bus and the numbering switch one by one, and then the high-voltage bus is connected with the connection relation of the plurality of circuit breakers through a plurality of lines of the low-voltage winding.
Based on the same conception, the invention provides a main and distribution network model integrated system, which comprises: the system comprises an acquisition module, a verification module and a transmission integration module;
the acquisition module is used for acquiring topological structure information of a third-level scheduling master station system in the production control area and topological structure information of a second-level power distribution master station system in the management information area;
the checking module is used for checking the topological structure information of the third-level scheduling master station system and the power distribution master station system;
the transmission integration module is used for integrating the verified topological structure information of the third-level scheduling master station system and the verified topological structure information of the second-level power distribution master station system through a forward/reverse physical isolation device;
the third-level scheduling master station is subordinate to a second-level scheduling master station, and the second-level scheduling master station is subordinate to a production control large area.
Preferably, the verification module includes: the conversion submodule, the analysis submodule and the pass submodule;
the conversion submodule is used for converting a main network city information model in the topological structure information of the third-level scheduling master station system into a CIM/XML model with a serial number in an IEC CIM format;
the analysis submodule is used for analyzing the connection relation of each part of the transformer substation of the CIM/XML model according to a preset standard definition rule;
and the passing submodule is used for passing the verification when the analyzed connection relation is correct, or else, failing to pass the verification.
Preferably, the conversion sub-module includes: a format conversion submodule;
the format conversion submodule is used for converting a main network city information model in a CIM/E format in the topological structure information of the third-level scheduling master station system into a CIM/XML model with a serial number in an IEC CIM format;
the main network city information model in the CIM/E format comprises: a switch with a number;
and the serial number of the CIM/XML model is consistent with the serial number of the switch of the main network city information model in the CIM/E format.
Preferably, the transmission integration module includes: numbering an integration submodule;
and the numbering integration sub-module is used for associating the numbering switch of the IEC CIM format main network topology model with the TCP server with the numbering switch device of the second-level distribution main station system feeder based on the same numbering, and eliminating repeated numbering after association.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention provides a main and distribution network model integrated integration, which comprises the following steps: acquiring topological structure information of a third-level scheduling master station system in a production control area and topological structure information of a second-level power distribution master station system in a management information area; checking topological structure information of the third-level scheduling master station system and the power distribution master station system; carrying out data integration on the verified topological structure information of the third-level scheduling master station system and the topological structure information of the second-level power distribution master station system through a forward/reverse physical isolation device; the third-level scheduling master station is subordinate to a second-level scheduling master station, and the second-level scheduling master station is subordinate to a production control large area; the method provides a foundation for the construction of a power grid map, and solves the problem that global calculation analysis cannot be carried out due to the lack of a distribution network overall topology model.
Detailed Description
The embodiments of the present invention will be further explained with reference to the drawings.
Example 1:
in the embodiment, a production control large area is used as a first-level scheduling;
the second level scheduling may include scheduling under a production control large area, such as provincial scheduling;
the third level scheduling is a subordinate scheduling of the second level scheduling, such as a prefecture level scheduling.
In order to realize the verification and integration of a main network topology model of a scheduling master station and a distribution network topology model of a distribution master station, form a main and distribution network integrated topology model facing to a power grid one-graph and provide basic data for developing global real-time operation analysis of the power grid, the invention provides a main and distribution network model integrated integration method, which starts from the preparation of the main network topology model and the provincial distribution network topology model of each city, realizes the construction of a complete middle and low voltage power grid topology model by using the technologies of trans-regional transmission, model splicing, verification and the like, is introduced by combining with a method flow chart of fig. 1, and specifically comprises the following steps:
step 1: acquiring topological structure information of a third-level scheduling master station system in a production control area and topological structure information of a second-level power distribution master station system in a management information area;
step 2: checking topological structure information of the third-level scheduling master station system and the power distribution master station system;
and step 3: carrying out data integration on the verified topological structure information of the third-level scheduling master station system and the topological structure information of the second-level power distribution master station system through a forward/reverse physical isolation device;
wherein, the step 1: the method for acquiring the topological structure information of the third-level scheduling master station system in the production control area and the topological structure information of the second-level power distribution master station system in the management information area specifically comprises the following steps:
summarizing city lists participating in constructing the topology model in a certain province, and exporting a main network CIM from a third-level scheduling master station system or acquiring a main network CIM in a service interface mode;
step 2: and checking the topological structure information of the third-level scheduling main station system and the power distribution main station system, and specifically comprises the following steps:
carrying out topology verification on each third-level main network model one by one, and if the verification fails, extracting or discarding the data of the city model through the interface again;
extracting line topology model data of each medium voltage distribution network from a second-stage power distribution main station system;
carrying out topology verification on the distribution network line models one by one, and if the distribution network line models do not pass the verification, extracting or discarding the line model data through the interface again;
the splicing and integration of the main network topology model and the distribution network topology model are realized through cross-region interaction, and the integrated construction of a power grid model from high voltage to medium and low voltage is completed. The specific implementation process is as follows:
(1) a forward direction isolation device 1 is prepared for opening a data transmission channel from a production control area to a management information area. The production control area is accessed to scheduling master station systems of 2 cities in the district of a certain province, the management information area is accessed to a second-level power distribution master station system of the province, and the deployment structure and the information flow direction are schematically shown in the attached figure 2. The model extraction module of the production control large area acquires a main network topology model in a CIM/E format from a local city scheduling master station system, verifies and converts the main network topology model into the CIM/XML format, and then sends the CIM/XML format to a second-stage power distribution master station through a forward isolation device to complete splicing and integration with a distribution network model, wherein configuration information of related systems is shown in table 1.
TABLE 1 Power grid model-related System configuration information Table
(2) The forward isolation devices were network configured as shown in table 2. Adding a configuration strategy, setting an intranet IP to be 192.168.1.205, and setting a corresponding virtual IP address to be 192.168.1.251; meanwhile, the IP address of the external network is set to be 172.16.5.21, the corresponding virtual IP address is set to be 172.16.5.251, and the isolating device can be restarted to take effect after the storage.
Table 2 isolation device configuration information table
(3) In a production control large area, a model extraction module is utilized to call an IEC61968 standard information interaction interface of a scheduling master station system of a certain city to obtain a master network model in a CIM/E format, and the content of a return result is shown in the following master network CIM/E model content of the certain city. The Substation, the BusbarSection bus, the PowerTransformer end transformer winding, the ac linkage feed line section, the Breaker switch, the connection node, and the Terminal are introduced by combining with the topological connection relation diagram corresponding to the main network model in a certain place of fig. 3.
Some market network CIM/E model content:
and step 3: and carrying out data integration on the topological structure information of the third-level dispatching master station system and the topological structure information of the second-level power distribution master station system which pass the verification through a forward/reverse physical isolation device, and specifically comprising the following steps:
transmitting each city model passing topology verification from the production control area to a second-level power distribution master station system of the management information area in a trans-regional mode through a forward physical isolation device;
the integrated splicing of the main network topology model and the distribution network topology model is realized, and complete power grid topology model data are formed;
and carrying out complete power grid topology model verification according to the IEC61970 standard.
The model extraction module is responsible for functions of model extraction, topology verification, format conversion and the like, and the model extraction is mainly in a mode of accessing an application service interface or API (application program interface) calling; the topology verification is to judge all node elements one by one from a power supply point according to the node relevance, determine whether isolated nodes due to lack of relevance exist, judge that the isolated nodes do not pass if the isolated nodes exist, discard the extracted model and record error content at the moment, and otherwise, perform the next step of model conversion; the format conversion is to convert the CIM/E model of IEC 61970-555 standard into the CIM/XML model of IEC 61970-552 standard, so that the integration of the main network and the distribution network model is conveniently carried out.
(4) And analyzing the main network model in the CIM/E format according to rules defined by IEC61970 standard to obtain 1 transformer, 2 transformer windings, 2 buses, 5 feeder segments, 3 switches, 8 connection points and 18 terminals, wherein the topological connection relation diagram is shown as the main network model connection relation diagram in the attached figure 3, and all the electrical elements are normally connected and pass topology verification. (5) The main network model in the CIM/E format is converted into a model file in a corresponding CIM/XML format, the content of the CIM/XML model corresponding to the main network model in a certain place is detailed as follows, the main network CIM/XML file is transmitted to a TCP server side of an 172.16.5.21 host computer by a cross-region transmission module of a model extraction module through a forward isolation device, and a specified position is stored, for example, in a/opt/across/files directory.
The CIM/E model content of the certain city main network, the CIM/XML model content corresponding to the certain city main network model and the topology model defined in the graph 3 define a topology model in a certain 110kV transformer substation, namely, the topology model is connected with a feeder section, a transformer, a high-voltage winding, a low-voltage winding, a feeder section and a low-voltage bus one by one from a high-voltage bus, and is finally connected to 3 circuit breakers through three low-voltage windings.
(6) Two large feeder CIM/XML model files with the serial numbers of substation outgoing switches ID _ BK _350_78370092801 and ID _ BK _350_78370092802 are extracted from the second-level distribution main station system, and the contents are shown as CIM/XML model contents of a distribution network feeder A and CIM/XML model contents of a distribution network feeder B.
(7) Analyzing the two large feeder CIM/XML model files according to rules defined by IEC61970 standard, wherein a feeder where an outlet switch with the number of ID _ BK _350_78370092801 is located obtains 1 bus, 5 feeder segments, 3 switches, 1 distribution transformer, 10 connection points and 20 terminals, a feeder where an outlet switch with the number of ID _ BK _350_78370092802 is located obtains 1 bus, 8 feeder segments, 4 switches, 2 distribution transformers, 16 connection points and 32 terminals, the topological connection relations of the two large feeder CIM/XML model files are as shown in a topological connection relation diagram corresponding to the CIM/XML model of a distribution network feeder A in the attached figure 4 and a topological connection relation diagram corresponding to the CIM/XML model of a distribution network feeder B in the attached figure 5, and all electrical elements are normally connected and pass topology verification.
The CIM/XML model content of the distribution network feeder line A and the attached figure 4 define a topological model of a certain line A, namely, the topological model is formed by connecting a feeder line segment, a switch and a transformer one by one from a transformer substation outgoing switch;
the CIM/XML model content of the distribution network feeder B and the accompanying drawing 5 define a topology model of a certain line B, that is, the topology model is connected with a feeder segment, a switch and a transformer one by one from a substation outlet switch until a tie switch or a distribution transformer of another line.
(8) The method comprises the steps of utilizing the unique number of the switch equipment to carry out main network and distribution network model association, after repeated elements are removed, integrating 1 main network CIM/XML model and 2 distribution network CIM/XML models into a complete main network and distribution network integrated model, wherein a topological connection relation diagram is shown as a topological connection relation diagram corresponding to the main network and distribution network integrated model in the attached figure 6, and the topological connection relation diagram is arranged into a corresponding model file which is shown as the following main network and distribution network integrated CIM/XML model content.
(9) And finishing the construction of the integrated topological model of the main network and the distribution network based on the IEC61970 standard.
The invention provides a medium-low voltage cooperation oriented integrated power grid topology model construction method, which comprises the following steps: the method realizes the cross-region transmission of the CIM model based on the IEC61970 standard from a production control region to an information management region by relying on a third-level scheduling master station system and a second-level power distribution master station system, and establishes an integrated power grid topological model from a high-voltage power grid to a medium-low voltage power grid by using cross-region interaction, topological verification and splicing methods, so that the verification and integration requirements of a main network and a distribution network model based on the IEC61970 standard are met, a solution is provided for the rapid establishment and updating of a 'power grid one-map', and the problem that the overall calculation analysis cannot be carried out due to the lack of the distribution network overall topological model is solved.
Example 2:
based on the same concept, the invention provides a main and distribution network model integrated system, which is introduced by combining the system structure diagram of fig. 7, and comprises the following steps: the system comprises an acquisition module, a verification module and a transmission integration module;
the acquisition module is used for acquiring topological structure information of a third-level scheduling master station system in the production control area and topological structure information of a second-level power distribution master station system in the management information area;
the checking module is used for checking the topological structure information of the third-level scheduling master station system and the power distribution master station system;
the transmission integration module is used for integrating the verified topological structure information of the third-level scheduling master station system and the verified topological structure information of the second-level power distribution master station system through a forward/reverse physical isolation device;
the third-level scheduling master station is subordinate to a second-level scheduling master station, and the second-level scheduling master station is subordinate to a production control large area.
The verification module comprises: the conversion submodule, the analysis submodule and the pass submodule;
the conversion submodule is used for converting a main network city information model in the topological structure information of the third-level scheduling master station system into a CIM/XML model with a serial number in an IEC CIM format;
the analysis submodule is used for analyzing the connection relation of each part of the transformer substation of the CIM/XML model according to a preset standard definition rule;
and the passing submodule is used for passing the verification when the analyzed connection relation is correct, or else, failing to pass the verification.
The conversion submodule comprises: a format conversion submodule;
the format conversion submodule is used for converting a main network city information model in a CIM/E format in the topological structure information of the third-level scheduling master station system into a CIM/XML model with a serial number in an IEC CIM format;
the main network city information model in the CIM/E format comprises: a switch with a number;
and the serial number of the CIM/XML model is consistent with the serial number of the switch of the main network city information model in the CIM/E format.
The transmission integration module comprises: numbering an integration submodule;
and the numbering integration sub-module is used for associating the numbering switch of the IEC CIM format main network topology model with the TCP server with the numbering switch device of the second-level distribution main station system feeder based on the same numbering, and eliminating repeated numbering after association.
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.
The present invention is not limited to the above embodiments, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention are included in the scope of the claims of the present invention which are filed as the application.