CN109344476B - CIM model-based power distribution network single line diagram line branch structure generation method and device - Google Patents
CIM model-based power distribution network single line diagram line branch structure generation method and device Download PDFInfo
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- CN109344476B CN109344476B CN201811097182.3A CN201811097182A CN109344476B CN 109344476 B CN109344476 B CN 109344476B CN 201811097182 A CN201811097182 A CN 201811097182A CN 109344476 B CN109344476 B CN 109344476B
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- G06—COMPUTING; CALCULATING OR COUNTING
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- 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
Abstract
The invention discloses a generation method and a device of a single line drawing circuit branch structure of a power distribution network based on a CIM (common information model), which are used for carrying out data preparation and preprocessing according to a CIM power grid model of a PMS2.0 system, calculating internal main branches and branch hierarchical structures of station-room equipment by combining with service characteristics through depth priority and a maximum path algorithm, and then calculating the main branches and branch hierarchical structures of the single line drawing so as to construct a complete topological structure.
Description
Technical Field
The embodiment of the invention relates to the field of single line drawing of power distribution networks, in particular to a method and a device for generating a branch structure of a single line drawing circuit of a power distribution network based on a CIM model.
Background
The distribution network is an important component in the power system, is generally composed of equipment such as a distribution substation, switch equipment, load, distribution lines and the like, and has the characteristics of multiple equipment types, large quantity, complex structure, dynamic change and the like. The power distribution network line is failed and suddenly cut off, which usually causes personal injury or causes serious damage to equipment and is difficult to repair, thereby causing great loss to national economy. In order to improve the reliability and controllability of electricity consumption of the power distribution network line and reduce the loss of national property and personnel, the power distribution network line needs to be efficiently monitored and displayed.
The single line diagram of the distribution network is a common method for graphically displaying the topology of the distribution line. With the continuous expansion, upgrading and reconstruction of distribution network systems, each change of distribution network lines may require timely modification of the associated single line diagram. The traditional single line diagram is manually drawn on a drawing by a professional technician or manually drawn by using auxiliary drawing software related to electric power, and has the defects of high drawing cost, low efficiency, easiness in error, low effectiveness and poor reusability.
Therefore, for the problems of high drawing cost, low efficiency, low effectiveness and poor reusability existing in the prior art, a targeted automatic drawing algorithm for the power distribution network line is still required to be designed to realize real-time automatic drawing of the single line diagram so as to improve the working efficiency, reduce the operation cost and improve the accuracy, the usability and the effectiveness of the line graph data.
Disclosure of Invention
The embodiment of the invention provides a generation method, a device and terminal equipment of a single line drawing circuit branch structure of a power distribution network based on a CIM model, wherein the CIM model is based on a national power grid equipment operation and maintenance lean management system, and a circuit topology structure is traversed automatically through an algorithm to generate a circuit branch object with a hierarchical relationship for the single line drawing automatic layout algorithm of the power distribution network based on the CIM model.
In a first aspect, a method for generating a single line drawing circuit branch structure of a power distribution network based on a CIM model is provided, and the method comprises the following steps:
acquiring equipment model data of a power distribution network line, and preprocessing the equipment model data to generate an equipment topological structure;
based on the equipment topology structure, calculating an internal main branch structure of power grid equipment in the station;
and calculating the branch structure of the whole line by using the main branch structure in the equipment.
In a second aspect, a generation device for a single line drawing circuit branch structure of a power distribution network based on a CIM model is provided, and the device comprises: a processor and a memory for storing program code; and the processor is used for reading the program codes stored in the memory and executing a power distribution network single line diagram circuit branch structure generation method based on the CIM model.
In a third aspect, there is provided a terminal device comprising: the power distribution network single line diagram line branch structure generating device based on the CIM model further comprises an operation, maintenance and lean management system based on the national power grid equipment; the power distribution network single line drawing line branch structure generating device based on the CIM model is connected with a drawing model interface of the operation and maintenance lean management system based on the national power grid equipment.
Compared with the prior art, the invention acquires the line model, performs model analysis and verification, automatically analyzes the correctness of the equipment model and the connectivity of the equipment topology of the distribution network line, determines each level of master-slave branches, generates a branch topology structure which is connected step by step, adopts a distribution network single line diagram layout algorithm to logically position equipment objects based on the branch topology, has the characteristics of automatic verification of the model, high efficiency and high accuracy, greatly reduces the labor intensity of workers, avoids the inconsistency of repeated construction and pattern data, further improves the operational economy and the reliability of the pattern data, provides visual data for analyzing and improving the reliability and the safety of the distribution network operation, and provides unified graph basic data for various service systems with integrated operation, distribution and adjustment.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a flowchart of a method for generating a branch structure of a single line diagram of a power distribution network based on a CIM model according to an embodiment of the present invention;
FIG. 2 is a flowchart of a method for calculating an internal main branch structure of an in-station power grid device according to an embodiment of the present invention;
FIG. 3 is a flow chart of a single point to all leaf node branch generation method;
FIG. 4 is a flow chart of a branching hierarchy generation method;
fig. 5 is a flowchart of a method for generating a single-line diagram circuit branch structure of a power distribution network based on a CIM model according to the second embodiment of the present invention;
FIG. 6 is a typical single line diagram and device example diagram;
fig. 7 is a schematic structural diagram of a generating device of a single-line diagram circuit branch structure of a power distribution network based on a CIM model according to the second embodiment of the present invention.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
Related noun terminology:
(a) Terminal: and the junction point corresponds to the physical equipment of the power distribution network. Through the connection relation among the terminals, a topological structure among the devices can be constructed. And (5) corresponding to an IDevicePort data model in the algorithm.
(b) And (3) equipment model: and the device information model accords with the CIM power grid model definition. Defining the ID, name, terminal, status of the device (transaction status of the device such as add, delete, cut in and out, etc.), and other traffic information, etc. And (5) corresponding to an IDevicePoint data model in the algorithm.
(c) The connection point is as follows: a data model defining a terminal connection relationship includes a plurality of terminals and their respective states. Terminals within the same connection point are interconnected. And the IConnection type node data model in the corresponding algorithm.
(d) Line branching: a non-bifurcated logic device chain is formed by connecting a plurality of distribution network devices in series through device terminals thereof. Corresponding to the IBarch data type in the algorithm.
(e) Line main branch: reference to device layout in single line diagram. In determining the line main branch, various rules may be employed: for example, designating a primary branch by a model; in the double power station room line model, a branch connected with a double power station room is taken as a main branch; the current display habit is matched, and the longest branch of which the transformer substation is the starting point can be used as a main branch; it may be considered that the most branches of the ring main unit devices are included as main branches from the substation. How to determine the main branch can be flexibly customized according to specific service requirements.
(f) Branch length: logical number of devices in the branch. In order to flexibly determine the length of the branch, some distribution network devices do not count the length, such as wire segment devices, connector devices (cable terminals, outgoing points, etc.), algorithm created virtual devices, etc., and the default length weights of the several devices are 0, and the default weights of the branch lengths are 1. The length weights of the devices can be dynamically configured to determine the branch lengths as needed. The device weights are determined by the Branches attribute of the IDevicePoint object.
(h) PMS2.0: an operation and maintenance lean management system based on national power grid equipment (assets).
(i) CIM power grid model: public information model Common Information Model.
The traditional single line diagram is manually drawn on a drawing by a professional technician or manually drawn by using auxiliary drawing software related to electric power, so that the drawing cost is high, the efficiency is low, errors are easy to occur, and the effectiveness is low and the reusability is poor.
Aiming at the situation, the first embodiment of the invention provides a generation method of a single line drawing circuit branch structure of a power distribution network based on a CIM model, wherein the generated branch structure data is input as a device topology structure of an automatic layout algorithm. As shown in fig. 1, the method comprises the steps of:
s101, obtaining model data.
The invention obtains model data through the graph-model interface of the PMS 2.0.
S102, analyzing and checking the model to generate a device topological structure.
According to the business rule, the correctness of the equipment model data of the distribution network line is automatically checked, the abnormal model data is removed and recorded, an equipment topological structure is generated, and the connectivity of the equipment topological structure is analyzed.
S103, calculating an internal main branch structure of the power grid equipment in the station based on the equipment topology structure.
As shown in fig. 2, the method for calculating the internal main branch structure of the power grid device in the station specifically includes:
s1031, acquiring all in-station power grid equipment object sets.
S1032, creating a virtual station internal terminal and establishing a connection relation with the station external equipment according to the external equipment terminal, and disconnecting the connection relation between the original external equipment terminal and the station external equipment.
S1033, judging whether the power grid equipment in the station comprises a bus or not;
s1034, if a busbar is included, first establishing two endpoint busbar device objects: bus id_start, bus id_end; according to the equipment number n of the direct bus, establishing n bus equipment object buses ID_TEMP_1; establishing connection between n+2 bus equipment objects; taking each bus equipment object as a topology starting point, adopting a main branch construction method to calculate a corresponding main branch structure, and entering step 1037;
s1035, if the bus is not included, circulating to take any equipment in the station as a starting point, and calculating a main branch taking the equipment as the starting point by adopting a main branch construction method;
judging whether non-traversed equipment exists in the station building, if so, calculating a main branch taking the non-traversed equipment as a starting point, selecting a longer main branch as a temporary station building main branch, until all the station building equipment is traversed, and selecting a main branch with the longest path as the main branch of the station building equipment.
S1036, sequentially adopting a main branch construction method to calculate the sub-branch structure of each device on the main branch.
S104, calculating the branch structure of the whole line.
As shown in fig. 3, the calculation method of the branching structure of the whole line is as follows:
s1041, creating a line branching structure computing environment: an IBarch object is created.
S1042, determining a main branch of a line, judging whether a main branch designated by a service exists, if so, turning to step S1045; if not, it is determined whether the line has a substation, and if so, the process proceeds to step S1043, and if not, the process proceeds to step S1044.
S1043, calculating paths from the transformer substation to all topological leaf node equipment by adopting a main branch construction method, and selecting the longest path in all paths as a main branch, and then entering step S1045;
s1044, calculating a main branch taking any equipment as a starting point by adopting a main branch construction method, and temporarily setting the main branch as a main branch of a line; if all the equipment nodes are not traversed, calculating main branches taking the equipment as a starting point by adopting a main branch construction method, comparing all the main branches, selecting a longer main branch as a line main branch, and entering step S1045;
s1045, after determining the main branch of the line, sequentially traversing all nodes on the main branch, and calculating a branch structure with all nodes on the main branch of the line as starting points by adopting a main branch construction method until all main branch nodes of the line are traversed, as shown in fig. 4;
s1046, adding the line main branch information to the branch information of each device.
Fig. 5 is a schematic diagram of a circuit branch structure generation method of a power distribution network based on a CIM model according to a second embodiment of the present invention. Taking the station building equipment shown in fig. 6 as an example, the method shown in fig. 2 includes the following steps:
s201, the graph model interface acquires model data and preprocesses the model data.
The specific implementation manner of the step S201 is as follows:
s2011, model data acquisition: and obtaining line model data conforming to CIM power grid model specifications from the PMS2.0 system by a graph model interface.
S2012, checking the model data: and generating a corresponding station house type equipment instance object according to the type information of the equipment in the line model, and performing model data verification. And rejecting the model data which does not meet the necessary conditions for model construction.
S2013, device topology establishment and connectivity detection: and establishing a connection relation between devices according to the connection point information in the model, and constructing a device topological structure. And detecting connectivity of the topological structure by using a starting point of a topological top-layer equipment transformer substation, and removing a topological island.
The non-terminal equipment is processed according to the algorithm requirement. Such as a tower plant, a cable head plant, etc., although not directly connected to the plant, should not be removed if its attached connection point belongs to the topological primary island unless its attached connection point is located in a topological island.
After the data preprocessing is completed, a connected device topological structure without isolated devices is obtained, and then a branch structure of the devices in the station building is started to be established.
S202, calculating the internal main branch structure of the equipment in the station house.
Station houses are a type of container-like equipment that contains a number of different types of grid equipment. Whether or not the secondary station building contains a busbar can be divided into two categories: a station building containing bus bars and a station building not containing bus bars. For a station building containing a bus bar, it is generally composed of the bus bar and a plurality of co-directional branches T-connected to the bus bar. For a station room without a bus, the station room is composed of a communicated station room equipment topology, the branch structure takes the longest end-to-end equipment chain in the station room as a main branch, and sub-branches are calculated step by step according to the main branch. From the service point of single line drawing, the layout mode of the equipment in the station house is different from that of the common equipment, and the equipment is shown in fig. 3.
S2021, calculating an internal main branch structure of the station building equipment comprising the bus.
Taking a bus as a starting point, and according to equipment directly connected with the bus, firstly splitting the bus to form a plurality of interconnected bus equipment. For each bus equipment object, calculating a main branch taking split bus equipment as a starting point by a main branch construction method, and then calculating a branch structure of each branch step by step.
The main branch construction method comprises the following steps:
(1) Initializing a starting point device, a set of devices to which the starting point device is connected, a set of accessed devices, and a set of non-accessed devices.
(2) And determining starting point equipment to be calculated and environment variables, and judging whether the calculation is completed or not.
(2-1) constructing a device set N to which the starting point device is connected and which is not among the accessed device sets;
(2-2) if the device set N is empty, indicating that the starting point device is a topological leaf node, creating an IBarch object child bar, adding the starting point device into the child bar object, and entering the step (2-5);
(2-3) if the device set N is not empty, adding the devices in set N to the set of non-accessed devices;
(2-4) traversing the devices in the non-accessed device set, starting with the devices in the non-accessed device set, and turning to the step (2-1);
(2-5) whether the IBarch object contains the access device of the layer, if not, adding the IBarch object to the IBarch object, and turning to the step (2-1).
(3) And adding the starting point device into all the returned IBarch objects, and selecting the longest path in all the IBarch objects as a main branch of the starting point device.
S2022, calculating an internal main branch structure of the station building equipment without the bus.
With the devices in the station building as inputs, all possible paths are calculated with each device as a starting point device, and the main branch is found according to the main branch determination rule. Based on the main branch, each level of sub-branches is recursively generated.
Based on the characteristics of the station building equipment, in order to simplify the complexity of branch calculation, after the calculation of the branch structure in the station building equipment is completed, when the algorithm calculates the branch structure of the whole line, the station building and the internal equipment thereof are combined into a single equipment to participate in the calculation of the branch structure of the line. In order to maintain the original connection relationship, virtual station room terminals are created to establish connection with external equipment, and the virtual station room terminals are in one-to-one correspondence with external connection terminals in the station room.
S203: the line branching structure is calculated.
After the calculation of the branch structure in the equipment in the station room is completed, the branch structure of the whole line is calculated. First is the determination of the main branch, which is the basis of the line branch structure calculation.
As previously described for the main line branch, there are a number of ways to determine the main line branch. If the main branch of the line is not designated, the line can be divided into two cases including a transformer substation and a non-transformer substation according to whether the line includes the transformer substation or not. And for a line comprising a transformer substation, traversing paths from the transformer substation to all topological leaf node devices by taking transformer substation equipment in a line model as starting point equipment, and selecting a main line with the longest path length. And for the line which does not contain the transformer substation, calculating paths from each device to other topological leaf node devices, and selecting the longest path from all paths as a main branch of the line. The length of the path is determined by the sum of the branch attribute values of all devices on the path.
After the main branch is determined, the equipment on the main branch is used as a starting joint, the corresponding secondary main branch is calculated recursively layer by layer, and finally the branch structure of the whole line is calculated.
So far, the branch structure in the station room and the line branch structure are calculated.
The embodiment of the invention provides terminal equipment with functions of a power distribution network single line drawing circuit branch structure generation method based on a CIM model. The terminal device includes a main processor, and the main processor is used as an execution component for executing the connection line path of the single line diagram of the computing power system to execute the methods described in the first to second embodiments, and the specific implementation process is referred to the first to second embodiments and is not repeated.
The terminal equipment further comprises a PMS2.0 based on the operation and maintenance lean management system of the national power grid equipment, and the main processor is connected with a graph-model interface of the PMS2.0 to acquire model data.
Fig. 7 is a schematic structural diagram of a generating device of a single-line diagram circuit branch structure of a power distribution network based on a CIM model according to the third embodiment of the present invention. The apparatus shown in fig. 7 may be applied as a main processor in a terminal device. As shown in fig. 7, the apparatus 300 may have a structure including: at least one processor (processor) 301, memory (memory) 302, peripheral interface (peripheral interface) 303, input/output subsystem (I/O subsystem) 304, power lines 305, and communication lines 306.
In fig. 5, arrows represent communication and data transfer between components of the computer system, and may be implemented using a high-speed serial bus (high-speed serial bus), a parallel bus (parallel bus), a storage area network (SAN, storage Area Network), and/or other suitable communication techniques.
The power line 305 may supply power to all or part of the circuit elements of the terminal device. For example, the power line 305 may include more than one power source such as a power management system, a battery or Alternating Current (AC), a charging system, a power failure detection circuit (power failure detection circuit), a power converter or inverter, a power status flag, or any other circuit element for power generation, management, distribution.
The processor 301 may perform the various functions of the device 300 and process data by implementing software modules or instruction set architectures stored in the memory 302. That is, the processor 301 may be configured to process commands of a computer program by executing basic arithmetic, logic, and input/output operations of a computer system.
The processor 301 is configured to perform the method of generating a single line drawing line branching structure for a power distribution network based on a CIM model described in the method section above.
The embodiment of fig. 7 is only one example of an apparatus 300, and the processing apparatus 300 may have the following structure or configuration: the circuit elements shown in fig. 7 are omitted, or additional circuit elements not shown in fig. 7 are further provided, or two or more circuit elements are combined. For example, the computer system of the communication terminal for a mobile environment may further include a sensor or the like in addition to the circuit elements shown in fig. 7, and may also include a circuit for RF communication of various communication modes (WiFi, 6G, LTE, bluetooth, NFC, zigbee, etc.) in the communication line 306. The circuit elements that may be included in the device 300 may be implemented by hardware, software, or a combination of both hardware and software that includes more than one signal processing or application specific integrated circuit.
For convenience of description, the above devices are described as being functionally divided into various units, respectively. Of course, the functions of each element may be implemented in the same piece or pieces of software and/or hardware when implementing the present invention.
In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for apparatus or system embodiments, since they are substantially similar to method embodiments, the description is relatively simple, with reference to the description of method embodiments in part. The apparatus and system embodiments described above are merely illustrative, in which elements illustrated as separate elements may or may not be physically separate, and elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
Those of ordinary skill in the art will understand and implement the present invention without undue burden. The foregoing is merely exemplary of the invention and it will be appreciated by those skilled in the art that variations and modifications may be made without departing from the principles of the invention, and it is intended that the invention also be limited to the specific embodiments shown.
Claims (3)
1. A generation method of a single line drawing circuit branch structure of a power distribution network based on a CIM model is characterized by comprising the following steps:
acquiring equipment model data of a power distribution network line, and preprocessing the equipment model data to generate an equipment topological structure;
based on the equipment topology structure, calculating an internal main branch structure of power grid equipment in the station;
calculating the branch structure of the whole line by using the main branch structure in the equipment;
the step of preprocessing the equipment model data comprises the following steps:
generating a corresponding power grid equipment instance object according to the type information of equipment in the equipment model of the power distribution network line, checking the correctness of model data, and eliminating model data which do not meet the necessary conditions for model construction;
establishing a connection relation between power grid equipment according to connection point information in an equipment model of a power distribution network line, and constructing an equipment topological structure;
detecting connectivity of a topological structure of the equipment, and removing a topological island;
the calculation method of the internal main branch structure of the power grid equipment in the station comprises the following steps:
acquiring all in-station equipment object sets, creating a virtual in-station terminal and establishing a connection relationship with out-station equipment;
judging whether the equipment in the station comprises a bus or not, and calculating an internal main branch structure of the equipment comprising the bus and the equipment not comprising the bus;
the internal main branch structure calculation method of the equipment comprising the bus comprises the following steps:
taking a bus as a starting point, splitting the bus to form a plurality of interconnected bus devices; calculating main branches of bus equipment by taking each bus equipment as a topology starting point and adopting a main branch construction method, and then calculating sub-branch structures of all equipment on each main branch by adopting the main branch construction method step by step;
the internal main branch structure calculation method of the equipment without the bus comprises the following steps:
calculating main branches with any equipment in a station as a starting point, traversing in sequence, calculating main branches of all equipment, selecting the longest main branch as the main branch of the equipment, and calculating sub-branch structures of all equipment on the main branch by adopting a main branch construction method based on the main branch;
the calculation method of the branch structure of the whole line comprises the following steps:
determining a main branch of a line, traversing all nodes on the main branch in sequence, taking all nodes on the main branch as starting nodes, adopting a main branch construction method to calculate a branch structure taking all nodes on the main branch of the line as starting points until all nodes of the main branch of the line are traversed, and finally calculating the branch structure of the whole line;
the main branch determining method of the circuit comprises the following steps:
for a line comprising a transformer substation, taking transformer substation equipment in a line model as starting point equipment, calculating paths from the transformer substation to all topological leaf node equipment by adopting a main branch construction method, and selecting a path with the longest path length as a main branch of the line;
and for the line which does not contain the transformer substation, calculating the paths from each device to other topological leaf node devices by adopting a main branch construction method, and selecting the longest path from all paths as a main branch of the line.
2. The method for generating the single-line drawing line branch structure of the power distribution network based on the CIM model according to claim 1, wherein the main branch construction method is as follows:
(1) Constructing a device set N which is connected with the starting point device and is not in the accessed device set;
(2) If the device set N is not empty, adding the devices in the set N into the non-accessed device set; traversing the devices in the non-access device set, taking the devices in the non-access device set as a starting point, and returning to the step (1);
(3) If the equipment set N is empty, indicating that the starting point equipment is a topological leaf node, creating an IBarc object, adding the starting point equipment into the object, judging whether the IBarc object contains access equipment of the layer, and if not, adding the IBarc object into the IBarc object;
(3) And adding the starting point device into all the returned IBarch objects, and selecting the longest path in all the IBarch objects as a main branch of the starting point device.
3. The utility model provides a distribution network single line drawing circuit branch structure generation device based on CIM model which characterized in that includes: a processor and a memory for storing program code; the processor being configured to read the program code stored in the memory and to perform the method of any one of claims 1 to 2.
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| CN112383145B (en) * | 2020-11-12 | 2022-09-02 | 山东鲁软数字科技有限公司 | Line splitting method and system for improving mapping effect of distribution ring network diagram |
| CN113761693A (en) * | 2020-11-27 | 2021-12-07 | 浙江华云信息科技有限公司 | Automatic graph adjusting method based on topology and grid |
| CN113190936B (en) * | 2020-12-25 | 2023-03-03 | 深圳供电局有限公司 | Low-voltage single-line diagram drawing method, power system, computer device, and storage medium |
| CN113360686B (en) * | 2021-06-22 | 2022-06-14 | 南京南瑞信息通信科技有限公司 | Power distribution network single line diagram storage method, retrieval system and server |
| CN113688485B (en) * | 2021-07-08 | 2024-02-09 | 国网山东省电力公司济宁供电公司 | Traveling wave device configuration method and system based on topological structure layering |
| CN113469556B (en) * | 2021-07-19 | 2024-03-29 | 广东电网有限责任公司 | Method and device for generating work ticket, electronic equipment and storage medium |
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| KR101354627B1 (en) * | 2012-09-26 | 2014-01-23 | 한국전력공사 | Engineering topology generating method of the digital substation and the apparatus thereof |
| CN103150425B (en) * | 2013-02-06 | 2015-12-23 | 上海交通大学 | Based on the power distribution network line chart automatic generation method of topological hierarchy |
| KR101397381B1 (en) * | 2013-09-10 | 2014-05-27 | 명지대학교 산학협력단 | Method for integrating meta-modeling |
| CN104200393B (en) * | 2014-08-18 | 2018-04-03 | 广东电网公司电力科学研究院 | Simplify version single line drawing generating method and system |
| CN104765933B (en) * | 2015-04-23 | 2017-09-05 | 国家电网公司 | The implementation method that a kind of power distribution station wiring diagram is intelligently layered |
| CN105046363B (en) * | 2015-07-24 | 2018-11-02 | 国网技术学院 | A kind of region distribution system single-line diagram layout and optimization method |
| CN105335584B (en) * | 2015-12-02 | 2018-09-28 | 国网山东省电力公司经济技术研究院 | Distribution network systems line chart generates optimization device and method |
| CN108108567B (en) * | 2018-01-03 | 2021-07-13 | 云南电力试验研究院(集团)有限公司 | Power distribution network single line diagram automatic drawing method based on fault indicator logic position |
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