CN110932275A - Transformer substation model construction method based on BPA element model - Google Patents
Transformer substation model construction method based on BPA element model Download PDFInfo
- Publication number
- CN110932275A CN110932275A CN201911313990.3A CN201911313990A CN110932275A CN 110932275 A CN110932275 A CN 110932275A CN 201911313990 A CN201911313990 A CN 201911313990A CN 110932275 A CN110932275 A CN 110932275A
- Authority
- CN
- China
- Prior art keywords
- transformer
- model
- establishing
- substation
- transformer substation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
Abstract
A transformer substation model construction method based on a BPA element model comprises the following steps: constructing a voltage grade index, and establishing an association relation between equipment and a voltage grade; judging whether a bus model is generated or not according to the number of the devices connected with the connection points; establishing a transformer substation model according to the connection points of the transformer elements or the series compensation connection points; and establishing an incidence relation between the line and the substation. According to the invention, the transformer substation module with clear layers is constructed according to the association relationship between the voltage levels and the equipment, the association relationship between the line and the transformer substation, and the relationship between the connecting point and the equipment, so that the problems that the layers are not clear, the equipment is inconvenient to position and search on the transformer substation graph and the like when the transformer substation is constructed by adopting a BPA element model at present are solved, and the graph-model association is facilitated.
Description
Technical Field
The invention relates to the technical field of power system automation, in particular to a transformer substation model construction method based on a BPA element model.
Background
BPA is an electromechanical transient simulation tool, and a model of the BPA is stored in files with extension names of dat and swi, primary equipment information and area information such as transformers, lines, loads, generators, capacitors/reactances and the like are contained in the files, the primary equipment is connected with each other through ports to form topological connection points expressed by B card names, and the BPA model is a flat model and lacks layering.
The model for BPA is a flattened model, lacking stratification. When a tidal current diagram is drawn, a transformer substation primitive is created in a mode of manually collecting nodes by BPA, the bottom layer is not supported by a transformer substation model, and the method is very inconvenient in the aspects of model management, graph generation, transformer substation filtering and screening, layered display, equipment positioning, searching and the like on the transformer substation graph.
Disclosure of Invention
The invention aims to provide a transformer substation model construction method based on a BPA element model, which is used for solving the problems of lack of hierarchy of graphs and inconvenience in positioning and searching when a transformer substation is constructed by using the BPA model.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a transformer substation model construction method based on a BPA element model comprises the following steps:
constructing a voltage grade index, and establishing an association relation between equipment and a voltage grade;
judging whether a bus model is generated or not according to the number of the devices connected with the connection points;
establishing a transformer substation model according to the connection points of the transformer elements or the series compensation connection points;
and establishing an incidence relation between the line and the substation.
In a first possible implementation manner, constructing a voltage class index, and establishing an association relationship between a device and a voltage class specifically includes the following method:
establishing an index of reference voltage according to the reference voltage of all the devices;
and establishing the association relation between all the devices and the voltage levels.
In a second possible implementation manner, the determining whether to generate the bus model according to the number of the devices connected to the connection point specifically includes the following steps:
if the number of the devices connected with the connection points is more than 2, establishing a bus model; otherwise, a bus model does not need to be established, and a wiring mode of the generator-transformer group and the line-transformer group is adopted.
In a third possible implementation, the building of the substation model from the connection points of the transformer elements specifically comprises the following method:
taking a transformer and a bus connected with each side of the transformer as equipment in a transformer substation;
searching other devices connected to the bus to construct a transformer substation model;
the method for establishing the transformer substation model according to the series compensation connection points specifically comprises the following steps:
the series compensation is used as a two-winding transformer, and the two-winding transformer and a bus connected with each side of the two-winding transformer are used as equipment in a transformer substation;
and searching other devices connected on the bus to construct a transformer substation model.
In a fourth possible implementation, when building a substation model from the connection points of the transformer elements, if two transformers have topological connections, the substations to which the two transformers belong are merged.
In a fifth possible implementation manner, the establishing of the association relationship between the line and the substation specifically includes the following method:
establishing association between the line and a station where the starting port connecting bus is located;
merging the transformer substations in which the series compensation is positioned with the opposite side transformer substations of the lines connected with the transformer substations;
and constructing the voltage grade information of the transformer substation according to the voltage grade information of all the devices in the transformer substation.
According to the technology, the transformer substation module with clear layers is constructed according to the association relationship between the voltage levels and the equipment, the association relationship between the lines and the transformer substation, and the relationship between the connecting points and the equipment, so that the problems that the layers are not clear, the equipment is inconvenient to position and search on the transformer substation graph and the like when the transformer substation is constructed by adopting a BPA element model at present are solved, and the graph-model association is facilitated.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic flow chart of a substation model construction method based on a BPA element model.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all 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.
As shown in fig. 1, a substation model construction method based on a BPA component model includes the following steps:
s1, constructing a voltage grade index, and establishing an association relation between equipment and a voltage grade;
s2, judging whether a bus model is generated or not according to the number of the devices connected with the connection points;
s3, establishing a transformer substation model according to the connection points of the transformer elements or the series compensation connection points;
and S4, establishing an association relationship between the line and the substation.
The step of constructing a voltage level index in the step S1, and the step of establishing an association relationship between the device and the voltage level specifically includes the following steps: establishing an index of reference voltage according to the reference voltage of all the devices; and establishing the association relation between all the devices and the voltage levels. The method comprises the steps that primary equipment in BPA has a reference voltage value, and an index of the reference voltage is established according to the reference voltages of all the equipment, wherein a transformer is special equipment, two circles of transformers are provided with a branch circuit, and the voltage grades on the two sides of the branch circuit are different; the three-coil transformer is provided with three branches, the voltage grades at two sides of the three branches are different, and the highest reference voltage is taken as the voltage grade of the transformer; and secondly, establishing an incidence relation between all the equipment and the voltage grades so as to establish voltage grade information in the transformer substation later.
Judging whether to generate the bus model according to the number of the devices connected with the connection point in the step S2 specifically includes the following steps:
if the number of the devices connected with the connection points is more than 2, establishing a bus model; otherwise, a bus model does not need to be established, and a wiring mode of the generator-transformer group and the line-transformer group is adopted.
The step of establishing the substation model according to the connection points of the transformer elements in the step S3 specifically includes the following steps:
taking a transformer and a bus connected with each side of the transformer as equipment in a transformer substation;
searching other devices connected to the bus to construct a transformer substation model;
the method for establishing the transformer substation model according to the series compensation connection points specifically comprises the following steps:
the series compensation is used as a two-winding transformer, and the two-winding transformer and a bus connected with each side of the two-winding transformer are used as equipment in a transformer substation;
and searching other devices connected on the bus to construct a transformer substation model.
When a substation model is established according to the connection points of the transformer elements, if two transformers are in topological connection, the substations to which the two transformers belong are merged.
The establishing of the association relationship between the line and the substation in S4 specifically includes the following steps:
establishing association between the line and a station where the starting port connecting bus is located;
merging the transformer substations in which the series compensation is positioned with the opposite side transformer substations of the lines connected with the transformer substations;
and constructing the voltage grade information of the transformer substation according to the voltage grade information of all the devices in the transformer substation.
The line is primary equipment connected between the substations, has two ports, and is associated with a station where the starting port connecting bus is located; merging the transformer substations in which the series compensation is positioned with the opposite side transformer substations of the lines connected with the transformer substations; and constructing voltage system information of the transformer substation according to the voltage level information of all the devices in the transformer substation. Therefore, hierarchical models of regions, voltage levels, substations and in-station equipment are built, and model support is provided for drawing tidal current diagrams among the substations, and in-station diagrams, filtering and hierarchical display of the substations.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A transformer substation model construction method based on a BPA element model is characterized by comprising the following steps:
constructing a voltage grade index, and establishing an association relation between equipment and a voltage grade;
judging whether a bus model is generated or not according to the number of the devices connected with the connection points;
establishing a transformer substation model according to the connection points of the transformer elements or the series compensation connection points;
and establishing an incidence relation between the line and the substation.
2. The method of claim 1, wherein constructing the voltage class index and establishing the association between the device and the voltage class specifically comprises the following steps:
establishing an index of reference voltage according to the reference voltage of all the devices;
and establishing the association relation between all the devices and the voltage levels.
3. The method of claim 1, wherein determining whether to generate the bus bar model based on the number of devices connected at the connection point comprises:
if the number of the devices connected with the connection points is more than 2, establishing a bus model; otherwise, a bus model does not need to be established, and a wiring mode of the generator-transformer group and the line-transformer group is adopted.
4. Method according to claim 1, wherein the step of establishing a substation model from the connection points of the transformer elements comprises the steps of:
taking a transformer and a bus connected with each side of the transformer as equipment in a transformer substation;
searching other devices connected to the bus to construct a transformer substation model;
the method for establishing the transformer substation model according to the series compensation connection points specifically comprises the following steps:
the series compensation is used as a two-winding transformer, and the two-winding transformer and a bus connected with each side of the two-winding transformer are used as equipment in a transformer substation;
and searching other devices connected on the bus to construct a transformer substation model.
5. Method according to claim 4, characterized in that in building a substation model from the connection points of the transformer elements, the substations to which two transformers belong are merged if the two transformers are topologically connected.
6. The method of claim 1, wherein establishing the association between the line and the substation specifically comprises:
establishing association between the line and a station where the starting port connecting bus is located;
merging the transformer substations in which the series compensation is positioned with the opposite side transformer substations of the lines connected with the transformer substations;
and constructing the voltage grade information of the transformer substation according to the voltage grade information of all the devices in the transformer substation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911313990.3A CN110932275B (en) | 2019-12-19 | 2019-12-19 | Transformer substation model construction method based on BPA element model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911313990.3A CN110932275B (en) | 2019-12-19 | 2019-12-19 | Transformer substation model construction method based on BPA element model |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110932275A true CN110932275A (en) | 2020-03-27 |
| CN110932275B CN110932275B (en) | 2020-12-18 |
Family
ID=69863176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911313990.3A Active CN110932275B (en) | 2019-12-19 | 2019-12-19 | Transformer substation model construction method based on BPA element model |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110932275B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103236023A (en) * | 2013-03-25 | 2013-08-07 | 国家电网公司 | Method for acquiring alternating-current and direct-current transmission application range |
| CN103887792A (en) * | 2014-03-21 | 2014-06-25 | 北京四方继保自动化股份有限公司 | Modeling method of low-voltage distribution network with distributed power supply |
| CN103972882A (en) * | 2014-04-08 | 2014-08-06 | 广州供电局有限公司 | Transmission and distribution power grid unified modeling method and system |
| CN105117532A (en) * | 2015-08-06 | 2015-12-02 | 中国电力科学研究院 | Modeling method for intelligent substation secondary equipment interval information model |
| CN105335903A (en) * | 2015-11-30 | 2016-02-17 | 广东电网有限责任公司电力调度控制中心 | Intelligent substation modeling method |
| CN106875086A (en) * | 2016-12-30 | 2017-06-20 | 中国电力科学研究院 | A kind of electric network data modeling method and its system based on graphical interactive operation |
| US20190115752A1 (en) * | 2018-12-12 | 2019-04-18 | Intel Corporation | Interface circuitry with multiple direct current power contacts |
| CN110504754A (en) * | 2019-08-28 | 2019-11-26 | 国网天津市电力公司 | One kind automatically generating three-dimensional grid monitoring approach layered based on geography information |
-
2019
- 2019-12-19 CN CN201911313990.3A patent/CN110932275B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103236023A (en) * | 2013-03-25 | 2013-08-07 | 国家电网公司 | Method for acquiring alternating-current and direct-current transmission application range |
| CN103887792A (en) * | 2014-03-21 | 2014-06-25 | 北京四方继保自动化股份有限公司 | Modeling method of low-voltage distribution network with distributed power supply |
| CN103972882A (en) * | 2014-04-08 | 2014-08-06 | 广州供电局有限公司 | Transmission and distribution power grid unified modeling method and system |
| CN105117532A (en) * | 2015-08-06 | 2015-12-02 | 中国电力科学研究院 | Modeling method for intelligent substation secondary equipment interval information model |
| CN105335903A (en) * | 2015-11-30 | 2016-02-17 | 广东电网有限责任公司电力调度控制中心 | Intelligent substation modeling method |
| CN106875086A (en) * | 2016-12-30 | 2017-06-20 | 中国电力科学研究院 | A kind of electric network data modeling method and its system based on graphical interactive operation |
| US20190115752A1 (en) * | 2018-12-12 | 2019-04-18 | Intel Corporation | Interface circuitry with multiple direct current power contacts |
| CN110504754A (en) * | 2019-08-28 | 2019-11-26 | 国网天津市电力公司 | One kind automatically generating three-dimensional grid monitoring approach layered based on geography information |
Non-Patent Citations (2)
| Title |
|---|
| 周步祥: "基于网络图形的配电网拓扑分析方法及应用", 《电力系统自动化》 * |
| 章坚民: "变电站单线图模数图一致性设计与自动成图", 《电力系统自动化》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110932275B (en) | 2020-12-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Pierri et al. | Challenges and opportunities for a European HVDC grid | |
| CN102567603B (en) | Method for automatically generating BPA calculation file based on actual measurement topology and measured data | |
| CN107565562A (en) | Power system topological hierarchy recognition methods based on isolated island search technique | |
| Nasiruzzaman et al. | Transient stability assessment of smart power system using complex networks framework | |
| CN102420432A (en) | Practical layering and zoning reactive power optimization method on basis of power grid real time data | |
| CN110676842B (en) | Power distribution network reconstruction and modeling solving method and device for minimally removing fault area | |
| CN103077480A (en) | Safety checking method for power system | |
| CN105449676A (en) | Regional node network generating method and system of power distribution network | |
| CN104167756A (en) | Power flow determination method of alternating current and direct current system containing multi-terminal high voltage direct current transmission | |
| CN102375828A (en) | Physical storage and optimization method of power grid topology in relational database | |
| Tang et al. | Distribution system modeling using CYMDIST for study of high penetration of distributed solar photovoltaics | |
| CN111027746A (en) | Intelligent distribution network system ring network diagram automatic generation method and device | |
| CN108199367B (en) | Power supply planning method based on medium-voltage distribution network unit grid | |
| CN104573868B (en) | A kind of power distribution network repairing Meshing Method and equipment | |
| CN109038579A (en) | A kind of substation model computer method for automatically split-jointing | |
| CN111444664A (en) | Power distribution network closed loop current calculation method and system containing multi-branch line | |
| CN110932275B (en) | Transformer substation model construction method based on BPA element model | |
| CN105243248A (en) | Method and system for producing substation main wiring model used for PSD-BPA simulation | |
| CN102880988B (en) | Transformer station model introduction method and device based on topology comparison | |
| CN110197302B (en) | Power distribution network planning method considering wiring mode topology constraints | |
| CN102722599B (en) | Automatic modeling method of direct current transmission project network topology | |
| CN116845966A (en) | New energy aggregation calculation analysis method and system based on topology power supply path generation | |
| CN108565858B (en) | Reliability evaluation method for hybrid alternating current-direct current power distribution network containing flexible transformer substation | |
| Jat et al. | Unbalanced opf modelling for mixed monopolar and bipolar hvdc grid configurations | |
| CN103178517B (en) | Multilevel topological analysis method for power system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |