CN108649558B - Method for obtaining user information of power grid element - Google Patents
Method for obtaining user information of power grid element Download PDFInfo
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- CN108649558B CN108649558B CN201810368149.3A CN201810368149A CN108649558B CN 108649558 B CN108649558 B CN 108649558B CN 201810368149 A CN201810368149 A CN 201810368149A CN 108649558 B CN108649558 B CN 108649558B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
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Abstract
A method for obtaining user information of a power grid element comprises the following specific steps: step 1, establishing data of all user information of a power grid company. And step 2, obtaining all user information of the terminal power grid element according to the affiliated relationship between the user information and the terminal power grid element. And 3, establishing power supply relations between other power grid elements and the terminal power grid element through a network topology analysis algorithm and corresponding to the user information. The method has the advantages that the evaluation efficiency of the influence and risk of the load side safe power supply link is improved, and the safe, high-quality, economic and marketized operation level of the power grid is further improved.
Description
Technical Field
The invention relates to the technical field of power systems, in particular to a method for obtaining user information of a power grid element.
Background
With the increasing demand of society on the reliability of power supply of power systems, the power grid operation focuses more on the safe power supply of a load side. At present, analysis and monitoring of each level of scheduling mechanisms on the system operation load side are gradually explored and improved, but the traditional technical support system lacks effective support for work support of the load side, which is mainly shown in that a load model is generally an equivalent comprehensive measurement point, and key information of power utilization links such as the number of users and the power supply state of important users is lacked. The scheduling mechanism lacks detailed information such as real-time user load quantity in the processes of mode research, analysis and the like, and often judges according to historical manual statistical information and experience, so that the accuracy of the load side safe power supply analysis in the power grid mode arrangement is influenced. In the real-time monitoring and controlling link, because the influence and risk of various operations on the load side safe power supply link cannot be judged rapidly and accurately, the operation decision of the scheduling personnel is obviously stressed and extra workload is caused, and the method is more prominent particularly under the emergency treatment condition.
Disclosure of Invention
The present invention is directed to overcome the above disadvantages of the prior art, and to provide a method for obtaining user information of each grid element in real time through grid topology calculation by integrating information related to a marketing service system and a scheduled EMS system. The method for obtaining the user information of the power grid elements can enable scheduling operators to quickly and accurately obtain the user load information of each power grid element.
The invention is realized by the following technical scheme:
a method for obtaining user information of a power grid element comprises the following specific steps:
step 1, establishing data of all user information of a power grid company.
And step 2, obtaining all user information of the terminal power grid element according to the affiliated relationship between the user information and the terminal power grid element.
And 3, establishing power supply relations between other power grid elements and the terminal power grid element through a network topology analysis algorithm and corresponding to the user information.
As an improvement of the above scheme, the step 3 establishes a power supply relationship between other grid elements and the terminal grid element through a network topology analysis algorithm, and the specific steps are as follows;
step 3.1 reads in the devices of the whole network and forms a list.
And 3.2, simplifying the physical model to form a calculation model, and numbering the nodes of each device.
And 3.3, initializing the variables of flag _ ibs _ vec, flag _ st _ vec and level _ st _ map.
And 3.4, setting the station state of the equipment in the variable level _ st _ map as unprocessed according to the flag _ ibs _ vec and the equipment ID in the flag _ st _ vec.
And 3.5, searching all equipment nodes of the opposite end from the alternating current segment table according to the flag of the flag _ st _ vec, and marking the equipment nodes as searched in the variables of the flag _ ibs _ vec and the flag _ st _ vec.
Step 3.6 checks whether all equipment nodes have been processed, and if there are still equipment nodes that have not been processed, step 3.4 is performed.
Step 3.7, circularly inquiring the slave terminal load equipment list, and adding the terminal load equipment into the final list if the mark of the equipment node in flag _ ibs _ vec is searched; and circularly finishing to obtain all terminal load equipment lists meeting the conditions.
And 3.8, finishing the calculation.
As an improvement of the scheme, the data of the user information comprises a user distribution transformation name, a distribution transformation capacity, a power utilization industry large class, a power utilization industry small class, a safe power supply level and the number of users.
As an improvement of the scheme, the user information is originated from the marketing system and can be automatically synchronized to the EMS system from the marketing system through program timing/triggering.
The invention has the following beneficial effects:
1) the acquisition means is convenient, complicated manual operation is not needed, and the working intensity of dispatching operators is reduced;
2) the invention can obtain the load information of the power supply users of each element in real time, and has faster quick disconnection and higher precision.
Drawings
Fig. 1 is a step diagram of the network topology analysis algorithm of embodiment 1.
Fig. 2 is a diagram of a relationship between a power supply element and a user in embodiment 2.
FIG. 3 is a network topology relation diagram of embodiment 2
Detailed Description
Example 1
A method for obtaining user information of a power grid element comprises the following specific steps:
step 1, establishing data of all user information of a power grid company, wherein the data comprises user distribution transformer names, distribution transformer capacity, power utilization industry major categories, power utilization industry minor categories, safe power supply levels and user numbers; the user information originates from the marketing system and can be automatically synchronized to the EMS system by program timing/triggering.
And step 2, obtaining all user information of the terminal power grid element according to the affiliated relationship between the user information and the terminal power grid element.
And 3, establishing power supply relations between other power grid elements and the terminal power grid element through a network topology analysis algorithm and corresponding to the user information.
The method comprises the following specific steps of establishing a power supply relation between other power grid elements and a terminal power grid element through a network topology analysis algorithm, as shown in fig. 1.
Step 3.1 reads in the devices of the whole network and forms a list.
And 3.2, simplifying the physical model to form a calculation model, and numbering the nodes of each device.
And 3.3, initializing the variables of flag _ ibs _ vec, flag _ st _ vec and level _ st _ map.
And 3.4, setting the station state of the equipment in the variable level _ st _ map as unprocessed according to the flag _ ibs _ vec and the equipment ID in the flag _ st _ vec.
And 3.5, searching all equipment nodes of the opposite end from the alternating current segment table according to the flag of the flag _ st _ vec, and marking the equipment nodes as searched in the variables of the flag _ ibs _ vec and the flag _ st _ vec.
Step 3.6 checks whether all equipment nodes have been processed, and if there are still equipment nodes that have not been processed, step 3.4 is performed.
Step 3.7, circularly inquiring the slave terminal load equipment list, and adding the terminal load equipment into the final list if the mark of the equipment node in flag _ ibs _ vec is searched; and circularly finishing to obtain all terminal load equipment lists meeting the conditions.
And 3.8, finishing the calculation.
Example 2
A method for obtaining user information of a power grid element integrates mass user information data of a marketing system into an EMS system and utilizes power grid topology calculation to quickly obtain the user information of the power grid element. The method provided by the invention is explained in detail by the specific implementation flow of the dispatching center of the power supply company in a certain area.
1) According to the existing user information in the marketing system, a corresponding user information definition table is correspondingly established in the EMS system, and the user information definition table comprises user information fields and power supply equipment element IDs to which the user information belongs; the user information suggestions at least comprise user distribution transformer names, distribution transformer capacities, electricity utilization industry categories, safety power supply grades, user numbers and the like.
2) Importing all user information from a marketing system, and correctly setting power supply equipment elements corresponding to the user information; typically, one "power unit element" supplies power to a plurality of users, as shown in fig. 2; in fig. 2, the "power supply device elements" corresponding to the distribution subscribers 1-6 are all "706 feeder". That is, the grid element "feeder 706" is a summary of the information that the customer information is "customers 1-6".
3) Obtaining a power supply element list of specific power grid elements (such as a transformer, a bus and the like) according to the connection relation of the elements by analyzing the network topology of an EMS system; as shown in fig. 3, for the equipment element "# 1 master" (or "110 kVI segment bus"), through network topology analysis, its power supply element list should include: 701 feed line, 702 feed line, 703 feed line, 705 feed line, and 706 feed line.
4) According to the step 2, traversing the user information definition table to obtain user information data of each terminal power supply element; after the summary, all the user information data of the equipment element "# 1 main transformer" ("110 kVI bus") can be obtained.
In the embodiment, data integration is performed on user load information data of the existing marketing system and an EMS power grid model, and user information of the power grid element is obtained in real time through network topology analysis and calculation. By the method, the timeliness and the accuracy of the power grid operation mode analysis, particularly in emergency treatment are improved, the evaluation efficiency of the influence and the risk of the load side safe power supply link is improved, and the safe, high-quality, economic and marketized operation level of the power grid is further improved.
The above detailed description is specific to possible embodiments of the present invention, and the embodiments are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the scope of the present invention are intended to be included within the scope of the present invention.
Claims (3)
1. A method for obtaining user information of a power grid element is characterized by comprising the following specific steps:
step 1, establishing data of all user information of a power grid company;
step 2, obtaining all user information of the terminal power grid element according to the affiliated relationship between the user information and the terminal power grid element;
and 3, establishing power supply relations between other power grid elements and the terminal power grid element through a network topology analysis algorithm and corresponding to the user information, wherein the specific steps are as follows:
step 3.1, reading in equipment of the whole network and forming a list;
step 3.2, simplifying the physical model to form a calculation model, and numbering nodes of each device;
step 3.3, initializing variables such as flag _ ibs _ vec, flag _ st _ vec and level _ st _ map;
step 3.4, setting the station state of the equipment in the variable level _ st _ map as unprocessed according to the flag _ ibs _ vec and the equipment ID in the flag _ st _ vec;
step 3.5, searching all equipment nodes of the opposite end from the alternating current segment table according to the flag of the flag _ st _ vec, and marking the equipment nodes as searched in variables of flag _ ibs _ vec and flag _ st _ vec;
step 3.6, checking whether all the equipment nodes are processed or not, and if the equipment nodes are still unprocessed, turning to step 3.4;
step 3.7, circularly inquiring the slave terminal load equipment list, and adding the terminal load equipment into the final list if the mark of the equipment node in flag _ ibs _ vec is searched; circularly finishing to obtain all terminal load equipment lists meeting the conditions;
and 3.8, finishing the calculation.
2. The method according to claim 1, wherein the data of the user information includes a user distribution name, a distribution capacity, a power utilization industry category, a power utilization industry subclass, a safe power supply level, and a number of users.
3. The method of claim 2, wherein the user information is derived from a marketing system, and can be automatically synchronized from the marketing system to the EMS system by program timing/triggering.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101777765A (en) * | 2010-01-27 | 2010-07-14 | 中国电力科学研究院 | On-line load simulation method of power system |
| CN103544652A (en) * | 2013-09-26 | 2014-01-29 | 广东电网公司中山供电局 | Power grid industry classification load automatic statistical method and system |
| CN105743071A (en) * | 2014-12-12 | 2016-07-06 | 国家电网公司 | Relay protection online safety margin evaluation system |
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- 2018-04-23 CN CN201810368149.3A patent/CN108649558B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101777765A (en) * | 2010-01-27 | 2010-07-14 | 中国电力科学研究院 | On-line load simulation method of power system |
| CN103544652A (en) * | 2013-09-26 | 2014-01-29 | 广东电网公司中山供电局 | Power grid industry classification load automatic statistical method and system |
| CN105743071A (en) * | 2014-12-12 | 2016-07-06 | 国家电网公司 | Relay protection online safety margin evaluation system |
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