CN111541243A - Real-time simulation modeling method for testing regional safety and stability control system - Google Patents
Real-time simulation modeling method for testing regional safety and stability control system Download PDFInfo
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- CN111541243A CN111541243A CN202010344446.1A CN202010344446A CN111541243A CN 111541243 A CN111541243 A CN 111541243A CN 202010344446 A CN202010344446 A CN 202010344446A CN 111541243 A CN111541243 A CN 111541243A
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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
- H02J2203/10—Power transmission or distribution systems management focussing at grid-level, e.g. load flow analysis, node profile computation, meshed network optimisation, active network management or spinning reserve management
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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]
Abstract
The invention provides a real-time simulation modeling method for testing a regional safety and stability control system, which comprises the following steps: s1, partitioning the target power grid to obtain a plurality of sub-power grids; s2, respectively establishing a plurality of stable control real-time simulation sub-models by the sub-power grid; s3, debugging the stable control real-time simulation submodels respectively; s4, combining the plurality of stable control real-time simulation submodels into a stable control real-time simulation main model, and realizing the stable control simulation test of the target power grid through the stable control real-time simulation main model.
Description
Technical Field
The invention relates to the technical field of stability control simulation modeling, in particular to a real-time simulation modeling method for testing a regional safety and stability control system.
Background
The safety and stability control system is used as a second defense line for ensuring the safe and stable operation of the power grid, emergency control measures such as generator tripping and load shedding and the like, so that the power grid can continuously keep stable operation when serious faults with lower probability occur.
Disclosure of Invention
The invention aims to provide a real-time simulation modeling method for testing a regional safety and stability control system, so as to solve the problems in the background technology.
The invention is realized by the following technical scheme: a real-time simulation modeling method for testing a regional safety and stability control system comprises the following steps:
s1, partitioning the target power grid to obtain a plurality of sub-power grids;
s2, respectively establishing a plurality of stable control real-time simulation sub-models by the sub-power grid;
s3, debugging the stable control real-time simulation submodels respectively;
and S4, combining the plurality of stable control real-time simulation submodels into a stable control real-time simulation main model, and realizing the stable control simulation test of the target power grid through the stable control real-time simulation main model.
Preferably, partitioning the target grid comprises: and dividing the target power grid into a plurality of sub-power grids according to the geographic administrative region.
Preferably, partitioning the target grid comprises: and calculating the electrical distance between every two substations in the target power grid, and dividing the substations with the close electrical distance into the same sub-power grid.
Preferably, the distance of the electrical distance is judged by calculating the magnitude of the connection impedance between every two substations.
Preferably, the respectively debugging the stability control simulation submodels comprises: carrying out non-real-time simulation load flow calculation on the stable control real-time simulation submodel through BPA software;
and performing real-time simulation load flow calculation on the stability control real-time simulation sub-model through the RTDS, comparing the non-real-time simulation load flow with the real-time simulation load flow, and judging whether the stability control real-time simulation sub-model is correct or not.
Preferably, the plurality of stable control real-time simulation sub-models are combined in a manner of simulating a tie line, and finally the stable control real-time simulation main model is obtained.
Compared with the prior art, the invention has the following beneficial effects:
according to the real-time simulation modeling method for testing the regional safety and stability control system, due to the adoption of the parallel modeling and debugging and recombining method, the problem of low modeling speed of the regional safety and stability control system in real-time simulation of a power grid is solved, and the modeling speed can be effectively improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only preferred embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a flowchart of a real-time simulation modeling method for testing a regional safety and stability control system according to the present invention.
Detailed Description
In order to better understand the technical content of the invention, specific embodiments are provided below, and the invention is further described with reference to the accompanying drawings.
Referring to fig. 1, a real-time simulation modeling method for testing a regional safety and stability control system includes the following steps:
s1, partitioning the target power grid to obtain a plurality of sub-power grids;
the partition mode comprises the following steps: the power grid is partitioned according to geographical administrative planning or electrical distance of the target power grid, for example, the target power grid is partitioned into a plurality of sub-power grids by taking city and county administrative regions as partitioning bases, or the electrical distance between every two substations in the target power grid is calculated, and the substations with the short electrical distance are partitioned into the same sub-power grid.
It should be noted that the distance of the electrical distance is determined by calculating the magnitude of the connection impedance between every two substations, the two substations with the close geographical distance are not necessarily close to each other, and if a plurality of connection lines are close to each other between the two substations with the far geographical position, the substations with the close geographical distance can be divided into the same sub-grid in the above manner.
S2, establishing a plurality of stable control real-time simulation sub-models by the sub-grid respectively, wherein the specific process is that the stable control real-time simulation sub-models related to the sub-grid are established according to the structure nodes of the sub-grid through simulation software such as RTDS (real time digital system);
s3, debugging the stable control real-time simulation submodels respectively, wherein the specific debugging mode is as follows: firstly, carrying out non-real-time simulation load flow calculation on the stable control real-time simulation sub-model through BPA software;
secondly, performing real-time simulation load flow calculation on the stability control real-time simulation sub-model through an RTDS (real time digital simulator), comparing the non-real-time simulation load flow with the real-time simulation load flow, and judging whether the stability control real-time simulation sub-model is correct or not;
and S4, combining the plurality of stable control real-time simulation sub-models in a manner of connecting analog links to finally obtain a stable control real-time simulation main model, and realizing the stable control simulation test of the target power grid through the stable control real-time simulation main model.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (6)
1. A real-time simulation modeling method for testing a regional safety and stability control system is characterized by comprising the following steps:
s1, partitioning the target power grid to obtain a plurality of sub-power grids;
s2, respectively establishing a plurality of stable control real-time simulation sub-models by the sub-power grid;
s3, debugging the stable control real-time simulation submodels respectively;
and S4, combining the plurality of stable control real-time simulation submodels into a stable control real-time simulation main model, and realizing the stable control simulation test of the target power grid through the stable control real-time simulation main model.
2. The real-time simulation modeling method for regional safety and stability control system testing according to claim 1, wherein partitioning the target grid comprises: and dividing the target power grid into a plurality of sub-power grids according to the geographic administrative region.
3. The real-time simulation modeling method for regional safety and stability control system testing according to claim 2, wherein partitioning the target grid comprises: and calculating the electrical distance between every two substations in the target power grid, and dividing the substations with the close electrical distance into the same sub-power grid.
4. The real-time simulation modeling method for the regional safety and stability control system test is characterized in that the distance of the electrical distance is judged by calculating the magnitude of the connection impedance between every two substations.
5. The real-time simulation modeling method for regional safety and stability control system testing according to claim 4, wherein the respectively debugging the stability control simulation submodels comprises: carrying out non-real-time simulation load flow calculation on the stable control real-time simulation submodel through BPA software;
and performing real-time simulation load flow calculation on the stability control real-time simulation sub-model through the RTDS, comparing the non-real-time simulation load flow with the real-time simulation load flow, and judging whether the stability control real-time simulation sub-model is correct or not.
6. The real-time simulation modeling method for regional safety and stability control system testing according to claim 5, wherein a plurality of stability control real-time simulation sub-models are combined in a link simulation manner, and finally a stability control real-time simulation main model is obtained.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112394708A (en) * | 2020-10-30 | 2021-02-23 | 国网新疆电力有限公司电力科学研究院 | Intelligent Internet of things management virtual test method for power grid safety and stability control system |
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