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A method for improving the data accuracy of the whole power grid model based on the verification rule base

A technology of model data and the whole power grid, which is applied in the field of power system grid, can solve problems such as difficult to guarantee data accuracy, not too close connection, inconsistent data definition, etc., to achieve the effect of solving difficult to guarantee and improving accuracy

Active Publication Date: 2022-07-29
STATE GRID SHANDONG ELECTRIC POWER +1
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Problems solved by technology

However, due to the lack of resource sharing at this stage, the model of the adjacent grid can only be simplified and equivalent to a certain extent when performing the analysis and calculation of the local grid. This method has a certain accuracy range for the less closely connected subnet It can meet the actual engineering needs, but it is inaccurate for the closely connected interconnected large power system
Therefore, the fusion of heterogeneous system models based on model files is a feasible solution. However, considering that the accuracy of data in the heterogeneous systems of provinces and regions is difficult to guarantee, and the data definitions of each heterogeneous system are inconsistent, so for the integrated The full model file must be verified in detail, the problem should be fed back, and the model file should be integrated again after rectification

Method used

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  • A method for improving the data accuracy of the whole power grid model based on the verification rule base

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Embodiment 1

[0023] like figure 1 As shown, the method for improving the data accuracy of the whole power grid model based on the verification rule base according to the present invention first needs to map the definition table according to the established model and use the ETL (such as KETTLE) tool to obtain various locations from various surveys on this basis. Adjust the model files of heterogeneous systems, and integrate the data to form the model data of the whole network. Since the model data of the whole network needs to be provided to monitoring, analysis and other applications, it is necessary to ensure that the data is accurate and that abnormal data can be captured in time and fed back to local dispatchers for processing. Therefore, it is necessary to establish a configurable, flexible and comprehensive verification rule base to verify the acquired model data of the whole network, and to classify and count the abnormal data obtained and distribute it to each region to allow users...

Embodiment 2

[0040] The main contents of the present invention include: studying how to uniformly define the equipment models and attribute data of the heterogeneous systems, and using the model mapping definition table to convert the equipment models and attributes of the heterogeneous systems into a unified standard definition format to form a unified standard definition format. For data model files, the online distributed power grid model standard based on the IEC 61970 standard is a good choice. Of course, you can flexibly change the definition format according to your own needs. You only need to reconfigure the model mapping definition table to meet the requirements.

[0041]The establishment of the verification rule base after the research model is integrated is mainly divided into three parts: public data verification, business rule verification, and node topology relationship verification.

[0042] The following takes the factory station and current transformer as an example to intr...

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Abstract

The invention relates to a method for improving the accuracy of model data of an entire power grid based on a verification rule base, and belongs to the technical field of power grids of power systems. The present invention includes the following steps: Step 1: Establishment of a model mapping definition table for various heterogeneous systems: a flexibly configurable model definition mapping table, which converts the equipment models and attributes of each heterogeneous system into a unified standard definition format to form a Unified data model file; Step 2: Planning and establishment of the model verification rule base, and flexibly use part of the verification rules of the rule base according to requirements to conduct a comprehensive verification and analysis of the generated whole network model; Step 3: Circularly carry out full verification and analysis Net model acquisition and verification work. It solves the problem of low efficiency of relying on manual experience verification in the past; through multiple iterations, the accuracy of the model data of the whole network is greatly improved until the accuracy rate reaches an acceptable range, which solves the difficulty in guaranteeing the accuracy of the data in the heterogeneous system of large-scale power grid models. The problem.

Description

technical field [0001] The invention relates to a method for improving the accuracy of model data of an entire power grid based on a verification rule base, and belongs to the technical field of power grids of power systems. Background technique [0002] The grid model is the basis of power system software analysis; therefore, a correct and reliable grid model is the basis for automation and dispatch work, and must be given sufficient attention. At present, since the automatic EMS systems of provincial companies and various regions are constructed by multiple manufacturers, a system of "hierarchical management, hierarchical control, and distributed processing" has been formed. Consider how to efficiently integrate and obtain complete and accurate network-wide model data. At present, it seems that it is difficult to effectively integrate model data. [0003] The power system is an ever-changing whole, and the real-time analysis of each power grid needs to involve the influe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/25G06Q50/06
Inventor 何鹏李坤刘明峰王萍孟建彭碧君李昊夏静怡侯路
Owner STATE GRID SHANDONG ELECTRIC POWER