Multi-parameter fused substation data integrity checking method

A data integrity, substation technology, applied in the direction of measuring electricity, measuring electrical variables, measuring devices, etc., can solve problems such as data retrieval, error detection and recovery methods, etc.
CN102798776AActive Publication Date: 2012-11-28CHINA ELECTRIC POWER RES INST +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHINA ELECTRIC POWER RES INST
Publication Date
2012-11-28

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Abstract

The invention provides a multi-parameter fused substation data integrity checking method, comprising the following corresponding checking steps according to a data incidence relation: checking data acquired from the same source by a weighted voting method; checking measurement data of the current flowing into a closed region by a current summation method; checking data having a constrained relationship by an equipotential searching method or a reasoning method based on the constrained relationship; checking different forms of the same data by a source-tracing computing method; checking the rationality of the sampled values and phasor values of an alternating-current electric capacity at two adjacent time points by a jumping detection method. The multi-parameter fused substation data integrity checking scheme provided by the invention performs integrity checking on the data in different forms from a plurality of dimensionalities of time and space, and systematically estimates and improves the quality of the basic data, thereby improving the reliability and usability of the substation data.
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Description

technical field

[0001] The invention belongs to the technical field of electric power system automation, and in particular relates to a multi-parameter fusion substation data integrity checking method. Background technique

[0002] At present, the degree of informatization of substations has been greatly improved. Data collection and interactive sharing are no longer the bottleneck of the development of substation automation technology, but data quality has gradually become the focus of engineering technology and operation and maintenance personnel.

[0003] In fact, master stations such as power dispatching have long used state estimation to check the state data of the power system. Due to channel limitations, the amount of substation data transmitted to the main station is limited, so the unknown or suspicious quantities can only be estimated through power flow calculations based on known quantities, that is, state estimation. Insufficient basic data and large amount of c...

Claims

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