Steady-state data-based SCADA telemetry wrong data on-line detection system

A steady-state data and detection system technology, applied in the direction of error detection/correction, electrical digital data processing, electrical measurement, etc., can solve the problems of affecting accuracy, large random interference, and clock asynchrony, so as to improve precision and accuracy, Improve calculation accuracy and reduce the effect of random interference

Active Publication Date: 2017-07-25
STATE GRID TIANJIN ELECTRIC POWER +2
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  • Application Information

AI Technical Summary

Problems solved by technology

In reality, most of the equipment parameters come from actual measurement or theoretical calculation, and the error is relatively large; SCADA telemetry data is mixed with transient data, which causes a lot of random interference, and the clocks are seriously out of sync; Knife switches and transformer taps still need manu...

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  • Steady-state data-based SCADA telemetry wrong data on-line detection system
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  • Steady-state data-based SCADA telemetry wrong data on-line detection system

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Embodiment Construction

[0062] Embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings:

[0063] A SCADA telemetry error online detection system based on steady-state data, such as figure 1 As shown, it includes sequentially connected data processing module 1, topology data module 2, node balance checking module 3, line balance checking module 4, valuation calculation module 5 and online alarm module 6;

[0064] The data processing module 1 is used to receive the SCADA telemetry data released by the D5000 system front-end processor for steady-state processing, and eliminate bad telemetry data to generate steady-state data.

[0065] The data processing module 1 is composed of a data analysis module 11 , a preprocessing module 12 and a steady state processing module 13 connected in sequence.

[0066] (1) The data analysis module 11 receives the SCADA telemetry data E format file released by the D5000 system front-end computer, and analyz...

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Abstract

The present invention relates to a steady-state data-based SCADA telemetry wrong data on-line detection system. The system is technically characterized by comprising a data processing module, a topology data module, a node balance checking module, a line balance checking module, an evaluated value calculation module and an online alarm module. According to the technical scheme of the invention, an effective and feasible method is provided for the online accurate detection of telemetry wrong data. The system can be applied to a scheduling master station. The system serves as one part of a D5000 system and realizes the online and real-time detection function for telemetry data through the node balance and the line balance check based on steady-state telemetry data. Based on the system, the wrong data of telemetry data and a bad measuring point can be timely and accurately detected in the online manner, and then an alarm prompt is sent out. Therefore, reliable telemetry data are provided for the calculation of power grid tidal current, short circuit and stability. Meanwhile, the calculation accuracy for subsequent advanced applications is improved.

Description

technical field [0001] The invention belongs to the technical field of online detection of SCADA telemetry data in electric power systems, and relates to the online detection of SCADA telemetry data based on the principles of steady-state measurement data processing, node balance and line balance, especially an online detection of SCADA telemetry errors based on steady-state data system. Background technique [0002] SCADA telemetry data is the basic data of the power grid, which directly determines the reliability of power grid power flow, short circuit and stability calculations, and errors cannot be made. Once a mistake is made, it will inevitably affect the calculation accuracy of subsequent advanced applications. [0003] Due to the large number of measuring equipment and the long distance and complexity of the communication system in the power system, it is inevitable that there will be problems during the operation for many years, and it is difficult to find out in t...

Claims

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Application Information

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IPC IPC(8): G01R31/00G06F11/07
CPCG01R31/00G06F11/0736
Inventor 张志君王梓李华郄洪涛陈建波王立敏
Owner STATE GRID TIANJIN ELECTRIC POWER
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