Wide area damping control real-time data processing method

A technology of real-time data processing and wide-area damping, applied in the direction of program control, computer control, general control system, etc., can solve the problems of only restarting the device, incomplete monitoring, and inability to automatically adapt to changes, so as to facilitate call analysis and improve Practicality and the effect of improving reliability

Active Publication Date: 2014-11-05
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +1
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AI Technical Summary

Problems solved by technology

[0004] In the established PMU-based wide-area damping control system, only the configured PMU data can be received. When the PMU configuration data changes, it cannot automatically adapt to the change and can only restart the device.
The preprocessing of the data is not rigorous, which will cause the misoperation of the wide-area damping control device
The monitoring of the controlled devices of the wide-area damping control device is not comprehensive, which will cause the rejection of the wide-area damping control device

Method used

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  • Wide area damping control real-time data processing method

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Embodiment Construction

[0021] Such as figure 1 Shown is the specific implementation process of the invention. According to the manual attached figure 1 And in conjunction with specific embodiment technical scheme of the present invention is described in further detail:

[0022] 1. Each synchronized phasor measurement device PMU sends configuration 2 frames and data frames (whether the data frames include the power and phase angle of grid nodes, etc.) to the wide-area damping control device, wherein the configuration 2 frames are in the power It has a general meaning in the system. The transmission protocol of the real-time dynamic monitoring system of the North China Power Grid power system has been defined as follows: Configuration frame 2 (CFG-2): describes the name, quantity, conversion coefficient, etc. of the data uploaded by the sub-station according to the requirements of the master station. First, according to the configuration file of the wide-area damping control device, it is detected w...

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Abstract

The invention discloses a wide area damping control real-time data processing method, and belongs to the field of the power system stability control technology. The method includes the steps that preprocessing is carried out according to data uploaded by a PMU and an executive device; the preprocessed data are stored in a real-time database, and section alignment is conducted; latest real-time section data are taken out for input abnormal detection, selection judgment, synchronization judgment and output abnormal detection; control logic calculation is carried out on data meeting control start conditions, intermediate data generated in the calculation process are stored, a control command is issued to a wide area damping control executive device, and therefore wide area damping control can be conducted on an electric system. According to the method, a wide area damping control system can be more reliable, flexible and practical.

Description

technical field [0001] The invention belongs to the technical field of power system stability control, and in particular relates to a real-time data processing method for wide-area damping control. Background technique [0002] With the interconnection of interval power grids, the scale of the power grid continues to expand. When the electrical connection between regional power grids is weak, the low-frequency oscillation mode of the interval will be excited after the system fails or is disturbed, and is superimposed on the dynamic process of the entire system. To the whole network, it will cause the oscillation of the whole network and threaten the safety of the power grid. The weakly damped low-frequency oscillation will also limit the transmission power of the inter-section tie line. [0003] The traditional local stability control measures are mostly power system stabilizers PSS, which can suppress low-frequency oscillations in a specific operating mode. The effect is l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042
Inventor 涂亮邱富东门锟时伯年柳勇军韩亮杨诚张龙菲
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
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