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scada-pmu data fusion method for power system

A power system and data fusion technology, applied in data processing applications, information technology support systems, instruments, etc., can solve the problems of fast data fusion, time matching and accurate prediction, etc., to achieve high reliability and accuracy Good, precise, simple and convenient effect

Active Publication Date: 2022-06-03
STATE GRID HUNAN ELECTRIC POWER +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the current main monitoring data fusion methods have deficiencies in fast data fusion, time matching, accurate prediction, and filling.

Method used

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  • scada-pmu data fusion method for power system
  • scada-pmu data fusion method for power system
  • scada-pmu data fusion method for power system

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Embodiment Construction

[0062] like figure 1 Shown is a schematic flow chart of the method of the present invention: this SCADA-PMU data fusion method for a power system provided by the present invention includes the following steps:

[0063] S1. Collect the time series operation data of a node in the power system in the SCADA system and the PMU system; specifically, collect the SCADA system voltage amplitude data Y of a specific node in the power system within a certain period of time scada With PMU measuring device voltage amplitude data Y pmu ; The voltage amplitude data includes generator output voltage amplitude, transformer high and low winding voltage amplitude, voltage amplitude at both ends of the isolation switch, bus voltage amplitude and transmission and distribution voltage amplitude;

[0064] S2. Use the Newton interpolation method to interpolate and fill the acquired time series data of the SCADA system, so as to obtain the time series data of the same sampling frequency as the PMU sy...

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Abstract

The invention discloses a SCADA-PMU data fusion method used in a power system, which includes collecting time-series operation data of nodes in SCADA and PMU; interpolating and filling the time-series data of the SCADA system; eliminating noise point data of the time-series data of the PMU system; Smooth the data; align the sampling time points and calculate the best alignment position; calculate the final fusion value and complete the fusion of SCADA‑PMU data. The invention can accurately reflect the running state of each node of the electric power system in real time, and can accurately perform data fusion calculation, and has high reliability, good accuracy, simplicity and convenience.

Description

technical field [0001] The invention belongs to the field of electrical automation, and in particular relates to a SCADA-PMU data fusion method for a power system. Background technique [0002] With the development of economy and technology and the improvement of people's living standards, electric energy has become an indispensable secondary energy in people's production and life, bringing endless convenience to people's production and life. Therefore, the stable and reliable operation of the power system has become one of the most important tasks of the power system. [0003] In the current power system, the power system mainly adopts SCADA, PMU and other intelligent monitoring and data acquisition technologies to achieve the overall goals of intelligent power system monitoring, reliable energy supply, and stable operation. In today's power system, SCADA system is widely used, and the application technology of SCADA system is relatively mature, but there are technical sho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q50/06
CPCG06Q50/06Y04S10/40
Inventor 文明李文英谭玉东姜飞戴逢哲廖菁
Owner STATE GRID HUNAN ELECTRIC POWER