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Data processing device and method for transformer area electric energy quality monitoring data

A technology for power quality monitoring and data processing modules, applied in the field of data processing, can solve the problems of complex structure, high cost, and difficulty in data to fully meet measurement requirements, and achieve the effect of meeting special requirements and reducing hardware costs

Active Publication Date: 2020-08-25
STATE GRID INFORMATION & TELECOMM GRP
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Problems solved by technology

Existing on-line monitoring devices for power quality have the problems of high cost, complicated structure, and the processed data cannot fully meet the measurement requirements, so it is difficult to apply to distribution stations

Method used

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  • Data processing device and method for transformer area electric energy quality monitoring data
  • Data processing device and method for transformer area electric energy quality monitoring data
  • Data processing device and method for transformer area electric energy quality monitoring data

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Embodiment Construction

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0039] The terms "first" and "second" in the specification and claims of the present invention and the above drawings are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "comprising" and "having", and any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or apparatus comprising a series of steps or units is not defined by listed steps or u...

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Abstract

The invention discloses a data processing device and method for transformer area electric energy quality monitoring data. The method comprises the steps: obtaining original sampling data, carrying outthe caching of the original sampling data, and enabling the original sampling data to be obtained after the signal conditioning and calculation of a three-phase voltage signal and a three-phase current signal; calculating the original sampling data to obtain a frequency calculation result; according to the frequency calculation result, carrying out signal extraction on the original data stored inthe data cache region to obtain a complete cycle signal, and using the complete cycle signal for electric energy quality monitoring steady-state data calculation and electric energy quality monitoring transient event judgment. According to the device and method disclosed in the invention, original data processing and complete cycle signal extraction and application are carried out, and thereforecalculation of station area power quality monitoring steady-state data and determination of transient events are realized. The hardware cost can be reduced, district metering (measurement and control)and power quality monitoring service application are supported, and the special requirements of power quality monitoring on data quality are met.

Description

technical field [0001] The invention relates to the technical field of data processing, in particular to a data processing device and method for power quality monitoring data in station areas. Background technique [0002] With the massive addition of distributed power sources, micro-grids, electric vehicles, electric heating, and low-voltage inverters to the power grid, power quality problems in distribution stations have become more prominent, including: frequent voltage fluctuations caused by power fluctuations, and three-phase power caused by bidirectional flow of single-phase power. The aggravation of phase imbalance and broadband resonance problems caused by a large number of rectifier and inverter devices have seriously affected the quality of power supply services, making the current academic and industrial circles pay close attention to the power quality of distribution stations. [0003] The power quality monitoring business has specific requirements for data quali...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R19/25G01R19/02G01R23/02G01R23/165
CPCG01R19/25G01R19/02G01R23/02G01R23/165
Inventor 刘柱黄吕超王利民李温静方金国杜月张帅邓思阳陈楷铭
Owner STATE GRID INFORMATION & TELECOMM GRP
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