Automatic power trend recognition method

An identification method and trend technology, applied in the direction of instruments, data processing applications, calculations, etc., can solve the problems of uncertain location of disturbance, misjudgment of hard threshold method, unreasonable and other problems, achieve high calculation speed, improve safety, and guarantee safety effect

Active Publication Date: 2017-04-26
STATE GRID CORP OF CHINA +3
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  • Abstract
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Problems solved by technology

[0007] (1) Due to the noise interference of PMU measurement information, sometimes the measured value exceeds the threshold only because of noise interference, so the hard threshold method sometimes misjudges
[0008] (2) Reasonable threshold setting is very difficult
The location of the disturbance is uncertain, so the existing threshold disturbance judgment method is unreasonable

Method used

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  • Automatic power trend recognition method
  • Automatic power trend recognition method
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Embodiment Construction

[0061] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0062] The following description and drawings illustrate specific embodiments of the invention sufficiently to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely represent possible variations. Individual components and functions are optional unless explicitly required, and the order of operations may vary. Portions and features of some embodiments may be included in or substituted for those of other embodiments. The scope of embodiments of the present invention includes the full scope of the claims, and all available equivalents of the claims. These embodiments of the present invention may be referred to herein, individually or collectively, by the term "invention", which is for convenience only and is not...

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Abstract

The invention relates to an automatic power trend recognition method. The method comprises the steps of receiving original data of active power by a server in real time; pre-processing the original data; recognizing an oscillation state of the active power; and recognizing an active power trend. With technical scheme provided by the invention, automatic recognition on the trend and the oscillation of the active power is achieved by employing a high-frequency data smoothing technology and combining experience of people during the long-term calculation process and a special calculation method so that the purposes of helping signal trend and oscillation recognition of a power system and guiding actual running are achieved.

Description

technical field [0001] The invention relates to an identification method of a power system, in particular to an automatic power trend identification method. Background technique [0002] During the operation of the power system, it is inevitable to be affected by the natural environment, man-made, communication or potential hidden dangers of internal components of the system. After a power system disturbance occurs, only by obtaining the system disturbance scene in a timely and accurate manner, and accurately identifying the type and location of the disturbance, can we implement reasonable and effective control measures to ensure the safe and stable operation of the power grid. The Wide Area Measurement System WAMS is a new generation of network-wide monitoring system based on the basic component of the synchrophasor measurement unit PMU. It can realize the synchronous real-time collection and long-distance real-time transmission of the whole network data, thus making the dy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q50/06
Inventor 张文朝王茂海王涛范新桥施秀萍王赛
Owner STATE GRID CORP OF CHINA
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