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Real-time monitoring method and device for judging stability of direct-current power distribution system

A system stability and real-time monitoring technology, applied in the field of DC distribution network, can solve the problems of stable and unstable data of grid stability, unbalanced ratio of stable tags, insufficient tags, etc.

Active Publication Date: 2021-07-16
ZHEJIANG UNIV
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Problems solved by technology

However, if the method of data analysis is to be adopted, it is necessary to overcome the problem of insufficient stable / unstable tags in the current power grid stability data, and the unbalanced ratio of tags in which the number of stable tags far exceeds the number of unstable tags.

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  • Real-time monitoring method and device for judging stability of direct-current power distribution system

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Embodiment Construction

[0048] Exemplary embodiments of the present invention will now be described with reference to the drawings; however, the present invention may be embodied in many different forms and are not limited to the embodiments described herein, which are provided for the purpose of exhaustively and completely disclosing the present invention. invention and fully convey the scope of the invention to those skilled in the art. The terms used in the exemplary embodiments shown in the drawings do not limit the present invention. In the figures, the same units / elements are given the same reference numerals.

[0049] Unless otherwise specified, the terms (including scientific and technical terms) used herein have the commonly understood meanings to those skilled in the art. In addition, it can be understood that terms defined by commonly used dictionaries should be understood to have consistent meanings in the context of their related fields, and should not be understood as idealized or over...

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Abstract

The invention discloses a real-time monitoring method for judging the stability of a direct-current power distribution system. The method comprises the following steps: obtaining a sample set; constructing a training system based on a full-connection neural network, wherein the training system comprises a generator network model, a discriminator and a classifier network model; constructing a loss function of the training system; training a training system by using a loss function, and determining a parameter generator to form a high-confidence pseudo-tag direct-current voltage data model; and inputting real DC voltage information obtained by real-time observation into the discriminator and classifier network model to obtain a stability real-time discrimination result of the real DC voltage information. According to the method, enough stable / unstable label direct-current voltage data and a proper stable / unstable label proportion can be obtained, so that the stability of real observation data of a power grid system can be judged in real time. The invention discloses a real-time monitoring device for judging the stability of a direct-current power distribution system. The real-time judgment result of the stability of real direct-current voltage information is accurately and instantly obtained.

Description

technical field [0001] The invention belongs to the technical field of DC power distribution network, and in particular relates to a real-time monitoring method and device for judging the stability of a DC power distribution system. Background technique [0002] With the increasing use of new energy sources such as photovoltaics and wind energy, and the increasing number of DC loads such as automobiles and lighting, the loads of DC distribution networks are becoming more and more complex. The rapid rise of new energy sources also plays a pivotal role in the power grid. However, with the increase in the complexity of the grid structure, large-scale grid-connected new energy and a large number of rechargeable devices, the stability of the grid is becoming more and more problematic. It is becoming more and more obvious. The stability of the power grid is an important part of the safety of the power grid, and instability will have a great impact on economic development. [0003...

Claims

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Application Information

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IPC IPC(8): G06F30/27G06K9/62G06N3/04G06N3/08G06F113/04
CPCG06F30/27G06N3/08G06F2113/04G06N3/045G06F18/2132G06F18/241Y04S10/50
Inventor 张欣胡柯昕龙海鸿高祎韩马皓
Owner ZHEJIANG UNIV
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