Method and system for determining stability analysis data sample of power system

A power system and data analysis technology, which is applied in the field of determining the stability analysis data samples of the power system, can solve the problems of high data dimension and large scale of the power grid, and achieves the effect of strong correlation and avoiding the reduction of learning and judgment efficiency.

Pending Publication Date: 2021-04-13
CHINA ELECTRIC POWER RES INST +1
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Problems solved by technology

[0006] The embodiments of the present disclosure provide a method and system for determining the stability analysis data samples of the power system, so as to at least solve the problem of how to quickly extract reasonable and effective information from massive data due to the large scale of my country's power grid and high data dimensions in the prior art. The grid fault sample data and the technical problem of classifying and processing different stability problems

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  • Method and system for determining stability analysis data sample of power system
  • Method and system for determining stability analysis data sample of power system
  • Method and system for determining stability analysis data sample of power system

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Embodiment Construction

[0014] 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.

[0015] 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 method and system for determining a stability analysis data sample of a power system. The method comprises the following steps: determining a plurality of key variables for characterizing system characteristics according to a plurality of operation modes of a power grid; determining a plurality of response curves corresponding to the plurality of key variables representing the system characteristics through simulation calculation under the plurality of operation modes and different AC/DC fault forms; classifying the plurality of response curves according to different stability requirements of the power system, and determining a characteristic variable curve corresponding to a specific stability requirement; and determining a sampling time window according to the power grid control demand, and determining a stability analysis data sample of the power system according to the characteristic variable curve corresponding to the specific stability demand and the sampling time window.

Description

technical field [0001] The present application relates to the technical field of power systems, in particular to a method and system for determining stability analysis data samples of power systems. Background technique [0002] Large-scale grid-connection of new energy and large-capacity long-distance UHV DC transmission are the two main characteristics and development trends of my country's power grid. Due to the random fluctuation of new energy sources and the large impact of UHV DC faults, the operating conditions of the power grid are variable, and the fault forms that cause grid instability are more diverse. The complexity and uncertainty are further enhanced, and it is becoming more and more difficult to effectively identify faults. , Control strategies are becoming more and more difficult to formulate, and the effectiveness of traditional control methods is further reduced. [0003] The learning and reasoning technology of artificial intelligence can make full use o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/27G06K9/62G06Q10/06G06Q50/06
CPCG06F30/27G06Q10/0639G06Q50/06G06F18/24
Inventor 吴萍黄东敏赵兵常昊蒋彦翃
Owner CHINA ELECTRIC POWER RES INST
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