Multi-region power load time sequence scene modeling method considering time-space correlation

A spatiotemporal correlation, power load technology, applied in computing, electrical components, circuit devices, etc., can solve the problems of difficult to model multiple power load regions, unable to consider the spatiotemporal correlation between multiple regions, etc., to achieve the preservation of correlation, high precision effect

Active Publication Date: 2020-07-10
XI AN JIAOTONG UNIV +1
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Problems solved by technology

[0004] The purpose of the present invention is to provide a multi-area power load time-series scene modeling method that takes time-space correlation into account, so as to solve the problem that the traditional single-area power load scene modeling method cannot consider the time-space correlation between multiple areas, and it is difficult to Problems with Accurate Modeling of Loaded Regions

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  • Multi-region power load time sequence scene modeling method considering time-space correlation
  • Multi-region power load time sequence scene modeling method considering time-space correlation
  • Multi-region power load time sequence scene modeling method considering time-space correlation

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[0061] In order to make the purpose, technical effects and technical solutions of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments It is a part of the embodiment of the present invention. Based on the disclosed embodiments of the present invention, other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall all fall within the protection scope of the present invention.

[0062] A multi-area power load time-series scene modeling method that takes time-space correlation into account in an embodiment of the present invention includes the following steps:

[0063] S1. Acquire m regional power load time series data P according to the preset time resolution mn (t), where t 1 ≤t≤t n , n is the numb...

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Abstract

The invention discloses a multi-region power load time sequence scene modeling method considering time-space correlation, and the method comprises the steps: firstly employing segmented cloud to approximately reduce the dimensions of a time sequence, measuring the similarity between segmented time sequences through the overlapping area of a cloud model, and clustering multi-dimensional data; secondly, based on the daily load characteristic index of each type of time series data, establishing a correlation copula model of a plurality of regions by constructing vine-copulas joint probability distribution; and finally, establishing a daily load sequence optimization model based on each type of reference load curve, and obtaining a multi-region power load time sequence scene with correlation.According to the method, the effectiveness and the practicability of the method are verified by comparing different scene generation methods and load characteristic index results.

Description

technical field [0001] The invention belongs to the technical field of new energy power distribution, and in particular relates to a multi-area power load time-series scene modeling method that takes time-space correlation into account. Background technique [0002] In recent years, the problem of new energy consumption has become increasingly prominent. Quantitative analysis of the new energy consumption capacity of the power grid in the future has important guiding significance for the power grid department to formulate new energy annual operation methods and rationally plan new energy installations in the power grid. Time-series production simulation technology is an important technical means to realize the quantitative evaluation of new energy consumption capacity. It can fully consider the operation constraints of various power sources, the random fluctuation characteristics of load and new energy output, and carry out production simulation of the power system year by ti...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/06H02J3/00G06K9/62
CPCG06Q10/067G06Q10/0639G06Q50/06H02J3/00G06F18/23
Inventor 司刚全曲凯蔡乾马天东耿天翔
Owner XI AN JIAOTONG UNIV
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