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Load prediction method based on intelligent algorithm

A load forecasting and intelligent algorithm technology, applied in the electric power field, can solve the problems of insufficient timeliness and accuracy of the load forecasting model, and achieve the effect of perfecting forecasting results, increasing influence, and improving timeliness

Pending Publication Date: 2021-11-26
ANHUI NANRUI JIYUAN POWER GRID TECH CO LTD +2
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Problems solved by technology

[0003] In order to solve the shortcomings of the above-mentioned existing technologies, the present invention proposes a load forecasting method based on an intelligent algorithm, in order to improve the timeliness and accuracy of the traditional load forecasting model, thereby improving the ability of power grid load forecasting , providing an important guarantee for the safe and economical operation of the power system and the realization of scientific management and scheduling of the power grid

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  • Load prediction method based on intelligent algorithm

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Embodiment Construction

[0041] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0042] In this example, if figure 1 As shown, a load forecasting method based on an intelligent algorithm includes the following steps:

[0043] S1: Collect load data of a single transformer in time series;

[0044] S2: if figure 2As shown, the noise estimation of the volumetric Kalman filter model is optimized by using the weighting method based on the fading memory index, and the optimized volumetric Kalman filter model is obtained, and part of the load data is used to train the optimized volumetric Kalman filter model , get the load forecasting model;

[0045] Among them, noise estimation optimization includes the following steps:

[0046] Step S2.1: Use formula (1) to obtain the weighting coefficient d of the noise covariance matrix generated at time k k :

[0047]

[0048] In formula (1), e represents a constant;

[0049] Step S2.2: Use ...

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Abstract

The invention discloses a load prediction method based on an intelligent algorithm, and the method comprises the steps: firstly building a volume Kalman filtering model based on noise estimation optimization of a fading memory exponential weighting method for the extracted load data for the extracted load data, and carrying out the prediction of a load value; obtaining a load prediction result and a prediction error sequence, carrying out outlier processing on prediction error data, and predicting the prediction error data by adopting a GM-BP model so as to correct a prediction result of the volume Kalman filtering model based on noise estimation optimization of a fading memory exponential weighting method, and obtaining a final load prediction result. The problem that a traditional load prediction model is insufficient in timeliness and accuracy is solved, the power grid load prediction capacity can be improved, and an important guarantee is provided for safe and economical operation of a power system and scientific management and dispatching of a power grid.

Description

technical field [0001] The invention belongs to the technical field of electric power, and specifically relates to a load forecasting method based on an intelligent algorithm. Background technique [0002] Power load forecasting is one of the important tasks of the power system. The accuracy of forecasting will have a great impact on economic dispatch, real-time control, operation planning and development planning. With the further opening of the electricity market, the more mature market mechanism, and the more comprehensive market opening, electricity load forecasting will play a greater role. Traditional load forecasting methods such as regression forecasting and time series methods can no longer meet the current needs in terms of real-time and accuracy, especially under the influence of multiple factors. Contents of the invention [0003] In order to solve the shortcomings of the above-mentioned existing technologies, the present invention proposes a load forecasting ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q50/06H02J3/00H03H17/02G06N3/08
CPCG06Q10/04G06Q50/06G06N3/084H02J3/003H03H17/0257Y02E40/70Y04S10/50
Inventor 黄文礼徐沛哲季坤朱太云张可郑浩陆年生王坤王刘芳李宇吴海峰王海超马俊杰胡东升
Owner ANHUI NANRUI JIYUAN POWER GRID TECH CO LTD
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