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Load forecasting method for high voltage distribution substation adapted to integrated transmission and distribution network planning

A technology of load forecasting and substation, which is applied in the field of load forecasting of high-voltage distribution network substations, and can solve the problems of difficult transmission and distribution network load forecasting and difficulty in reasonably dividing loads, etc.

Active Publication Date: 2019-02-22
STATE GRID ZHEJIANG ELECTRIC POWER +2
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  • Summary
  • Abstract
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  • Application Information

AI Technical Summary

Benefits of technology

This technology helps predict future loads on an electric power system by breaking down into different parts like generating energy from fossil fuel or producing it locally at certain locations within specific areas around them. It also allows for accurate prediction over time based on factors such as current weather conditions that affect how much electrical generation capacity needs to be used during peak hours when there are no more needed resources compared to other times.

Problems solved by technology

This patents discusses different ways that can be used during power usage predictions by analyzing data from various sources such as weather or traffic conditions over an entire area. However, current techniques have limitations with regards to how they work well when applied across large areas where there may be multiple loads being generated simultaneously at any given point within each spot on the map.

Method used

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  • Load forecasting method for high voltage distribution substation adapted to integrated transmission and distribution network planning
  • Load forecasting method for high voltage distribution substation adapted to integrated transmission and distribution network planning
  • Load forecasting method for high voltage distribution substation adapted to integrated transmission and distribution network planning

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Embodiment

[0086] This embodiment provides a high-voltage distribution network substation load forecasting method adapted to the integrated planning of the transmission and distribution network, which includes: combining the characteristics of the integrated planning of the transmission and distribution network, using the Elman neural network model and spatial load forecasting combined high-voltage distribution network The load forecasting method takes the supply area of ​​the high-voltage distribution network substation as the forecast unit, combines historical load and space forecasting to predict the medium and long-term load of the high-voltage distribution network, and introduces a load calculation model based on the grid development degree. The specific process of the above-mentioned high-voltage distribution network substation load forecasting method is detailed in Figure 4 .

[0087] Considering the integrated planning process, the substation supply area and the district and cou...

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Abstract

The invention discloses a load forecasting method of a high-voltage distribution network substation adapted to the integrated transmission and distribution network planning. At present, it is difficult for the distribution network forecasting method to adapt to the development of the whole city, and it is difficult to use a method to go through the transmission and distribution network load forecasting. The technical scheme of the invention comprises the following steps: combined with the characteristics of integrated planning of transmission and distribution network, high-voltage distributionnetwork load prediction method combining the Elman neural network model and spatial load forecasting method, the medium and long-term load forecasting of high voltage distribution network is carriedout from the historical load and spatial load forecasting, and the load calculation model based on grid development degree is introduced. The invention synthesizes the advantages of the long-term maximum load density data in the spatial planning, and dynamically introduces the measured data of the transformer substation over the years in the calculation sample to modify the grid development degree. After the grid development degree is predicted, the load of high-voltage distribution network is recalculated considering the change of power supply area division in the future.

Description

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Claims

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Application Information

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Owner STATE GRID ZHEJIANG ELECTRIC POWER
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