Maximum daily load prediction system and method of electric system considering meteorological accumulative effect

Abstract

The invention discloses a maximum daily load prediction system and method of an electric system considering the meteorological accumulative effect. The meteorological and load data is read in a system by a data acquisition module; the load data is divided into two parts by a data screening and processing module: one part contains no accumulative effect and the other part is of significant accumulative effect and the key meteorological index influencing the network load is determined; a non-accumulative daily load basic prediction model is firstly established in the load prediction modeling module, on the basis, an accumulative daily load modified model is established so as to generate a comprehensive prediction model; finally in the load prediction module, the modeling module result and the meteorological and load database are linked to obtain a load predicted value, which is input into a software diagram interface to be supplied to a user. The maximum daily load prediction system and method can reflect the influences of meteorological conditions on the timeliness and accumulation of the network load, helps grid operating personnel accurately master the variation regulation of load, timely predict the maximum daily load change according to the weather conditions on the basis of weather forecasts, so as to improve the accuracy of short-term load prediction.

Description

technical field [0001] The invention relates to a short-term and medium-term load forecasting method and technology for an electric power system considering meteorological factors, and is a maximum daily load forecasting modeling optimization system and method thereof in consideration of the comprehensive influence of meteorological factors. Background technique [0002] Power System Maximum Daily Load Forecasting Short-term load forecasting is an important part of power grid dispatching, an important part of the short-term load forecasting field in power systems, and has an important impact on power system energy saving and emission reduction. Accurate load forecasting is of great significance for maintaining the safe and stable operation of the power system and ensuring the orderly progress of people's production activities and life. With the gradual improvement of residents' living conditions, air-conditioning and heating appear frequently in daily life and work, the grid...

AI Technical Summary

Problems solved by technology

The weather-sensitive load of the power grid continues to rise, and the impact of climate on load characteristics is increasing, and there are still complex cumulative and hysteresis effects

These factors make the load regularity of the grid very complicated, and bring many difficulties to load modeling, load management, and grid planning.

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