Electricity price probability prediction method and system, computer equipment and storage medium

Abstract

The invention provides an electricity price probability prediction method and system, computer equipment and a storage medium, and the method comprises the steps: employing a prediction model for prediction according to electricity price data in a training period, and obtaining first electricity price prediction data; according to the first electricity price prediction data, performing fitting byadopting a distribution model to obtain error characteristics of the first electricity price prediction data; performing clustering analysis on the error features of the first electricity price prediction data by adopting a clustering algorithm to obtain center features of the first electricity price prediction data; according to the electricity price data of the target time period, adopting a prediction model to predict and obtain second electricity price prediction data; and correcting the second electricity price prediction data according to the center features of the first electricity price prediction data to obtain electricity price probability prediction data of the target time period. According to the embodiment of the invention, the scientific and accurate electricity price prediction and the analysis precision of the error probability are ensured, the feasibility of the prediction result for risk analysis is also considered, and the method and system are of great significanceto pricing decision and risk assessment of power generators.

Description

technical field [0001] The invention relates to the field of power grid electricity price prediction, in particular to a method, system, computer equipment and storage medium for electricity price probability prediction based on error clustering. Background technique [0002] At present, the first batch of eight power spot market construction pilot projects determined by the National Development and Reform Commission and the National Energy Administration have all entered the trial operation stage, and my country's power market construction has achieved another important breakthrough. With the gradual deepening of market-oriented competition in the power industry, the settlement of the electricity wholesale market based on the nodal electricity price theory will change with market conditions, and the volatility of electricity prices will become increasingly obvious. How to make scientific and accurate electricity price forecasts and give It is very important for market playe...

AI Technical Summary

Problems solved by technology

[0003] The existing domestic and foreign electricity price prediction research results mainly focus on the prediction of price certainty, and rarely involve its uncertainty or risk research. The main reasons are as follows: On the one hand, it is difficult to model periodic social activities, and it is easy to introduce electricity price Prediction error, and the overall consideration of error does not reflect the characteristics of electricity price errors in different periods; on the other hand, the predicted electricity price data will be applied to large-scale optimization problems such as risk assessment, and considering too many risk scenarios will introduce a lot of risk Analysis workload

In practical applications, if the electricity price forecasting method provided can only guarantee the relative accuracy of electricity price forecasting, and only conduct relatively simple error analysis, but cannot take into account the analysis accuracy of error probability and the feasibility of forecasting results for risk analysis, the other Difficult to be directly used in pricing decisions and risk assessments for generators

Images