Method for predicting typical day load of power grid by double sides approximate process

Abstract

The invention relates to a method for predicting the typical day load of a power grid by a double sides approximate process. The method comprises the following solving processes: setting two scalars [Alpha] and [Beta] which are greater than zero; independently multiplying a reference load curve obtained according to historical load data by the [Alpha] and the [Beta] to obtain a load curve [Alpha] and a load curve [Beta], wherein the load curve [Alpha] and the load curve [Beta] have the same shape with the reference load curve; enabling a typical day load curve to be predicted to be clamped between the load curve [Alpha] and the load curve [Beta]; and adopting an iterative approximate process to reduce a difference value of the [Alpha] and the [Beta] to solve the typical day load curve to be predicted, wherein the typical day load curve to be predicted is most similar to the known reference load curve. By use of the method, the double sides approximate process is adopted to quantitatively analyze and predict load characteristics, and a feasible power grid load prediction method is provided.

Description

technical field [0001] The invention relates to a method for predicting a typical daily load of a power grid, in particular to a method for predicting a typical daily load of a power grid by using a two-way clamping method, and belongs to the field of power grid load management. Background technique [0002] Load characteristic forecasting is an important link in power system operation and management. Its forecasting accuracy directly affects economic and social benefits, and mastering the changing law and development trend of power load characteristics is the key to establishing a load forecasting model. In the past, under the planned economic system, load characteristic analysis was not paid enough attention. Today, our country is in the transition period of marketization of the power industry. If we want to maintain the stability of the power market operation, the first thing we need to do is to predict the power load characteristics. The most basic work of analyzing and...

AI Technical Summary

Problems solved by technology

[0004] The present invention discloses a new scheme for predicting the typical daily load of the power grid by using the two-way clamping method, adopts the two-way clamping method to quantitatively analyze and predict the load characteristics, and solves the problem of lack of effective quantitative analysis and forecasting methods in the prior art

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