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A new ARMAX model based on evolutionary algorithm and particle swarm optimization for short-term load forecasting

Electric Power Systems ResearchPublished 21 April 2008
Bo Wang, Nengling Tai, Zhai Hai-qing, Jian Ye, Jiadong Zhu, Qi Liangbo
Citations79
SJR quartileQ1
SJR score1.14
SNIP1.37

TL;DR

The new ARMAX model for short-term load forecasting takes advantage of evolutionary strategy to speed up the convergence of particle swarm optimization (PSO), and applies the crossover operation of genetic algorithm to enhance the global search ability.

Abstract

In this paper, a new ARMAX model based on evolutionary algorithm and particle swarm optimization for short-term load forecasting is proposed. Auto-regressive (AR) and moving average (MA) with exogenous variables (ARMAX) has been widely applied in the load forecasting area. Because of the nonlinear characteristics of the power system loads, the forecasting function has many local optimal points. The traditional method based on gradient searching may be trapped in local optimal points and lead to high error. While, the hybrid method based on evolutionary algorithm and particle swarm optimization can solve this problem more efficiently than the traditional ways. It takes advantage of evolutionary strategy to speed up the convergence of particle swarm optimization (PSO), and applies the crossover operation of genetic algorithm to enhance the global search ability. The new ARMAX model for short-term load forecasting has been tested based on the load data of Eastern China location market, and the results indicate that the proposed approach has achieved good accuracy.

Keywords

Decision SciencesEngineeringEnvironmental Science