Application of Chaos and Neural Network in Power Load Forecasting

Autor: Li Li, Liu Chong-xin
Jazyk: angličtina
Rok vydání: 2011
Předmět:
Zdroj: Discrete Dynamics in Nature and Society, Vol 2011 (2011)
Druh dokumentu: article
ISSN: 1026-0226
1607-887X
DOI: 10.1155/2011/597634
Popis: This paper employs chaos theory into power load forecasting. Lyapunov exponents on chaos theory are calculated to judge whether it is a chaotic system. Delay time and embedding dimension are calculated to reconstruct the phase space and determine the structure of artificial neural network (ANN). Improved back propagation (BP) algorithm based on genetic algorithm (GA) is used to train and forecast. Finally, this paper uses the load data of Shaanxi province power grid of China to complete the short-term load forecasting. The results show that the model in this paper is more effective than classical standard BP neural network model.
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