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Power load forecasting by wavelet least squares support vector machine with improved fruit fly optimization algorithm

Niu Dongxiao, Ma Tiannan () and Liu Bingyi
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Niu Dongxiao: North China Electric Power University
Ma Tiannan: North China Electric Power University
Liu Bingyi: North China Electric Power University

Journal of Combinatorial Optimization, 2017, vol. 33, issue 3, No 19, 1122-1143

Abstract: Abstract As is affected by many factors, mid-long term power load forecasting has become the nonlinear and multi-dimension complex problem, and its accuracy affects the decision and layout of power generation sector. In order to improve the accuracy and convergence ability of the single least square support vector machine (LSSVM), this paper proposes the improved fruit fly optimization algorithm applied to wavelet least square support vector machine (IFOA-w-LSSVM). Firstly, the Gaussian kernel function of LSSVM is replaced by the wavelet kernel function and wavelet least square support vector machine (w-LSSVM) is built. Secondly, the ordinary fruit fly optimization algorithm (FOA) is improved from three aspects: (1) dividing fruit fly group into two parts: (2) improving the taste detection function; (3) using Cauchy mutation process to make fruit fly individuals variant. Finally, w-LSSVM is optimized by IFOA for seeking the optimal parameters and achieving the forecasting accuracy. Additionally, the example verification results show that the proposed model outperforms other alternative methods and has a strong effectiveness and feasibility in mid-long term power load forecasting.

Keywords: Power load forecasting; Fruit fly optimization algorithm; Least square support vector machine; Wavelet kernel function (search for similar items in EconPapers)
Date: 2017
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Citations: View citations in EconPapers (3)

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DOI: 10.1007/s10878-016-0027-7

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