基于改进萤火虫算法优化支持向量机的光伏短期功率预测

C. Nsengimana, Xiu Jun Shen, X. Han, Ling-ling Li, Haiyu Wang
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引用次数: 0

摘要

随着当前能源消费需求的不断增加,突出的能源问题也大量增加,迫切需要我们寻找新的绿色能源。光伏发电因其清洁度高、静电特性好,是最可行的发电方式之一。本文提出了一种基于改进萤火虫算法的光电功率预测方法,优化支持向量机(SVM)进行短期预测。我们将回归支持向量机(SVR)与改进的萤火虫算法(MFFA)有效结合,利用萤火虫估计方法确定最佳适应度惩罚因子c和核函数g,使支持向量机能够更好地预测光伏发电功率。为了使萤火虫算法更快地优化支持向量机,我们改进了萤火虫算法的步长因子$a$,并引入了一个权重系数,与常规技术相比,该方法具有更好的预测结果,预测速度也优于传统的智能优化模型。让我们以澳大利亚沙漠知识太阳能中心(DKASC)的光伏基地的数据为例。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Short-term Photovoltaic Power Forecasting Based on Improved Firefly Algorithm to optimize support vector machine
With the current increasing demand in energy consumption, there is a huge increase of prominent energy problems that require us to imperatively seek for the new green energy sources. Photovoltaic power generation is one of the most feasible power generation methods due to its high cleanliness and static characteristics. This paper proposes a photoelectric power prediction method based on an improved firefly algorithm to optimize support vector machines (SVM) for short-term prediction. We effectively combine the regression support vector machine (SVR) with the modified firefly algorithm (MFFA) and use the firefly estimation method to determine the best fitness penalty factor c and kernel function g, so that the support vector machine can better predict the photovoltaic power. In order to make the firefly algorithm to optimize the support vector machine faster, we improved the firefly algorithm step factor $a$ and introduced a weight coefficient ϖ, Compared with conventional techniques, this method has better prediction results and prediction speed is also better than the traditional intelligent optimization models. Let's take the data from a photovoltaic base in the Desert Knowledge Australian Solar Energy Centre (DKASC) as an example.
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