基于BP神經(jīng)網(wǎng)絡(luò)-馬爾科夫鏈的光伏發(fā)電預(yù)測
吳雪蓮,都洪基
(南京理工大學(xué),江蘇 南京 210094)
摘 要:為了減少發(fā)電量隨機(jī)性對電力系統(tǒng)的影響,需要對發(fā)電功率預(yù)測進(jìn)行研究。通過分析影響光伏發(fā)電功率的因素,基于BP神經(jīng)網(wǎng)絡(luò)理論,在Matlab軟件中建立預(yù)測模型,實現(xiàn)了對輸出功率的短期預(yù)測,并給出了基于馬爾科夫鏈的改進(jìn)預(yù)測精度的方法。
關(guān)鍵詞:光伏發(fā)電;預(yù)測模型;神經(jīng)網(wǎng)絡(luò);馬爾科夫鏈
中圖分類號:TP183 文獻(xiàn)標(biāo)識碼:A 文章編號:1007-3175(2014)03-0022-06
Photovoltaic Power Generation Forecast Based on BPNeural Network and Markov Chain
WU Xue-lian, DU Hong-ji
(Nanjing University of Science and Technology, Nanjing 20094, China)
Abstract: In order to reduce impact of randomness generation capacity on power system, there is a need to study generation power forecast. Via analysis of factors of impact on photovoltaic generation power, this paper established the forecast model in Matlab based on BP neural network theory, realizing the short term forecast of output power and giving the method of improved forecast accuracy based on Markov chain.
Key words: photovoltaic power generation; prediction model; neural network; Markov chain
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