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中国矿业大学电气与动力工程学院,江苏省徐州市 221116
景惠甜(1996—),女,硕士研究生,主要研究方向:风电功率预测算法。E-mail:754704445@qq.com
韩丽(1977—),女,通信作者,博士,教授,主要研究方向:电力系统运行调度、微电网控制和电气设备故障诊断。E-mail:dannyli717@163.com
高志宇(1996—),男,硕士研究生,主要研究方向:电力系统运行调度。E-mail:942934092@qq.com
收稿日期:2020-02-27,
修回日期:2020-06-17,
网络出版日期:2020-12-28,
纸质出版日期:2021-02-25
移动端阅览
景惠甜,韩丽,高志宇.基于卷积神经网络特征提取的风电功率爬坡预测[J].电力系统自动化,2021,45(4):98-105.
JING Huitian,HAN Li,GAO Zhiyu.Wind Power Ramp Forecast Based on Feature Extraction Using Convolutional Neural Network[J].Automation of Electric Power Systems,2021,45(4):98-105.
景惠甜,韩丽,高志宇.基于卷积神经网络特征提取的风电功率爬坡预测[J].电力系统自动化,2021,45(4):98-105. DOI: 10.7500/AEPS20200227005.
JING Huitian,HAN Li,GAO Zhiyu.Wind Power Ramp Forecast Based on Feature Extraction Using Convolutional Neural Network[J].Automation of Electric Power Systems,2021,45(4):98-105. DOI: 10.7500/AEPS20200227005.
为提高风电功率爬坡预测的准确性,提出了一种基于卷积神经网络、长短期记忆网络和注意力机制的风电功率爬坡预测方法。首先,针对风电功率爬坡发生次数少、特征复杂、预测模型难以对小样本爬坡事件有效学习的问题,使用卷积神经网络对风电功率序列进行特征提取。然后,使用长短期记忆网络建立预测模型,解决风电功率的长时依赖问题,并在模型中加入注意力机制对长短期记忆网络单元的输出进行加权,从而加强风电特征的学习,提高爬坡预测准确度。仿真验证表明,模型对风电功率爬坡预测有较高的准确性。
To improve the accuracy of wind power ramp forecast
a method based on long short-term memory (LSTM) network
convolutional neural network (CNN) and attention mechanism (AM) is proposed. Wind power ramp event rarely occurs and has complex characteristics
and it is difficult for forecast model to effectively learn from small number of ramp event samples. So CNN is used to extract features in wind power time series. And the LSTM network is used to build forecasting model to solve the long-term dependence of wind power. Then AM is added to the model to weight outputs of LSTM network units to strengthen the learning of wind power features
thus improving the accuracy of ramp forecast. The simulation results show that the forecasting model has high accuracy on wind power ramp forecast.
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