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Multi-ScaleConvolutional NeuralNetwork WithTime-Cognition forMulti-Step Short-TermLoad Forecasting Zhuofu DengBinbin WangYanlu Xu2019 год

Multi-Scale Convolutional Neural Network With Time-Cognition for Multi-Step Short-Term Load Forecasting
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Аннотация: Electric load forecasting has always been a key component of power grids. Many countries have opened up electricity markets and facilitated the participation of multiple agents, which create a competitive environment and reduce costs to consumers. In the electricity market, multi-step short-term load forecasting becomes increasingly significant for electricity market bidding and spot price calculation, but the performances of traditional algorithms are not robust and unacceptable enough. In recent years, the rise of deep learning gives us the opportunity to improve the accuracy of multi-step forecasting further. In this paper, we propose a novel model multi-scale convolutional neural network with time-cognition (TCMS-CNN). At first, a deep convolutional neural network model based on multi-scale convolutions (MS-CNN) extracts different level features that are fused into our network. In addition, we design an innovative time coding strategy called the periodic coding strengthening the ability of the sequential model for time cognition effectively. At last, we integrate MS-CNN and periodic coding into the proposed TCMS-CNN model with an end-to-end training and inference process. With ablation experiments, the MS-CNN and periodic coding methods had better performances obviously than the most popular methods at present. Specifically, for 48-step point load forecasting, the TCMS-CNN had been improved by 34.73%, 14.22%, and 19.05% on MAPE than the state-of-the-art methods recursive multi-step LSTM (RM-LSTM), direct multi-step MS-CNN (DM-MS-CNN), and the direct multi-step GCNN (DM-GCNN), respectively. For 48-step probabilistic load forecasting, the TCMS-CNN had been improved by 3.54% and 6.77% on average pinball score than the DM-MS-CNN and the DM-GCNN. These results show a great promising potential applied in practice.
Год издания: 2019
Авторы: Zhuofu Deng, Binbin Wang, Yanlu Xu, Tengteng Xu, Chenxu Liu, Zhiliang Zhu
Издательство: Institute of Electrical and Electronics Engineers
Источник: IEEE Access
Ключевые слова: Energy Load and Power Forecasting, Image and Signal Denoising Methods, Stock Market Forecasting Methods
Другие ссылки: IEEE Access (PDF)
IEEE Access (HTML)
DOAJ (DOAJ: Directory of Open Access Journals) (HTML)