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A fully autonomous kernel-based online learning neural network model and its application to building cooling load prediction

机译:一种完全自主的基于核的在线学习神经网络模型及其在建立冷负荷预测中的应用

摘要

Building cooling load prediction is critical to the success of energy-saving measures. While many of the computational models currently available in the industry have been developed for this purpose, most require extensive computer resources and involve lengthy computational processes. Artificial neural networks (ANNs) have recently been adopted for prediction, and pioneering works have confirmed the feasibility of this approach. However, users are required to predetermine an ANN model's parameters. This hinders the applicability of the ANN approach in actual engineering problems, as most engineers may be unfamiliar with soft computing. This paper proposes a fully autonomous kernel-based neural network (AKNN) model for noisy data regression prediction. No part of the model's mechanism requires human intervention; rather, it self-organises its structure according to the training samples presented. Unlike the other existing autonomous models, the AKNN model is an online learning model. It is particularly suitable for online steps-ahead prediction. In this paper, we benchmark the AKNN model's performance according to other ANN models. It is also successfully applied to predicting the cooling load of a commercial building in Hong Kong. The occupancy areas and concentration of carbon dioxide inside the building are successfully adopted to mimic the building's internal cooling load. Training data was adopted from actual measurements taken inside the building. Its results show reasonable agreement with actual cooling loads.
机译:建筑物制冷负荷的预测对于节能措施的成功至关重要。尽管已经为此目的开发了许多当前在工业上可用的计算模型,但是大多数都需要大量的计算机资源并且涉及冗长的计算过程。人工神经网络(ANN)最近已被用于预测,并且开创性工作已经证实了这种方法的可行性。但是,要求用户预先确定ANN模型的参数。由于大多数工程师可能不熟悉软计算,因此这阻碍了ANN方法在实际工程问题中的适用性。本文提出了一种用于噪声数据回归预测的完全自主的基于核的神经网络(AKNN)模型。该模型机制的任何部分都不需要人工干预。而是根据给出的训练样本自组织其结构。与其他现有的自治模型不同,AKNN模型是一种在线学习模型。它特别适用于在线提前预测。在本文中,我们根据其他ANN模型对AKNN模型的性能进行了基准测试。它也成功地应用于预测香港商业建筑的制冷负荷。成功地采用了建筑物内部的占用面积和二氧化碳浓度来模拟建筑物的内部制冷负荷。训练数据是根据建筑物内部的实际测量结果得出的。结果表明与实际的冷却负荷合理吻合。

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