建筑节能中的热环境建模与优化控制问题

项目名称： 建筑节能中的热环境建模与优化控制问题

项目编号： No.61304075

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 自动化技术、计算机技术

项目作者： 李康吉

作者单位： 江苏大学

项目金额： 25万元

中文摘要： 我国是能源消耗大国，其中建筑能耗约占我国社会总能耗的25%，且比例仍在逐年提升。在此背景下，对建筑节能中的热环境建模和优化控制问题展开研究具有重要现实意义和实际应用价值。本项目针对当前建筑热环境模型精度与复杂度之间的矛盾以及由此带来的热环境控制器设计的困难，致力于运用模型降阶和多模型的思路对复杂分布式参数的建筑热环境进行快速精确建模，并设计出综合考虑建筑室内热舒适度和建筑能耗水平的热环境优化控制方案。本项目的创新之处在于将CFD仿真与模型降阶技术结合，并将非线性系统在平衡点线性化展开的思路扩展到复杂分布式参数系统，建立低阶的、多模型形式的室内热环境数学模型。在此基础上，通过温度传感器数目与位置的优化、热环境模型与建筑能耗模型的融合，最终，本项目旨在为暖通空调系统提供一种实用、节能的热环境控制策略，促进建筑节能技术的进一步发展和和应用。

中文关键词： 本征正交分解；交互式优化；分布式参数系统切换控制；建筑能耗短时预测；

英文摘要： With the rapid development of economy, energy consumption in China is considerable. Building energy consumption has accounted for more than a quarter of the total social energy consumption and the ratio is still in increase year by year. Against this background, research on modeling and optimal control problems for thermal environment in building energy efficiency area is of great practical significance and applications. The complicated dynamics of building thermal environment result in the contradiction between modeling accuracy and rapidity, which further brings difficulty to thermal environment controller design. In this project, model reduction technique and multi-model method are employed for fast and accurate modeling of complicated thermal environment characterized by the distributed parameter system. Further, considering indoor thermal comfort and building energy consumption simultaneously, an optimal control scheme is designed. By combining CFD simulation with model reduction and by extending nonlinear system's linearization method to complicated distributed parameter system, indoor thermal environment is constructed in linear, extremely low-order and multi-model form, which is the main innovation of this project. On this basis, through research on optimization of the number/location of temperature sen

英文关键词： proper orthogonal decomposition；interactive optimization；distributed parameter system switching control；short - term forecast of building energy；