PDF《硕士学位论文 基于软-硬件联合仿真平台的》

最 后通过比较这四个模型结果来分析在不同仿真平台中控制策略仿真结果的影响 因素. 结果表明, 可以利用所开发的软件-硬件联合仿真平台对控制策略进行仿真, 仿真平台能够充分利用现有软件工具和硬件的优势,用于仿真 HVAC 控制系统仿 真与控制策略的评价,为HVAC 控制系统的控制策略评价提供了可行的方法与新 的仿真平台. 关键字:HVAC 控制系统,控制策略评价,软件-硬件联合仿真,仿真平台 Tongji University Maste of Engineering Abstract II Abstract Advanced control systems are widely applied in modern buildings so as to meet the requirements of energy conservation and higher level of indoor environmental quality. Building automation (BA) systems are having bigger impact on building energy and indoor environmental performances with rapid development of control technology. The performance assessment plays an important role in the design and O&

M (operation and maintenance) of control systems. There is an urgent need of developing a test bed C a performance assessment environment, in which various control strategies can be evaluated and thus the operating performance of control systems can be improved. The experimental research on performance assessment of HVAC control strategies consumes a great deal of cost and labor;

besides, the study objects are normally fixed. Meanwhile, no single building performance simulation tool offers sufficient capabilities and flexibilities to accommodate the ever increasing complexity and rapid innovations in control systems and technologies. Therefore, it is necessary to establish a new emulation environment for performance assessment of HVAC control strategies. The aim of the presented work is to develop a hardware-in-the-loop emulation test bed for performance assessment of HVAC control strategies and to analyze the main factors that have impacts on the emulation results, thus to provide some ideas and solutions for the development of better performance emulation test bed in the future. In order to achieve this goal, the available methodologies and tools for assessment of HVAC control strategies are first investigated and the key points of hardware-in-the loop emulation test bed are studied in detail. Further, a prototypical office building model is developed and its HVAC system is designed according to the cooling and heating load of the building. Corresponding control strategies are also selected and specified for the HVAC system. Then the design scheme of a hardware-in-the-loop emulation test bed is described in the thesis, which is to develop a middleware based on OPC protocol for real-time communication between software and hardware. A series of technical problems occurs during the development of the 同济大学 硕士学位论文 摘要 III test bed are discussed as well. Finally, two levels of control strategies for the prototypical HVAC system are emulated and evaluated both with the building energy simulation software TRNSYS and with the hardware-in-the-loop emulation test bed, and the impacting factors of the emulation results are also analyzed. The study work shows that the hardware-in-the-loop emulation test bed which combines the strengths of software and hardware can be used to emulate HVAC control systems and evaluate corresponding control strategies, so as to provide feasible methodology and new emulation test bed for performance assessment of control system and strategy. Key words: HVAC control system, performance assessment of control strategies, hardware-in-the-loop emulation, emulation test bed 同济大学 硕士学位论文 目录 IV 目录第1章绪论.1 1.1 研究背景.1 1.1.1 HVAC控制系统性能的影响及控制系统的发展现状.1 1.1.2 HVAC控制系统控制策略性能的评价方法.2 1.2 国内外发展现状.3 1.2.1 HVAC控制策略性能评价的实验研究.3 1.2.2 HVAC控制策略性能评价的仿真研究.4 1.3 研究目的、意义与主要研究内容.6 1.3.1 研究目的及意义.6 1.3.2 本课题主要研究内容.6 第2章HVAC控制策略性能评价方法的研究.8 2.1 全部仿真在虚拟环境中实现.8 2.1.1 单一能耗模拟软件仿真方法.8 2.1.2 软件-软件实时联合仿真方法.9 2.2 软件-硬件间实时联合仿真方法.11 2.3 本章小结.14 第3章仿真的建筑模型、空调系统模型以及对应控制策略.15 3.1 建筑模型.15 3.1.1 建筑模型的几何结构.15 3.1.2 建筑模型的相关参数.16 3.2 空调系统模型.16 3.2.1 空气系统.17 3.2.1 水系统.17 3.2.3 空调系统设备参数.19 3.3 HVAC系统的控制系统以及对应的控制策略.20 3.3.1 HVAC系统的控制系统.20 3.3.2 HVAC控制系统对应的控制策略.23 3.4 本章小结.26 第4章单一能耗模拟软件仿真的实现.28 4.1 TRNSYS特点以及选择理由.28 4.2 TRNSYS的建模