【作者】 许静；

【导师】 任庆昌；

【作者基本信息】 西安建筑科技大学 ， 计算机应用技术， 2003， 硕士

【摘要】 从节能和提高室内环境质量的角度来看，暖通空调(HVAC)自控系统是楼宇自动化中最重要的系统。因此，采用有效的空气调节方式对智能建筑的能量管理控制(energy management control，EMC)具有重要意义。目前，变风量(variable air volume，VAV)空调系统以其巨大的节能潜力逐渐成为国内外空调系统的主流。但是，变风量(VAV)空调系统具有多变量、强耦合、非线性、时变的特点，因此它的设计、运行和管理都比定风量(constant air volume，CAV)系统难度大。这也是限制VAV系统更广泛应用的一个重要原因。本论文以变风量空调系统的末端作为研究对象，具体分析了末端部分的控制回路之间的耦合关系；并通过实验测试的方法建立了末端部分被控对象模型。文中应用了自适应线性神经元多变量系统控制的概念，并结合前馈解耦控制的策略，针对变风量空调系统的末端部分提出了自适应线性神经元网络前馈补偿解耦的控制方案。论文中对自适应线性神经元网络前馈补偿解耦的控制方法，从Matlab仿真和实验系统测试两个方面进行了论证。仿真和实验的结果令人满意，证明了它是一种行之有效的解耦控制方法。同时，论文还给出了以Visual Basic工具开发的解耦控制系统应用软件。该软件操作界面良好，通过VB—DDE—METASYS的模式与Metasys系统软件实现了数据交换。更多还原

【Abstract】 Of all the Building Automation Systems (BAS), heating, ventilating and air-conditioning (HVAC) systems are most important from the viewpoint of saving energy and improving the quality of the indoor environment. Therefore, adopting efficient control strategies for air-conditioning plays a vital role in developing improved energy management control (EMC) systems for intelligent buildings (IB). Nowadays, VAV air-conditioning system has gradually become most popular in China and abroad because of its significant energy saving. However, since VAV system is multivariable, strongly coupled , nonlinear and time variant, its design, performance and management are more difficult than CAV system’s. It’s an important reason that limits the vav system for a greater use. The paper takes the vav box as the object for studying. It has analyzed the coupling relation between the control circuits of the vav box side in details. And also, the paper has erected a model for the control by the means of experiment. The concept of adaptive linear neural net control for multi-variables system has been applied in this paper. According to the vav box side of vav system, this paper has concluded a plan of adaptive linear neural net decoupling and control. In fact, the scheme is the concept of feed-forward decoupling and control. In order to prove the plan’s effectiveness, the paper has done jobs in two aspects. One is emulation via the tool of Matlab, the other is doing experiments in real system. Both of the trying are pleased. And they have proved the plan’s validity. Also, the paper has provided a program for the system’s decoupling and control. It is designed by the tool of visual basic. The program exchanges data with the system of Metasy in the mode of VB-DDE-METASYS. And it has fine operating interface.更多还原