项目名称: 分布式流体网络系统建模、估计和控制问题方法研究
项目编号: No.61304045
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: 刘帅
作者单位: 山东大学
项目金额: 25万元
中文摘要: 本项目以一类流体网络控制系统为研究对象,旨在系统地研究其分布式建模、估计以及控制问题。首先以空调送风系统为出发点,以空气动力学为基础,用非线性常微分方程近似地描述流体流量动态,基于图论方法建立流体网络动态模型,并考虑同类流体网络系统,提取这类流体系统的特征,得到一类满足这些特征的抽象函数作为研究模型。然后针对这类流体模型的非线性特点以及网络系统延时、丢包的问题,设计分布式估计器。最后结合当今分布式协同控制算法,基于估计的数据,对流体网络系统设计分布式控制器。以降低系统能耗为目标,对比分析分布式协同算法下和传统中心式或独立式控制算法下系统能耗,对控制器参数进行优化。本项目的研究内容是当今控制领域热门的研究课题,具有重要的理论意义和现实意义。
中文关键词: 分布式控制;网络流;协同控制;系统建模;分布式估计
英文摘要: A class of fluid network control systems will be studied in this project. Distributed modeling, estimation and control problems for such systems will be investigated systematically. First, the air distribution in heating and ventilating air-conditioning systems will be considered. Based on Aerodynamics, the flow dynamics can be approximated by a nonlinear ordinary differential equation. The fluid network dynamic systems will be modeled based on graph theory. A class of similar fluid network systems will be characterized and studied. A class of functions satisfying the conditions will be considered as the objectives to be investigated. Second, distributed estimator based on the nonlinearity of those functions as well as time-delay, packet dropouts problems in networked control systems will be designed. Last, based on the fusion information and distributed cooperative control algorithms, distributed controller for fluid network systems is designed. Aiming at reducing energy consumption of the system, the controller will be optimized based on the comparison of the energy consumption of the system under distributed cooperative controller and centralized controller. The problems to be studied are hot in control area which are of great importance from both theoretical and practical perspective.
英文关键词: Distributed control;Network flow;Cooperative control;System modeling;Distributed estimation