输出随机分布控制系统的控制回路性能评估方法研究

项目名称： 输出随机分布控制系统的控制回路性能评估方法研究

项目编号： No.61473025

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 自动化技术、计算机技术

项目作者： 周靖林

作者单位： 北京化工大学

项目金额： 82万元

中文摘要： 控制回路性能评估是控制领域中较活跃的一个研究分支，近几年在国际上吸引了越来越多的关注，在高斯型随机系统或确定系统，已经有许多理论研究成果出现并成功得到了实际应用。然而，在非高斯型随机系统中，尚没有相关的研究成果，更谈不上实际应用。本项目以输出随机分布控制回路为研究对象，该控制回路以输出概率密度函数的形状为控制目标，考虑如何建立相应的控制回路性能评估体系，具体包含四个方面：第一、具有一般性的随机分布控制系统的稳态性能评估基准、第二、动态性能评估基准；第三、控制建议或控制器重构方法；第四，控制回路经济性能评价基准。输出随机分布控制系统的性能评价在实际工业过程质量控制中具有重要的不可替代的作用，该类性能评价和控制器重构在设计上具有很大挑战性。本课题从随机分布控制系统的性能评估基准及控制器重构等入手，对随机分布控制系统的性能评估的关键技术进行系统化研究。

中文关键词： 随机分布控制系统；性能评估；最小熵控制；控制器重构；跟踪控制

英文摘要： Control loop performance evaluation has been an important subject of control theory and applications and has attracted huge attention in the past three decades. As a result, many new approaches have been developed and used successfully in wide industries. In most existing methods, it is assumed that all the variables in the system obey a Gaussian-type distribution. This assumption, however, can be too restrictive for real systems that are normally subject to non-Gaussian noises. Only in the output stochastic distribution control (SDC), which considers non-Gaussian stochastic nature of variables and signals, the probability density functions (PDF) of the interested variable(s) are controlled directly. This clear advantage motivates the research in this project. To be more specific, how to establish the new control loop performance evaluation method for SDC systems will be investigated, which includes the following four aspects: the steady-state performance evaluation benchmarks of the general SDC system, the dynamic performance evaluation benchmarks, control strategies or controller reconfiguration methods, and the control loop economic performance evaluation benchmarks. While the output SDC loop performance evaluation plays an important and irreplaceable role in quality control of industrial processes, it is still a challenging task in both academics and industries. We aim to tackle this challenging task through innovative and systematic investigation of the performance evaluation benchmarks of the output SDC loop and the corresponding controller reconfiguration methods.

英文关键词： Stochastic distribution control systems;Control loop performance assessment;Minimum entropy control;Controller reconfiguration;Tracking control