Large Scale Control System Theory and Applications

大型控制系统及其应用 背景技术背景： 控制系统和自动化领域处理修改系统行为的问题，以便某些 “理想”发生了。例如，在一个化工厂，它有100的测量和100的控制阀 为了改变，希望该装置应该产生一些所需的输出产品，例如聚合物。然而在这种情况下 不可能有一个人或甚至一组人能够正确地调节工厂的阀门（输入） 为了达到所需的产品，由于工厂的行为的复杂性，并由于这样的事实，干扰， 不可测量的，总是存在的。 为了实现控制工厂的目标，使用“控制器”，其通常是计算机上的一组指令。 “简单工厂”通常有一个“集中控制器”，系统的所有信息都输入计算机， 对于诸如化工厂的复杂系统，具有这样的集中控制器和“分散控制器”是不现实的， 其包括许多子控制器，每个子控制器都彼此隔离。但问题是， “分散控制”的理论还不完善，分散控制的设计还处于起步阶段。 研究计划： 该研究项目是申请人在所谓的“大规模控制系统”方面所做研究的延续 理论”。特别是重点是关于分散控制，特别是分散控制器的设计。 提出新理论： 就正在开发的新理论而言，重点是： (i)澄清分散固定模式（DFM）的属性，这仍然没有很好地理解，将作出 (ii)试图获得分散控制的基本限制将作出 (iii)将尝试一种新的分散控制器设计方法的植物，它具有的性质，它需要 没有数学模型;人们认为，这种设计方法是重要的，因为模型的建立很难在 工业系统。 (iv)将研究各种复杂的分散控制设计方法。 提出的新应用问题： 结合新的理论，确定理论在应用于真实的时实际上“工作”得有多好是非常有趣的。 世界性问题，因此也将研究一些应用问题，这些问题本身就很有趣。 (i)新一代硬盘驱动器系统的控制器将被设计，相信这将是一个数量级的速度 比现有的盘驱动器（西部数据公司，Advanced Servo-Mechanical Technologies，圣何塞，CA，USA对此感兴趣 新的控制器设计;注意：似乎没有加拿大公司可以与之互动。 (ii)一种大型通用电力管理系统和分布式控制器， 将实施包括多个分布式能源（DER）单元的微电网系统。这类问题很重要 在微电网系统中，将比以前的研究要求高一个数量级。 (iii)开发一个控制器的工作“以及”的情况下，脊髓损伤患者的问题将进行。 (iv)将对第三代大型柔性空间结构（LFSS）的分散控制进行研究;特别是必要的 并且将给出解存在和控制器表征的充分条件。这一理论将在 将其应用于MSAT II LFSS。

LARGE SCALE CONTROL SYSTEMS AND APPLICATIONS BACKGROUND: The field of Control Systems and Automation deals with the problem of modifying the behaviour of a system, so that something "desirable" occurs. For example in a chemical factory, which has literally 100's of measurements and 100's of control valves to vary, it is desired that the plant should produce some desired output product , e.g. a polymer. In this case however it is impossible to have a single human or even a group of humans to be able to correctly adjust the valves (inputs) of the plant to achieve the desired product due to the complexity of the plant's behaviour, and due to the fact that disturbances, which are unmeasurable, are always present. To achieve this objective of controlling a plant, a "controller" is used, which typically is a set of instructions on a computer. "Simple plants" generally have a "centralized controller" in which all information of the system is fed into the computer but, for complex systems such as a chemical plant, it is not realistic to have such a centralized controller and a " decentralized controller", which consists of many sub-controllers, each of which are all isolated from each other, is used. The problem however, is that the theory of "decentralized control" is still incomplete, and decentralized control design is still in its infancy. RESEARCH STUDY PROPOSED: The research project proposed is a continuation of previous studies made by the applicant on so called "Large scale control systems theory". In particular the focus is about decentralized control, and in particular the design of decentralized controllers. NEW THEORY PROPOSED: In terms of the new theory being developed, a focus on: (i) Clarifying the properties of decentralized fixed modes (DFM), which are still not well understood, will be made (ii) An attempt on obtaining the fundamental limitations of decentralized control will be made (iii) A new decentralized controller design method for plants will be attempted which has the property that it requires no mathematical model; it is believed that such a design approach is important, because model building is difficult to carry out in industrial systems. (iv) A study of various complex decentralized control design methods will be made. NEW APPLICATION PROBLEMS PROPOSED: In conjunction with new theory, it is of great interest to determine how well the theory actually "works" when applied to real world problems, and so some application problems will also be studied, which are interesting in their own right. (i) A controller for new generation hard disc drive systems will be designed which is believed will be an order of magnitude faster than existing disc drives (Western Digital Corp., Advanced Servo-Mechanical Technologies, San Jose, CA, USA are interested in this new controller design; note:there appears to be no Canadian company to interact with.) (ii) A large generalized electric power management system and decentralized controller for the autonomous mode operation of a microgrid system that includes multiple distributed energy resource (DER) units will be carried out. This type of problem is important in microgrid systems and will be an order of magnitude more demanding than previous studies. (iii) The problem of developing a controller which works "well" for the case of patients with spinal cord injury will be carried out. (iv) A study of the decentralized control of third generation large flexible space structures (LFSS) will be made; in particular necessary and sufficient conditions for a a solution to exist and a controller characterization will be made. The theory will be tested out on applying it to the MSAT II LFSS.