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首页> 外文期刊>International Journal of Innovative Computing Information and Control >NOVEL APPROACH TO DECENTRALIZED CONTROLLER DESIGN FOR LARGE SCALE UNCERTAIN LINEAR SYSTEMS
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NOVEL APPROACH TO DECENTRALIZED CONTROLLER DESIGN FOR LARGE SCALE UNCERTAIN LINEAR SYSTEMS

机译：大规模不确定线性系统分散控制器设计的新方法

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摘要

Such characteristics as large order multi-input multi-output (MIMO) system, system uncertainties, and information structure constraints, make large scale systems too complex to be effectively controlled. For the purposes of analysis and controller synthesis such systems are divided into independent sub-problems and controlled under specific information constraints. This is known as decentralized control. Analyzing stability of each of the resulting, smaller systems separately, i.e., by neglecting interconnections, is a tractable but highly conservative approach. In the previous literature on decentralized control, complex systems are divided into two classes of systems, i.e., those with strong interaction links and those with weak ones. The present paper proves that the criterion of whether a complex system is stable or not is a better basis of the breakdown of systems into classes. In the case of a stable complex system, the corresponding decentralized controller design is significantly easier than that in the unstable case. In this paper an original method of decentralized controller design is obtained for linear time-invariant large scale systems with small conservatives. The design procedure consists of two basic steps as follows. In the first step, basic properties of closed-loop controlled subsystems without interaction are determined, in such way that stability and performance of the closed-loop large scale system are guaranteed. In the second step, a decentralized control algorithm needs to be designed, which ensures the demanded subsystem closed-loop properties. If in the second step conditions are satisfied the stability and performance of subsystems and the complex plant is guaranteed, the decentralized controller design procedure performs on the subsystem level. Examples show the effectiveness of the propose method.
机译：这种特性是大订单多输入多输出（MIMO）系统，系统不确定性和信息结构约束，使大规模系统过于复杂，以有效控制。出于分析和控制器合成的目的，这种系统被分成独立的子问题并根据特定信息约束控制。这称为分散控制。分别分析每个得到的较小系统的稳定性，即通过忽略互连，是一种易行但高度保守的方法。在经过分散控制的先前文献中，复杂的系统被分成两类系统，即，具有强烈的交互链路和具有弱弱的系统。本文证明了复杂系统是否稳定的标准是更好的系统分解为课程。在稳定的复杂系统的情况下，相应的分散控制器设计比不稳定的情况显着容易。本文在具有小保守部位的线性时间不变大型系统获得了一种分散控制器设计的原始方法。设计过程由两个基本步骤组成，如下所示。在第一步中，确定不相互作用的闭环控制子系统的基本特性，以这种方式保证闭环大规模系统的稳定性和性能。在第二步中，需要设计分散的控制算法，这确保了所需的子系统闭环属性。如果在第二步条件下满足子系统的稳定性和性能和复杂工厂的稳定性和性能，则分散的控制器设计过程对子系统级执行。实施例显示了提议方法的有效性。

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