一个控制系统所能期望的最佳设计性能很大程度取决于控制通道对系统极点(模)的移动能力。本文通过引入可控锥、可观锥概念,提出了一套分析系统控制通道对系统极点移动能力的方法,并用于综合分散控制系统的经济合理信息结构,以克服单纯用“无不稳定固定模”为准则来选择信息结构所存在的缺点。 The best design performance a control system can expect depends largely on the ability of the control channel to move the pole of the system. In this paper, by introducing the conception of controllable cone and observable cone, a set of method to analyze the system’s ability to control the pole’s movement of the system is proposed and used to synthesize the economic and reasonable information structure of decentralized control system, so as to overcome the problem of using “non-unstable fixed mold” Guidelines to choose the shortcomings of the information structure.