Because gas treatment production line is characterized by long flow , wide distribution decentralizing control procedure and a lot of monitoring points etc , fieldbus was adopted for collection of real - time signal , communication and control to realize automatic coordinating management and control of gas treatment production line arid successful control of lead and zinc smelting gas meanwhile ensure normal arid high effective production of lead and zinc 摘要针对烟气治理生产线流程长、分布广,控制工序分散、监控点多等问题,采用现场总线对大型多测点系统进行信号实时采集、通信与控制,实现对烟气治理生产线的自动协调管理及控制,确保在铅锌正常、高效生产的同时,成功实现对铅锌冶炼烟气的彻底治理。
The initiative of acquisition mainly lives in two aspects : firstly why to acquire , this can be explored in economic management and strategy of an enterprise ' s development secondly why an enterprise will use the method of exchange of stock , this can be considered in following factors : capital structure , capacity of financing considered in following factors : capital structure , capacity of financing returning earning , decentralized controlling right and laws and regulations 换股合并的动因主要涉及到两个方面:一是企业为何要合并,这个问题可从经济、管理和企业发展战略等三个方面来探讨;二是企业为何要采取换股方式,企业采取这种方式来完成合并主要考虑企业资本结构、融资能力、收益回报、控制权是否分散及法律法规等方面的因素。
Based on lyapunov stability theory and decentralized control theory of large - scale systems , sufficient conditions for asymptotic stability of the closed - loop fuzzy large - scale systems are derived via lmi technology , and by using information of membership functions these lmi - based sufficient conditions are relaxed and less conservative stabilization conditions are obtained 基于李雅普诺夫稳定性理论及大系统分散控制理论,采用lmi方法导出了该类模糊大系统在采用dpdc模糊控制器时闭环渐近稳定的充分条件,并利用隶属函数的信息对该稳定性条件进行了改进,得出了保守性更小的稳定性条件。
2 . the geometric aspect of decentralized control the decentralized controllable subspace and unobservable subspace were defined . we explore in detail the relations of these two concepts with the centralized controllable subspace and unobservable subspace respectively , and found out that the structural properties ( such as reachability ) played a key role in them 文中充分研究了这两个概念分别与集中控制情况下的能控子空间和不能观测子空间之间的关系,发现大系统的结构特性(可达性)在其中起着关键的作用。