【摘要】 由于多变量系统内部的耦合作用，采用单一的分散常规控制器已经很难达到好的控制品质，分散常规控制器不能实现解耦功能，而直接设计解耦器又存在诸多困难。针对这种情况，在分散常规控制器的基础之上，引入开环相对增益阵对多变量系统辅助控制器进行配对。依据控制系统的前馈控制原则，整定控制器参数，实现辅助控制器参数的设计。辅助控制器和主控制器共同作用，降低系统内部耦合，提高控制品质。更多还原

【Abstract】 Considering the coupling action within multivariable system, conventional and single decentralized PID controller becomes difficult to achieve good control quality. The decentralized controllers fail to realize decoupling function and it is difficult to design a decoupler directly. Based on the decentralized PID control system, having the open-loop relative gain array adopted for matching with the ancillary controller was implemented. Basing on the feed-forward control principle, the parameters of the ancillary controller were adjusted and the ancillary controller and the primary controller work together to reduce coupling degree in the system and improve control quality of the multivariable system.更多还原