分散控制系统的扰动抑制能力评价新标准

A New Assessing Standard of Disturbance Rejection Capacity for Decentralized Control Systems

针对分散控制系统的扰动抑制能力评价问题,通过考虑回路处于不同状态时的情形,考察各种状态下的扰动增益并引入完全相对扰动增益矩阵,提出了一个度量新标准.该标准克服了其它评价方法的缺点,能够衡量分散控制系统的总的扰动抑制能力.对数值算例和一个气化炉基准过程的研究表明,提出的标准是设计分散控制结构的有用工具.

To investigate the disturbance rejection capacity of decentralized control systems,a new assessing standard is proposed by introducing full relative disturbance gain matrix with investigation of disturbance gain under every state and considering the situations when control loops are in different operation modes.The standard overcomes the shortcomings of existing methods,and is an overall evaluation measure for the whole control system.The studies on a numerical example and a gasifier benchmark problem show that the proposed standard is a useful tool for designing the decentralized control structure.