Qiang Xiong

TL;DR: In this paper, an engineering oriented control system design method for multivariable processes is presented by employing the concepts of energy transmission ratio and effective relative gain, an equivalent transfer function matrix for closed loop control system can be obtained.

TL;DR: In this article, a new dynamic loop pairing criterion for decentralized control of multivariable processes is presented, utilizing both steady state gain and bandwidth information of the process open loop transfer function elements, through defining an effective gain matrix, the loop pairing procedures of popular relative gain array method is directly extended to the new method which can reflect dynamic loop interactions under finite bandwidth control.

TL;DR: In this paper, the effective transfer function for independent controller design for multi-input multi-output processes is provided in terms of relative gain and relative frequency, which is simple, straightforward, easy to understand and implement by field engineers.

TL;DR: In this paper, a novel parameter identification method for closed-loop two-input-two-output (TITO) processes from step-test is proposed, which is simple for engineering application and robust in the presence of large amounts of measurement noise.

TL;DR: The significance of the proposed method is that it relaxes most restrictions of existing multivariable process identification methods, it is universally applicable to closed-loop identification for cross-couplingMultivariable processes and its effectiveness and practicality are shown.