Internal model controller design via <i>H</i><sub>∞</sub> dynamic output feedback

Yaman, Serkan; Üstoğlu, İlker; Ucun, Levent

doi:10.1177/0142331216649024

Cited by 2 publications

(1 citation statement)

References 13 publications

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“…Finally, solutions for the problem of inversion are presented. They aim to design a controller that is easy to carry out and close as possible to the model inverse (Yaman et al, 2016).…”

Section: Imc Designmentioning

confidence: 99%

A comparative study on existing and new methods to design internal model controllers for non-square systems

Saidi

Touati

Dhahri

et al. 2019

Transactions of the Institute of Measurement and Control

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This paper focuses on a challenging problem in the internal model control (IMC) strategy: the model inversion to design the IMC controller for non-square systems. Several existing approaches for the synthesis of a specific inversion of the identified model will be presented in this paper to deal with the differences between the system’s inputs and outputs numbers. The non-square effective relative gain is firstly presented. It consists of the measurement of interactions between the loops of the system in order to square the system and make it invertible. The equivalent transfer function method is presented as well. It is based on tuning the pseudo-inverse of the process to design the internal model controller. These methods are then compared with a novel proposed model inversion approach based on virtual outputs method. Virtual adding is considered in order to obtain an invertible square transfer matrix to design the internal model controller. This simple yet effective method ensures robust control performance. Its efficiency and availability, as compared with other presented methods, is illustrated through simulations on an overactuated system with three inputs/two outputs.

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“…Finally, solutions for the problem of inversion are presented. They aim to design a controller that is easy to carry out and close as possible to the model inverse (Yaman et al, 2016).…”

Section: Imc Designmentioning

confidence: 99%

A comparative study on existing and new methods to design internal model controllers for non-square systems

Saidi

Touati

Dhahri

et al. 2019

Transactions of the Institute of Measurement and Control

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H_∞ control of anti-rollover strategy based on predictive vertical tire force

Zhao

Lin

Wang

2017

Transactions of the Institute of Measurement and Control

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The mainstream rollover evaluation index, lateral load transfer rate (LTR), is commonly used in the rollover control field. However, it is not instant enough to reflect the rollover tendency since it can only reflect the load transfer rate of one side wheels while single rear wheel leaves the ground first during rollover happens. In order to monitor the rollover tendency more instantly and improve the reliability of anti-rollover control system, a new evaluation index called predictive vertical tire force (PVTF) is proposed, which is based on the single vertical tire force and merges both iterative prediction and derivative prediction methods. Meanwhile, an optimization is taken to solve the contradiction between prediction time and deviation. Secondly, using the PVTF as the measurement output, an anti-rollover control system based on active steering is established in this paper. In order to achieve the desired tracking effect and anti-jamming capability, a two-way H∞ controller is adopted in the anti-rollover control system. Lastly, the simulation results of J-turn condition and NHTSA (national highway traffic safety administration) condition are conducted and the results indicate that the anti-rollover control system has strong stability and robustness. Meanwhile, benefit from the pre-warning function of PVTF, the controller is triggered earlier and the vertical tire forces of four wheels are controlled to be positive all the time, which is beneficial for handling stability.

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Internal model controller design via H_∞ dynamic output feedback

Cited by 2 publications

References 13 publications

A comparative study on existing and new methods to design internal model controllers for non-square systems

A comparative study on existing and new methods to design internal model controllers for non-square systems

H_∞ control of anti-rollover strategy based on predictive vertical tire force

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Internal model controller design via H∞ dynamic output feedback

Cited by 2 publications

References 13 publications

A comparative study on existing and new methods to design internal model controllers for non-square systems

A comparative study on existing and new methods to design internal model controllers for non-square systems

H∞ control of anti-rollover strategy based on predictive vertical tire force

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Product

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Internal model controller design via H_∞ dynamic output feedback

H_∞ control of anti-rollover strategy based on predictive vertical tire force