Controller synthesis for negative imaginary systems: a data driven approach. Issue 12 (1st August 2016)

• Record Type: Journal Article
• Authors: Mabrok, Mohamed A.; Petersen, Ian R.
• Is Part Of: IET control theory & applications. Volume 10:Issue 12(2016)
• Page Start: 1480
• Page End: 1486
• Publication Date: 2016-08-01
• Subjects: control system synthesis -- flexible structures -- actuators -- force sensors -- frequency response -- minimisation -- transfer functions -- identification; controller synthesis -- negative imaginary systems -- data driven approach -- NI property -- flexible structure systems -- collocated force actuators -- position sensors -- data‐driven controller synthesis methodology -- frequency response data -- controller frequency response -- controller transfer function -- system identification methods; Control theory -- Periodicals; Automatic control -- Periodicals; 629.8312
• DOI: 10.1049/iet-cta.2015.0800
• Languages: English
• ISSNs: 1751-8644

Abstract

Abstract : The negative imaginary (NI) property occurs in many important applications. For instance, flexible structure systems with collocated force actuators and position sensors can be modelled as negative imaginary systems. In this study, a data‐driven controller synthesis methodology for NI systems is presented. In this approach, measured frequency response data of the plant is used to construct the controller frequency response at every frequency by minimising a cost function. Then, this controller response is used to identify the controller transfer function using system identification methods.