Controller synthesis for negative imaginary systems: A data driven approach

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IET Control Theory and Applications, ISSN: 1751-8652, Vol: 10, Issue: 12, Page: 1480-1486

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Mohamed A. Mabrok; Ian R. Petersen
Institution of Engineering and Technology (IET); IET Digital Library
Engineering; Computer Science; Mathematics
article description
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.