Advanced d-partitioning analysis and design of robust control systems

Abstract

There is a need for control systems to be robust or insensitive to parameter variations, disturbances and noise. In the process of design and analysis of a robust control system, it is essential to determine the regions of stability, corresponding to the variation of one or more system parameters. Most of the research and development efforts on stability analysis of systems with variable parameters and robust control design have focused on very specific and limited cases. There is a shortage of a user friendly universal analysis tool or procedure that can show the variable parameters margins, their interaction and the robust assessment for different types of control systems. Also, there is a growing need for a comprehensive technique of a robust controller design that can lead to system insensitivity for any of the parameters variations, disturbances and noise within specific limits.