Adding one power integrator: a tool for global stabilization of high-order lower-triangular systems

✍ Scribed by Wei Lin; Chunjiang Qian

• Publisher: Elsevier Science
• Year: 2000
• Tongue: English
• Weight: 153 KB
• Volume: 39
• Category: Article
• ISSN: 0167-6911
• DOI: 10.1016/s0167-6911(99)00115-2

✦ Synopsis

A new feedback design tool called adding a power integrator is introduced and used to solve the problem of global robust stabilization, for a signiÿcant class of uncertain nonlinear systems that are of a lower-triangular form but neither necessarily feedback linearizable (fully or partially) nor a ne in the control input, and therefore cannot be dealt with via conventional approaches. Su cient conditions are presented under which a globally stabilizing smooth state feedback control law can be explicitly constructed, using repeatedly the adding one power integrator technique. This novel design technique permits removal of the feedback linearizability and linearity of the control input, which have been two common assumptions so far in the literature of nonlinear control.