The output regulation problem of singular nonlinear systems via the normal output feedback control has been a challenging problem. Existing approaches for solving this problem employed techniques similar to those used for linear singular systems. Results from these approaches either rely on a normalizability assumption or are limited to systems with special structures. This paper gives a complete solution for this problem by employing a novel approach that is also interesting for linear systems.
['Zhiyong Chen', 'Jie Huang']
Solution of output regulation of singular nonlinear systems by normal output feedback