N
Niranjan Saikumar
Researcher at Delft University of Technology
Publications - 42
Citations - 439
Niranjan Saikumar is an academic researcher from Delft University of Technology. The author has contributed to research in topics: Describing function & Control theory. The author has an hindex of 10, co-authored 41 publications receiving 289 citations. Previous affiliations of Niranjan Saikumar include Indian Institute of Science.
Papers
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Journal ArticleDOI
Tuning guidelines for fractional order PID controllers: Rules of thumb
TL;DR: A practical tuning method for FO-PID controllers is introduced using classical loop-shaping tools to propose this new simple tuning rule and is validated in a high-tech precision positioning system.
Journal ArticleDOI
“Constant in Gain Lead in Phase” Element– Application in Precision Motion Control
TL;DR: In this article, a constant in gain lead in phase (CgLp) element using nonlinear reset technique is proposed for high-tech precision positioning applications, which can be integrated with PID and tested on one of the DOFs of a planar precision positioning stage.
Proceedings ArticleDOI
No More Differentiator in PID: Development of Nonlinear Lead for Precision Mechatronics
TL;DR: In this article, the authors developed a novel lead element which provides higher precision and stability compared to the linear lead filter and can be used as a replacement for the same, which is presented and validated on a Lorentz-actuated nanometer precision stage.
Journal ArticleDOI
Development of Robust Fractional-Order Reset Control
TL;DR: A framework for the combination of robust fractional-order CRONE control with nonlinear reset is given, which can provide well-tuned open-loop responses that can overcome the fundamental linear control limitation of Bode’s gain-phase relationship.
Journal ArticleDOI
Reset control approximates complex order transfer functions
Duarte Valério,Niranjan Saikumar,Ali Ahmadi Dastjerdi,Nima Karbasizadeh,S. Hassan HosseinNia +4 more
TL;DR: This work proposes an alternative nonlinear approximation, combining a CRONE approximation of a fractional derivative with reset control, which does not suffer from problems of the literature and shows that nonlinear effects do not preclude the desired performance.