Ill-conditioned dynamic hysteresis compensation for a low-frequency magnetostrictive vibration shaker
Sign Up to like & getrecommendations! Published in 2019 at "Nonlinear Dynamics"
DOI: 10.1007/s11071-019-04804-1
Abstract: We report an adaptive feedforward controller to address the ill-conditioned dynamic hysteresis on a custom-developed magnetostrictive vibration shaker. The vibration shaker works within low-frequency bandwidth. Magnetostrictive-induced hysteresis is a main issue that affects excitation waveform… read more here.
Keywords: hysteresis; ill conditioned; vibration shaker; dynamic hysteresis ... See more keywords
Identification of higher-dimensional ill-conditioned systems using extensions of virtual transfer function between inputs
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Process Control"
DOI: 10.1016/j.jprocont.2017.05.007
Abstract: Abstract A new formulation is proposed to directly extend the virtual transfer function between inputs (VTFBI) approach to ill-conditioned systems with dimensions higher than 2 × 2. The method requires only a single correlated component and is… read more here.
Keywords: virtual transfer; ill conditioned; transfer function; function inputs ... See more keywords
Optimization-based Control Strategy with Wavelet Network Input-Output Linearizing Constraint for an Ill-Conditioned High-Purity Distillation Column
Sign Up to like & getrecommendations! Published in 2017 at "Industrial & Engineering Chemistry Research"
DOI: 10.1021/acs.iecr.7b01135
Abstract: A new nonlinear optimization control strategy is developed for multivariable control of an ill-conditioned, high-purity distillation column. A high-gain directional effect resulting from the ill-conditioned nature of the system causes difficulty in controllability and requires… read more here.
Keywords: ill conditioned; control; conditioned high; control strategy ... See more keywords
Square-root Kalman-like filters for estimation of stiff continuous-time stochastic systems with ill-conditioned measurements
Sign Up to like & getrecommendations! Published in 2017 at "Iet Control Theory and Applications"
DOI: 10.1049/iet-cta.2016.1381
Abstract: This study addresses the performance of the extended and extended-cubature Kalman filters for state estimation of ill-conditioned stiff continuous-discrete stochastic systems. Stiff models arise naturally in practise as, for instance, the Van der Pol oscillator… read more here.
Keywords: stiff continuous; conditioned measurements; ill conditioned; square root ... See more keywords
Solving Ill-Conditioned State-Estimation Problems in Distribution Grids With Hidden-Markov Models of Load Dynamics
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Transactions on Power Systems"
DOI: 10.1109/tpwrs.2019.2928211
Abstract: Future smart grid operations must rely upon accurate state estimation (SE). Estimation at the distribution level is very challenging since the customary monitoring infrastructure inhibits access to real-time widespread information, precluding redundancy. To overcome the… read more here.
Keywords: load dynamics; state estimation; solving ill; ill conditioned ... See more keywords