Results 51 to 60 of about 51,165 (305)

Computationally Efficient Trajectory Optimization for Linear Control Systems with Input and State Constraints

open access: yes, 2012
This paper presents a trajectory generation method that optimizes a quadratic cost functional with respect to linear system dynamics and to linear input and state constraints.
Kennel, Ralph, Stumper, Jean-Francois
core   +1 more source

Simple and robust predictive direct control of DFIG with low constant switching frequency and reduced torque and flux ripples [PDF]

open access: yes, 2011
For conventional direct torque control (CDTC) methods, there are usually undesired torque and flux ripples mainly for two reasons. First, the vectors selected are not necessary the best. Secondly, one-step delay influence in digital implementation causes
Guo, Y, Hu, J, Ma, Q, Zhang, Y, Zhu, J
core   +1 more source

Model Predictive Torque and Flux Control Minimizing Current Distortions

open access: yesIEEE Transactions on Power Electronics, 2019
A new model predictive torque and flux controller is proposed, which controls the electromagnetic torque and rotor (rather than the stator) flux magnitude. Analytical expressions for the weighting factors are derived that ensure that the proposed controller achieves the same closed-loop performance as predictive current control. In particular, the same
Petros Karamanakos, Tobias Geyer
openaire   +3 more sources

Multimodal Mechanical Testing of Additively Manufactured Ti6Al4V Lattice Structures: Compression, Bending, and Fatigue

open access: yesAdvanced Engineering Materials, EarlyView.
In this experimental study, the mechanical properties of additively manufactured Ti‐6Al‐4V lattice structures of different geometries are characterized using compression, four point bending and fatigue testing. While TPMS designs show superior fatigue resistance, SplitP and Honeycomb lattice structures combine high stiffness and strength. The resulting
Klaus Burkart   +3 more
wiley   +1 more source

Heuristic Binary Search for Modulated Predictive Control

open access: yesIEEE Access
Predictive Control optimization often relies on exhaustive enumeration of voltage vectors within the finite control set. Using Virtual Voltage Vector strategies tend to increase the number of predictions to enhance dynamic and steady state performance ...
Rafael FIgueiredo   +3 more
doaj   +1 more source

Two-vector Dimensionless Model Predictive Control of PMSM Drives Based on Fuzzy Decision Making

open access: yesCES Transactions on Electrical Machines and Systems, 2022
Model predictive controls (MPCs) with the merits of non-linear multi-variable control can achieve better performance than other commonly used control methods for permanent magnet synchronous motor (PMSM) drives.
Nabil Farah   +3 more
doaj   +1 more source

Hysteresis-based design of dynamic reference trajectories to avoid saturation in controlled wind turbines [PDF]

open access: yes, 2016
The main objective of this paper is to design a dynamic reference trajectory based on hysteresis to avoid saturation in controlled wind turbines. Basically, the torque controller and pitch controller set-points are hysteretically manipulated to avoid ...
Acho Zuppa, Leonardo   +3 more
core   +2 more sources

EBSD Study of Creep‐Induced Lattice Misorientation in MgO‐Particle‐Reinforced Austenitic Steel Composites

open access: yesAdvanced Engineering Materials, EarlyView.
Creep experiments at 900°C on coarse‐grained steel‐ceramic composites containing recycled magnesia reveal that higher ceramic volume fractions significantly enhance the creep resistance. Detailed EBSD investigations identify subgrain formation in the steel matrix as the dominant deformation mechanism.
Moritz Müller   +6 more
wiley   +1 more source

Predictive Control Techniques for Switched Reluctance Motor: An Overview

open access: yesIEEE Access
The Switched Reluctance Motor (SRM) is a developing electric drive innovation that outperforms the Induction Motor (IM) and the Permanent Magnet Synchronous Motor (PMSM) in numerous industrial uses, including Electric Vehicles, HVAC Systems, and ...
A. Sadagopan   +4 more
doaj   +1 more source

Model-Free Parallel Predictive Torque Control Based on Ultra-Local Model of Permanent Magnet Synchronous Machine

open access: yesActuators, 2022
The finite control set model predictive torque control (FCS-MPTC) selects the optimal voltage vector (VV) by the composite cost function composed of torque and flux error, which makes it have a faster dynamic response than conventional control methods ...
Manping Lv   +5 more
doaj   +1 more source

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