Results 31 to 40 of about 21,021,184 (254)

Robust Speed Control of PMSM Using Sliding Mode Control (SMC)—A Review

open access: yesEnergies, 2019
Permanent magnet synchronous motors (PMSMs) are known as highly efficient motors and are slowly replacing induction motors in diverse industries. PMSM systems are nonlinear and consist of time-varying parameters with high-order complex dynamics.
Fardila Mohd Zaihidee   +2 more
semanticscholar   +1 more source

TF-DMB: A traffic flow theory-based dynamic multi-hop broadcast protocol

open access: yesInternational Journal of Distributed Sensor Networks, 2017
In order to ensure traffic safety, the emergency warning message should be transmitted quickly and reliably in vehicular ad hoc networks by multi-hop broadcast.
Weiguang Ding, Hao Wu, Jin Wang
doaj   +1 more source

Application of Fractional Order Sliding Mode Control for Speed Control of Permanent Magnet Synchronous Motor

open access: yesIEEE Access, 2019
This paper investigates speed regulation of permanent magnet synchronous motor (PMSM) system based on sliding mode control (SMC). Sliding mode control has been vastly applied for speed control of PMSM.
F. M. Zaihidee, S. Mekhilef, M. Mubin
semanticscholar   +1 more source

Dynamic Behaviour of a Conveyor Belt Considering Non-Uniform Bulk Material Distribution for Speed Control

open access: yesApplied Sciences, 2020
For the conveyor belt, variable material flow influences the energy efficiency of the speed control technology significantly. The fluctuation of material flow on the conveyor belt will lead to the detrimental vibrations on both the belt and the conveyor ...
Fei Zeng, Cheng Yan, Qing Wu, Tao Wang
doaj   +1 more source

A Novel Step Current Excitation Control Method to Reduce the Torque Ripple of Outer-Rotor Switched Reluctance Motors

open access: yesEnergies, 2022
Featured in low-speed and high-torque operation, outer-rotor switched reluctance motors (OSRMs) have the potential to be widely deployed in low-speed commuter and logistics vehicle applications.
Jieyun Wang   +5 more
doaj   +1 more source

Model Predictive Direct Speed Control With Torque Oscillation Reduction for PMSM Drives

open access: yesIEEE Transactions on Industrial Informatics, 2019
Servo drives require high dynamics and reliability on speed control. Conventional cascade linear controllers suffer from the proportional-integral parameters tuning work and low dynamic response, due to their cascaded structure.
Ming Liu   +4 more
semanticscholar   +1 more source

Design of High-Efficiency Jet Lift Enhancement for Flaps Under Propeller Slipstream Influence

open access: yesAerospace
Both propeller slipstream and flap jet flow can significantly increase the aircraft lift coefficient. To establish design principles for efficient lift enhancement via jet flow under the influence of slipstream, wind tunnel experiments are conducted on a
Yan Shao   +5 more
doaj   +1 more source

Traffic Regulation via Controlled Speed Limit [PDF]

open access: yesSIAM Journal on Control and Optimization, 2017
We study an optimal control problem for traffic regulation via variable speed limit. The traffic flow dynamics is described with the Lighthill-Whitham-Richards (LWR) model with Newell-Daganzo flux function. We aim at minimizing the $L^2$ quadratic error to a desired outflow, given an inflow on a single road.
Delle Monache, Maria Laura   +2 more
openaire   +3 more sources

Numerical Study on the Influence of Suction near Expansion Corner on Separation Bubble

open access: yesAerospace
Suction is an important control method in the shock wave and boundary layer interaction (SWBLI). Aimed at the problem of separation bubbles induced at the expansion corners, this study investigates the influence of suction on both the dimensions of ...
Yaowen Zhang   +3 more
doaj   +1 more source

Spatial flocking: Control by speed, distance, noise and delay [PDF]

open access: yes, 2017
Fish, birds, insects and robots frequently swim or fly in groups. During their 3 dimensional collective motion, these agents do not stop, they avoid collisions by strong short-range repulsion, and achieve group cohesion by weak long-range attraction.
Farkas, Illes J., Wang, Shuo-Hong
core   +4 more sources

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