Results 61 to 70 of about 28,429 (228)

Sensorless stabilization of bounce juggling [PDF]

IEEE Transactions on Robotics, 2006
The paper studies the properties of a sinusoidally vibrating wedge billiard as a model for 2-D bounce juggling. It is shown that some periodic orbits that are unstable in the elastic fixed wedge become exponentially stable in the nonelastic vibrating wedge.
Ronsse, Renaud, Lefèvre, Philippe, Sepulchre, Rodolphe   +2 more
openaire   +2 more sources

Disturbance‐Resilient Voltage/Power‐Quality Management for Islanded Inverters Using Self‐Tuning Type‐3 Fuzzy Controller

Energy Science &Engineering, EarlyView.
An adaptive fuzzy controller using an interval type‐3 fuzzy logic system replaces the SMC switching term to mitigate chattering while preserving global stability for islanded inverters. Simulations show lower THD, greater robustness to disturbances and parameter variations, and improved voltage‐tracking accuracy, with applicability to other uncertain ...
Man‐Wen Tian, Jun‐Bo Mao, Nurkhat Zhakiyev, Didar Yedilkhan, Ruslan Omirgaliyev, Du Changdong, Amirhossein Khosravi Sarvenoee, Ardashir Mohammadzadeh   +7 more
wiley   +1 more source

Euler-Lagrange models with complex currents of three-phase electrical machines and observability issues [PDF]

, 2009
A new Lagrangian formulation with complex currents is developed and yields a direct and simple method for modeling three-phase permanent-magnet and induction machines. The Lagrangian is the sum a mechanical one and of a magnetic one.
Basic, Duro, Malrait, Francois, Rouchon, Pierre   +2 more
core   +3 more sources

A Sensorless Brushless DC Motor System.

IEEJ Transactions on Industry Applications, 1991
AbstractThis paper describes a brushless dc motor system without position or speed sensor. The brushless motor consists of a permanent magnet synchronous motor and a voltage‐source inverter capable of controlling the amplitude and frequency of voltage.
Satoshi Ogasawara, Kazuto Suzuki, Hirofumi Akagi   +2 more
openaire   +2 more sources

A Comprehensive Multistage Average Controller for Trajectory Tracking in Solar‐Powered Mobile Robots: Analysis of Actuator‐Driver and Power Stage Integration

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT This work addresses the challenge of bidirectional trajectory tracking in solar‐powered wheeled mobile robots (WMRs), considering the mechanical structure, actuator‐driver, and power stage subsystems. Notably, this is the first study to explicitly model and control the actuator‐driver subsystem within this context. The proposed solution relies
Benjamin Natanael Santiago‐Nogales, Julio Cesar Ordaz‐Dehesa, Ramón Silva‐Ortigoza, Erik Reyes‐Reyes, J. Martín Alba‐Martínez, Juan Eduardo Velázquez‐Velázquez, José Rafael García‐Sánchez, Magdalena Marciano‐Melchor, Hind Taud   +8 more
wiley   +1 more source

Research on Displacement Sensorless Control for Bearingless Synchronous Reluctance Motor Based on the Whale Optimization Algorithm–Elman Neural Network

Actuators
The unique structure of bearingless motors requires extra displacement sensors to monitor rotor movement, unlike conventional synchronous motors. However, this requirement inevitably escalates the cost and size of the motor. To address these issues, this
Enxiang Xu, Ruijie Zhao
doaj   +1 more source

Induction Motor Control Didactic Set-up Using Sensorless And Sliding Mode Dtc Strategy

Eletrônica de Potência, 2008
A three-phase induction motor direct torque control laboratory set-up for simulation and experimental activities is presented in this paper. It includes sliding-mode controllers and uses a sensorless method to estimate rotor speed. The objective of this
Marcos Vinicius Lazarini, Ernesto Ruppert Filho   +1 more
doaj   +1 more source

Wide-Speed Range Sensorless Control of an IPM Motor for Multi-Purpose Applications

Inventions, 2020
In a growing number of battery-driven applications the need of removing any position and speed transducer is taking over due to space, cost and mechanical reliability constraints, further than making the installation easier as requiring less wiring. This
Maria Laura Bacci, Ferdinando Luigi Mapelli, Stefano Mossina, Davide Tarsitano, Michele Vignati   +4 more
doaj   +1 more source

On the stator flux linkage estimation of an PMSM with extended Kalman filters [PDF]

, 2010
The demand for drives with high quality torque control has grown tremendously in a wide variety of applications. Direct torque control (DTC) for permanent magnet synchronous motors can provide this accurate and fast torque control.
Boel, René, Melkebeek, Jan, Vyncke, Thomas   +2 more
core   +1 more source

Online Sensorless Induction Motor Temperature Monitoring

IEEE Transactions on Energy Conversion, 2010
A sensorless internal temperature monitoring method for induction motors is proposed in this paper. This method can be embedded in standard motor drives, and is based on the stator windings resistance variation with temperature. A small AC signal is injected to the motor, superimposed to the power supply current, in order to measure the stator ...
Sonnaillon, Maximiliano O., Bisheimer, Guillermo, de Angelo, Cristian Hernan, Garcia, Guillermo   +3 more
openaire   +2 more sources