Results 51 to 60 of about 28,058 (211)
Compensation for rotor position estimation error due to cross-coupling magnetic saturation in signal injection based sensorless control of PM brushless AC motors [PDF]
, 2007 This paper proposes a simple method for reducing the rotor position estimation error caused by cross-coupling magnetic saturation between the d- and q-axes when signal injection based sensorless control is applied to a brushless AC (BLAC) motor.
Bingham, Chris, Howe, D, Li, Y, Zhu, Z Q
core +1 more source
Advanced Intelligent Systems, EarlyView.Shape memory alloy wires exhibit thermally induced phase changes that generate actuation strain and resistance variations enabling self‐sensing. However, hysteretic electromechanical behavior complicates accurate state estimation. This paper presents an artificial in‐based self‐sensing method to reconstruct SMA actuator position in real time, achieving
Krunal Koshiya +2 more
wiley +1 more source
CES Transactions on Electrical Machines and SystemsSensorless control of switched reluctance motors (SRMs) often requires a hybrid mode combining low-speed pulse injection methods and high-speed model-based estimation. However, pulse injection causes unwanted audible noises and torque ripples.
Zifeng Chen +5 more
doaj +1 more source
Sensorless multi-loop control of phase-controlled series-parallel resonant converter [PDF]
, 2014 This paper proposes a multi-loop controller for the phase-controlled series-parallel resonant converter. Output voltage is solely measured for control and inner loop is used to enhance closed loop stability and dynamic performance compared to single-loop
Aboushady, A.A., Ahmed, K.H.
core +2 more sources
Voltage Sensorless Grid-Forming Power Converters
2020 IEEE 21st Workshop on Control and Modeling for Power Electronics (COMPEL), 2020 During the years, synchronization systems in power converter control has been mainly used for estimating the phase angle and the magnitude of the grid voltage, this estimated information is usually used for droop control strategies to ensure power sharing among power converters.
Tarraso Martínez, Andrés +3 more
openaire +1 more source
Are seizure forecasts and cycles better than chance? What chance?
Epilepsia, EarlyView.Abstract Objective There is a growing synergy between the lines of research on cycles in epilepsy and seizure forecasting. It has been conjectured, for instance, that incorporating information about significant seizure cycles into forecasting algorithms can lead to a better‐than‐chance forecasting performance.
Ralph G. Andrzejak +4 more
wiley +1 more source
Robust sensorless control of BLDC Motor using second derivative function of the sum of terminal voltages [PDF]
Serbian Journal of Electrical Engineering, 2013 This paper proposes a new sensorless control method for the speed and position control of a BLDC Motor. This sensorless drive technique calculates the commutations instants (duration of commutation) by deriving the sum of the terminal voltages ...
Boughaba Abdelali +2 more
doaj +1 more source
Improved speed estimation in sensorless PM brushless AC drives [PDF]
, 2002 The application of flux-observer-based sensorless control to permanent-magnet brushless AC motor drives is described. Current methods of speed estimation are assessed, both theoretically and experimentally, and an improved method, which combines the best
Howe, D., Shen, J.X., Zhu, Z.Q.
core +1 more source
Design of a Hydroelectronic Solar‐Tracking System for Solar Panels
Energy Science &Engineering, EarlyView.A prototype of a passive solar‐tracking system utilizing buoyant force based on water level was developed, and its MATLAB/Simulink model was implemented. This study is expected to encourage researchers to design solar‐tracking mechanisms using metals with different thermal expansion coefficients, air, oil, and other fluids. ABSTRACT This study presents
Ufuk Süğürtin, Türker Fedai Çavuş
wiley +1 more source
Cost-Effective Predictive Flux Control for a Sensorless Doubly Fed Induction Generator
IEEE Access, 2019 The paper introduces a cost effective predictive flux control (PFC) approach for a sensorless doubly fed induction generator (DFIG). The base operation of the proposed PFC depends on controlling the rotor flux (α-β) components using a cost ...
Mahmoud A. Mossa +3 more
doaj +1 more source