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A hierarchical adaptive optics strategy for three-photon imaging during behavior

Atilgan H, Wang J, Hu Q, Tan S, Russell B, Bruno RM, Booth MJ, Lak A.   +7 more
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Sensorless BLDC Control Method

2020 IEEE 26th International Symposium for Design and Technology in Electronic Packaging (SIITME), 2020
This paper proposes a new control method for BLDC motors using sensorless trapezoidal control capable of regenerative braking, designed to be used on low-power and moderate computational power microcontrollers. It exhibits good performance on systems where the load does not have abrupt changes over time and the requirements for efficiency are not very ...
A. Zirne, G. Barbulescu, M. Paunoiu, C. Pop, N. Codreanu, M. Enachescu   +5 more
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Sensorless Drive Control

IFAC Proceedings Volumes, 1989
Abstract The digital control of electrical drives by microprocessors requires special control concepts which are formed for digital signal processing. By implementing the well-known control strategies in the frequency domain and in the state space there are always two fundamental disadvantages; first the nonlinearities of a drive system cannot be ...
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Sensorless control for synchronous motors

2010 International Conference on Autonomous and Intelligent Systems, AIS 2010, 2010
Permanent magnet synchronous motors are used in many industrial applications because they have several inherent advantages. However, information about the rotor position is necessary even to be able to control drive speed. Conventional speed and position detection uses encoder and resolver.
Libor Vesely, Pavel Zbranek
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Sensorless control for linear compressors

International Journal of Applied Electromagnetics and Mechanics, 2006
A closed-loop sensorless stroke control system for a linear compressor has been designed. The motor parameters are identified as a function of the piston position and the motor current. They are stored in ROM table and used later for the accurate estimation of piston position. Also it was attempted to approximate the identified motor parameters to the
Sung, Ji Won, Lee, Chel Woong, Kim, Gyu-Sik, Lipo, T.A., Won, Chung-Yuen, Choi, Sewan   +5 more
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VHFIM sensorless control of PMSM

2010 IEEE International Symposium on Industrial Electronics, 2010
The paper deals with combined real-time model of PM synchronous motor for sensorless position control. Real-parametric-and real-time model could be ideal tools for both control and simulation of the PMSM position drive. Unfortunately that idealized model doesn't exist so far.
Viktor Bobek, Branislav Dobrucky, Rastislav Pavlanin, Peter Sevcik   +3 more
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Sensorless control of PMSM drives

2019
When compared to induction motors, permanent magnet synchronous motors (PMSMs) feature higher torque density, improved efficiency and increased constant power speed range. These distinct advantages have resulted in PMSMs being employed in a myriad of industrial applications. Traditionally, the open -loop V/f control scheme has been the preferred method
Gilbert Foo, null Zhang Xinan, Muhammed Fazlur Rahman   +2 more
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Sensorless Real Time Control (RTC)

3rd IEEE International Symposium on Sensorless Control for Electrical Drives (SLED 2012), 2012
A new Brushless Real Time Control (RTC) method for electric motors or generators is an evolution in Sensor-less control. Very different from any derivative of Field Oriented Control (FOC), RTC uniquely eliminates all control uncertainty, including the extraneous shaft connected resolver for the specific purpose of measuring speed-position (i.e., Sensor-
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Pseudo Sensorless Control of PMSM

2006 12th International Power Electronics and Motion Control Conference, 2006
Pseudo sensorless permanent magnet synchronous motor torque and flux tracking control algorithm is presented. Proposed approach addresses the problem of operation at zero, low and up to nominal speed. The information of flux is extracted using a nonlinear closed loop rotor flux observer combined with the information obtained from hall sensors, which ...
Evgen Urlep, Janko Horvat, Karel Jezernik   +2 more
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