Results 111 to 120 of about 7,309,117 (293)

Study on Electrical Machine Phase Current Reconstruction Based on a DC-Bus Current Sensor

CES Transactions on Electrical Machines and Systems
In the field of high-performance motor control, accurate sampling of motor currents is essential for precise control and stability. To achieve reliable measurement of a motor's three-phase currents, it is typically necessary to install at least two high ...
Yu-Chao Fang, Yun-Chong Wang, Zhang-Hao Huang, Yue-Sheng Qi, Jian-Xin Shen   +4 more
doaj   +1 more source

A Comparative Study of Sinusoidal PWM and Space Vector PWM of a Vector Controlled BLDC Motor [PDF]

, 2020
: This paper focuses on the vector control of a BLDC motor with two different concepts of Pulse Width Modulation-the Sinusoidal PWM and the Space Vector Modulation strategy.
Lydia Anu Jose, Asst Professor, K B Karthikeyan   +2 more
core  

Distributed Micropneumatic Sensors for Soft Robots to Detect Touch and Pose

Advanced Robotics Research, EarlyView.
Soft robots need integrated touch and pose sensing for safe and reliable operation. This work presents a three‐fingered soft gripper with 18 micropneumatic sensors made from the same materials as its pneumatic actuators. By measuring airflow resistance changes in deforming microchannels of the sensors, finger pose and contact are detected, enabling ...
Vilma Lampinen, Mika Pihlajamäki, Md Nazmul Huda, Veikko Sariola   +3 more
wiley   +1 more source

XeraBorg: Neural Control of Tail‐Flick Escape for Backward Propulsion in Cyborg Crayfish

Advanced Robotics Research, EarlyView.
This work presents the first controlled tail‐flick propulsion method for the cyborg Cherax quadricarinatus. Comprehensive experiments establish a foundational framework for using the crayfish's natural escape mechanism as a locomotion strategy, expanding its potential as an underwater and amphibious mobile robot.
H. Nhan Le, Oscar J. Davis, Lachlan Fitzgerald, Robbie Wilson, Christofer Clemente, P. Ross McAree, T. Nho Do, T. Thang Vo‐Doan   +7 more
wiley   +1 more source

Multi-phase space vector pulse width modulation: Applications and strategies

RE&PQJ
Multi-phase machines and drives is a topic of growing relevance in recent years, and it presents many challenging issues that still need further research. This is the case of multi-phase space vector pulse width modulation (SVPWM), which shows not only more space vectors than the standard three-phase case, but also new subspaces where the space vectors
null Mario J. Duran, null F. Barrero, null S. Toral   +2 more
openaire   +1 more source

Minimum switching loss pulse width modulation for reduced power conversion loss in reactive power compensators

, 2014
Advanced bus-clamping switching sequences, which employ an active vector twice in a subcycle, are used to reduce line current distortion and switching loss in a space vector modulated voltage source converter.
Narayanan, Gopalaratnam, Prasad, Jaldanki Sreenivasa Siva   +1 more
core   +1 more source

Laser‐Induced Ultrafast Magnetic Phase Transition in 2D Van Der Waals Antiferromagnetic Heterostructures

Advanced Science, EarlyView.
In this work, ultrafast laser‐induced spin transfer and spin relaxation dynamics in 2D van der Waals antiferromagnetic CrI3/CrGeTe3 heterostructures are investigated. Laser excitation is demonstrated to induce pronounced interlayer nonequilibrium spin dynamics and ultrafast magnetic moment reconstruction, driving a transition from an antiferromagnetic (
Yang Wu, Fulu Zheng, San‐Dong Guo, Thomas Frauenheim, Zhaobo Zhou, Junjie He   +5 more
wiley   +1 more source

A neutral-point potential balance control strategy for three-level inverter based on VSVPWM

Journal of Measurement Science and Instrumentation, 2018
The topology of diode neutral-point-clamped（NPC）three-level inverter is prone to neutral-point potential offset.When the sum of three-phase current is zero,the virtual space vector pulse width modulation（VSVPWM）scheme does not cause the neutral-point ...
CHENG Dong-liang, WANG Xiao-peng, ZHU Tian-liang, MA Wen-gang   +3 more
doaj  

Direct Torque Control of Bearingless Induction Motor Using Space Vector Pulse Width Modulation Based on Fuzzy Adaptive Control

, 2011
This paper presents a new strategy of direct torque controller for bearingless induction motor using space vector pulse width modulation based on fuzzy adaptive control.
Jin Wei Zhou, Xian Xing Liu, Luo Fei Wan, Zheng Qi Wang   +3 more
core   +1 more source

A Soft, Flexible Implant for Wireless Photothermal–Pyroelectric Neurostimulation

Advanced Science, EarlyView.
A replication strategy is used to enlarge the exposed surface area of barium titanate within flexible films with embedded carbon nanotubes, enabling efficient photothermal‐pyroelectric stimulation. Polar crystalline nanosheets show superior performance in guiding neural progenitor cells toward neuronal differentiation.
Jiang Wu, Minmin Mao, Beltzane Garcia Cirera, Hao Ye, Xiangzhong Chen, Josep Puigmartí‐Luis, Ni Qin, Salvador Pané   +7 more
wiley   +1 more source