Results 51 to 60 of about 268 (142)

3D‐Printed Shark‐Inspired Soft–Hard Hybrid Underwater Robot With Buoyancy Control and Onboard Vision

open access: yesAdvanced Intelligent Systems, EarlyView.
A fully self‐contained shark‐inspired underwater robot is developed using 3D‐printed soft–hard hybrid structures, servo‐driven propulsion, and pump‐based buoyancy control. The platform achieves three‐dimensional locomotion and onboard vision‐based target tracking, offering a reproducible and accessible framework for biomimetic underwater robot research.
Shotaro Saito   +3 more
wiley   +1 more source

Efficiency-optimised modulation technique of three-level NPC inverter

open access: yesThe Journal of Engineering, 2018
The three-level NPC inverter has many advantages, such as the characteristics of high output power, low device stress, and low harmonic distortion of output waveform.
Ning Li   +3 more
doaj   +1 more source

Double star PM machine. Mathematical modelling, simulation and control [PDF]

open access: yes, 2016
LAUREA MAGISTRALEThe thesis work presented deals with electrical machine with phases greater than 3 and this thesis is presented especially with the approach to mathematically model a ‘Double Star Electrical Motor’.
SHABBIR, ARSLAN
core  

Robust Control Using a Matrix Converter to Enhance Wind Turbine Systems

open access: yesEnergy Science &Engineering, EarlyView.
This study uses a more efficient and effective solution to improve the operational performance of a wind turbine‐based power system. This system uses a doubly fed induction generator and relies on a matrix converter and fractional‐order proportional–integral controller.
Sihem Ghoudelbourk   +4 more
wiley   +1 more source

Analysis of capacitive discharges in motor bearings under different operation conditions

open access: yesIET Electric Power Applications
Despite being a well‐known problem, bearing faults are still one of the major challenges that the industry face. The growing use of voltage source inverters imposed the alertness of possible bearing damage due to their high‐frequency signals.
Sara Jammoul   +5 more
doaj   +1 more source

Seven-level inverter with switched capacitors

open access: yesThe Journal of Engineering, 2019
The seven-level (7L) inverter with a nearly sinusoidal output voltage is suitable for renewable energy conversion applications. A novel 7L inverter topology with switched capacitors is proposed here.
Xuezhi Wu   +5 more
doaj   +1 more source

AGING INVESTIGATION OF INVERTER-FED LOW VOLTAGE MOTOR WINDING INSULATION SUBJECTED TO HIGH DV/DT [PDF]

open access: yes, 2018
International audienceThe relevance of this paper determines by oncoming implementation of wide bandgap power semiconductors as SiC in inverters feeding motors.
Bolgova, Veronika   +3 more
core   +1 more source

Study & Analysis of Power Switches with reverse voltage blocking capability [PDF]

open access: yes, 2021
This thesis hovers over the basic introduction to Silicon Carbide (Metal Oxide Semiconductors Field-effect Transistor) MOSFET switches and the circuit designing of Current Source Invertors using SiC MOSFET switches.
Mughal, Babur Zaman Khan
core  

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

open access: yesEnergy 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   +7 more
wiley   +1 more source

Comparative research of harmonic suppression algorithm of the three-level NPC converter

open access: yesThe Journal of Engineering, 2018
The three-level NPC converter is an effective solution to medium-voltage and high-power electronic converters. Modulation strategy is one of research focus of the three-level NPC converter.
Li Ning, Gao Tong, Zhang Hui, Yang Ping
doaj   +1 more source

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