Results 21 to 30 of about 4,874,982 (174)

Research on Space Vector Overmodulation Technology of Two-Level PWM Converters

open access: yesEnergies, 2022
In this paper, the characteristics of the voltage transfer ratio (VTR) and low-order harmonics of the major modern space vector overmodulation strategies for two-level PWM converters are discussed under different VTRs, and the complexity of the ...
Jin Zhou   +4 more
doaj   +1 more source

Performance Analysis of Symmetrical and Asymmetrical Configuration of Open-End Winding Induction Motor Drive Using Decoupled SVPWM Techniques [PDF]

open access: yesActa Electrotechnica et Informatica, 2017
In this article, space vector based decoupled PWM techniques are proposed for both symmetrical and asymmetrical configuration of open-end winding induction motor drive.
M. RANJIT   +2 more
doaj   +1 more source

Nonlinear Control of an Open-Loop Open-Winding Motor System with Modulated Converters [PDF]

open access: yesProblems of the Regional Energetics, 2017
Purpose of this work - to provide wider control opportunities for multiphase open-end winding motor drive by modification of basic scheme of space-vector pulse-width modulation (PWM).
Oleschuk V.I.
doaj  

Application of Barycentric Coordinates in Space Vector PWM Computations

open access: yesIEEE Access, 2019
This paper proposes the use of barycentric coordinates in the development and implementation of space-vector pulse-width modulation (SVPWM) methods, especially for inverters with deformed space-vector diagrams.
Pawel Szczepankowski, Janusz Nieznanski
doaj   +1 more source

Hybrid PWM Techniques for a DCM-232 Three-Phase Transformerless Inverter with Reduced Leakage Ground Current

open access: yesMicromachines, 2021
Pulse Width Modulation (PWM) strategies are crucial for controlling DC–AC power converters. In particular, transformerless inverters require specific PWM techniques to improve efficiency and to deal with leakage ground current issues.
Gerardo Vazquez-Guzman   +6 more
doaj   +1 more source

240$^\circ$-Clamped PWM Applied to Transformerless Grid Connected PV Converters With Reduced Common Mode Voltage and Superior Performance Metrics

open access: yesIEEE Open Journal of Power Electronics, 2022
Transformerless voltage source inverters (VSIs) are one of the popular topologies for photovoltaic (PV) grid-connected applications due to the lowest component count and simple design. Because of the absence of galvanic isolation in such systems, problem
Haleema Qamar   +3 more
doaj   +1 more source

Gait Analysis of Pak Biawak: A Necrobot Lizard Built using the Skeleton of an Asian Water Monitor (Varanus Salvator)

open access: yesAdvanced Robotics Research, EarlyView.
Pak Biawak, a necrobot, embodies an unusual fusion of biology and robotics. Designed to repurpose natural structures after death, it challenges conventional boundaries between nature and engineering. Its movements are precise yet unsettling, raising questions about sustainability, ethics, and the untapped potential of biointegrated machines.
Leo Foulds   +2 more
wiley   +1 more source

A unified analysis of DC link current in space-vector PWM drives [PDF]

open access: yes, 1997
A unified analysis of the DC link current in space-vector PWM drives, comprising induction motor, inverter and space-vector PWM scheme, is presented. The DC link current is investigated in a unified way, whether the inverter is operating at normal or ...
Chan, DTW, Chau, KT, Li, Y, Chan, CC
core   +1 more source

A Carrier-Based PWM Strategy Providing Neutral-Point Voltage Oscillation Elimination for Multi-Phase Neutral Point Clamped 3-Level Inverter

open access: yesIEEE Access, 2019
General pulse width modulation (PWM) model for multi-phase neutral point (NP) clamped (NPC) 3-level inverter (3LI) is described. A novel PWM strategy for N -phase NPC 3LI with unconditional NP voltage balance is proposed as well as its carrier-based ...
Weidong Jiang   +4 more
doaj   +1 more source

Compliant Pneumatic Feet with Real‐Time Stiffness Adaptation for Humanoid Locomotion

open access: yesAdvanced Robotics Research, EarlyView.
A compliant pneumatic foot with real‐time variable stiffness enables humanoid robots to adapt to changing terrains. Using onboard vision and pressure control, the foot modulates stiffness within each gait cycle, reducing impact forces and improving balance. The design, cast in soft silicone with embedded air chambers and Kevlar wrapping, offers durable,
Irene Frizza   +3 more
wiley   +1 more source

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