Results 181 to 190 of about 1,230,070 (216)

Simultaneous phase and amplitude modulation for dual-sensitivity profilometry of discontinuous objects

Journal of the Optical Society of America A, 2022
Fringe projection profilometry (FPP) is a well-known technique for digitizing solids. In FPP, straight fringes are projected over a digitizing solid, and a digital camera grabs the projected fringes. The sensitivity of FPP depends on the spatial frequency of the projected fringes.
Manuel Servin, Gonzalo Paez, Moises Padilla, Guillermo Garnica   +3 more
openaire   +2 more sources

Minimum Voltage Operation of Cascaded H-Bridge StatComs Using Discontinuous Modulation

IEEE transactions on power electronics
Operating cascaded H-bridge (CHB) static compensators (StatCom) at low dc capacitor voltages reduces voltage stress on submodule capacitors and switching semiconductors, resulting in enhanced system reliability and reduced power loss.
Qingxiang Liu, Ezequiel Rodriguez, Yu Zeng, G. Farivar, C. Townsend, Josep Pou   +5 more
semanticscholar   +1 more source

A Novel Discontinuous Modulation Strategy With Reduced Common-Mode Voltage and Removed DC Offset on Neutral-Point Voltage for Neutral-Point-Clamped Three-Level Converter

IEEE transactions on power electronics, 2019
In this paper, a novel discontinuous pulsewidth modulation (DPWM) modulation strategy for a neutral-point-clamped (NPC) three-level converter (TLC) is proposed to reduce the switching loss, reduce common-mode voltage (CMV), and remove dc offset from the ...
Jinping Wang, Fei Zhai, Jianing Wang, Weidong Jiang, Jinsong Li, Laibao Li, Xinmei Huang   +6 more
semanticscholar   +1 more source

Thermal optimized discontinuous modulation strategy for three phase impedance source inverter

, 2020
A novel space vector modulation (SVM) strategy called maximum-boost discontinuous SVM (MBDSV) is proposed in this paper to reduce the thermal stress of three phase impedance source inverters (ISI).
Ping Liu, Jie Xu, Chunming Tu
semanticscholar   +1 more source

Origin-shifted multilevel discontinuous pulse width modulation

The Fifth International Conference on Power Electronics and Drive Systems, 2003. PEDS 2003., 2004
Pulse width modulation of two-level power converters is presently well established with most reported strategies focusing on the minimisation of line voltage harmonic distortion. For multilevel inverter modulation, additional performance merits can be achieved through the proper selection of available redundant switching states. This paper presents the
P.C. Loh, G.H.H. Pang
openaire   +1 more source

An Improved Discontinuous Space Vector Modulation for a Three-Phase Z-Source Inverter With a Modified Reference

IEEE Journal of Emerging and Selected Topics in Power Electronics, 2022
In this article, a new control strategy, based on the improved discontinuous space vector modulation is proposed to control a three-phase $Z$ -source inverter.
Moufek Khelifi, O. Benzineb, E. Berkouk, Asma Behlouli, Fares Baatouche   +4 more
semanticscholar   +1 more source

Discontinuous Modulation of Interleaved Parallel NPC Inverters with Reduced Circulating Current

European Conference on Cognitive Ergonomics, 2019
Parallel inverters are generally used in medium-and high-power applications. The interleaved operation of such topologies lead to reducing the output filter size.
Anatolii Tcai, S. Pugliese, Marco Liserre   +2 more
semanticscholar   +1 more source

An Improved Discontinuous Space Vector Modulation for Z-Source Inverter With Reduced Power Losses

IEEE Journal of Emerging and Selected Topics in Power Electronics, 2021
This article proposes a control strategy for a three-phase Z-source inverter (ZSI) using a modified discontinuous space vector modulation. The main advantages of the proposed control strategy are the enhanced output power quality and the compromise in ...
Ibtissam Chaib, E. Berkouk, J. Gaubert, M. Kermadi, N. Sabeur, S. Mekhilef   +5 more
semanticscholar   +1 more source

Multiphase multi-inverter drive with discontinuous synchronized modulation

2012 15th International Power Electronics and Motion Control Conference (EPE/PEMC), 2012
Algorithms of discontinuous synchronized pulsewidth modulation (PWM), including combined schemes of discontinuous PWM, have been applied for synchronous control of four inverters feeding six-phase drive on the base of asymmetrical induction motor which has two sets of windings spatially shifted by 30 electrical degrees.
V. Oleschuk, R. Gregor, F. Barrero
openaire   +1 more source

Reduction Method of Circulating Current in Parallel Three-Level Inverters Using Modified Discontinuous Pulse-Width Modulation Based on Interleaving Scheme

IEEE transactions on power electronics
This article presents a reduction method of circulating current in parallel three-level inverters using modified discontinuous pulse-width modulation (DPWM) based on an interleaving scheme.
Hyeree Choi, Kyo-Beum Lee
semanticscholar   +1 more source