Results 91 to 100 of about 5,081,374 (170)

Determination of maximum neutral point current injection limits in a three-phase neutral-point-clamped converter

open access: yes, 2020
The neutral-point-clamped (NPC) converter is nowadays widely used in the industry. The main features of the NPC converter are: (1) The high quality ac voltages that the converter can produce thanks to its capability to generate three voltage levels at ...
Jiang, Zhuolin
core  

Thermal Analysis of Five-Level Flying Capacitor Active Neutral Point Clamped Converter and Dual Flying Capacitor Active Neutral Point Clamped Converter [PDF]

open access: yes, 2015
Derived from classic DC-AC multilevel converters, hybrid multilevel converters can combine distinct advantages, thus receiving increasing attention for their widespread industrial applications recently.
Ma, Yiming
core  

DC-link voltage ripple compensation for multilevel active-neutral-point- clamped converters operated with SHE-PWM

open access: yes, 2012
This paper presents a dc-link voltage ripple compensation method for flying-capacitor (FC)-based active neutral- point-clamped multilevel converters operating under selective harmonic elimination pulsewidth modulation.
Sridhar Pulikanti (20124879)   +2 more
core   +1 more source

A New N-Level Inverter Based on Z-NPC

open access: yesIranian Journal of Electrical and Electronic Engineering, 2017
First of all, in this paper, the topology and operation of the three-phase three-level Z-source inverter based on neutral-point-clamped (Z-NPC) are studied.
E. Babaei, T. Ahmadzadeh
doaj  

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

open access: yesJournal 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   +3 more
doaj  

Enhanced Buck-Boost Three-Level Neutral-Point-Clamped Inverters

open access: yes, 2009
In traditional three-level neutral-point-clamped (NPC) inverters, a major issue is capacitor voltage imbalance, which results in low order harmonics. The compensation of the capacitor voltages often require additional control complexity, which cannot be ...
Gao, F.   +7 more
core   +1 more source

A generalized natural balance model and balance booster filter design for three-level neutral-point-clamped converters

open access: yes, 2015
Three-level neutral point clamped (NPC) inverters exhibit a natural balancing property that can self-regulate the intermediate neutral point voltage to half the overall dc-link voltage.
Donald Grahame Holmes (18043990)   +2 more
core  

Layout of Laminated Bus Bar for Diode Neutral Point Clamped Three-level Inverter

open access: yesKongzhi Yu Xinxi Jishu, 2014
Based on the design requirements of low inductance for diode neutral point clamped(NPC) inverter, it analyzed forced commutation operation modes of the inverter’s main circuit, described a layout theory of low inductance laminated bus bar and presented 3
doaj  

Comparison between Cascaded H-Bridge and Neutral Point Clamped Topologies in Medium-Voltage Systems

open access: yes
Medium voltage motor drives (MVD) come in various topologies that allow designers to choose the best option for their application based on technical and economic considerations.
KAÇAR, FIRAT   +2 more
core   +1 more source

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