Results 61 to 70 of about 5,969,025 (144)

VSC transmission system using flying capacitor multilevel converters and hybrid PWM control [PDF]

, 2007
A high-voltage direct current (HVDC) transmission system based on three-level flying capacitor (FC) multilevel converters with hybrid pulse-width modulation (PWM) is presented in this paper.
Agelidis, V.G., Xu, L.
core   +1 more source

DC Bus Control of Back-to-Back Connected Two-Level PWM Rectifier-Five-Level NPC Voltage Source Inverter to Torque Ripple Reduction in Induction Motor

MATEC Web of Conferences, 2015
This paper proposes a regulation method of back-to-back connected two-level PWM rectifier-five-level Voltage Source Inverter (VSI) in order to reduce the torque ripple in induction motor.
Abdelkrim Thameur, Benamrane Karima, Bezza Badreddine   +2 more
doaj   +1 more source

Modeling, Analysis and Evaluation of Modified Model Predictive Control Method for Parallel Three-Level Simplified Neutral Point Clamped Inverters

IEEE Access, 2019
Parallel three-level simplified neutral point clamped inverters (3L-SNPCIs) are applied in this paper because of fewer switching devices, low harmonic, larger power capacity and more flexibility.
Fei Wang, Zhijun Li, Xiangrong Tong, Lei Chen   +3 more
doaj   +1 more source

Control directo de potencia de convertidores electrónicos conectados a la red [PDF]

, 2007
Los convertidores electrónicos de potencia se han consolidado como un elemento fundamental en los sistemas eléctricos, ya que hacen posible una transmisión más flexible de la potencia por el sistema eléctrico y pueden actuar como compensadores.
Eloy-García Carrasco, Joaquín
core   +1 more source

A new step-up voltage balancing circuit for neutral-point-clamped multilevel inverter

, 2018
This paper introduces a new voltage balancing circuit for Neutral-Point-Clamped (NPC) Multilevel Inverter (MLI). The proposed circuit consists of switched-capacitors network which can easily balance the NPC-MLI by using proper switching state in carrier ...
A Taghvaie (13381440), S Saha (5006636), Enamul Haque (13069056), MA Mahmud (9864944)   +3 more
core  

A Neutral Point Voltage Balancing Method for Multi-Level GTO Inverters

, 2006
The balancing problem of the DC-link capacitor voltage is inherent in the NPC inverter. It is extremely important to keep the upper and lower DC-link capacitor voltages balanced to guarantee the three level operation of the inverter.
Lazhar Ben-Brahim, Ben-Brahim, Lazhar
core   +1 more source

A novel carrier interleaved PWM method for four-level nested neutral-point-clamped inverters

iEnergy
The four-level nested neutral-point-clamped (4L-NNPC) inverter is a competitive topology among the various medium-voltage multilevel converters, and its main issue is flying-capacitor voltage unbalance.
Wei Zhou, Jupeng Pang, Mingzhe Wu, Chao Wang, Kui Wang, Yongdong Li   +5 more
doaj   +1 more source

The DC Voltage Balance Strategy Based on Model Predictive Control with a Smooth Switching Sequence in Three-Phase 3LNPC-CR

Machines
The three-level neutral-point-clamped cascaded rectifier (3LNPC-CR) is a key component in power electronic transformers (PET) due to its high efficiency and modular configuration.
Xu Peng, Hang Li, Lu Liu, Xiaohan Liu, Siqi An, Weidong Peng   +5 more
doaj   +1 more source

Simple three-level neutral point voltage balance control strategy based on SVPWM [PDF]

, 2013
The unbalance of the neutral point voltage is an inherent problem of three-level neutral-point-clamped (NPC) inverter, the effect of neutral point voltage balancing which is caused by voltage vector is analyzed, and the relationship of the voltage offset
Bo, G., Yi, Q., Shanmei, Ch.
core  

A Shared-Leg NPC (SLNPC) Inverter for HV Three Phase Switched Reluctance Motor Drives

IEEE Open Journal of Power Electronics
This paper presents a cost-effective three-level shared-leg neutral-point diode-clamped (SLNPC) inverter for three-phase switched reluctance motor (SRM) drives. By sharing inverter legs between adjacent phases, the proposed topology significantly reduces
Ali Yousefi-Darani, Mehdi Narimani
doaj   +1 more source