Results 91 to 100 of about 2,128 (219)

A carrier pulse width modulation for asymmetric three-level NPC inverter

The three-level neutral point clamped (NPC) inverters are widely used in practice. One of nowadays research trends of multilevel inverter topologies has been reduction of switch number.
Cuong, Quoc Thai Lam, Nguyen, Nho Van
core   +1 more source

A MODIFIED VIRTUAL SPACE VECTOR MODULATION TECHNIQUE FOR Z-SOURCE NPC INVERTERS [PDF]

Carpathian Journal of Electrical Engineering, 2018
A modified virtual space vector modulation approach for the control of a Z-source neutral point clamped inverter is presented in this paper. This approach works perfectly for the traditional neutral point clamped inverter.
Francis EFFAH, Philip OKYERE, Patrick WHEELER, Alan WATSON, Jon CLARE   +4 more
doaj  

Analysis of DC-Link capacitor losses in three-level neutral point clamped and cascaded H-Bridge voltage source inverters

Loss estimation is a critical aspect of inverter design.The present work investigates the losses occurring in the DC-link capacitors of the three-phase three-level neutral point clamped and cascaded H-Bridge inverter topologies, by performing a harmonic ...
Sharkh, S. M., Orfanoudakis, G. I., Yuratich, M. A.   +2 more
core  

Hybrid Pulse Width Modulation for Improving Reliability of DC-Link Capacitors of NPC Inverter in Photovoltaic Systems

IEEE Access
Reliability improvement of the Photovoltaic (PV) inverter has a high potential for reducing the cost of PV energy. The DC-link capacitor is one of the main components influencing the reliability of PV inverter systems. Various pulse-width modulation (PWM)
Jae-Heon Choi, Ui-Min Choi, Frede Blaabjerg   +2 more
doaj   +1 more source

New Control Strategy of Three-Phase Five-Level NPC Rectifier -Inverter System for Induction Machine Drive

, 2012
This paper proposes a control strategy of a three –phase five-level double converter for induction motor drives. The converter consists of the five-level NPC rectifier, DC link, and the five-level NPC inverter.
Bachir Fiala, Guedouani, Rabia, E.M Berkouk, Boucherit, M.S., Berkouk, E.M, Fiala, Bachir, Rabia Guedouani, M.S. Boucherit   +7 more
core   +1 more source

Development of a grid emulator for network integration studies

, 2014
Includes bibliographical references.The economic and environmental side effects of fossil fuels have forced governments and authorities to investigate sustainable solutions. Main interest is focused on environment friendly benefits, provided by renewable
Khan, Akrama
core  

Control Scheme Influence on the Performance of Shunt Active Power Filter based on Five-level NPC Inverter in Steady and Transient Conditions

Algerian Journal of Signals and Systems
This paper presents an investigation on the performance of shunt active power filter (Shunt APF) systems based on five-level neural point clamped (NPC) inverter in steady and transient conditions adopting a fuzzy control scheme.
Salim CHENNAI
doaj   +1 more source

Neutral-point voltage control for single-phase three-level NPC inverter applying a novel switching method

, 2016
학위논문(석사)--아주대학교 일반대학원 :전자공학과,2016. 2제 1 장 서론 1 제 2 장 제안하는 스위칭 기법 4 2.1 3-레벨 인버터 특징 4 2.2 기존 스위칭 방법 6 2.3 새로운 스위칭 방법 8 2.4 기존 스위칭과 새로운 스위칭 방법의 분석 11 2.4.1 스위칭 손실 분석 11 2.4.2 THD (Total Harmonic Distortion) 분석 13 제 3 장 제안하는 중성점 전압 제어 ...
이승주
core  

Poster Sessions

HemaSphere, Volume 10, Issue S1, June 2026.
wiley   +1 more source

Thermal Optimized Modulation Method of Three-level NPC Inverter for 10 MW Wind Turbines under Low Voltage Ride Through

, 2012
The three-level neutral-point-clamped (3L-NPC) converter is a promising multilevel topology for use in the megawatts wind power generation system. However, the requirements for the grid side inverter under low-voltage ride through (LVRT) of power grid ...
Ma, Ke, Blaabjerg, Frede; id_orcid
core   +1 more source