Results 11 to 20 of about 631 (184)

A Hysteresis Space Vector PWM for PV Tied Z-Source NPC-MLI With DC-Link Neutral Point Balancing

open access: yesIEEE Access, 2021
The Photo-voltaic (PV) tied Z-source Neutral-point clamped multilevel inverter (Z-NPC-MLI) is used in solar grid connected applications due to its single stage conversion and better performance.
Suresh Kumar Annam   +2 more
doaj   +1 more source

Asymmetric Neutral Point Diode Clamped Topology with Reduced Component Count for Switched Reluctance Machine Drive

open access: yesEnergies, 2022
The Reduced Asymmetric Neutral Point Clamped converter topology for unipolar driven, multiphase switched reluctance machines is proposed in this paper. This topology shares similarities with the conventional NPC and Asymmetric-NPC topologies, however it ...
Pieter Antonie Scholtz   +1 more
doaj   +1 more source

Fault-Tolerant Control Strategy for Neutral-Point-Clamped Three-Level Inverter

open access: yesJournal of Control Science and Engineering, 2018
A fault-tolerant control technique is discussed for the Neutral-Point-Clamped (NPC) three-level inverter, which ensures that the NPC inverter operates normally even under device failures. A two-level leg is added to the NPC inverter; when the device open
Yanxia Shen   +3 more
doaj   +1 more source

A Varied VSVM Strategy for Balancing the Neutral-Point Voltage of DC-Link Capacitors in Three-Level NPC Converters

open access: yesEnergies, 2015
In the research field of multilevel converters, three-level NPC (neutral-point-clamped) converters, which unfortunately may cause the deviation of the neutral-point voltage of DC-link capacitors, are widely discussed.
Shi Weng Gui   +2 more
doaj   +1 more source

Adaptive perturb and observe maximum power point tracking with current predictive and decoupled power control for grid-connected photovoltaic inverters

open access: yesJournal of Modern Power Systems and Clean Energy, 2018
In order to improve maximum power point tracking (MPPT) performance, a variable and adaptive perturb and observe (P&O) method with current predictive control is proposed. This is applied in three-phase three-level neutral-point clamped (NPC) photovoltaic
Yong YANG, Huiqing WEN
doaj   +1 more source

Grid-Connected Solar PV System with Maximum Power Point Tracking and Battery Energy Storage Integrated with Sophisticated Three-Level NPC Inverter

open access: yesInternational Transactions on Electrical Energy Systems, 2023
In this research, a solar photovoltaic system with maximum power point tracking (MPPT) and battery storage is integrated into a grid-connected system using an improved three-level neutral-point-clamped (NPC) inverter.
D. Ravi Kishore   +6 more
doaj   +1 more source

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

open access: yesCarpathian 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   +4 more
doaj  

A New Bidirectional Three-phase Neutral Point Clamped (NPC) Grid-Connected Converter: Analysis and Simulation

open access: yesAnais do Simpósio Brasileiro de Sistemas Elétricos 2020, 2020
This paper deals with the theoretical development, analysis, and simulation of the new topology of three-phase NPC (Neural Point Clamped) converter. The proposed 6-kW three-phase converter is connected to a three-phase electrical network and due to its bidirectional characteristics can either send energy to the grid or receive it from the grid.
Christel E. G. Ogoulola   +6 more
openaire   +2 more sources

HERIC-Clamped and PN-NPC Inverters With Five-Level Output Voltage and Reduced Grid-Interfaced Filter Size

open access: yesIEEE Open Journal of Power Electronics, 2023
Transformerless grid-connected inverters with highly efficient and reliable inverter concept (HERIC) and positive-negative neutral point-clamped (PN-NPC) circuit configurations exhibit excellent performance in terms of overall efficiency, common-mode ...
Yaroslav Y. Syasegov   +6 more
doaj   +1 more source

Analysis, Design, and Performance Optimization of a Bidirectional Three-Level Neutral-Point-Clamped Dual-Bridge Series Resonant DC–DC Converter for Energy Storage Systems

open access: yesIEEE Open Journal of Power Electronics
In this paper, an isolated bidirectional three-level neutral-point-clamped dual-bridge series resonant converter (3L-NPC-DBSRC) is proposed for the wide-voltage range dc-dc applications in energy storage systems, which consists of a neutral-point-clamped
Song Hu   +7 more
doaj   +1 more source

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