Results 11 to 20 of about 52,716 (352)
IEEE transactions on power electronics, 2022 In this article, a virtual space vector based overmodulation algorithm is presented for three-level neutral-point (NP) clamped converters in high-speed aerospace motor drives.
Feng Guo +6 more
semanticscholar +1 more source
Analytical Modeling of Neutral Point Current in T-type Three-level PWM Converter
Energies, 2020 Since a T-type three-level PWM converter has several intrinsic advantages, it has been researched for various applications such as grid-connected converter systems.
Kui-Jun Lee
doaj +1 more source
Kongzhi Yu Xinxi Jishu, 2023 The neutral point clamped (NPC) three-level dual-active bridge (DAB) converter can be applied at higher voltage levels and in a wider operating range than the traditional DAB converter, and therefore it is more promising in future applications.
LIU Chao, LI Chi
doaj +3 more sources
A Model-Free Capacitor Voltage Balancing Method for Multi-Level DAB Converters [PDF]
, 2023 Capacitor voltage balancing is of importance in the neutral-point-clamped based dual-active-bridge converters. Most of traditional voltage balancing methods adopt the transformer current models in the balancing process, as the direction of the neutral ...
Blaabjerg, Frede +3 more
core +3 more sources
A Hysteresis Space Vector PWM for PV Tied Z-Source NPC-MLI With DC-Link Neutral Point Balancing
IEEE 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
Flying capacitor voltage balance and neutral point voltage regulation of PV array fed active neutral point clamped converter in real‐time HIL [PDF]
IET Power Electronics, 2020 This study deals with a new control strategy for flying capacitor (FC) based multilevel converter, in order to attain the desired reference value for five‐level output voltage in active neutral point clamped (ANPC) converter. The balancing of capacitor voltages is one of the crucial aspects of grid‐tied photovoltaic (PV) fed ANPC converter.
Nidhi Mishra +4 more
openaire +1 more source
Seven Level T-Type Switched Capacitor Inverter Topology for PV Applications
IEEE Access, 2021 The conventional neutral point clamped (NPC) multilevel inverter topology needs voltage balancing circuits to balance the dc-link capacitor, the number of component count is high and output voltage is half of the input voltage which increase the size of ...
Saeed Alyami +4 more
doaj +1 more source
A modified neutral-point balancing space vector modulation technique for three-level neutral point clamped converters in high speed drives [PDF]
, 2018 This paper describes a high performance neutral point voltage balancing technique for a Neutral point clamped (NPC) Converter. Conventional neutral point voltage balancing methods do not function well under low power factor, low pulse ratio and near ...
Bozhko, Serhiy +6 more
core +2 more sources
IEEE Access, 2020 The leakage current caused by common-mode (CM) voltage is a critical issue in transformerless three-level photovoltaic (PV) inverters, which can increase the output current distortion, bring extra power losses, aggravate the electromagnetic interference,
Rende Zhao +4 more
doaj +1 more source
Capacitor Voltage Balancing Control Scheme for 2/3-Level DAB Converters [PDF]
, 2021 Two-three (2/3)-level dual-active-bridge (DAB) DC-DC converters have high potential to be applied in the high-voltage (HV) applications due to their higher voltage blocking capability compared to the two-level DAB converters.
Blaabjerg, Frede +3 more
core +2 more sources