Results 61 to 70 of about 7,027,692 (242)
IEEE Access, 2020 This paper proposed a grid connected solar Photovoltaic (PV) Systems with a new voltage balancing converter suitable for Neutral-Point-Clamped (NPC) Multilevel Inverter (MLI).
Amir Taghvaie +3 more
doaj +1 more source
A Modified Three-Level Neutral-Point-Clamped Converter for a Low Carrier Ratio
In the application of high power electric propulsionand high-speed motor drives, a very low switching frequencyusually is employed, thus it has a very low carrier ratio, which inturn results in the failure of the established voltage-balancingschemes in ...
Xiao Zhang (152326) +5 more
core +5 more sources
, 2023 This letter derives and discusses the superiority of a simple dc-link capacitor voltage control configuration for multilevel neutral-point-clamped converters with any number of levels.
Sergio Busquets-Monge (9223913) +3 more
core +1 more source
FEBS Open Bio, EarlyView.In this study, a novel esterase from the thermoacidophilic archaeon Thermoplasma acidophilum was biochemically and structurally characterized. Our results demonstrate that Ta0887 is a highly thermostable esterase that preferentially hydrolyzes p‐nitrophenyl hexanoate and possesses an α‐helical cap domain that likely contributes to its substrate ...
Alejandro Delgado‐Rey +4 more
wiley +1 more source
Journal 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
FEBS Open Bio, EarlyView.This pilot study investigates the potential of Generative AI to provide formative feedback to students. ChatGPT was prompted to provide feedback on Year 1 Bioscience essays, which were evaluated against established good feedback practices. GenAI‐authored feedback had useful elements, but was limited in scope. GenAI may have potential to provide instant,
Annabel Court +3 more
wiley +1 more source
A Simple SVPWM Over-modulation Scheme for Three-level Converter
Kongzhi Yu Xinxi Jishu, 2017 Traditional over-modulation scheme can lead to a large fluctuation of neutral-point voltage when three-level voltage source converter (VSC) works at over-modulation region. A SVPWM over-modulation scheme was proposed which was easy to implement and could
LIU Yong, GAN Weiwei, HU Xian
doaj
IEEE Access, 2017 This paper presents a dynamic phasor-based model for three-level front-end VIENNA rectifiers. The proposed model comprehensively predicts the behavior of the ac- and dc-side variables of the rectifier on which the issue of neutral point (NP) voltage is ...
Tiefeng Gao +3 more
doaj +1 more source
, 2022 The quasi-Z-source T-type inverter is a new type of three-level inverter. Compared with other three-level inverters, the quasi-z-source T-type inverter is characterized by its fault tolerance capability and boost capability.
Junyi Yao, Lingling Xie
core +1 more source
Recent insights into the molecular mechanism of ubiquinol oxidation by cytochrome bc1
FEBS Open Bio, EarlyView.The review reflects on the mechanism of the catalytic reaction in cytochrome bc1: the electron bifurcation that involves the separation of two electrons derived from the quinol oxidation to opposite sides of the enzyme across the membrane. This review summarizes the long‐standing effort to understand the mechanism of quinol oxidation catalyzed by ...
Anna Wójcik‐Augustyn +2 more
wiley +1 more source