Results 41 to 50 of about 1,202,050 (329)
The Model and Quadratic Stability Problem of Buck Converter in DCM
MATEC Web of Conferences, 2016 Quadratic stability is an important performance for control systems. At first, the model of Buck Converter in DCM is built based on the theories of hybrid systems and switched linear systems primarily.
Li Xiaojing, Wu Aiguo
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International Transactions on Electrical Energy Systems, 2022 This paper proposes a high step-down ratio AC-DC converter employing a quadratic buck converter with power factor correction. Conventional active power factor correction topologies employ boost-based correction schemes for unity power factor operation ...
Lalitha T. S. Annambhotla, P. Parthiban
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Reformulating mixed-integer quadratically constrained quadratic programs [PDF]
, 2011 It is well known that semidefinite programming (SDP) can be used to derive useful relaxations for a variety of optimisation problems. Moreover, in the particular case of mixed-integer quadratic programs, SDP has been used to reformulate problems, rather ...
Galli, L, Letchford, A. N.
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Comparison between two VSC-HVDC transmission systems technologies : modular and neutral point clamped multilevel converter [PDF]
, 2009 The paper presents a detail comparison between two voltage source converter high voltage dc transmission systems, the first is based on neutral point-clamped (also known as HVDC-Light) and the second is based on innovative modular multilevel converter ...
Anaya-Lara, O. +5 more
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A New High-Gain DC-DC Converter with Continuous Input Current for DC Microgrid Applications
Energies, 2021 The growth of renewable energy in the last two decades has led to the development of new power electronic converters. The DC microgrid can operate in standalone mode, or it can be grid-connected. A DC microgrid consists of various distributed generation (
Javed Ahmad +8 more
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Improving The Performance of Quadratic Boost Converter By Adding Auxiliary Inductor
Al-Iraqia Journal for Scientific Engineering Research, 2023 This paper suggests a new method to achieve input current ripple (ICR) reduction of the quadratic boost converter (QBC). The planned converter is represented by adding an auxiliary inductor connected in a series with the bootstrapping diode to a QBC ...
Areej Hamzah Makee +1 more
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HeliyonThis paper introduces a type 2 fuzzy logic (T2FL)-based controller for maximum power point tracking (MPPT) in a high-gain three-level quadratic DC-DC boost converter (TLQDC-DCBC) designed for photovoltaic (PV) systems. High-gain DC-DC converters like the
Souheyb Mohammed Belhadj +5 more
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IEEE Open Journal of Power ElectronicsThis article introduces a new fully soft switched ultra-high step-up quadratic converter. The proposed converter benefits from several advanced features including high voltage gain at low duty cycle, low switch voltage stress, low sum of diodes voltage ...
Maryam Hajilou +2 more
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IEEE Open Journal of Power ElectronicsThis paper presents an ultra-high voltage gain, quadratic-based DC-DC structure optimized for cost-effectiveness and high power density, specifically for DC microgrid applications.
Ali Nadermohammadi +6 more
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Advanced Functional Materials, EarlyView.HfxZr1−xO2${\rm Hf}_x{\rm Zr}_{1-x}{\rm O}_2$ offers CMOS‐compatible nanoscale ferroelectricity yet suffers from a high Ec${\rm E}_c$ demanding large operating voltages. A unified phase‐field framework spanning AFE/FE/DE phases shows how FE grains soften neighboring AFE grains over λ$\lambda$ ≈$\approx$ 22–37 nm.
P. Pankaj +4 more
wiley +1 more source