Results 21 to 30 of about 23,320 (286)

Precise modelling of switching and conduction losses in cascaded h-bridge multilevel inverters [PDF]

open access: yes, 2014
Nowadays, voltage source multilevel inverters are being used extensively in industry due to its many advantages, compared to conventional two level inverters, such as higher output voltage at low switching frequency, low voltage stress(dv/dt), lower ...
Alamri, B, Darwish, M
core   +1 more source

Unified Selective Harmonic Elimination for Multilevel Converters

open access: yesIEEE Transactions on Power Electronics, 2017
For multilevel converters, as their selective harmonic elimination (SHE) equations are highly related to the switching patterns, it is almost impossible to give a complete study for all the switching patterns under the traditional SHE framework.
Kehu Yang   +6 more
openaire   +1 more source

Online control of AC/AC converter based SHEPWM technique [PDF]

open access: yes, 2014
Conventional online control of AC/AC converter controlled by the selective harmonic elimination pulse width modulation technique (SHEPWM) is based on storing the offline calculated switching angle values in a form of lookup table.
Darwish, M, Hashem, GM
core   +1 more source

Direct usage of photovoltaic solar panels to supply a freezer motor with variable DC input voltage [PDF]

open access: yes, 2020
In this paper, a single-phase photovoltaic (PV) inverter fed by a boost converter to supply a freezer motor with variable DC input is investigated. The proposed circuit has two stages.
Farzan Moghaddam, Ali   +1 more
core   +2 more sources

Formulations, Solving Algorithms, Existing Problems and Future Challenges of Pre-Programmed PWM Techniques for High-Power AFE Converters: A Comprehensive Review

open access: yesEnergies, 2022
Considering the development of the hybrid wind and solar photovoltaic generation and smart grid, Active Front-End (AFE) converters for high-power applications are facing significant opportunities and challenges related to power quality and efficiency ...
Tao Jing   +4 more
doaj   +1 more source

Selective Harmonic Mitigation Technique for Cascaded H-Bridge Converters With Nonequal DC Link Voltages [PDF]

open access: yes, 2013
Multilevel converters have received increased interest recently as a result of their ability to generate high quality output waveforms with a low switching frequency. This makes them very attractive for high power applications.
Aguirre Echanove, Miguel Ángel   +5 more
core   +1 more source

Modified teaching learning based optimization for selective harmonic elimination in multilevel inverters

open access: yesAin Shams Engineering Journal, 2022
Renewable Energy sources are becoming an important source of energy generation. Battery energy storages systems are used to supply the power when there is variation in power generation due to climate change. Power stored in batteries need to be converted
Muhammad Tayyab Yaqoob   +2 more
doaj   +1 more source

Differential pharmacokinetics and pharmacokinetic/pharmacodynamic modelling of robenacoxib and ketoprofen in a feline model of inflammation [PDF]

open access: yes, 2014
Robenacoxib and ketoprofen are acidic nonsteroidal anti‐inflammatory drugs (NSAIDs). Both are licensed for once daily administration in the cat, despite having short blood half‐lives.
Arifah   +48 more
core   +3 more sources

Components’ Tolerance Impact on the Design of a Real Case of One MW PV Substation

open access: yesDiscrete Dynamics in Nature and Society, 2023
In this article, a real case of a one MW PV substation design problem is described. The impact of the tolerances of power components (mainly inductors and capacitors) on the design is highlighted through two studies using two different control strategies
Ramzi Ben Ayed   +3 more
doaj   +1 more source

Parallel resultant elimination algorithm to solve the selective harmonic elimination problem

open access: yesIET Power Electronics, 2016
Although the resultant elimination method can get all the possible solutions for the selective harmonic elimination (SHE) problem without the selection of initial values, it still has some fatal shortcomings, such as the high computation burden and the huge memory consumption caused by the intermediate expression swell in the ...
Kehu Yang   +4 more
openaire   +1 more source

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