نتایج جستجو برای: 2006 high power converters and acdrives new york ieee presswiley interscience2 h abu rub

تعداد نتایج: 17506907  

مجید روحی

بحث در خصوص سیاست داخلی و خارجی ایران و بخصوص بعد از 11 سپتامبر 2001 مسئله اتمی ایران، موضوعاتیهستند که ذهن کارشناسان و محققان مختلف را ب هخود مشغول داشته و در این زمینه کتا بها، مقالات و سمینارهاایران پوشیده: پارادوکس و قدرت « و همای شهای مختلفی نیز نوشته و برگزار شده است. ری تکیه، نویسنده کتابیکی از همین نویسندگان است. او که کی ایرانی ارمن یتبار است، عضو مرکز ایران ،»] در جمهوری اسلامی ]ایران...

1999

Since the PCS needs to handle high power high voltage, the soft-switching topologies utilized in the design should have both ZVT and ZCT functions. A novel soft-switching topology that has both ZVT and ZCT functions is suggested. The new topology has both ZVT and ZCT functions by using two additional components, a switch and a diode. The auxiliary inductor for soft-switching is implemented insi...

2013
S.Usha R.Dhanalakshmi

Usually basic dc-dc boost converters are unable to provide high step up voltage gain due to the effect of power switches, rectifier diodes and equivalent series resistance of inductors and capacitors and the voltage stresses on the power switches are high. This paper proposes a simple transformerless dc-dc converters to achieve high step up voltage gain without an extremely high duty ratio. The...

Journal: :Dalton transactions 2012
Ying Wei Bernd Marler Ling Zhang Zhijian Tian Heribert Graetsch Hermann Gies

For the first time, the co-templating ionothermal methodology was used in the preparation of layered aluminophosphate materials. With the addition of either 1,2-ethylenediamine or 1,6-hexanediamine to the ionic liquid 1-ethyl-3-methyl imidazolium chloride, two new 2D layered aluminophosphates RUB-A1 [Al(3)P(4)O(16)][NH(3)CH(2)CH(2)NH(3)](0.5)[C(6)N(2)H(11)](2) and RUB-A2 [Al(3)P(4)O(16)][NH(3)(...

Z-Source converter or impedance-source converter is a kind of power converters, which has the responsibility to convert the direct current to alternative current. This converter with respect to its circuit diagram acts as a buck-boost converter except it doesn’t use from DC-DC converter bridge. Γ-source inverters are one of the conventional converters based on impedance-sources; which have been...

M. Asghari Gharakheili M. Fotuhi-Firuzabad,

The present context of the electric industry, characterized by competitive markets, privatization, and regulatory of technical requirements forces the power utilities to optimize their asset management practices and develop the requisite decision plans techno-economically. Practically approaching, this paper devises a new support tool based on a multiattribute decision making (MADM) framework i...

Journal: :IEEE Trans. Industrial Electronics 2017
Weimin Wu Marco Liserre Henry Shu-Hung Chung

OWER CONVERTERS have been widely adopted for distributed power generation systems, where the resonances may be excited. Although many innovative methods have been put forwarded to attenuate the appeared resonances and enhance the stability of system, how to keep high performance of power converters is still a big challenge for researches and engineers, especially when the power grid is weak and...

2017
Pouria GOHARSHENASAN KHORASANI Mahmood JOORABIAN Seyed Ghodratolah SEIFOSSADAT

Considering the advantages of DC microgrids, the extension of the conventional AC distribution grid can be implemented using a DC microgrid. This justifies the realization of a hybrid AC/DC microgrid. In the present study, a new global solution is presented to improve the power quality and to fully compensate the reactive power of an AC microgrid using DC bus capacity while introducing a new de...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی خواجه نصیرالدین طوسی - دانشکده مهندسی برق و کامپیوتر 1391

power transformers are important equipments in power systems. thus there is a large number of researches devoted of power transformers. however, there is still a demand for future investigations, especially in the field of diagnosis of transformer failures. in order to fulfill the demand, the first part reports a study case in which four main types of failures on the active part are investigate...

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