نتایج جستجو برای: electric network analysis

تعداد نتایج: 3442944  

Mohammad Nabi Sarbolouki Nadia Javadian

This articles is comprised of two parts: a) an experimental investigation on the behavior of an acrylic gel under DC electric field and b) a physico - mathematical description.a) Gel rods made of poly [acrylamide-co-bisacrylamide] were partially hydrolyzed to different extents at pH 12 by teteramethylethylene diamine. Equlibrium properties of the resulting gels rods (water content,...

The increment integration of renewable distributed energies means the desired operation of the electric power system will significantly depend on the performance of primary energy. In this order, an integrated approach for mutual interaction between the electricity and natural gas systems has been considered for the purpose of ensuring optimal energy exchanging between the electric power system...

Journal: :international journal of advanced biological and biomedical research 2014
dina sezavar mohadeseh miri

objective: in this article, a numerical study is conducted on mixing of two fluids in the liquid phase with two different concentrations of a chemical species in the electro-osmotic flow. methods: the base liquid is an electrolyte which flows in a two-dimensional micro-channel having electrically charged walls. lorentz electric force, which is used as stimulating flow factor, is created by appl...

Journal: :iranian journal of public health 0
brice poreau

background: due to embargoes and sanctions from 1979 until 2015, impact on scientific research in iran may be critical. public health is the main example of this burning point. in this paper, the aim was to map the scientific research in public health in iran until 2014 with area studies as well as networks of countries involved. methods: we used bibliographic analyses using vos viewer software...

2002
W. EL-KHATTAM M. M. A. SALAMA

Due to the deregulation trend in electric power system networks, many factors have to be taken into consideration such as lack of supplying electric power, system reliability, power quality, electric system losses and voltage disturbance and profile problems. The excessive growing needs for electricity force electrical researchers to implement new approaches through the electric system. Introdu...

2012
ZhiHang Chen Yi Lu Murphey Baifang Zhang Hongbin Jia M. Abul Masrur

The power electronics inverter can be considered as the weakest link in an electric drive system, hence the focus of this research work is on the detection of fault conditions of the inverter. A machine learning framework is developed to systematically select torque-speed domain operation points, which in turn are fed to an electric drive model to generate signals for training an artificial neu...

2018
Yuancheng Zhao Yanbo Che Dianmeng Wang Huanan Liu Kun Shi Dongmin Yu

With the rapid growth of domestic electric vehicle charging loads, the peak-valley gap and power fluctuation rate of power systems increase sharply, which can lead to the increase of network losses and energy efficiency reduction. This paper tries to regulate network loads and reduce power system transmission loss by optimizing domestic electric vehicle charging loads. In this paper, a domestic...

Journal: :The Journal of The Institute of Image Information and Television Engineers 2006

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی امیرکبیر(پلی تکنیک تهران) - دانشکده مهندسی برق 1387

با پیشرفت‎های اخیر در فن آوری الکترونیک قدرت، کاربرد سوییچ‎های نیمه هادی با مقادیر نامی بالا در مبدل‎های تجهیزاتی مانند سیستم انتقال hvdc، ادوات facts، درایو ماشین‎های الکتریکی و غیره، در حال افزایش است. از این رو نرم‎افزارهای تحلیل سیستم‎های قدرت باید توانایی تحلیل شبکه در حضور چنین تجهیزاتی را داشته باشند. علاوه بر این، از آنجاییکه نوع ac-dc این مبدل‎ها به طور گسترده در اتصالات hvdc مورد استف...

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