نتایج جستجو برای: power quality classification

تعداد نتایج: 1652525  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه 1377

the methods which are used to analyze microstrip antennas, are divited into three categories: empirical methods, semi-empirical methods and full-wave analysis. empirical and semi-empirical methods are generally based on some fundamental simplifying assumptions about quality of surface current distribution and substrate thickness. thses simplificatioms cause low accuracy in field evaluation. ful...

Journal: :the modares journal of electrical engineering 2011
ali enshaee rahmatolah hooshmand

detection & classification of power quality (pq) disturbances are the most important problems in distribution systems. in this paper, a new approach for the detection and classification of single and combined pq disturbances is proposed which utilizes fuzzy logic and particle swarm optimization (pso) algorithms. in this approach, first suitable features of the waveform of pq disturbances ar...

G. Wu M. Alishahi M. H. Yaghmaee

Nowadays, a great portion of researches research and industrial innovation is about the electric vehicles (EV) and also EV Supply Equipment (EVSE) that play an important role in this context. EVSE requires standardization via effective communication protocols. In this paper, we propose to customize the existing Internet standard Routing Protocol for Low Power and Lossy Networks (RPL) to facilit...

2013
Bhavna Jain Shailendra Jain

Extensive use of power electronic devices and non-linear loads in electrical power system cause problem of power quality (PQ). Renewable energy sources are also integrated to the grid through power electronics based equipment. So the power quality issues are drawing attention in recent years. PQ disturbance need to be detected accurately It is also essential to find out the cause of such an eve...

Journal: :amirkabir international journal of electrical & electronics engineering 2015
m. alishahi m. h. yaghmaee g. wu

nowadays, a great portion of researches research and industrial innovation is about the electric vehicles (ev) and also ev supply equipment (evse) that play an important role in this context. evse requires standardization via effective communication protocols. in this paper, we propose to customize the existing internet standard routing protocol for low power and lossy networks (rpl) to facilit...

2005
Krzysztof Duda Andrzej Bień

In this paper we present real-time application for detecting, extracting and automatic classification of transient disturbances in electric power network. Proposed method was implemented on Texas Instruments C6713 DSK toolkit and tested with both laboratory-generated and real-world power network signals with good results. For each detected transient a set of parameters is evaluated including th...

Journal: :International Journal of Power Electronics and Drive Systems 2022

Origin and triggers of power quality (PQ) events must be identified in prior, order to take preventive steps enhance quality. However it is important identify, localize classify the PQ determine causes origins disturbances. In this paper a novel algorithm presented voltage variations into six different considering space phasor model (SPM) diagrams, dual tree complex wavelet transforms (DTCWT) s...

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