نتایج جستجو برای: substation

تعداد نتایج: 1954  

2017
Ahmed Altaher Stéphane Mocanu Jean-Marc Thiriet

Power substations are intensively renovated toward using information and communication technologies such as object oriented modeling and Ethernet networks. In the last two decades, Substation automation systems used capabilities of network communication services adopted from sophisticated international standardizations such as IEC 61850. Distributed safety related functions take advantage of th...

2014
Tomo Popovic Mladen Kezunovic Bozo Krstajic

This paper addresses implementation requirements for a fully automated substation data integration and fault analysis for power system transmission lines. The approach is based on measurements from substation intelligent electronic device recordings. The proposed architecture provides a transparent approach to substation data management, analytics functions, as well as the visualization of the ...

2015
Qiang Zhang Xuwen Wang Xiaojie Wang

In allusion to the widespread anomalous data in substation primary equipment condition monitoring, this paper proposes an OPTICS (Ordering Points To Identify the Clustering Structure) clustering-based condition monitoring anomalous data filtering algorithm. Through the characteristic analysis of historical primary equipment condition monitoring data, an anomalous data filtering mechanism was bu...

2013
P. Ramakrishna Reddy

Switching of disconnectors (DS) and various faults in Gas Insulated Substation (GIS) causes number of pre-strikes and re-strikes happens. The short duration voltage collapse, traveling surges in busbar causes Very Fast Transient Over voltages (VFTO) and Very fast Transient Currents (VFTC) in the GIS substation. The main challenge is to reduce VFTO and VFTC amplitudes. Several methods have been ...

2014
Christian Schmitz Dorothea Wagner Peter Sanders Tamara Mchedlidze Hung-I Yu

The planning of wind farms exhibits several interesting problems. One of them is the minimum cost cable installation in wind farms. In this master thesis we regard a subproblem of it, namely the Substation Cable Installation Problem (SCIP). The SCIP deals with the minimum cable installation connecting wind turbines to a substation. It is therefore defined as follows: Given a set of coordinates ...

2013
Farzad Dehghani Hamid Nezami

In this paper, an effective fault location technique is proposed. Using the current samples of the distribution feeder measured at the substation, the proposed technique first determines the type of fault. Furthermore, an artificial neural network (ANN) is trained for each type of fault. The ANNs are trained to estimate the fault distance to the substation (FDANN).The Inputs of the ANNs are dat...

2016
C. ABOMAILEK P. CASALS-TORRENS

Due to the important increase of the power of electrical transmission and distribution grids expected for the following years, especially in developing countries such as Kenya, Brazil, Philippines or Mexico among others, that have planes of generating energy from clean sources far away from the centres of consumption [1] it becomes a matter of special importance adapting and developing new subs...

2014
Saeed Hasanvand Hossein Fallahzadeh-Abarghouei Hossein Hosseinian Seyyed Hossein Hosseinian Behrooz Vahidi

A new method to solve the single and multi-objective distribution expansion planning problems including DG is investigated in this paper. The sizing and placement of DG as well as the required power of the main grid would be optimized using proposed method to meet the demand. Binary Particle Swarm Optimization (BPSO) algorithm is used to solve the optimization problem for three objective functi...

2010
Mladen Kezunovic Mohsen Ghavami Chenyan Guo Yufan Guan

(PSERC) is a multi-university Center conducting research on challenges facing the electric power industry and educating the next generation of power engineers. More information about PSERC can be found at the Center's website: Notice Concerning Copyright Material PSERC members are given permission to copy without fee all or part of this publication for internal use if appropriate attribution is...

Journal: :JCM 2014
Lei Chen Hao Pan Changhong Deng Feng Zheng Haijun Yan Fang Guo

Since the interactivity, integrality and instantaneity of information communication in smart substation have been improved to higher levels, it can contribute to promote the realization of a centralized type substation area backup protection (SABP), acting as an integrated protection system for whole substation. On the side, in the case that fault current limiters (FCLs) are suggested to be emp...

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