Data mining methods for clustering power quality data collected via monitoring systems installed on the electricity network

Download
2009
Güder, Mennan
Increasing power demand and wide use of high technology power electronic devices result in need for power quality monitoring. The quality of electric power in both transmission and distribution systems should be analyzed in order to sustain power system reliability and continuity. This analysis is possible by examination of data collected by power quality monitoring systems. In order to define the characteristics of the power system and reveal the relations between the power quality events, huge amount of data should be processed. In this thesis, clustering methods for power quality events are developed using exclusive and overlapping clustering models. The methods are designed to cluster huge amount of power quality data which is obtained from the online monitoring of the Turkish Electricity Transmission System. The main issues considered in the design of the clustering methods are the amount of the data, efficiency of the designed algorithm and queries that should be supplied to the domain experts. This research work is fully supported by the Public Research grant Committee (KAMAG) of TUBITAK within the scope of National Power quality Project (105G129).

Suggestions

Lifetime extension for surveillance wireless sensor networks with intelligent redeployment
Kosar, Rabun; Bojaxhiu, Ilir; Onur, Ertan; Ersoy, Cem (Elsevier BV, 2011-11-01)
For wireless sensor networks (WSNs), uneven energy consumption is a major problem. A direct consequence of this is the energy hole problem, formation of sensing voids within the network field due to battery depleted sensors in the corresponding region. Hole formations are inherent in the network topology, yet it is possible to develop strategies to delay the hole formations to later stages of the network operation and essentially extend the network lifetime without sensing quality loss. In this work, we ini...
Performance evaluation of flexray networks for in-vehicle communication
Demirci, Ali; Schmidt, Şenan Ece; Department of Electrical and Electronics Engineering (2009)
The increasing use of electronic components in today’s automobiles demands more powerful in-vehicle network communication protocols. FlexRay protocol, which is expected be the de-facto standard in the near future, is a deterministic, fault tolerant and fast protocol designed for in vehicle communication. In the near future, safety critical X-by-Wire applications will be available in the automobiles and FlexRay networks can be used to provide communication for the Electronic Control Units (ECUs) that perform...
Data Mining-Based Upscaling Approach for Regional Wind Power Forecasting: Regional Statistical Hybrid Wind Power Forecast Technique (RegionalSHWIP)
Ozkan, Mehmet Baris; Karagöz, Pınar (Institute of Electrical and Electronics Engineers (IEEE), 2019-01-01)
With the increasing need for the energy, the importance of renewable energy sources has also been increasing. In order to include the power produced by the wind into electricity grid in a controlled manner, power prediction has an important role. To produce a reliable wind power forecast, obtaining Wind Power Plants' (WPP) power generation data in real time and constructing the power forecast model with historical production values is a desirable action plan. However, this situation may not be applicable fo...
Duty cycle control in wireless sensor networks
Yılmaz, Mine; Bilgen, Semih; Department of Electrical and Electronics Engineering (2007)
Recent advances in wireless communication and micro-electro-mechanical systems (MEMS) have led to the development of implementation of low-cost, low power, multifunctional sensor nodes. These sensor node are small in size and communicate untethered in short distances. The nodes in sensor networks have limited battery power and it is not feasible or possible to recharge or replace the batteries, therefore power consumption should be minimized so that overall network lifetime will be increased. In order to mi...
Condition monitoring and fault diagnosis of electrical motor drive systems
Demirel, Aykut; Keysan, Ozan; Department of Electrical and Electronics Engineering (2019)
Increasing utilization of electrical machines results in an increasing demand of high reliability and safety. Especially in mission critical applications, unexpected failures of these machines may bring irrecoverable damages to the systems. Furthermore, such failures may be hazardous to human life in military or aerospace applications. One method to meet the reliability and safety requirement is introducing redundant modules to be used in case of an emergency. However, adding extra modules as substitutes in...
Citation Formats
M. Güder, “Data mining methods for clustering power quality data collected via monitoring systems installed on the electricity network,” M.S. - Master of Science, Middle East Technical University, 2009.