Optimal allocation of sectionalizing switches in rural distribution systems

Download

index.pdf

Date

2011

Author

Daldal, Mustafa

Metadata

Show full item record

Item Usage Stats

304
views

119
downloads

The distribution system which forms the final connection between customers and power source plays a vital role in an electrical network. Different studies show that substantial proportion of the customer interruptions occurs due to the failures on distribution network. The ongoing privatization process of the electrical distribution services in Turkey raises the importance of reliable and continuous electricity supply significantly. The new regulations come up with this privatization process and the electrical distribution companies are strictly required to comply with these regulations to ensure the reliability of the distribution network. The legal framework and severe punishments applied to the electrical distribution companies exceeding the continuity of supply indices force them to invest on their network in order to increase the reliability of their system. As the reliability of electricity supplied increases, investment cost also increases. However, low system reliability causes higher outage frequency and duration which will increase the damage of these outages to customers and also increases the cost of the distribution company as a result of the penalty payments. This tradeoff between Outage Cost and Utility Cost requires consideration of an optimization when determining the optimal reliability level. In rural areas where electrical distribution network consists of long radial overhead lines in arborescent structure, continuity of supply is a major problem due to the high failure rates. The implementation of protection devices having reclosing capability and automated sectionalizing switches enhances the continuity of supply on rural networks substantially. The balance between the cost associated with installation of switches and the reduction on Outage Cost is an important optimization issue for distribution network operators. In this thesis study an algorithm is developed in order to determine the optimum number and locations of the sectionalizing switches on a rural electrical distribution network in Turkey which gives an optimum investment level with an optimum Outage Cost.

Subject Keywords

Electric power distribution.

URI

http://etd.lib.metu.edu.tr/upload/12613947/index.pdf
https://hdl.handle.net/11511/20850

Collections

Graduate School of Natural and Applied Sciences, Thesis

Suggestions

OpenMETU
Core

Optimal maintenance scheduling for transmission lines Özmen, Engin Berk; Göl, Murat; Department of Electrical and Electronics Engineering (2018) The fundamental mission of a transmission system operator is to supply desired electricity to all parts of the network continuously within acceptable economic and quality standards. Transmission lines provide the essential infrastructure to carry the power from generation stations to customers. Maintenances of the transmission lines are of great importance for not only power system reliability but also operational costs and equipment life span. Furthermore, operating the system with all available equipment ...
Performance based ratemaking in electric distribution services Uğuz, Mustafa; Sevaioğlu, Osman; Department of Electrical and Electronics Engineering (2006) Regulation is one of the main elements in electric distribution services. The objective of the regulation is to maintain the balance between the rates and the service quality of electric distribution on behalf of both utilities and customers. In rapidly changing world the regulation regimes are also changing .In this thesis, an increasingly implemented regulation model in electric distribution, performance based ratemaking is studied. Its advantages and disadvantages, implementing methods and its quality ef...
Optimal phasor measurement unit (PMU) placement for the power systems with existing SCADA measurements Ertürk, Bulut; Göl, Murat; Department of Electrical and Electronics Engineering (2017) It is extremely important to maintain efficiency, sustainability and reliability of the generation, transmission and distribution of the electrical energy; hence it is mandatory to monitor the system in real time. State estimation has a key role in real time monitoring of a power system. The considered power system has to be observable in order to perform state estimation. Traditionally, power system state estimators employ SCADA measurements. However, as the number of Phasor Measurement Units (PMUs) increa...
On the parametric and nonparametric prediction methods for electricity load forecasting Erişen, Esra; İyigün, Cem; Department of Industrial Engineering (2013) Accurate electricity load forecasting is of great importance in deregulated electricity markets. Market participants can reap significant financial benefits by improving their electricity load forecasts. Electricity load exhibits a complex time series structure with nonlinear relationships between the variables. Hence, new models with higher capabilities to capture such nonlinear relationships need to be developed and tested. In this thesis, we present a parametric and a nonparametric method for short-term ...
Optimization of location and number of lightning arresters in 420 kV substations in Turkish high voltage electricity system Tulaz, Mert Ozan; Güven, Ali Nezih; Department of Electrical and Electronics Engineering (2014) Insulation coordination is defined as the selection of the dielectric strength of equipment in relation to the voltages which can appear on the system for which the equipment is intended and taking into account the service environment and the characteristics of the available protective devices. In an insulation coordination study, the voltage levels of power system equipment are determined in order to ensure the protection of equipment against overvoltages. This proper design in terms of the insulation coor...

Citation Formats

M. Daldal, “Optimal allocation of sectionalizing switches in rural distribution systems,” M.S. - Master of Science, Middle East Technical University, 2011.