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العنوان
Enhancing Power System Observability with the Aid of Phasor Measurements Units \
المؤلف
Ibrahim,Ahmed Hamdy Ghazy
هيئة الاعداد
باحث / أحمد حمدي غازي إبراهيم
مشرف / سعيد فؤاد محمد مخيمر
مشرف / وليد عاطف عمران
مناقش / فهمــي متــولي بنــداري
تاريخ النشر
2016
عدد الصفحات
73P.:
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
الهندسة الكهربائية والالكترونية
تاريخ الإجازة
1/1/2016
مكان الإجازة
جامعة عين شمس - كلية الهندسة - هندسة القوى والالات الكهربية
الفهرس
Only 14 pages are availabe for public view

from 98

from 98

Abstract

This thesis presents two methods for optimally allocating the phasor measurement units in the electrical power network. The two methods are Binary Integer Linear Programming (BILP) and the probabilistic failure method for minimizing the number of phasor measurement units needed which can achieve full system observability.
The full system observability is verified on both normal condition and N-1 contingency condition under either PMU failure or a transmission line failure using the Binary Integer Linear Programming (BILP). Moreover, the approach is used to locate the PMUs with considering the effect of limited number of measuring channels. The problem formulation also considered the effect of Zero Injection Buses (ZIB) by using a set of rules that improve the redundancy between PMUs by choosing better locations without increasing the required numbers of PMUs. The applied approach is tested on IEEE standard system i.e. 14 bus, 30 bus and 57 bus systems. The simulation results are compared with other studies to validate the efficiency and performance of the applied technique.
The implementation of the probabilistic failure method using state enumeration. Simulated systems show how this method is more efficient and reliable as it depends on evaluating two reliability indices which are the probability of unobservability of the bus and the probability of unobservability of the system. Adding the PMUs will be step by step till the probability of unobservability of the system is improved. The probabilistic failure method can deal with any PMU allocation method, as its ability to start at any existing system status regarding the number of PMUs or their locations. This method also is near to real systems where first PMUs have to be placed at the critical buses due to technical and economical issues, then more PMUs are placed till the system is fully observable and reliable. The probabilistic failure method is tested on the IEEE standard systems 14, 30 and 57 test systems. The simulations results are compared with other studies used in the literature to validate the performance of the applied technique.
Two papers (Journal and conference) are extracted and published from this thesis.