TY  - BOOK
AU  - Ahmed Rabee Kamel Sayed
AU  - Hussein I. Anis , 
TI  - Comparative feasibility of using passive shielding to mitigate power lines{u2019} magnetic fields  / 
PY  - 2016///
CY  - Cairo : 
PB  - Ahmed Rabee Kamel Sayed , 
KW  - Magnetic fields mitigation
KW  - Passive shielding
KW  - Power lines
N1  - Thesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Electrical Power and Machines; Issued also as CD
N2  - In this thesis, a systematic semi-heuristic method (genetic algorithm) is employed  to produce optimal reduction in overhead power lines{u2019} magnetic field. Passive shielding is applied on different power lines with two different phase arrangements and different configurations. The research also explores the effectiveness of the series  capacitive compensation on the mitigation performance. Studying the mitigation effectiveness is not only at a certain point such as ROW edge, but everywhere around  the line. For this purpose, zone-based mitigation is presented by modifying the objective function to be based on a specific geographic domain, at which magnetic field is desired to be minimal. To obtain the feasibility of magnetic field mitigation for a power line, the cost of passive shielding is modeled. The cost model contains four basic elements, namely, cost of shield conductors, cost of power losses, cost of support structures, and cost of capacitive compensation. Genetic algorithm is used to handle passive shielding with its cost as a multi-objective problem. The problem is made up  of two main objective functions: maximization of the magnetic field reduction and minimization of the cost of mitigation. Pareto optimal set which gives the relation  between optimal cost and reduction in magnetic field is presented. A new index which  measures the feasibility and effectiveness of mitigation of a line is defined and formulated. This index is called 2Feasibility Index3
UR  - http://172.23.153.220/th.pdf
ER  -