Design of a New Structure for Hybrid Filters to Eliminate Harmonics of 25 kV AC Electric Railways
محل انتشار: نهمین کنفرانس تخصصی حفاظت و کنترل سیستم های قدرت
سال انتشار: 1393
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 1,052
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شناسه ملی سند علمی:
PSPC09_037
تاریخ نمایه سازی: 15 اسفند 1393
چکیده مقاله:
In electric railways, thyristor rectifiers are used in order to control the speed. As a consequence in addition to substantial input lead current, an enormous amount of harmonics is injected into the grid. To avoid such harmonics as well as reactive power compensation, reactive power hybrid filters consisting of active and passive filters are utilized. Hybrid filters have several different structures. Since electric railway has a non-linear and variable nature, a novel hybrid filter structure is designed that compensates reactive power and eliminates harmonics to attain desired harmonic level regarding the conventional allowable harmonics level standards. The designed filter model is simulated in MATLAB/SIMULINK and then applied to a harmonic model of an electric railway.
کلیدواژه ها:
نویسندگان
Sasan Yousefi
Electrical Engineering Department Amirkabir University of Technology (Tehran Polytechnic) Tehran, Iran
Aydin Zaboli
Electrical Engineering Department Amirkabir University of Technology (Tehran Polytechnic) Tehran, Iran
Mohammad Mahdi Hosseini-Biyouki
Electrical Engineering Department Amirkabir University of Technology (Tehran Polytechnic) Tehran, Iran
Hossein Askarian-Abyaneh
Electrical Engineering Department Amirkabir University of Technology (Tehran Polytechnic) Tehran, Iran