Design of a New Structure for Hybrid Filters to Eliminate Harmonics of 25 kV AC Electric Railways

Publish Year: 1393
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:

PSPC09_037

تاریخ نمایه سازی: 15 اسفند 1393

Abstract:

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.

Authors

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