شماره ركورد كنفرانس :
2727
عنوان مقاله :
Influence of rectifier diode failure in ground fault detection method in the excitation system for synchronous generators with static excitation
عنوان به زبان ديگر :
Influence of rectifier diode failure in ground fault detection method in the excitation system for synchronous generators with static excitation
پديدآورندگان :
Rahimi-Taghanaki Siroos نويسنده Ahvaz Electrical Distribution Company , Seifossadat Ghodratolah نويسنده Shahid Chamran University of Ahvaz , Rohani Arash نويسنده Khuzestan Regional Electric Company
كليدواژه :
synchronous generator protection , ground fault detection , synchronous machine excitation system , failure in diode
عنوان كنفرانس :
اولين كنفرانس بين المللي دستاوردهاي نوين پژوهشي در مهندسي برق و كامپيوتر
چكيده لاتين :
This paper investigates the influence of rectifier diode failure in ground fault detection method in the excitation system
for synchronous generators with static excitation. The detection method is based on the frequency analysis of the first and third voltage harmonics at a grounding impedance placed at the excitation transformer neutral terminal. Due to the effect of a
short circuit or an open circuit in rectifier diodes on the fault side (AC or DC), the detection method makes a mistake in identifying the side of excitation fault. The object of the proposed method in this paper is to identify the side of ground fault in excitation, while there is a short circuit or an open circuit in one of the diodes. The accuracy and applicability of the proposed technique is demonstrated through both computer simulations and experimental tests.
شماره مدرك كنفرانس :
4240260
