Dynamic Verification of the Impact OF TCSC and its Different Modes on Distance operation
Publish place: 11th Iranian Student Conference on Electrical Engieering
Publish Year: 1387
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
ISCEE11_232
تاریخ نمایه سازی: 15 اسفند 1386
Abstract:
Fault occurrence in the transmission lines which are compensated by TCSC exerts complicate characteristic on distance relay operation. Different modes of TCSC in fault conditions can be appeared for preventing the TCSC equipments against overvoltage . Different modes made by TCSC control strategy cause relay mal-functioning, because these modes affect the distance relay impedance calculation from relaying point to a fault location considerably. When a single phase to ground fault is occurred in transmission line which is compensated by TCSC and TCSC be located in the line section between relaying and fault points, the pre-fault load flow, operational and structural power system conditions and zero sequence parameters changing make the relay overraching or losing directional integrity less than 3- phase – phase fault case.
Keywords:
Distance relay , Thyristor controlled series capacitor , Impedance measurement , Power system blockset
Authors
Heydar Imani
University of Science and Technology , Iran
Sadegh Jamali
University of Science and Technology , Iran
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