Protection Scheme using RPI Concept in STATCOM Compensated EHV System
Anuradha Kurekar1, Piyush Khadke2

1A. Hazarathaiah, Research Scholar, Department of E.C.E, JNTUK Kakinada, (Andhra Pradesh), India.
2Dr. B. Prabhakara Rao, Retired Rector, Department of E.C.E, JNTUK Kakinada, (Andhra Pradesh), India.

Manuscript received on 30 June 2019 | Revised Manuscript received on 05 July 2019 | Manuscript published on 30 July 2019 | PP: 2730-2733 | Volume-8 Issue-9, July 2019 | Retrieval Number: I8136078919/19©BEIESP | DOI: 10.35940/ijitee.I8136.078919
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Abstract: This research work present a protection scheme for fault detection and fault classification in EHV with static synchronous compensator (STATCOM) using Regulated Power index (RPI) concept. RPI per phase is defined as the ratio of the sum of sending end apparent power and receiving end apparent power to the apparent power at receiving end for that phase [1]. STATCOM is used for reactive power compensation and regulates the system voltage by absorbing and generating reactive power. As per the requirement of system parameter scheme is developed for the detection of fault, identification of faulty phase and tripping the faulty phase. This scheme will be validated by considering various fault test cases considering severe fault conditions with very low resistance, high fault resistance conditions and internal faults with static synchronous compensator (STATCOM) at sending end on the MATLAB model of transmission system at 220 KV level.
Keywords: RPI concept, fault detection, transmission line, 48-pulse GTO thyristor model STATCOM.

Scope of the Article: Wireless Power Transmission.