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Adaptive relay co-ordination using a busbar splitting approach for a system integrity protection scheme

Protection and Control of Modern Power Systems 2022年第1期7卷 189-200页

作者： Rajesh Saikrishna Nilesh Kumar Rajalwal debomita ghosh Birla Institute of Technology Mesra Ranchi India (GRID:grid.418391.6) (ISNI:0000 0001 1015 3164)

Power system faults can often result in excessively high *** sustained for a long time,such high currents can damage system ***,it is desirable to operate the relays in the minimum possible *** this paper,a busbar splitting approach is used for adaptive relay setting and co-ordination purposes for a system integrity protec-tion scheme(SIPS).Whenever a fault occurs,the busbar splitting scheme splits a bus to convert a loop into a radial *** splitting schemes are chosen such that the net fault current is also *** splitting elimi-nates the dependency upon minimum breakpoints set(MBPS)and reduces the relay operating time,thus making it *** proposed methodology is incorporated into the IEEE 14-bus and IEEE 30-bus systems with single and multiple fault *** modeling and simulation carried out in ETAP,and the results of the proposed busbar splitting-based relay co-ordination are compared with the MBPS splitting-based relay co-ordination.

关键词： System integrity protection scheme(SIPS) Relay co-ordination Minimum breakpoint set(MBPS) Ward equivalent method Busbar splitting Wide area monitoring system(WAMS) ETAP

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Augmentation of situational awareness by fault passage indicators in distribution network incorporating network reconfiguration

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Protection and Control of Modern Power Systems 2019年第1期4卷 281-294页

作者： Tanmay Jain debomita ghosh Dusmanta Kumar Mohanta Department of Electrical and Electronics Engineering Birla Institute of TechnologyMesraRanchiIndia

Power distribution systems are profoundly inclined to disturbances like untimely switching of breakers & relays, sympathetic tripping, and uncertainties regarding fault location. Thus, system stability and reliability are greatly affected. In this way, situational awareness and system integrity are the crucial factors in developing power system security, as it empowers successful decision making & timely reaction by the operators to any disturbance and also maintaining continuity of power supply. This paper focuses on the enhancement of situational awareness by fault location through fault passage indicators (FPI) to improve nominal impedance-based methods in distribution networks. Also, the proposed method is validated by comparing it with Intelligent Electronic Device (IED) based fault location method. Further, simultaneous reconfiguration of the system is incorporated to maintain the continuity of supply. The analysis has been tested on IEEE 33 bus distribution system.

关键词： Situational awareness Fault passage Indicator Tie switching Reconfiguration

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