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Disparity Line Utilization Factor Based Optimal Placement of IPFC for Congestion Management

Akanksha Mishra, Gundavarapu Venkata Nagesh Kumar

DOI: 10.15598/aeee.v14i2.1546


Abstract

Recently, due to the adoption of power reforms, there is a marked increase of contracted power that flows in the transmission line and also the spontaneous power exchanges leading to complex power transmission congestion problems. The appearance of Flexible AC Transmission Systems (FACTS) devices specifically Interline Power Flow Controller (IPFC) has opened up new opportunities to overcome the congestion problem by increasing the possible system load. Hence, the optimal placement of FACTS devices is deservedly an issue of great importance. This paper proposes a Disparity Line Utilization Factor (DLUF) for the optimal placement of IPFC to control the congestion in transmission lines. DLUF determines the difference between the percentage MVA utilization of each line connected to the same bus. The proposed method is implemented for IEEE–14 and IEEE-57 bus test system. The IPFC is placed in all possible line combinations of IEEE-14 bus system to check the validity of the proposed methodology. To confirm the generality of the proposed method, the technique is also implemented and verified for IEEE-57 bus test system. An increased load of 110% and 125% is applied, and the results are presented and analysed in detail to establish the effectiveness of the proposed methodology.

Keywords


Congestion; interline power flow controller; line utilization factor; optimal placement.

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