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.
Highlights
The deregulated electric power industries have changed the way of operation, structure, ownership and management of the utilities
Yousufi et al [11] have proposed a combination of Demand Response (DR) and Flexible Alternating Current Transmission System (FACTS) devices for congestion management
The line set that has highest value of Disparity Line Utilization Factor (DLUF) is considered to be the optimal location of Interline Power Flow Controller (IPFC) for Congestion Management
Summary
The deregulated electric power industries have changed the way of operation, structure, ownership and management of the utilities. Several authors [6], [7] have proposed a sensitivity based approach for optimizing the location of FACTS devices for congestion management by controlling the device parameters. Acharya et al [9] have proposed two new methodologies for the placement of series FACTS devices for congestion management. Yousufi et al [11] have proposed a combination of Demand Response (DR) and Flexible Alternating Current Transmission System (FACTS) devices for congestion management. Optimal placement and sizing of FACTS devices for congestion management. Ushasurendra et al [15] have proposed Line Utilization Factor (LUF) for optimal placement of FACTS devices for congestion management. FACTS devices are placed on the transmission line with maximum LUF value.
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