Analysis of Voltage Stability in Electric Power System with UPFC

Gasperic, S.; Mihalič, Rafael

doi:10.3311/ppee.8604

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2015

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“…Several steady state and dynamic contingency ranking methods are used for contingency screening [1][2][3][4][5][6]. During system disturbances, system stability becomes vulnerable and there is a high risk of moving towards global instability or total collapse or blackout if preventive actions are not taken quickly.…”

Section: Introductionmentioning

confidence: 99%

A Redundancy Based Optimal Placement of Interline Power Flow Controller Using Composite Severity Index for Contingency Management

Mishra¹,

Kumar

2015

Period. Polytech. Elec. Eng. Comp. Sci.

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Contingency assessment is an essential task for the stable and reliable operation of a power system as it predicts the effect of outages in transmission lines and generator units. In this paper, a recurrence of severity based placement strategy for Interline Power Flow Controller (IPFC) has been proposed. Contingency ranking of the lines has been done using Composite Severity Index. A probabilistic based strategy has been adopted for the placement of IPFC. IPFC is placed on the line which has the highest probability of severity during the occurrence for different outages. To verify the proposed methodology, it has been tested on IEEE 14 and 30 bus system. The load on the bus with highest load is further increased gradually up to the critical value and the results have been presented and analyzed to ascertain the effectiveness of IPFC for contingency management.

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