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Determination of interface flow margin for voltage stability analysis using the modified continuation power flow

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5 Author(s)
Hwachang Song ; Sch. of Electr. Eng., Korea Univ., Seoul, South Korea ; Seulki Kim ; Byongjun Lee ; Sae-Hyuk Kwon
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This paper introduces a new concept of interface flow margin in terms of steady-state voltage stability. The interface flow margin is the active power flow margin of the key transmission lines between one region and others under a fixed load demand condition. In addition, the paper proposes a technique to trace interface flow-voltage (f-V) curves by applying a continuation method. From the f-V curves, interface flow margin can be easily obtained, which is useful to determine secure flow limit of the specified interface. In the case study, illustrative examples with the New England 39-bus system and a practical 771-bus system are shown

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Power Engineering Society Summer Meeting, 2000. IEEE  (Volume:1 )

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