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AncillaryServices.KirschenChapter5Slides.LTEdits.pdf

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Example: Voltage Stability<br />

A B<br />

• Case 1: No reactive support at B<br />

Load<br />

• 198 MW can be transferred from A to B before the voltage at B<br />

drops below 0.95 p.u.<br />

• However, the voltage collapses if a line is tripped when power<br />

transfer is larger than 166 MW<br />

• The maximum power transfer from A to B is thus 166 MW<br />

© Daniel Kirschen & Leigh Tesfatsion 2011 34

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