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Simulator 16 User Guide - PowerWorld

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Transient Stability Overview : DC Transmission Lines<br />

For transient stability simulations, DC transmission lines without a dynamic model specified are<br />

modeled as part of the algebraic network equations in much the same way they are modeled in a<br />

power flow solution for steady state analysis. The only exception when moving to a stability simulation<br />

is that all DC lines (as well as DC converters for multi-terminal DC lines) are assumed to operate in<br />

current control mode during the stability simulation. For those which are configured for power control<br />

mode in the steady state power flow input, <strong>Simulator</strong> will change the control mode to current and<br />

change the setpoint to the steady state current on the device.<br />

©2011 <strong>PowerWorld</strong> Corporation<br />

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