SubtransientRoundRotorSimplifiedDirectAxis : Documentation diagram
Created: |
03/30/2012 10:19:58 PM |
Modified: |
04/18/2012 03:07:06 PM |
Project: |
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Author: |
ppbr003 |
Version: |
1.0 |
Advanced: |
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ID: |
{A77DE30E-0958-4c07-8086-D65A99457914} |
The Subtransient Round Rotor Simplified Direct Axis Type is modeled using one of the concrete child classes of the SynchronousMachineDetailed class. If the SynchronousMachineTimeConstantReactance class is used, .modelType = subtransientSimplifiedDirectAxis and .rotorKind = roundRotor. <br /></p><p>It is a simplified version of a Subtransient Round Rotor Type with no damper circuit on d-axis. This simplification contributes to a reduction in computational effort by reducing the order of the differential equation system. The q-axis has two equivalent rotor windings. Magnetic coupling between the direct and quadrature axes is ignored.<br /></p><p><b>Parameter Notes:</b><br /></p><p><ol><li>The effects of speed variation are neglected. </li><br /></p><p><li>No armature resistance.</li><br /></p><p><li>No saturation effects.</li><br /></p><p><li>No subtransient saliency.</li><br /></p><p><li>Direct Axis with field circuit only, no equivalent damper circuit. Approximation: <b>X'd</b> = <b>X''d</b>.</li><br /></p><p><li>Quadrature Axis with two equivalent damper circuit, <b>X''q</b> not = <b>X'q</b>.</li><br /></p><p><li>For generators and motors the following input parameters are needed: <b>Xd</b>, <b>X'd</b>, <b>T'do </b>and<b> Xq</b>, <b>X'q</b>, <b>X''q</b>, <b>T'qo</b>, <b>T''qo</b>.</li><br /></p><p></ol><br /></p>