How do I model a Compound DC machine using SimPowerSystems 4.1.1 (R14SP3)?

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I would like to model a Compound DC machine using SimPowerSystems. However, it seems like the DC machine block can only be used as a series or shunt connected configuration.

Accepted Answer

MathWorks Support Team
MathWorks Support Team on 23 Apr 2012
A Compound DC machine can be implemented in SimPowerSystems by modifying the DC machine block in the Machines library. In order to do so, perform the following steps:
1. Drag the DC machine block to a model window and right click on it.
2. Select “Disable Link” from the “Link Options” menu. You can now edit the block.
3. Right click on the block again and select “Look Under Mask”. The resulting window shows the implementation of the DC machine using simpler blocks.
4. You can now change the connections to implement a long or short shunt Compound DC machine and save it.
The attached model file illustrates a Compound machine implementation. This example can be used as a reference to make the connection changes to match the desired configuration.

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