How do I implement a DC current source in SimPowerSystems?
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I would like to implement a DC current source in SimPowerSystems. The documentation of the AC Current Source block states the following:
A zero frequency specifies a DC current source.
However, when I insert an AC Current Source block and set the frequency to 0 Hz, the output current is always 0 A, regardless of what I enter as the peak amplitude.
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MathWorks Support Team
2022-10-14
编辑：MathWorks Support Team
2022-10-14
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This bug has been fixed in Release 14 Service Pack 2 (R14SP2). For previous releases, please read below for any possible workarounds:
You can implement a DC Current Source in SimPowerSystems in one of two ways:
1. Insert an AC Current Source block into your model
Set the Peak Amplitude parameter to the DC current and set the phase to either 90 degrees or -90 degrees, depending on the direction you want current to flow.
A reference to this can be found in the following link (AC Current Source-> Description)-
2. Insert a Controlled Current Source block into your model
Change the Source type parameter to DC and connect the input port with a Constant block that contains the value of the DC current.
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2011-4-14
2022-10-14
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