Normally we use Voltage Source Inverter ( Asymmetric bridge converter ) in controlling Switched Reluctance Motor, wouldn't it be better to supply current from Current Source Inverter directly to SRM. We know square shape unipolar current is given to SRM, so why use VSI, why not CSI?
Hi Noman,
Two reasons, in my opinion:
I am not counting on other negatives that are conventionally associated with the CSI (size, portability problems etc.), which are anyway there !
-Sanjay
In my little experience to design an SRM, I think the difficult stems from the fact that its fatal disadvantage is large di/dt in the phase shift period resulting huge voltage spike by the back EMF. [see the first link of Takanori Nagai] However, higher efficiencies can be achieved by careful design of the CSI. [see the second link of Tomohiro Takahashi] Also, as Sanjay said about the practicalities of the realization of CSIs are difficult than the realization of the VSIs.
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