Hi

Its difficult to actually give you the solution to your error without actually seeing what the error is, so I suggest you to upload the snapshot of the error. In the meanwhile, you can refer to the following research article on VFT and PMSG implementation in SIMULINK

http://www.ugcfrp.ac.in/images/userfiles/65586-1-s2.0-S2213138814000800-main.pdf

hope it helps you in you design problem

regards

Thank you for your reply. Actually my reference paper is what you mentioned in the link. When I simulate, it is showing the following error with the solution also.

The following two blocks cannot be connected in series because they are modeled as current sources:

Block 1: A_rotor: Variable Frequency Transformer

Block 2: A: Permanent Magnet Synchronous Machine

Add a high-value resistance in parallel with one of the two block.

You can also specify high-value resistive snubbers if the blocks have a snubber device.

But even after connecting a high value resistance in parallel with it, still I am not getting the values/waveforms similar to that ref. paper.