These are some useful documents that can help to understand permanent magnetic synchronous generator (PMSG)

An FPGA-Based servo controller for permanent magnet synchronous motor (PMSM) drive is designed and realized in this paper. The FPGA-Based controller has two modules. One module performs the function of the current/speed loop control for PMSM

Representation of Synchronous Machines for Stability studies. The synchronous generator terminal conditions in turn depend on the interaction of the synchronous generator with the network conditions. While representing a synchronous machine in