Synchronous Generator Power Factor

[Chin2]

Hello everyone,

I am a new member to this forum and would like to ask a little help from you guys. I am designing a Permanent Magnet Synchronous Generator (PMSG) for a Wind turbine application which is of direct drive (DD) type. Being a DD type PMSG the frequency of the output is very low and hence I had to employ converter Inverter pair to improve the frequency. Now, how do I calculate the power factor (PF) of the PMSG? As the PMSG is not directly connected to the load, I believe that the PF does not depend on the load nature. Can someone help me by providing any equations or any research papers and any other material that can help me finding out the PF of the PMSG.

Thank you very much.

 

[Chin2]

Thank you one and all for your valuable time and suggestions.
jpts, Thank your for taking so much time and effort to give me that file. The power rating of the generator is 4MW.

LionelHutz, The load is not decided yet. but the rectifier inverter pair is used to bump up the frequency of the power output of the generator. The PMSG I am considering is of direct drive type and hence the frequency of it is very low. I got some papers and other documents to support the usage of 0.9 to 0.95 lagging power factor for a generator with a rectifier load. Many papers showed that they have used this high power factor value. Hence, I might end up using the same

At this moment I thank one and all for your support.