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3 Phase PLL FPGA MATH Library

Hi everyone, 

 

I'm working on a grid-connected system with sBRIO 9606, and LabVIEW 2015. For modeling purposes, I want to know what kind of 3 Phase PLL structure is being used in the FPGA module, meaning is it a conventional SRF-PLL or something else.  The problem I'm facing is, I want a PLL of proportional gain (kp) as 60, and integral gain(ki) as 1400, but whenever I put these values, the system doesn't seem to work. Although I get good results when kp =6, and ki = 140 are entered. I'll be really grateful if someone can guide me with this issue. 

 

Thanks,

Ratik Mittal

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