A big headache for electrical regulator boards is that of harmonic and interharmonic distortion. Failure to compensate for this will result in all sorts of problems throughout the grid.
In India, the majority of wind turbines convert mechanical power into electricity through directly connected induction generators. These induction generators require reactive power from the grid for excitation. The loads on the power systems in India also consume a significant reactive power, mainly due to agricultural pumps.
The resulting reactive power demand decreases transmission efficiency. Moreover, reactive power consumption is deleterious to the fundamental capacity of the power stations themselves as a result of the poor quality power factor unduced by the reactive power load. This becomes a critical issue when the available power station capacity is insufficient to supply the peak demand.
Finally, excessive reactive power consumption can be critical for the stability of the power system itself.
http://130.226.56.153/rispubl/VEA/veapdf/ris-r-1172.pdf
Bingo! Here’s the FERC Field Test document;
http://www.nerc.com/docs/standards/sar/2007-12_BAL-003-1_FR_Field_Test_Document_20110204.pdf
Here’s the operative quote;
“BAL-003-1 proposes to bring Frequency Bias Settings closer to Frequency Response. The drafting team proposes to reduce the minimum Frequency Bias Settings over a period of years. The drafting team proposes to establish a new minimum Frequency Bias Setting in 2011 (-0.8% of peak/0.1Hz, compared to the present -1% of peak/0.1Hz). The drafting team, NERC and the Resources Subcommittee will observe the impact on frequency and will implement a reversion plan as necessary.”
Looks to me like they are proposing tighter not looser frequency control and reading the other docs mainly between interconnections.