Apparatus, method and computer program product for tracking information in an electric grid

A method for tracking a signal of an electric grid, comprising:

• selecting a cross-coupled phase-lock-loop filter (CCPLL) comprising a plurality of PLL filters, wherein an input for a first PLL filter in the plurality of PLL filters comprises the signal of the electric grid and an output signal from at least a second PLL filter in the plurality of PLL filters;
• applying the signal of the electric grid to the CCPLL, the CCPLL producing an output signal;
• and,
• monitoring the output signal of the CCPLL to track the signal of the electric grid;
• wherein the electric grid is connected to an electric generation facility.

A computer program product stored on machine readable media comprising instructions for tracking a signal of an electric grid, the instructions comprising:

• selecting a cross-coupled phase-lock-loop filter (CCPLL) comprising a plurality of PLL filters, wherein an input for a first PLL filter in the plurality of PLL filters comprises the signal of the electric grid and an output signal from at least a second PLL filter in the plurality of PLL filters;
• applying the signal of the electric grid to the CCPLL, the CCPLL producing an output signal;
• and,
• monitoring the output signal of the CCPLL to track the signal of the electric grid;
• wherein the electric grid is connected to an electric generation facility.