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Recent Research Spotlight

In an ideal electrical grid, the frequency and voltage stay constant. However, when you have several sources of power, the variations in the amount of power generated create shifts in voltage and frequency.

In a traditional grid where the electricity flows in a single direction from generator to consumer, that’s relatively simple to achieve with a centralized control system of primary and secondary controls.
So-called “droop control” stabilizes voltage and frequency, which is good. However, it also tends to shift the frequency away from the North American standard of 60 Hz — and that can damage the appliances you plug into the grid. That’s why conventional grids add secondary control to shift the frequency back to 60 Hz...