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Some researchers say that utilities pay billions a year to power plants to stand by, ready to produce extra power or to provide small quantities of energy to maintain the frequency of the system at precisely 60 cycles a second.
So, it is of great importance to maintain the frequency at its nominal value.
The AW-XWVD maintains the frequency resolution through the window adaptation and yields better accuracy for the IIB-phase estimate.
Using EVs to maintain the frequency stability can significantly reduce the frequency deviations along the whole day.
To maintain the frequency stability, the upper/lower frequency limit of the GB power system is 49.5/50.5 Hz [11].
When the engine control is used, the proposed control strategy maintains the frequency close to the reference, 60 Hz, with a maximum Δf of −0.23 %.
With the extra frequency support from the DFIG, the microgrid system can deploy smaller capacity/size ES to maintain the frequency stability.
It maintains the frequency characteristics of the original LFM and avoids high demand of the phase-modulated signal for strict synchronization and equalization of the receiver.
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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com