US Patent Issued to HITACHI ENERGY on July 29 for "Providing a frequency of an electrical quantity in an electrical power system" (Swedish Inventor)

ALEXANDRIA, Va., July 30 -- United States Patent no. 12,372,560, issued on July 29, was assigned to HITACHI ENERGY LTD (Zurich).

"Providing a frequency of an electrical quantity in an electrical power system" was invented by Tord Bengtsson (Vasteras, Sweden).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for providing a frequency of an electrical quantity in an electrical power system comprises obtaining, with respect to a first time, a first discrete Fourier transform (DFT) phasor of an electrical quantity in the electrical power system, estimating a second DFT phasor at a time interval before the first time, where the time interval depends on an approximated frequency, and determining the frequency...