US 11,726,132 B2
Monitoring power systems utilizing phase locked loop and RF emissions, and high frequency envelope detector for same
Yilmaz Sozer, Peninsula, OH (US); Jose Alexis De Abreu-Garcia, Akron, OH (US); and Mohammad Arifur Rahman, Akron, OH (US)
Assigned to The University of Akron, Akron, OH (US)
Filed by Yilmaz Sozer, Peninsula, OH (US); Jose Alexis De Abreu-Garcia, Akron, OH (US); and Mohammad Arifur Rahman, Akron, OH (US)
Filed on May 27, 2021, as Appl. No. 17/331,999.
Claims priority of provisional application 63/057,674, filed on Jul. 28, 2020.
Claims priority of provisional application 63/031,180, filed on May 28, 2020.
Prior Publication US 2021/0373066 A1, Dec. 2, 2021
Int. Cl. G01R 31/12 (2020.01); H03F 3/24 (2006.01); G01R 31/40 (2020.01); H03F 1/02 (2006.01)
CPC G01R 31/1272 (2013.01) [G01R 31/40 (2013.01); H03F 1/0233 (2013.01); H03F 3/245 (2013.01); H03F 2200/105 (2013.01); H03F 2200/451 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A failure detection system for an energy network, the failure detection system comprising
a radio frequency (RF) receiver adapted to be coupled with or in close proximity to the energy network, the RF receiver providing an amplitude modulated RF signal;
an RF amplifier receiving the amplitude modulated RF signal and providing an amplified signal;
an envelope detector receiving the amplitude modulated RF signal and providing a demodulated envelope signal;
an optional algorithm implementation system receiving the demodulated envelope signal, where the optional algorithm implementation system processes the demodulated envelope signal by one or more of a Fast Fourier transform (FFT) trigger system and a phase-locked loop (PLL) trigger system; and
a signature output that is the overall output signal of the failure detection system, wherein the signature output is adapted to indicate whether the energy network is experiencing partial discharge.