Monitoring power systems utilizing phase locked loop and RF emissions, and high frequency envelope detector for same
US11726132B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 2021 |
| Grant date | Aug 15, 2023 |
| Priority date | — |
| Expiry date | Sep 25, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/451
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A failure detection system for an energy network includes 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.