Method of locating a fault in a power distribution system using a direct current signal of a distributed resource modulated by an alternating current signal
US9442153B1 · kind B1 · utility
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4Claims
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Key dates
| Filing date | Dec 8, 2015 |
| Grant date | Sep 13, 2016 |
| Priority date | — |
| Expiry date | Dec 15, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY04S10/52
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention provides a method to ensure that distributed resources of a power distribution system remain connected to the circuitry of the power distribution system when a fault occurs at a distributed resource node to assist in identifying the location of the fault by continuing to inject a direct current (DC) signal from the controllable voltage source converter of at least one DC voltage distributed resource into the distribution system and modulating an alternating current (AC) signal on top of the direct current (DC) signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.