Power distribution network estimation device
US8560263B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 17, 2011 |
| Grant date | Oct 15, 2013 |
| Priority date | — |
| Expiry date | Jan 19, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY04S40/121
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A device that estimates a positional relationship between loads individually connected through sensors to electric power-supply ends provided in a power distribution network includes a communication unit configured to change a resistance value located between each of electric power-supply ends and a ground terminal of each of sensors and measure a voltage value produced between each of the electric power-supply ends and the ground terminal; and a determination unit configured to acquire voltage values from the two selected sensors from among the sensors after a resistance value of one of the two sensors that has a higher acquired voltage value is changed, calculate a ratio between voltage values acquired before and after the resistance value is changed, and determine that the two sensors are connected to a branch circuit in a same system in the power distribution network, when each ratio about the two sensors is within a specified range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.