Topology identification in distribution network with limited measurements
US9287713B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 26, 2012 |
| Grant date | Mar 15, 2016 |
| Priority date | — |
| Expiry date | Nov 8, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY04S20/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A statistical technique is used to estimate the status of switching devices (such as circuit breakers, isolator switches and fuses) in distribution networks, using scares (i.e., limited or non-redundant) measurements. Using expected values of power consumption, and their variance, the confidence level of identifying the correct topology, or the current status of switching devices, is calculated using any given configuration of real time measurements. Different topologies are then compared in order to select the most likely topology at the prevailing time. The measurements are assumed as normally distributed random variables, and the maximum likelihood principle or a support vector machine is applied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.