Method and device for obtaining three-phase power flow of power distribution network with ungrounded transformers
US9625929B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 30, 2014 |
| Grant date | Apr 18, 2017 |
| Priority date | — |
| Expiry date | Jun 30, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/62
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for obtaining a three-phase power flow of a power distribution network and a device for obtaining a three-phase power flow of a power distribution network are provided. The method includes steps of: selecting a three-phase power transformer in the power distribution network and configuring a secondary side of the three-phase power transformer with an ungrounded neutral connection, such that the three-phase power transformer satisfies a preset voltage-current relationship; adding a constraint condition to the preset voltage-current relationship to correct a three-phase admittance matrix of the three-phase power transformer; and applying the three-phase admittance matrix to a preset algorithm to obtain a three-phase power flow of the power distribution network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.