Method for analyzing operation state of substation by combining whole grid model with local grid model
US9851415B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 30, 2015 |
| Grant date | Dec 26, 2017 |
| Priority date | — |
| Expiry date | Apr 24, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY04S40/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The disclosure relates to the crossing field between a power transmission of an ultra-high-voltage and a power system simulation, specifically a method for analyzing an operation state of a substation by combining a whole grid model with a local grid model is provided according to the disclosure. The method includes following steps: performing a load flow calculation for the provincial grid to which a ultra-high-voltage line belongs, wherein initial data of the load flow calculation employs a grid model with E format for national power grid dispatching control center; making an equivalent transform for the model, forming an island independently from the provincial grid to which a ultra-high-voltage line belongs, and making a load flow calculation for the island to acquire data of node voltages and line transmission power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.