Coordination control method of multi-terminal VSC-HVDC transmission system
US10396561B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 1, 2013 |
| Grant date | Aug 27, 2019 |
| Priority date | — |
| Expiry date | Jan 1, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY04S10/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention discloses a coordination control method of a multi-terminal VSC-HVDC transmission system. If a direct current voltage master control station shuts down, a direct current voltage control slave station takes over direct current voltage control, and remaining convertor stations keep original control modes. The takeover steps comprise that under the condition that inter-station communications are effective, the master control station sends a shutdown message to the slave station through the inter-station communications, and when the slave station monitors that the direct current voltage master control station shuts down, the slave station switches a current control mode into a direct current voltage control mode; and under the condition that inter-station communications fail or inter-station communications are absent, the slave station monitors changes of the direct current voltage of a system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.