Converters for HVDC power transmission and distribution
US10361622B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2016 |
| Grant date | Jul 23, 2019 |
| Priority date | — |
| Expiry date | Nov 22, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/60
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In the field of high voltage direct current power transmission and distribution there is provided a converter which includes first and second DC terminals for connection to a DC electrical network and between which extends converter limbs. Each converter limb includes first and second limb portions that are separated by an AC terminal for connection to a respective phase of a multi-phase AC electrical network. Each limb portion includes a current sensor to measure current flowing in the corresponding limb portion. The converter also includes further current sensors, located elsewhere in the converter, and a current sensor management unit. The current sensor management unit is programmed to: receive a measured current value from each current sensor; identify at least one faulty current sensor from the received measured current values; and replace the measured current value of the or each identified faulty current sensor with a calculated current value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.