Power converter and method for operating the power converter
US11837969B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2022 |
| Grant date | Dec 5, 2023 |
| Priority date | — |
| Expiry date | Jun 4, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/327
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method operates a power converter having power converter arms, which are switchable between in each case an AC voltage side and a DC voltage side or connectable to phase lines of an AC voltage power supply system. Each power converter arm has a series circuit of switching modules each having a plurality of semiconductor switches and an energy store, in which at least one temperature value for the power converter is determined. A setpoint current limitation value is determined taking into consideration the temperature value, and a setpoint current value is determined taking into consideration the setpoint current limitation value. The temperature value, the arm setpoint current value, the arm actual current value and/or the arm setpoint current limitation value is time-integrated to form an arm integral value. When the arm integral value reaches or exceeds a predetermined arm integral threshold value, a protective measure is performed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.