Inverter design with high short-circuit fault current contribution
US12401268B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 28, 2023 |
| Grant date | Aug 26, 2025 |
| Priority date | — |
| Expiry date | Apr 4, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M7/537
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Methods and systems comprising an inverter comprising: a semiconductor-based power module that is overrated by a factor f1 having a value greater than two and configured to receive a DC signal and convert the DC signal into an AC signal; a saturable inductive grid filter configured to filter the AC signal; at least one sensor configured to produce a current measurement and a voltage measurement from the AC signal output from the saturable inductive grid filter; and a processor configured to compute adaptive controller gain values using at least the current measurement and temperature, and cause an adjustment to a gain of an inverter controller in accordance with the adaptive controller gain values to maintain stability when the saturable inductive grid filter saturates at high current operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.