Active damping control for L-C output filters in three phase four-leg inverters
US6950321B2 · kind B2 · utility
24Cited by
10References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2003 |
| Grant date | Sep 27, 2005 |
| Priority date | — |
| Expiry date | Feb 15, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/123
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus are provided for controlling an inverter with an under-damped L-C filter connected to a load. Samples of the inverter output are processed to generate voltage regulation signals and damping signals. The voltage regulation signals include both regulating and imbalance compensating elements, and are further modified by the damping signals. The modified voltage regulation signals control the switching circuits of the inverter to stabilize the inverter output to the load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.