Bus voltage secondary ripple suppression method and device
US11121619B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 11, 2020 |
| Grant date | Sep 14, 2021 |
| Priority date | — |
| Expiry date | Jun 11, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/0022
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The disclosure discloses a bus voltage secondary ripple suppression method and a bus voltage secondary ripple suppression device. The method includes: determining a current working mode of an inverter Boost circuit; wherein the working mode includes a continuous current mode (CCM) and a discontinuous current mode (DCM); calculating an output compensation amount according to the current working mode of the inverter Boost circuit; superimposing the output compensation amount on a control output amount of the Boost circuit; and controlling the Boost circuit by a control output amount superimposed with an output compensation amount. According to the scheme of this embodiment, the third harmonic in the output current of the inverter is reduced, and the current output quality of the inverter is improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.