Modulation method for a three-phase multilevel converter
US10097110B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 1, 2018 |
| Grant date | Oct 9, 2018 |
| Priority date | — |
| Expiry date | Mar 1, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P2209/11
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention discloses a modulation method for a three-phase multilevel converter. The modulation method comprises the following steps: generating first three-phase sinusoidal modulated wave signals by a control loop in the three-phase multilevel converter; generating second three-phase modulated wave signals by processing the first three-phase sinusoidal modulated wave signals, wherein in proximity to peak values of a line voltage of the second three-phase modulated wave signals, absolute values of any two phases are unequal; generating PWM pulse signals based on the second three-phase modulated wave signals; and generating driving signals for respective power units in the three-phase multilevel converter based on the PWM pulse signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.