Control to output dynamic response and extend modulation index range with hybrid selective harmonic current mitigation-PWM and phase-shift PWM for four-quadrant cascaded H-bridge converters
US10601305B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2018 |
| Grant date | Mar 24, 2020 |
| Priority date | — |
| Expiry date | Jan 30, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A hybrid Cascaded H-Bridge (CHB) converter can include a selective harmonic current mitigation pulse width modulation (SHCM-PWM) unit coupled to an input current and providing an output signal SWSHCM, a phase shift pulse width modulation (PSPWM) unit coupled to the input current and providing an output signal SWPS, a modulation selector coupled to the output signal SWSHCM of the SHCM-PWM unit and the output signal SWPS of the PSPWM unit and providing an output signal SW, and a CHB converter coupled to the output signal SW of the modulation selector. The modulation selector can select one of the output signals (SWSHCM and SWPS) as the output signal SW based on the input current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.