Modular multilevel converter capacitor voltage ripple reduction
| dc.contributor.assignee | Virginia Tech Intellectual Properties, Inc. | en |
| dc.contributor.inventor | Lyu, Yadong | en |
| dc.contributor.inventor | Lee, Fred C. | en |
| dc.contributor.inventor | Li, Qiang | en |
| dc.contributor.inventor | Hsieh, Yi-Hsun | en |
| dc.date.accessed | 2021-03-23 | en |
| dc.date.accessioned | 2021-03-25T18:15:41Z | en |
| dc.date.available | 2021-03-25T18:15:41Z | en |
| dc.date.filed | 2016-08-17 | en |
| dc.date.issued | 2019-09-03 | en |
| dc.description.abstract | Aspects of capacitor voltage ripple reduction in modular multilevel converters are described herein. In one embodiment, a power converter system includes a modular multilevel converter (MMC) electrically coupled and configured to convert power between two different power systems. The MMC includes one or more phase legs having a cascade arrangement of switching submodules, where the switching submodules include an arrangement of switching power transistors and capacitors. The MMC further includes a control loop including a differential mode control loop and a common mode control loop. The differential control loop is configured to generate a differential control signal based on a target modulation index to reduce fundamental components of voltage ripple on the capacitors, and the common mode control loop is configured to inject 2nd order harmonic current into a common mode control signal to reduce 2nd order harmonic components of the voltage ripple on the capacitors. | en |
| dc.format.mimetype | application/pdf | en |
| dc.identifier.applicationnumber | 15239165 | en |
| dc.identifier.patentnumber | 10404064 | en |
| dc.identifier.uri | http://hdl.handle.net/10919/102821 | en |
| dc.identifier.url | http://pimg-fpiw.uspto.gov/fdd/64/040/104/0.pdf | en |
| dc.language | en | en |
| dc.publisher | United States Patent and Trademark Office | en |
| dc.subject.cpc | H02J3/01 | en |
| dc.subject.cpc | H02M1/15 | en |
| dc.subject.cpc | H02J5/00 | en |
| dc.subject.cpc | H02M2007/4835 | en |
| dc.title | Modular multilevel converter capacitor voltage ripple reduction | en |
| dc.type | Patent | en |
| dc.type.dcmitype | Text | en |
| dc.type.patenttype | utility | en |
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