Differential buck single phase grid connected AC-DC converter with active power decoupling using a flipping Capacitor
This paper introduces a new single-phase AC-DC converter capable of achieving independent voltage control across a dedicated power decoupling capacitor, by exploiting the same full bridge that controls the grid current in combination with two bidirectional switches, soft com¬mutated at the line freq...
| Main Authors: | , , , |
|---|---|
| Format: | Conference or Workshop Item |
| Published: |
2017
|
| Subjects: | |
| Online Access: | https://eprints.nottingham.ac.uk/46550/ |
| _version_ | 1848797352592146432 |
|---|---|
| author | Gottardo, Davide De Lillo, Liliana Empringham, Lee Costabeber, Alessando |
| author_facet | Gottardo, Davide De Lillo, Liliana Empringham, Lee Costabeber, Alessando |
| author_sort | Gottardo, Davide |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | This paper introduces a new single-phase AC-DC converter capable of achieving independent voltage control across a dedicated power decoupling capacitor, by exploiting the same full bridge that controls the grid current in combination with two bidirectional switches, soft com¬mutated at the line frequency (ZVS). A suitable control of the capacitor voltage is used to completely decouple pulsating grid power from the DC-link, enabling the use of smaller film capacitors instead of electrolytic capacitors for power decoupling, improving reliability and increasing power density. This is achieved without additional high switching frequency devices. Furthermore, the interference occurring between rectified grid current and power decoupling capac¬itor current is exploited in order to reduce the RMS current in the full bridge, thus improving conversion efficiency.
This work is being developed at University of Nottingham within the framework of project SENSIBLE. |
| first_indexed | 2025-11-14T20:02:31Z |
| format | Conference or Workshop Item |
| id | nottingham-46550 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T20:02:31Z |
| publishDate | 2017 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-465502020-05-04T18:42:02Z https://eprints.nottingham.ac.uk/46550/ Differential buck single phase grid connected AC-DC converter with active power decoupling using a flipping Capacitor Gottardo, Davide De Lillo, Liliana Empringham, Lee Costabeber, Alessando This paper introduces a new single-phase AC-DC converter capable of achieving independent voltage control across a dedicated power decoupling capacitor, by exploiting the same full bridge that controls the grid current in combination with two bidirectional switches, soft com¬mutated at the line frequency (ZVS). A suitable control of the capacitor voltage is used to completely decouple pulsating grid power from the DC-link, enabling the use of smaller film capacitors instead of electrolytic capacitors for power decoupling, improving reliability and increasing power density. This is achieved without additional high switching frequency devices. Furthermore, the interference occurring between rectified grid current and power decoupling capac¬itor current is exploited in order to reduce the RMS current in the full bridge, thus improving conversion efficiency. This work is being developed at University of Nottingham within the framework of project SENSIBLE. 2017-04-18 Conference or Workshop Item PeerReviewed Gottardo, Davide, De Lillo, Liliana, Empringham, Lee and Costabeber, Alessando (2017) Differential buck single phase grid connected AC-DC converter with active power decoupling using a flipping Capacitor. In: 8th International Symposium on Power Electronics for Distributed Generation Systems (PEDG 2017), 17-20 Apr 2017, Florianópolis, Brazil. Stress Power electronics http://ieeexplore.ieee.org/document/7972438/ |
| spellingShingle | Stress Power electronics Gottardo, Davide De Lillo, Liliana Empringham, Lee Costabeber, Alessando Differential buck single phase grid connected AC-DC converter with active power decoupling using a flipping Capacitor |
| title | Differential buck single phase grid connected AC-DC converter with active power decoupling using a flipping Capacitor |
| title_full | Differential buck single phase grid connected AC-DC converter with active power decoupling using a flipping Capacitor |
| title_fullStr | Differential buck single phase grid connected AC-DC converter with active power decoupling using a flipping Capacitor |
| title_full_unstemmed | Differential buck single phase grid connected AC-DC converter with active power decoupling using a flipping Capacitor |
| title_short | Differential buck single phase grid connected AC-DC converter with active power decoupling using a flipping Capacitor |
| title_sort | differential buck single phase grid connected ac-dc converter with active power decoupling using a flipping capacitor |
| topic | Stress Power electronics |
| url | https://eprints.nottingham.ac.uk/46550/ https://eprints.nottingham.ac.uk/46550/ |