Abstract
Due to their plug and play feature, easy installation, and higher power yield under partial shading conditions, microinverters have gained popularity in the roof-top-PV market. This paper explores a converter system for the transfomer-less microinverter with coupled inductor based interleaved boost as the dc-dc stage and half bridge voltage swing (HBVS) inverter as the dc-ac stage. The dc-dc stage is capable of offering high gain with a flexible choice of turns ratio of the coupled inductor but simultaneously maintaining a reduced voltage stress on the main switch. The HBVS inverter has the advantages of reduced capacitor requirement for 120 Hz power decoupling and being half-bridge derived, minimized capacitive-coupled common-mode ground currents. A 300 W GaN based inverter prototype with 30 V nominal dc input and 120 V, 60 Hz nominal ac output and operating at switching frequency of 200/100 kHz has been developed to validate the converter's operation in hardware.
| Original language | English (US) |
|---|---|
| Title of host publication | APEC 2018 - 33rd Annual IEEE Applied Power Electronics Conference and Exposition |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 381-386 |
| Number of pages | 6 |
| Volume | 2018-March |
| ISBN (Electronic) | 9781538611807 |
| DOIs | |
| State | Published - Apr 18 2018 |
| Event | 33rd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2018 - San Antonio, United States Duration: Mar 4 2018 → Mar 8 2018 |
Other
| Other | 33rd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2018 |
|---|---|
| Country | United States |
| City | San Antonio |
| Period | 3/4/18 → 3/8/18 |
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Keywords
- Active power decoupling
- Coupled inductor interleaved boost
- High gain boost
- Microinverter
- Minimized capacitance
- Transformer-less PV inverter
ASJC Scopus subject areas
- Electrical and Electronic Engineering
Cite this
GaN based transformer-less microinverter with coupled inductor interleaved boost and half bridge voltage swing inverter. / Roy, Jinia; Ayyanar, Raja.
APEC 2018 - 33rd Annual IEEE Applied Power Electronics Conference and Exposition. Vol. 2018-March Institute of Electrical and Electronics Engineers Inc., 2018. p. 381-386.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - GaN based transformer-less microinverter with coupled inductor interleaved boost and half bridge voltage swing inverter
AU - Roy, Jinia
AU - Ayyanar, Raja
PY - 2018/4/18
Y1 - 2018/4/18
N2 - Due to their plug and play feature, easy installation, and higher power yield under partial shading conditions, microinverters have gained popularity in the roof-top-PV market. This paper explores a converter system for the transfomer-less microinverter with coupled inductor based interleaved boost as the dc-dc stage and half bridge voltage swing (HBVS) inverter as the dc-ac stage. The dc-dc stage is capable of offering high gain with a flexible choice of turns ratio of the coupled inductor but simultaneously maintaining a reduced voltage stress on the main switch. The HBVS inverter has the advantages of reduced capacitor requirement for 120 Hz power decoupling and being half-bridge derived, minimized capacitive-coupled common-mode ground currents. A 300 W GaN based inverter prototype with 30 V nominal dc input and 120 V, 60 Hz nominal ac output and operating at switching frequency of 200/100 kHz has been developed to validate the converter's operation in hardware.
AB - Due to their plug and play feature, easy installation, and higher power yield under partial shading conditions, microinverters have gained popularity in the roof-top-PV market. This paper explores a converter system for the transfomer-less microinverter with coupled inductor based interleaved boost as the dc-dc stage and half bridge voltage swing (HBVS) inverter as the dc-ac stage. The dc-dc stage is capable of offering high gain with a flexible choice of turns ratio of the coupled inductor but simultaneously maintaining a reduced voltage stress on the main switch. The HBVS inverter has the advantages of reduced capacitor requirement for 120 Hz power decoupling and being half-bridge derived, minimized capacitive-coupled common-mode ground currents. A 300 W GaN based inverter prototype with 30 V nominal dc input and 120 V, 60 Hz nominal ac output and operating at switching frequency of 200/100 kHz has been developed to validate the converter's operation in hardware.
KW - Active power decoupling
KW - Coupled inductor interleaved boost
KW - High gain boost
KW - Microinverter
KW - Minimized capacitance
KW - Transformer-less PV inverter
UR - http://www.scopus.com/inward/record.url?scp=85046955423&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85046955423&partnerID=8YFLogxK
U2 - 10.1109/APEC.2018.8341039
DO - 10.1109/APEC.2018.8341039
M3 - Conference contribution
AN - SCOPUS:85046955423
VL - 2018-March
SP - 381
EP - 386
BT - APEC 2018 - 33rd Annual IEEE Applied Power Electronics Conference and Exposition
PB - Institute of Electrical and Electronics Engineers Inc.
ER -