4.8 kW low profile compact single-phase PV converter with GaN-Hemt
- Resource Type
- Conference
- Authors
- Sun, Huizhong; Yuan, Jing; Chen, Chen; Nishikawa, Takeo; Wang, Huai
- Source
- 2023 IEEE Applied Power Electronics Conference and Exposition (APEC) Applied Power Electronics Conference and Exposition (APEC), 2023 IEEE. :3007-3012 Mar, 2023
- Subject
- Power, Energy and Industry Applications
Power system measurements
Density measurement
Cooling
Switching frequency
Switching loss
Power electronics
Topology
GaN-HEMT
multilevel
PV converter
- Language
- ISSN
- 2470-6647
This paper proposes a multilevel compact two stages DC/AC converter for PV applications by employing GaN-HEMT devices. The proposed converter includes interleaved DC/DC stage and an seven level DC/AC stage. In the proposed converter, the low input current ripple can be obtained due to the interleaving structure in the DC/DC stage while the higher switching frequency can be achieved in the DC/AC stage without sacrificing the switching loss because of the multilevel ANPC topology. Moreover, a detailed component optimization and control algorithm is presented in the paper. A 4.8 kW compact natural cooling PV converter with a 1.37 kW/L power density was developed to validate the effectiveness of the proposed converter.