Compact Single-Stage Micro-Inverter with Advanced Control Schemes for Photovoltaic Systems
SCIE
SCOPUS
- Title
- Compact Single-Stage Micro-Inverter with Advanced Control Schemes for Photovoltaic Systems
- Authors
- Choi, Yoon-Geol; Lee, Hyeon-Seok; Kang, Bongkoo; Lee, Su-Chang; Yoon, Sang-Jin
- Date Issued
- 2019-04
- Publisher
- MDPI
- Abstract
- This paper proposes a grid-connected single-stage micro-inverter with low cost, small size, and high efficiency to drive a 320 W class photovoltaic panel. This micro-inverter has a new and advanced topology that consists of an interleaved boost converter, a full-bridge converter, and a voltage doubler. Variable switching frequency and advanced burst control schemes were devised and implemented. A 320 W prototype micro-inverter was very compact and slim with 60-mm width, 310-mm length, and 30-mm height. In evaluations, the proposed micro-inverter achieved CEC weighted efficiency of 95.55%, MPPT efficiency >95% over the entire load range, and THD 2.65% at the rated power. The proposed micro-inverter is well suited for photovoltaic micro-inverter applications that require low cost, small size, high efficiency, and low noise.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/101137
- DOI
- 10.3390/en12071234
- ISSN
- 1996-1073
- Article Type
- Article
- Citation
- ENERGIES, vol. 12, no. 7, 2019-04
- Files in This Item:
-
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.