Modular Cascaded H-Bridge Multilevel PV Inverter With Distributed MPPT for Grid-Connected Applications
University of Tennessee at Knoxville · Southeast University · +1 more institution
Abstract
This paper presents a modular cascaded H-bridge multilevel photovoltaic (PV) inverter for single- or three-phase grid-connected applications. The modular cascaded multilevel topology helps to improve the efficiency and flexibility of PV systems. To realize better utilization of PV modules and maximize the solar energy extraction, a distributed maximum power point tracking control scheme is applied to both single- and three-phase multilevel inverters, which allows independent control of each dc-link voltage. For three-phase grid-connected applications, PV mismatches may introduce unbalanced supplied power, leading to unbalanced grid current. To solve this issue, a control scheme with modulation compensation is…
Citation impact
- FWCI
- 32.56
- Percentile
- 100%
- References
- 30
Authors
6- BXBailu XiaoCorresponding
University of Tennessee at Knoxville
- LHLijun Hang
University of Tennessee at Knoxville, Southeast University
- JMJun Mei
Southeast University, University of Tennessee at Knoxville
- CRCameron Riley
Oak Ridge National Laboratory, University of Tennessee at Knoxville
- LMLeon M. Tolbert
Oak Ridge National Laboratory, University of Tennessee at Knoxville
Topics & keywords
- Photovoltaic system
- Maximum power point tracking
- Modular design
- H bridge
- Inverter
- Electronic engineering
- Grid
- Solar micro-inverter
- Affordable and clean energy