Energy-Balancing Control of a Delta-Configured Modular Multilevel Cascade Inverter for Utility-Scale Photovoltaic Systems

被引：0

作者：

Sochor, Paul ^{[1
]}

Akagi, Hirofumi ^{[1
]}

机构：

[1] Tokyo Inst Technol, Dept Elect & Elect Engn, 2-12-1 Ohokayama, Tokyo 152, Japan

来源：

2015 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE) | 2015年

关键词：

Cascaded multilevel inverters; delta connection; energy balancing; utility-scale grid-tied photovoltaics; REACTIVE-POWER-CONTROL; PWM STATCOM; CONVERTER;

D O I：

暂无

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

This paper provides a theoretical discussion on energy-balancing control and capability of a modular multilevel cascade inverter (MMCI) based on single-delta bridge cells (SDBC). The SDBC inverter is intended for applications to utility scale grid-tied photovoltaic (PV) systems involving asymmetric power generation. The distributed nature of electric power generated from individual power sources requires the inverter to be capable of operating under imbalanced conditions. As compared to a star-configured MMCI based on single-star bridge cells (SSBC), the SDBC inverter features a superior energy balancing capability making it more suitable for these kinds of applications. This paper discusses the control, operational behavior, and limitations of a phase-shifted carrier pulsewidth modulated (PWM) SDBC inverter under imbalanced conditions among both bridge cells and clusters.

引用

页码：4706 / 4713

页数：8