Operation mode analysis for solving the partial shadow in a novel PV power generation system

Author

Qi Zhang ; Xiangdong Sun ; Yanru Zhong ; Lie Guo ; Matsui, Masaki

Author_Institution

Dept. of Electr. Eng., Xi´an Univ. of Technol., Xi´an, China

fYear

2014

fDate

18-21 May 2014

Firstpage

3489

Lastpage

3495

Abstract

A photovoltaic (PV) module integrated converter (PVMIC) composed of a PV panel and its parallel-connected bidirectional flyback converter is proposed for solving the partial shadow problems. The PVMIC includes sleeping mode, energy feedback mode, bypass-diode mode and DC module mode. Based on PVMIC, the novel PV generation system adjust the operating modes to accommodate the different shadow level and thus to ensure maximum power output of the PV array. In this approach, the PV system has higher conversion efficiency, higher PV output power and enhanced operation functions in the condition of partial shadow. The feasibility of proposed method is verified by the simulations and experimental results.

Keywords

maximum power point trackers; photovoltaic power systems; solar cells; DC module mode; MPPT; PV array; PV panel; PV power generation system; PVMIC; bypass diode mode; energy feedback mode; operating mode analysis; parallel connected bidirectional flyback converter; partial shadow problem; photovoltaic module integrated converter; sleeping mode; Medical services; DC module; PVMIC; bidirectional flyback converter; partial shadow problem;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE-ASIA), 2014 International

Conference_Location

Hiroshima

Type

conf

DOI

10.1109/IPEC.2014.6869997

Filename

6869997