The Design and Implementation of Photovoltaic Grid-connected Simulating Device Based on FPGA

Author

Wen, Feng ; Diao, Zhaokui ; Chao, Yuan ; Mo, Runquan

Author_Institution

Nat. Key Lab. of Electron. Meas., Technol. North Univ. of China, Taiyuan, China

fYear

2010

fDate

28-31 March 2010

Firstpage

1

Lastpage

4

Abstract

A kind of photovoltaic grid-connected device is designed based on FPGA in this paper. The system can achieve maximum power point tracking (MPPT) and the auto-adjustment of frequency and phase in grid-connecting. It consists of auxiliary fly-back switch power, full-bridge DC/AC converter, LC filter and some protecting circuit etc. The device possesses the high speed of MPPT adjustment and tracking of frequency and phase, with frequency ranging from 30 Hz to 60 Hz, deviation below 0.4%, stability above 99.5%, converting efficiency nearly 80%. The system runs stably and reliably and can be used in grid-connecting projects.

Keywords

DC-AC power convertors; field programmable gate arrays; maximum power point trackers; photovoltaic power systems; power engineering computing; FPGA; LC filter; MPPT; fly-back switch power; frequency 30 Hz to 60 Hz; full-bridge DC-AC converter; maximum power point tracking; photovoltaic grid connected simulating device; protecting circuit; Analog-digital conversion; Field programmable gate arrays; Filters; Frequency conversion; Photovoltaic systems; Power system protection; Solar power generation; Switches; Switching circuits; Switching converters;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Engineering Conference (APPEEC), 2010 Asia-Pacific

Conference_Location

Chengdu

Print_ISBN

978-1-4244-4812-8

Electronic_ISBN

978-1-4244-4813-5

Type

conf

DOI

10.1109/APPEEC.2010.5448886

Filename

5448886