New current feed back control method for solar energy inverter using digital signal processor

Author

Takebayashi, Tsukasa ; Nakata, Hirofumi ; Eguchi, Masaki ; Kodama, Hirokazu

Author_Institution

Solar Energy Syst. Group, Sharp Corp., Nara, Japan

Volume

2

fYear

1997

fDate

3-6 Aug 1997

Firstpage

687

Abstract

A solar energy inverter for photovoltaic power systems connected to electric utility lines has been developed. It is a power conditioner with a high-frequency transformer link for residential use at a power level of 3 kW. This paper describes a new synchronous current feedback control method using a digital signal processor (DSP). An adaptive finite impulse response filter is introduced into the control scheme. This paper also suggests a new method for detecting power outages. It gives frequent changes to the frequency of the inverter output voltage using a distortion of the inverter output current

Keywords

DC-AC power convertors; FIR filters; adaptive filters; control system synthesis; electric current control; feedback; high-frequency transformers; invertors; photovoltaic power systems; power filters; power system control; power system interconnection; power transformers; 3 kW; PV power system invertor; adaptive finite impulse response filter; control design; control performance; digital signal processor; electric utility lines; high-frequency transformer link; output current distortion; power conditioner; power outage detection; synchronous current feedback control method; Adaptive control; Digital signal processing; Digital signal processors; Feedback control; Feeds; Inverters; Photovoltaic systems; Power industry; Programmable control; Solar energy;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Conversion Conference - Nagaoka 1997., Proceedings of the

Conference_Location

Nagaoka

Print_ISBN

0-7803-3823-5

Type

conf

DOI

10.1109/PCCON.1997.638280

Filename

638280