Development of fault detection system in PV system

Author

Shimakage, Toyonari ; Nishioka, Kojiro ; Yamane, Hiroshi ; Nagura, Masashi ; Kudo, Mitsuru

Author_Institution

R&D Headquarters, NTT Facilities, Inc., Tokyo, Japan

fYear

2011

fDate

9-13 Oct. 2011

Firstpage

1

Lastpage

5

Abstract

A fault detection system in PV system has been developed. The accuracy of PV module fault detection using AC output data in the PV system is discussed. First, the output characteristics in a faulty PV array were determined by using a fault simulation PV system. Second, the following three fault detection methods were developed. Method 1: Comparison of measured output value and estimated value derived from measured irradiation. Method 2: Comparison of present and past performance ratios (PRs). Method 3: Comparison of present and past output differences in an intersystem. Third, the fault detection accuracy in the proposed methods was evaluated on the basis of the experimental results.

Keywords

photovoltaic power systems; power generation faults; AC output data; fault detection system; fault simulation PV system; faulty PV array; past output differences; past performance ratios; present output differences; present performance ratios; Accuracy; Monitoring; PV system; accuracy; fault detection; fault simulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications Energy Conference (INTELEC), 2011 IEEE 33rd International

Conference_Location

Amsterdam

ISSN

2158-5210

Print_ISBN

978-1-4577-1249-4

Electronic_ISBN

2158-5210

Type

conf

DOI

10.1109/INTLEC.2011.6099727

Filename

6099727