A basic study on novel islanding detection method for photovoltaic inverters by positive feedback of harmonic voltage. Issue 1 (1st January 2016)

• Record Type: Journal Article
• Authors: Yoshida, Yoshiaki; Suzuki, Hirokazu
• Is Part Of: Journal of International Council on Electrical Engineering. Volume 6:Issue 1(2016)
• Page Start: 160
• Page End: 165
• Publication Date: 2016-01-01
• Subjects: Distributed generator -- islanding detection -- harmonic voltage detection -- estimation of synchronous phase angle -- positive feedback; Electrical engineering -- Periodicals; Electrical engineering; Periodicals; 621.3
• DOI: 10.1080/22348972.2016.1202397
• Languages: English
• ISSNs: 2233-5951

Abstract

Abstract: We have proposed an islanding detection method using the harmonic current as an active signal. In particular, in order to inject the active signal efficiently, we have proposed a method to synchronize the harmonic voltage caused by the active signal of DG with the harmonic voltage caused by the harmonic current of the load. To verify the validity of the proposed methods, we performed the simulation by PSCAD/EMTDC and the calculation by circuit theory. We clarified that the synchronous injection can be greatly reduced the islanding detection time.