Problems and countermeasures on safety of utility grid with a number of small-scale PV systems

Author

Kobayashi, H. ; Takigawa, K. ; Hashimito, E. ; Kitamura, A. ; Matsuda, H.

Author_Institution

Central Res. Inst. of Electr. Power Ind., Tokyo, Japan

fYear

1990

fDate

21-25 May 1990

Firstpage

850

Abstract

Utility interconnection and control technologies for small-scale dispersed PV (photovoltaic) systems are being studied at the Rokko Island 200 kV PV test facility in Kobe, Japan. Some safety problems of the utility grid are being investigated. Some results of experiments conducted to date are reported. It was found that the operation of the protective relay installed in the utility substation is influenced by the PV systems´ power output on a short-circuit fault of the distribution line. In addition, it was confirmed that the automatic reclosing operation of the grid to separate the line fault section is interfered with by an islanding phenomenon. Some methods for preventing the run-on or islanding phenomenon on the distribution line with a number of PV systems were demonstrated, and results are reported

Keywords

photovoltaic power systems; power system interconnection; safety; 200 kV; Japan; Kobe; PV test facility; Rokko Island; automatic reclosing operation; control technologies; line fault section; protective relay; safety; short-circuit fault; small-scale PV systems; utility grid; utility interconnection; Circuit faults; Circuit simulation; Circuit testing; Integrated circuit interconnections; Power system interconnection; Power system protection; Safety; Substations; System testing; Test facilities;

fLanguage

English

Publisher

ieee

Conference_Titel

Photovoltaic Specialists Conference, 1990., Conference Record of the Twenty First IEEE

Conference_Location

Kissimmee, FL

Type

conf

DOI

10.1109/PVSC.1990.111741

Filename

111741