Fault Analysis and Detection in Microgrids with High PV Penetration [electronic resource]

• Ngôn ngữ: eng
• Ký hiệu phân loại: 621.31 Generation, modification, storage, transmission of electric power
• Thông tin xuất bản: Washington, D.C. : Oak Ridge, Tenn. : United States. Office of Under Secretary of Energy for Energy and Environment ; Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2017
• Mô tả vật lý: Size: 46 p. : , digital, PDF file.
• Bộ sưu tập: Metadata
• ID: 256342
• Chủ đề: 1. 30 direct energy conversion; 2. 32 energy conservation, consumption, and utilization

Tóm tắt

In this report we focus on analyzing current-controlled PV inverters behaviour under faults in order to develop fault detection schemes for microgrids with high PV penetration. Inverter model suitable for steady state fault studies is presented and the impact of PV inverters on two protection elements is analyzed. The studied protection elements are superimposed quantities based directional element and negative sequence directional element. Additionally, several non-overcurrent fault detection schemes are discussed in this report for microgrids with high PV penetration. A detailed time-domain simulation study is presented to assess the performance of the presented fault detection schemes under different microgrid modes of operation.