Current Volume 8
Abstract
Synchronization and islanding detection represent some of the main issues for grid-connected photovoltaic systems (PVSs). The amount of distribute generation connected to the distribution network is increasing. The synchronization technique allows to achieve PVS high power factor operation and it provides grid voltage a combined review is advantageous. To use this resource more effectively, splitting of the distribution network, or islanding the system, for prevention of power outages is being considered by some utilities. . The islanding detection control function ensures safe operation of the PVS. Focusing on low-power single-stage PVSs, in this study the most adopted and the highest performance synchronization and islanding detection methods are discussed. The role of the synchronization system is fundamental to detect the grid conditions, for the islanding detection purpose, and to manage the reconnection to the grid after a PVS trip. avoids out-of synchronism re-closure is proposed. The island is kept in synchronism with the rest of the utility while it is not electrically connected. This is referred to as synchronous islanded operation. A phase difference control algorithm, developed by the authors, was tested in a single set scenario on a 50-kVA diesel generator using two different governors. These are the “standard product” variable gain governor of the diesel generator and a governor developed by the authors, which utilizes supplementary inputs in addition to engine speed.
Keywords
photovoltaic systems; synchronization systems; phase locked loops; islanding detection methods
Citations
IRE Journals:
Gandhi Yarra
"Analysis of Synchronization and Islanding Detection Methods for Single-Stage Microgrids" Iconic Research And Engineering Journals Volume 6 Issue 5 2022 Page 121-133
IEEE:
Gandhi Yarra
"Analysis of Synchronization and Islanding Detection Methods for Single-Stage Microgrids" Iconic Research And Engineering Journals, 6(5)
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