articleIEEE Transactions on Power ElectronicsApr 17, 2013Closed access

Self-Synchronized Synchronverters: Inverters Without a Dedicated Synchronization Unit

QZQing‐Chang ZhongPNPhi-Long NguyenZMZhenyu MaWSWanxing Sheng

University of Sheffield · Loughborough University · +2 more institutions

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Abstract

A synchronverter is an inverter that mimics synchronous generators, which offers a mechanism for power systems to control grid-connected renewable energy and facilitates smart grid integration. Similar to other grid-connected inverters, it needs a dedicated synchronization unit, e.g., a phase-locked loop (PLL), to provide the phase, frequency, and amplitude of the grid voltage as references. In this paper, a radical step is taken to improve the synchronverter as a self-synchronized synchronverter by removing the dedicated synchronization unit. It can automatically synchronize itself with the grid before connection and track the grid frequency after connection. This considerably improves the performance,…

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Topics & keywords

Topics
Keywords
  • Synchronization (alternating current)
  • Computer science
  • Phase-locked loop
  • Controller (irrigation)
  • Control theory (sociology)
  • Grid
  • Automatic frequency control
  • AC power
UN Sustainable Development Goals
  • Affordable and clean energy
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