Self-synchronized synchronverters: Inverters without a dedicated synchronization unit

QC Zhong, PL Nguyen, Z Ma… - IEEE Transactions on …, 2013 - ieeexplore.ieee.org
A synchronverter is an inverter that mimics synchronous generators, which offers a
mechanism for power systems to control grid-connected renewable energy and facilitates …

Improved synchronverters with bounded frequency and voltage for smart grid integration

QC Zhong, GC Konstantopoulos… - IEEE Transactions on …, 2016 - ieeexplore.ieee.org
Synchronverters are grid-friendly inverters that mimic conventional synchronous generators
and play an important role in integrating different types of renewable energy sources …

Synchronverters: Inverters that mimic synchronous generators

QC Zhong, G Weiss - IEEE transactions on industrial …, 2010 - ieeexplore.ieee.org
In this paper, the idea of operating an inverter to mimic a synchronous generator (SG) is
motivated and developed. We call the inverters that are operated in this way …

Virtual synchronous machines: A unified interface for grid integration

QC Zhong - IEEE Power Electronics Magazine, 2016 - ieeexplore.ieee.org
Power systems are going through a paradigm change from centralized generation to
distributed generation and further on to smart grids. More and more renewable-energy …

Benchmarking of phase locked loop based synchronization techniques for grid-connected inverter systems

Y Yang, L Hadjidemetriou, F Blaabjerg… - 2015 9th international …, 2015 - ieeexplore.ieee.org
Grid-connected renewables are increasingly developed in recent years, eg wind turbine
systems and photovoltaic systems. Synchronization of the injected current with the grid is …

Global phase and magnitude synchronization of coupled oscillators with application to the control of grid-forming power inverters

M Colombino, D Groß, JS Brouillon… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
In this paper, we explore a new approach to synchronization of coupled oscillators. In
contrast to the celebrated Kuramoto model, we do not work in polar coordinates and do not …

Inducverters: PLL-less converters with auto-synchronization and emulated inertia capability

M Ashabani, FD Freijedo, S Golestan… - IEEE Transactions on …, 2015 - ieeexplore.ieee.org
Inspired by induction machines working principles, this paper presents the idea of phase-
locked-loop-less (PLL-less) operation of grid-connected voltage source converters (VSCs) …

A synchronization scheme for single-phase grid-tied inverters under harmonic distortion and grid disturbances

L Hadjidemetriou, Y Yang, E Kyriakides… - IEEE Transactions on …, 2016 - ieeexplore.ieee.org
Synchronization is a crucial aspect in grid-tied systems, including single-phase photovoltaic
inverters, and it can affect the overall performance of the system. Among prior-art …

Synchronverters with better stability due to virtual inductors, virtual capacitors, and anti-windup

V Natarajan, G Weiss - IEEE Transactions on Industrial …, 2017 - ieeexplore.ieee.org
Synchronverters are inverters that mimic the behavior of synchronous generators. In this
paper, we propose five modifications to the synchronverter algorithm from the paper …

Static synchronous generators for distributed generation and renewable energy

QC Zhong, G Weiss - 2009 IEEE/PES Power Systems …, 2009 - ieeexplore.ieee.org
In this paper, the idea of operating an inverter as a synchronous generator is developed
after establishing a model for synchronous generators to cover all dynamics without any …