Transformerless inverter topologies for single-phase photovoltaic systems: A comparative review

MNH Khan, M Forouzesh, YP Siwakoti… - IEEE Journal of …, 2019 - ieeexplore.ieee.org
In photovoltaic (PV) applications, a transformer is often used to provide galvanic isolation
and voltage ratio transformations between input and output. However, these conventional …

Damping methods for resonances caused by LCL-filter-based current-controlled grid-tied power inverters: An overview

W Wu, Y Liu, Y He, HSH Chung… - IEEE Transactions …, 2017 - ieeexplore.ieee.org
Grid-tied voltage source inverters using LCL filter have been widely adopted in distributed
power generation systems (DPGSs). As high-order LCL filters contain multiple resonant …

Dynamic stability analysis of synchronverter-dominated microgrid based on bifurcation theory

Z Shuai, Y Hu, Y Peng, C Tu… - IEEE Transactions on …, 2017 - ieeexplore.ieee.org
In the traditional power grid, inverter-interfaced distributed energy resources are widely used
in microgrids such as conventional synchronous generators (SGs) in the traditional power …

Overview of transformerless photovoltaic grid-connected inverters

H Xiao - IEEE Transactions on Power Electronics, 2020 - ieeexplore.ieee.org
Transformerless grid-connected inverters (TLI) feature high efficiency, low cost, low volume,
and weight due to using neither line-frequency transformers nor high-frequency …

Review of soft-switching topologies for single-phase photovoltaic inverters

Y Chen, D Xu - IEEE Transactions on Power Electronics, 2021 - ieeexplore.ieee.org
Soft switching is one of the effective techniques to improve the efficiency and power density
of power electronics converters. This article presents a comprehensive review of the soft …

High-efficiency and high-density single-phase dual-mode cascaded buck–boost multilevel transformerless PV inverter with GaN AC switches

Q Huang, AQ Huang, R Yu, P Liu… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
This paper introduces a high-efficiency and high-density single-phase dual-mode cascaded
buck-boost multilevel transformerless photovoltaic (PV) inverter for residential application …

A four-switch single-stage single-phase buck–boost inverter

A Kumar, P Sensarma - IEEE Transactions on Power …, 2016 - ieeexplore.ieee.org
This paper proposes a single-phase, single-stage buck-boost inverter for photovoltaic (PV)
systems. The presented topology has one common terminal in input and output ports which …

Investigation of a fault-tolerant three-level T-type inverter system

S Xu, J Zhang, J Hang - IEEE Transactions on Industry …, 2017 - ieeexplore.ieee.org
In recent years, a three-level T-type inverter has attracted considerable attention due to its
advantages, such as simple structure and higher efficiency. However, the reliability of a …

A buck and boost based grid connected PV inverter maximizing power yield from two PV arrays in mismatched environmental conditions

S Dutta, K Chatterjee - IEEE Transactions on Industrial …, 2017 - ieeexplore.ieee.org
A single phase grid connected transformerless photovoltaic (PV) inverter, which can operate
either in buck or in boost mode, and can extract maximum power simultaneously from two …

Single-phase dual-mode interleaved multilevel inverter for PV applications

A Pourfaraj, M Monfared… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
A novel single-phase transformerless dual-mode interleaved multilevel inverter (DMIMI) is
proposed in this paper, which can inject a highly sinusoidal ac current to the grid even with …