Results 11 to 20 of about 22,065 (311)
An Optimal Current Controller Design for a Grid Connected Inverter to Improve Power Quality and Test Commercial PV Inverters [PDF]
Grid connected inverters play a crucial role in generating energy to be fed to the grid. A filter is commonly used to suppress the switching frequency harmonics produced by the inverter, this being passive, and either an L- or LCL-filter.
Ali Algaddafi +3 more
doaj +2 more sources
Grid frequency support from inverter connected generation [PDF]
This paper presents a case study to demonstrate impact of current fleet of inverter connected generation (roof top photovoltaics and utility scale grid following inverters) that have been allowed to connect to power networks with no obligations to ...
Ahfock, Tony +6 more
core +1 more source
A fully decentralized control of grid-connected cascaded inverters [PDF]
2 Pages, 2 ...
Xiaochao Hou +5 more
openaire +2 more sources
Grid impedance variation and voltage harmonics may cause instability of the grid-connected inverter system and reduce the grid current quality under weak grid.
Liyong Yang +3 more
doaj +1 more source
Current-Limiting Droop Control of Grid-Connected Inverters [PDF]
A current-limiting droop controller is proposed\ud for single-phase grid-connected inverters with an\ud LCL filter that can operate under both normal and faulty\ud grid conditions. The controller introduces bounded nonlinear\ud dynamics and, by using nonlinear input-to-state stability\ud theory, the current-limiting property of the inverter is ...
Zhong, Q., Konstantopoulos, G.
openaire +2 more sources
Small-signal stability problems often occur when the inverter for renewable energy generation is connected to weak grid. A small-signal transfer function integrated model reflecting the interaction of grid impedance, phase locked-loop (PLL), and current ...
Zhiwei Xie +6 more
doaj +1 more source
New energy power generation devices are mostly located in weak power grid areas, where the grid voltage harmonic content is high. Affected by the grid voltage harmonics and switching characteristics, the current of the grid-connected inverter is prone to
TIAN Yuansong +3 more
doaj +1 more source
Robust repetitive feedback control of a three-phase grid connected inverter [PDF]
This paper discusses the design of a repetitive feedback controller for a grid-connected two-level three-phase voltagesource inverter connected between a DC source and the grid through an LCL filter.
Sharkh, S.M. +8 more
core +1 more source
Explored in this paper is the grid impedance effect on the stability of a single-phase grid connected inverter with an LC filter based on an analysis of the inverter output impedance.
Jiao Jiao, R. Mark Nelms
doaj +1 more source
The phase-locked loop of grid-connected inverters affects their output impedance characteristics and stability. Based on the NPC, three-level LCL grid-connected inverter, this article first analyzes the frequency characteristics of the improved moving ...
Wei Luo, Dafang Wei, Jianguo Jiang
doaj +1 more source

