Results 171 to 180 of about 490 (210)
Some of the next articles are maybe not open access.
Minimization of the DC Component in Three-Phase Transformerless Grid-Connected PV Systems
2017 10th International Conference on Intelligent Computation Technology and Automation (ICICTA), 2017At present, the research on the quality of micro-grid power at home and abroad is still at the initial stage, which focuses on the study of the power quality characteristics of micro-sources. There is little research on the quality control of micro-grid power and the power quality adjustment device for microgrid.
Teng Yun +4 more
openaire +1 more source
Review of Common-Mode Voltage in Transformerless Inverter Topologies for PV Systems
2012When a galvanic connection between the grid and the PV array is made, a common-mode voltage exists which generates common-mode currents. These common-mode currents may produce electromagnetic interferences, grid current distortion and additional losses in the system. Therefore, to avoid the leakage currents that would penalize the transformerless power
Tarak Salmi +3 more
openaire +1 more source
Leakage current suppression for transformerless inverter for grid connected PV power systems
2014 International Conference on Electronics, Communication and Computational Engineering (ICECCE), 2014Due to the driving worldwide environmental demand for the renewable energy resources the photovoltaic power market in the recent years experiences certain amount of the innovations regarding the construction and the operation of the inverter connected to the grid.
S. Ayswarya, P. Prabhu
openaire +1 more source
Real-time measurement method of dc injection for transformerless PV systems
Measurement, 2011Abstract Measurement of dc injection is crucial for the transformerless PV systems. IEEE Std.929-2000 specifies that the PV systems shall not inject the dc current greater than 0.5% of the full rated output current. Dc injection measurement is not only useful for evaluating whether a transformerless PV system meets IEEE standards, but also for the ...
openaire +1 more source
H5-HERIC based transformerless multilevel inverter for single-phase grid connected PV systems
IECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society, 2015Transformerless photovoltaic systems are one of the best options to connect a photovoltaic system to the electrical grid given their high efficiency, low cost, small size and low weight regarding their counterparts based on a transformer. In this paper a multilevel single-phase inverter is aimed to link a photovoltaic generator with the electrical grid
Gerardo Vázquez +5 more
openaire +1 more source
IEEE Transactions on Industrial Electronics, 2018
Three-phase cascaded inverter with leakage current reduction for the transformerless PV system is investigated in this paper. The common-mode loop model of the conventional three-phase cascaded H4 grid-connected inverter is established. The relationship among the leakage current, common-mode voltage, and differential mode voltage is analyzed.
Xiaoqiang Guo 0002 +4 more
openaire +1 more source
Three-phase cascaded inverter with leakage current reduction for the transformerless PV system is investigated in this paper. The common-mode loop model of the conventional three-phase cascaded H4 grid-connected inverter is established. The relationship among the leakage current, common-mode voltage, and differential mode voltage is analyzed.
Xiaoqiang Guo 0002 +4 more
openaire +1 more source
IEEE Transactions on Industrial Electronics, 2016
Leakage current reduction of the single-phase transformerless cascaded H-bridge PV inverter is investigated in this paper. The high-frequency common-mode loop model of a typical single-phase cascaded H-bridge PV system is established. Based on the model, the main factors that affect the leakage current are discussed.
Xiaoqiang Guo 0002, Xiaoyu Jia
openaire +1 more source
Leakage current reduction of the single-phase transformerless cascaded H-bridge PV inverter is investigated in this paper. The high-frequency common-mode loop model of a typical single-phase cascaded H-bridge PV system is established. Based on the model, the main factors that affect the leakage current are discussed.
Xiaoqiang Guo 0002, Xiaoyu Jia
openaire +1 more source
Single Phase Integrated Ćuk Transformerless SiC Inverter for Grid-Connected PV Systems
2018 1st Workshop on Wide Bandgap Power Devices and Applications in Asia (WiPDA Asia), 2018This paper proposes a new single-phase transformerless inverter, using the principle of Cuk converter for grid-connected photovoltaic (PV) systems. The new inverter has a common ground between the grid and the PV source, which helps to eliminate the leakage current in grid-connected PV application.
Saikat Ghosh +4 more
openaire +1 more source
LCOE reduction for megawatts PV system using efficient 500 kW transformerless inverter
2010 IEEE Energy Conversion Congress and Exposition, 2010This paper presents the cost advantages that a high-performance, 500 kW, transformerless PV inverter can have for the megawatts solar farm system. Higher efficiency, smaller size, and lower installation costs impact balance-of -system (BoS) costs and reducing the levelized cost of energy (LCOE) compared with traditional, transformer-based PV inverters.
Jeng-Yue Chen +4 more
openaire +1 more source
A Transformerless Power Conversion Unit for Grid Connected Solar PV System
2022 IEEE 10th Power India International Conference (PIICON), 2022Tanay Mistry, Jitendra Gupta, Bhim Singh
openaire +1 more source