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Fault contribution of grid-connected inverters
2009 IEEE Electrical Power & Energy Conference (EPEC), 2009The distribution grid is mainly built on a radial configuration where power is coming from one transformer substation to supply clients. Up to recently, in the rare cases where distributed generation existed, it was almost exclusively constituted of rotating machines, which have quite a different behaviour under fault than inverter-based sources ...
Dave Turcotte, Farid Katiraei
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Enhanced utilization of grid-connected inverter
2015 IEEE 6th International Symposium on Power Electronics for Distributed Generation Systems (PEDG), 2015Smooth mode transfer of voltage source inverter (VSI) between grid-connected and stand-alone modes is achieved by operating the inverter in voltage control mode (VCM). However, this operation produces some adverse practical issues such as requirement of large rating VSI, limited real power injection by VSI, negligible operational capability in strong ...
Chandan Kumar +2 more
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Design of a Seamless Grid-Connected Inverter for Microgrid Applications
IEEE Transactions on Smart Grid, 2020The objective of this paper is to propose a seamless grid-connected inverter (SGI) for microgrid applications. The proposed SGI is able to operate in the grid-connected mode or the standalone mode. In order to smooth the transfer transition from the grid-connected mode to the standalone mode and to isolate the microgrid from the grid fault immediately ...
Kuo-Yuan Lo, Yaow-Ming Chen
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Novel grid-connected photovoltaic inverter
IEE Proceedings - Generation, Transmission and Distribution, 1996Detailed analysis and simulation results of a novel solar photovoltaic inverter configuration interconnected to the grid are presented. From the simulation results it is confirmed that the harmonic distortion of the output current waveform of the inverter fed to the grid is within the stipulated limits laid down by the utility companies.
SAHA, S, SUNDARSINGH, VP
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A grid connected current source inverter.
2009 International Conference on Clean Electrical Power, 2009In Co-generation systems are required converters able to inject current with low harmonic content, traditionally the inverters are considered. In this paper is proposed to use the current source inverter instead of voltage source inverter, this type of inverters can accept a low input voltage to inject current to the ac mains. The operation, simulation
N. Vazquez +5 more
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Dynamics of grid connected PV inverters
2010 IEEE International Energy Conference, 2010Power failure of electric network identifies the hazardous aspects of inverter grid interfacing to linesmen maintaining power lines. Dynamics of grid-connected first order system indicates the necessity for an optimum tripping mechanism for an inverter feeding diversity of locally connected loads are analysed.
Khalid Hasan Masoud, Gerard Ledwich
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Droop PLL for grid-connected inverter
Proceedings of The 7th International Power Electronics and Motion Control Conference, 2012Using grid voltage feed-forward control, the current-loop parameters and filter inductor affect the power factor of grid-connected inverter. Based on droop phase-locked loop (PLL) a novel control strategy is proposed. The phase difference between the grid current and grid voltage is detected and is used to calculate the output frequency of PLL.
null Jia-rong Kan +4 more
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A single-phase grid-connected PV inverter with improved grid-connected current
The 27th Chinese Control and Decision Conference (2015 CCDC), 2015This paper presents an effective method, which can address the existing dc-link double-line-frequency voltage ripples in single-phase grid-connected PV inverters, to improve the grid-connected current. The instantaneous power pulsations at grid side cause double-line-frequency fluctuations of the dc-link voltage in single-phase grid-connected PV ...
Furong Xiao, Lei Dong, Xiaozhong Liao
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Two-stage grid-connected inverter for PV systems
2018 IEEE 12th International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG 2018), 2018In this study, a two-stage grid-connected inverter is proposed for photovoltaic (PV) systems. The proposed system consist of a single-ended primary-inductor converter (SEPIC) converter which tracks the maximum power point of the PV system and a three-phase voltage source inverter (VSI) with LCL filter to export the PV supplied energy to the grid.
Altin, Necmi +4 more
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The Application of SiC Devices in Photovoltaic Grid-connected Inverters
Proceedings of the 2nd International Conference on Artificial Intelligence and Advanced Manufacture, 2020The continuous development of photovoltaic grid-connected technology extended the requirement on higher power density and higher efficiency for power converters. In this respect, the application of silicon carbide (SiC) high-power power electronic devices in photovoltaic inverter systems can simplify the system design, simplify the heat dissipation ...
Yongping Li +8 more
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