Results 251 to 260 of about 1,827,778 (298)

Grid connected Photovoltaic System Based on SPUC5 Inverter

2021 22nd IEEE International Conference on Industrial Technology (ICIT), 2021
In this paper, a new single-phase grid-connected photovoltaic (PV) system, based on the five-level S-Packed U-Cell (SPUC5) inverter, is presented. This novel topology requires a minimum number of components while providing a maximum number of voltage levels. The Pulse Width Modulation (PWM) controller is applied to the five-level SPUC inverter in order
Hind El Ouardi, Mohammed El Kasmi Alaoui, Mariam Nabaoui, Mohammed Habib, Ayoub El Gadari, Youssef Ounejjar, Kamal Al-Haddad   +6 more
openaire   +2 more sources

Fault contribution of grid-connected inverters

2009 IEEE Electrical Power & Energy Conference (EPEC), 2009
The 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
openaire   +1 more source

Enhanced utilization of grid-connected inverter

2015 IEEE 6th International Symposium on Power Electronics for Distributed Generation Systems (PEDG), 2015
Smooth 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, Mahesh K. Mishra, M. V. Manoj Kumar   +2 more
openaire   +1 more source

Design of a Seamless Grid-Connected Inverter for Microgrid Applications

IEEE Transactions on Smart Grid, 2020
The 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
openaire   +2 more sources

Novel grid-connected photovoltaic inverter

IEE Proceedings - Generation, Transmission and Distribution, 1996
Detailed 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
openaire   +2 more sources

A grid connected current source inverter.

2009 International Conference on Clean Electrical Power, 2009
In 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, H. Lopez, C. Hernandez, E. Rodriguez, R. Orosco, J. Arau   +5 more
openaire   +1 more source

Dynamics of grid connected PV inverters

2010 IEEE International Energy Conference, 2010
Power 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
openaire   +1 more source

Droop PLL for grid-connected inverter

Proceedings of The 7th International Power Electronics and Motion Control Conference, 2012
Using 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, null Ning Li, null Zhi-lei Yao, null Ying-cheng Xue, null Dong-chun Wu   +4 more
openaire   +1 more source

A single-phase grid-connected PV inverter with improved grid-connected current

The 27th Chinese Control and Decision Conference (2015 CCDC), 2015
This 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
openaire   +1 more source

Robust Power Flow Control of Grid-Connected Inverters

IEEE Transactions on Industrial Electronics, 2016
In this paper, an uncertainty and disturbance estimator (UDE)-based robust power flow control is developed for grid-connected inverters to achieve accurate power delivery to the grid. The model of power delivering with both frequency dynamics and voltage dynamics is derived at first.
Yeqin Wang, Beibei Ren, Qing-Chang Zhong
openaire   +2 more sources