Results 261 to 270 of about 54,052 (304)

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

Photovoltaic Grid-Connected Inverter Harmonic Compensation and Grid-Connected Unified Control

2009 Asia-Pacific Power and Energy Engineering Conference, 2009
On the basis of the research on grid-connected technology of distributed generation system, in order to extend the full advantage of single-phase photovoltaic grid-connected energy and gain rapid electric energy conversion and high quality electric energy and achieve accurate control and reactive power and harmonic compensation, a control scheme of ...
openaire   +1 more source

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

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

Common-Ground Transformerless Grid-Connected Inverters

2020
Rule 1 for eliminating leakage current of full-bridge TLIs and Rule 2 for eliminating leakage current of half-bridge TLIs have been discussed in Chaps. 3 and 4, respectively. This chapter focuses on Rule 3 used in common-ground TLIs. Common-ground TLIs mean that the neutral line of the grid is directly connected to the negative terminal of the PV ...
Huafeng Xiao, Xiaobiao Wang
openaire   +1 more source

Two-stage grid-connected inverter for PV systems

2018 IEEE 12th International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG 2018), 2018
In 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.
Komurcugil, Hasan, SEFA, İBRAHİM, ALTIN, NECMİ, ÖZDEMİR, ŞABAN, Biricik, Samet   +4 more
openaire   +2 more sources

Grid Connected Photovoltaic Systems with Multilevel Inverter

2020 International Conference on Emerging Frontiers in Electrical and Electronic Technologies (ICEFEET), 2020
Sun is a source of light since the dawn of civilization and researches has proven its promising and bright future as an alternative option to the most important conventional source of energy such as coal, gas and petroleum, which are getting depleted at an escalated rate.
Ashutosh Kumar, R.K. Mandal, Ravi Raushan, Pratyush Gauri   +3 more
openaire   +1 more source

Grid Connected Photovoltaic System Using Inverter

2016
In this paper, a boost chopper using PV (Photovoltaics) system and PWM (Pulse Width Modulation) voltage type power converter were constructed to provide a pleasant environment to the patients in the hospital wards by controlling temperature, humidity and air-conditioning and heating.
HyunJong Kim, Moon-Taek Cho, Kab-Soo Kim
openaire   +1 more source

Transformer-Less Grid-Connected Photovoltaic Inverter

Educational Administration: Theory and Practice
The increasing use of inverters in microgrids and Photovoltaic generation systems has made it more crucial than ever to achieve low-distortion, high-quality power export from inverters. The presence of harmonics in the grid's pre-existing voltage/current distortion will result in poor power quality.
Repalle Rohit, Gudipati Kishor
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