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Stationary-frame power regulation for controlling grid-connected three-phase modular multilevel converter with low harmonic under unbalanced voltage.

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Akbari E.
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Vibration profile comparison of grid connected and battery-grid connected transformers

2021 IEEE PES Innovative Smart Grid Technologies - Asia (ISGT Asia), 2021
This paper presents a comparison of vibro-acoustic data from two different three-phase transformers, a traditional grid connected transformer and one used to connect a 1.1 MW battery to the grid. The influence of harmonics on transformer vibration, is well documented and of serious concern. Typically, transformers within standard grid connected systems
Pallot, Jakob, Le, Vincent, Naranpanawe, Lakshitha   +2 more
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Optimal sizing of a grid-connected microgrid

2015 IEEE International Conference on Industrial Technology (ICIT), 2015
In this paper, we propose a novel method to determine the optimal sizing of a grid-connected Microgrid which includes Photovoltaic (PV) system, battery energy storage system (BESS). The problem is viewed as a constrained optimization. In particular, the objectives are to minimize the annual cost of the system (ACS) with zero unmet loads as well as to ...
Luu Ngoc An, Quoc Tuan Tran 0001, Seddik Bacha, Van-Linh Nguyen   +3 more
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Grid connection of renewable energy

2010 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT Europe), 2010
The paper will consider various techniques that have been used to help renewable generation connect to the grid. The first is the use of STATCOM technology for the supply of voltage and power factor control by supplying fast var's to meet the reactive requirements of the grid code and also to support installations which are connecting to a weak grid ...
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Grid-Connected Photovoltaic Generation System

IEEE Transactions on Circuits and Systems I: Regular Papers, 2008
This study addresses a grid-connected photovoltaic (PV) generation system. In order to make the PV generation system more flexible and expandable, the backstage power circuit is composed of a high step-up converter and a pulsewidth-modulation (PWM) inverter.
Rong-Jong Wai, Wen-Hung Wang
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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), 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
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Control for grid-connected and stand-alone operations of three-phase grid-connected inverter

2012 International Conference on Renewable Energy Research and Applications (ICRERA), 2012
This paper describes a simple grid current control method for the grid-connected operation, and inverter voltage control method based on the phase locked loop (PLL) for the intentional islanding operation at the three-phase grid-connected inverter. The PLL controller based on the pq theory with a simple P-controller is used to synchronize the phase of ...
null Thanh-Vu Tran, null Tae-Won Chun, null Hong-Hee Lee, null Heung-Geun Kim, null Eui-Cheol Nho   +4 more
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Grid connection conundrum

Renewable Energy Focus, 2011
AS THE UK's Round 3 projects gain momentum and move wind turbines further offshore, developers need to improve how they will connect their wind farms to the grid. So where will all the cable come from?
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Grid connected Photovoltaic system

2017 International Conference on Communication, Control, Computing and Electronics Engineering (ICCCCEE), 2017
Renewable energy resources such as Solar, wind and hydro are pollution free, easily erectable, and limitless so they represent reliable alternatives to conventional energy sources e.g. oil and natural gas. However, the efficiency and the performance of these systems are still under development.
Abdalla Y. Mohammed, Farog I. Mohammed, Mamoun Y. Ibrahim   +2 more
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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 ...
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