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Optimal sizing of a grid-connected microgrid
2015 IEEE International Conference on Industrial Technology (ICIT), 2015In 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 +3 more
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Grid connection of renewable energy
2010 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT Europe), 2010The 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, 2008This 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), 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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Control for grid-connected and stand-alone operations of three-phase grid-connected inverter
2012 International Conference on Renewable Energy Research and Applications (ICRERA), 2012This 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 +4 more
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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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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
2020As energy needs increase and fossil resources decrease, the development of grid-connected photovoltaic energy is becoming an important part of the energy mix in the majority of countries. In this article, our attention has been concentrated on a strategy to control and interface photovoltaic power injection systems to the grid without batteries in ...
Nasreddine Attou +3 more
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Photovoltaic Grid-Connected Inverter Harmonic Compensation and Grid-Connected Unified Control
2009 Asia-Pacific Power and Energy Engineering Conference, 2009On 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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Grid connected Photovoltaic system
2017 International Conference on Communication, Control, Computing and Electronics Engineering (ICCCCEE), 2017Renewable 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 +2 more
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Power devices for grid connections
2012 24th International Symposium on Power Semiconductor Devices and ICs, 2012Power electronic interfaces are vital to advanced, smarter, distributed grids and micro-grids and the capabilities and limitations of power devices are integral to this. This paper discusses existing and emerging applications of grid connected electronic interfaces that are enabled by Power Semiconductor Devices.
Leo F. Casey +4 more
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