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Description: At this moment, the major
obstacle of wide PV system commercialization is the
high initial investment cost that stems from the strict
grid connection standards and high expectations from
the PV system [2], [3]. The grid-connected PV system
consists of two parts: PV arrays that convert irradiation
to electrical energy, and the converter that feeds the
energy into the grid.
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Size: 1024 |
Author: mimo |
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Description: To keep overall output power per
unit cost low, the grid-connected converters should be
able to extract the maximum available power from the
PV arrays. Since the PV array characteristic is highly
nonlinear, maximum power point tracking (MPPT) of
the PV arrays becomes rather challenging.
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Size: 10240 |
Author: mimo |
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Description: 带有MPPT功能的光伏阵列Matlab通用仿真模型.kdh-MPPT in PV arrays with Matlab Simulation Model. Kdh
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Size: 846848 |
Author: 陈玮 |
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Description: a complete PV model
Solar photovoltaic array according to the characteristics of photovoltaic arrays
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Size: 1637376 |
Author: Abbes |
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Description: This Question and Answer Guide for Solar Electric Systems addresses general considerations about photovoltaics
(PV) technology and requirements for installing photovoltaic power systems, including building-integrated
applications. Contained in this guide are commonly asked questions about the technology, and responses based on
current state-of-the-art equipment and industry design practice.
This document covers fundamentals of photovoltaic cells, modules and arrays, as well as identification of common
system configurations, operational strategies and major components.
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Size: 147456 |
Author: ahmed |
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Description: Maximum power point tracking (MPPT) must usually be integrated with photovoltaic (PV) power
systems so that the photovoltaic arrays are able to deliver the maximum power available.
The present paper proposes a maximum power point tracker (MPPT) method, based on fuzzy logic
controller (FLC), applied to a stand-alone photovoltaic system under variable temperature and irradiance conditions. The objective of this controller is to extract the maximum power of photovoltaic modules.
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Size: 1214464 |
Author: Ninouh |
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Description: 为研究局部阴影效应对光伏发电系统的影响，首先建立了光伏阵列工程数学模型，分析局部阴影条件下光伏阵列的输出特性。为了便于工程分析，该文利用PVSYST软件分析比较单晶硅、多晶硅和薄膜电池等3种不同材料光伏电池在局部阴影条件卜的输出功率，为工程应用提供了良好的指导作用。最后提出了几种提高光伏阵列抗局部阴影能力的措施厂
-To investigate the effect of local shading effects on photovoltaic systems, photovoltaic array project was first established mathematical model to analyze the output characteristics under conditions of partial shading of the PV array. In order to facilitate engineering analysis, this paper use PVSYST software analysis and comparison monocrystalline, polycrystalline and thin film batteries, photovoltaic cells of three different materials in partial shade conditions Bu output power for engineering applications provide a good guide. Finally, several photovoltaic arrays to improve the ability to measure resistance to partial shade plant
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Size: 250880 |
Author: dingxiaolin |
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Description: 太阳能光伏阵列在光照强度不均匀或者处于部分遮阴情形时，它的功率一电压输出特性曲线将出现多峰现象，这种情况下如果继续采用传统的最大功率跟踪法会造成光伏阵列输出功率的降低，从而导致光伏发电系统的效率的降低。
本文首先介绍了光伏并网发电的研究背景和意义，分析了国内外的现状和光伏并网发电关键问题的现状，接着对光伏电池的工作原理、等效模型和输出特性三方面进行了作了全面的分析 在此基础上，深入研究了热斑效应和部分遮阴条件下光伏电池不同的表现性能 然后，本文详细介绍了常用的最大功率跟踪方法的原理、优缺点和适用的场合及存在的一些问题，同时提出了一种适用于部分遮阴条件下的基于电导增量法的全局搜索算法。基于以上研究，本文又设计了实现最大功率跟踪控制的硬件电路，其中包括Boost电路和DSP的外围控制电路。
- It is widespread that there is uneven light intensity, partial shading and other phenomena in various photovoltaic (PV) power generation systems, this phenomenon will not only affect the power output of the PV arrays, but also will cause problems with the safety and stability. The P-U characteristics of PV array will appear multi-peaks in the partial shade condition, making the conventional maximum power point tracking(MPPT) algorithm fail to apply in this case.
Firstly, the paper introduces the grid-connected PV system research background and significance, the current situation at home and abroad, key issues of grid-connected PVsystem, it also analyzes the electrical characteristics and equivalent model of PV cell, it also analyses the hot spot effect and the difference performance of PV cell in partial shading then, the paper introduces the principle of the conventional maximum power point tracking methods, its advantages and disadvantages, applicable occasions and problems
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Size: 11656192 |
Author: dingxiaolin |
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Description: Photovoltaic (PV) cells, normally assembled into modules or
arrays on mounting systems, are capable of producing electrons when photons strike its surface. Taking the advantages
of many promising features like renewability, less pollution,
and ease of installation, PV generators are envisaged to be an
important energy source for the future.
Due to the high initial cost of a
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Size: 2082816 |
Author: han |
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Description: Photovoltaic (PV) cells, normally assembled into modules or
arrays on mounting systems, are capable of producing electrons when photons strike its surface. Taking the advantages
of many promising features like renewability, less pollution,
and ease of installation, PV generators are envisaged to be an
important energy source for the future.
Due to the high initial cost of a
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Size: 321536 |
Author: han |
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Description: 本文描述的动态行为 并行输入/并行输出直流电流型控制 buck-boost转换器作为multiinput /初步研究 多输出。这个系统的主要应用之一 是集成光伏阵列是什么时候 连接到网格作为可再生能源的来源。的twomodule 变换器由两个相同的buck-boost电路 和直流运行传导模式 (CCM)。-the paper describes the dynamic behaviour of a
parallel-input/parallel-output current-mode controlled DC-DC
buck-boost converter as an initial research for multiinput/
multi-output. One of the main application for this system
is the integration with photovoltaic (PV) arrays when be
connected to the grid as a renewable energy source. The twomodule
converter comprises two identical buck-boost circuits
and operates in the continuous-current conduction mode
(CCM).
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Size: 338944 |
Author: 闵国旗 |
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Description: We present a methodology for the analysis and the uation of the electrical effects of partial shadings on
a PV array. This methodology is namely developed in a pedagogic tool of the software PVsyst, which aims to explain
how a shaded cell or group of cells behaves within a PV array. We use this tool for understanding the functions of the bypass
diodes, and quantify the array electrical losses in some typical situations, when one or several cells are shaded. We
show that the electrical shading effect is dependent either on the length of the strings, and on the number of strings in
parallel. This method should be applied for accurate shading calculations within the simulation process of PVsyst in a
near future.
Keywords : Shading – Modelling - Simulation-We present a methodology for the analysis and the uation of the electrical effects of partial shadings on
a PV array. This methodology is namely developed in a pedagogic tool of the software PVsyst, which aims to explain
how a shaded cell or group of cells behaves within a PV array. We use this tool for understanding the functions of the bypass
diodes, and quantify the array electrical losses in some typical situations, when one or several cells are shaded. We
show that the electrical shading effect is dependent either on the length of the strings, and on the number of strings in
parallel. This method should be applied for accurate shading calculations within the simulation process of PVsyst in a
near future.
Keywords : Shading – Modelling - Simulation
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Size: 150528 |
Author: rabah pv |
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Description: 用于固定光伏阵列的最大功率跟踪，为了获得光伏板的最大能量-Maximum power tracking photovoltaic array for fixing, in order to obtain maximum energy photovoltaic panels
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Size: 1083392 |
Author: ying |
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Description: Photovoltaic solar power technology is being pushed to the forefront as a viable alternative source of renewable energy. Addressing the key design challenges involved in the development and implementation of these systems requires simulation tools capable of not only modeling and analyzing the behavior of diverse electronic components, but also the ability to combine them with the associated control algorithms and uate the full system performance.
In this webinar, MathWorks engineers demonstrate how to use dynamic models to test and validate the performance of photovoltaic systems that include the PV arrays, the power converters and inverter electronics, and a variety of loading conditions, including a connection to the utility grid. The examples show how simulation can be used to perform design trade-offs and to develop and test control algorithms, including maximum power point tracking (MPPT).-Photovoltaic solar power technology is being pushed to the forefront as a viable alternative source of renewable energy. Addressing the key design challenges involved in the development and implementation of these systems requires simulation tools capable of not only modeling and analyzing the behavior of diverse electronic components, but also the ability to combine them with the associated control algorithms and uate the full system performance.
In this webinar, MathWorks engineers demonstrate how to use dynamic models to test and validate the performance of photovoltaic systems that include the PV arrays, the power converters and inverter electronics, and a variety of loading conditions, including a connection to the utility grid. The examples show how simulation can be used to perform design trade-offs and to develop and test control algorithms, including maximum power point tracking (MPPT).
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Size: 15360 |
Author: aldinei |
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Description: A complete Matlab Simulink model of a stand-alone PV system including PV arrays, battery, load and ON/OFF switch control and charge controller
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Size: 19456 |
Author: Eng Mary |
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Description: The many different techniques for maximum power
point tracking of photovoltaic (PV) arrays are discussed. The techniques
are taken the literature dating back to the earliest
methods. It is shown that at least 19 distinct methods have been
introduced in the literature, with many variations on implementation.
This paper should serve as a convenient reference for future
work in PV power generation.-The many different techniques for maximum power
point tracking of photovoltaic (PV) arrays are discussed. The techniques
are taken the literature dating back to the earliest
methods. It is shown that at least 19 distinct methods have been
introduced in the literature, with many variations on implementation.
This paper should serve as a convenient reference for future
work in PV power generation.
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Size: 210944 |
Author: Roshan |
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Description: IEC 62548-2016 pv阵列设计要求最新2016版本标准(IEC 62548 2016 Photovoltaic arrays Design requirements)
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Size: 2689024 |
Author: common3256
|
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Description: 400千瓦并网光伏电厂，包括四组光伏阵列，每组最大功率100Kw(400-kW Grid-Connected PV Farm The PV farm consists of four PV arrays delivering each a maximum of 100 kW at 1000 W/m2 sun irradiance. A single PV array block consist of 64 parallel strings where each string has 5 SunPower SPR-315E modules connected in series.)
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Size: 33792 |
Author: hlz
|
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Description: A New Technique for Tracking the Global Maximum
Power Point of PV Arrays Operating Under
Partial-Shading Conditions
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Size: 723968 |
Author: ahmed87
|
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