نتایج جستجو برای: Current based MPPT

تعداد نتایج: 3484248  

2012
Ying Zhu Ming Cheng Wei Wang

This paper proposes a novel optimal current given (OCG) maximum power point tracking (MPPT) control strategy based on the theory of power feedback and hill climb searching (HCS) for a permanent magnet direct drive wind energy conversion system (WECS). The presented strategy not only has the advantages of not needing the wind speed and wind turbine characteristics of the traditional HCS method, ...

Journal: :مهندسی قدرت ایران 0
majid zandi electrotechnique de nancy (green) nancy université – inpl avenue de la forêt de haye, france a. payman electrotechnique de nancy (green) nancy université, france j-p. martin electrotechnique de nancy (green) nancy université, france s. pierfederici electrotechnique de nancy (green) nancy université, france b. davat electrotechnique de nancy (green) nancy université, france

consideration of the current-voltage (i-v) characteristics variations of solar modules with temperature and irradiations variations is basic for maximum power point tracking (mppt). having a simple and accurate mathematical model for the optimize utilization of the solar modules is essential. in this paper, a novel modeling of photovoltaic systems with novel coefficients is proposed for mathema...

Maximum Power Point (MPP) tracker has an important role in the performance of fuel cell (FC) systems improvement. Tow parameters which have effect on the Fuel cell output power are temperature and membrane water. So contents make the MPP change by with variations in each parameter. In this paper, a new maximum power point tracking (MPPT) method for Proton Exchange Membrane (PEM) fuel cell is pr...

2014
NAOUFEL KHALDI HASSAN MAHMOUDI MALIKA ZAZI YOUSSEF BARRADI

The maximum power point tracking (MPPT) system controls the voltage and the current output of the PV system to deliver maximum power to the load. Present work deals a comparative analysis of incremental conductance, and neural network based MPPT techniques. Parameters values were extracted using Newton Raphson method from characteristics of Shell SP75 module. The simulations have been carried o...

2015
F. M. Oliveira S. A. O. Silva F. R. Durand L. P. Sampaio

This paper deals with a study of a maximum power point tracking (MPPT) technique based on the Particle Swarm Optimization (PSO) method, which is applied to a single-phase grid-tied photovoltaic system. Since photovoltaic panels have nonlinear voltage-current characteristic curves, when they are submitted to partial shading conditions, it is possible appear distinct local and global maximum powe...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه 1377

the methods which are used to analyze microstrip antennas, are divited into three categories: empirical methods, semi-empirical methods and full-wave analysis. empirical and semi-empirical methods are generally based on some fundamental simplifying assumptions about quality of surface current distribution and substrate thickness. thses simplificatioms cause low accuracy in field evaluation. ful...

2017
Gopal Reddy

Nowadays solar energy has great importance. Because it is easily available resource for energy generation. But the only problem is efficiency of solar system. And to increase its efficiency many MPPT techniques are available for use. Incremental conductance (INC) method is one of those well known MPPT techniques. Development of INC method using two-step model predictive control by employing art...

2015
D. D. Gaikwad M. S. Chavan W. Xiao J. Lind W. Dunford

Photovoltaic (PV) cell converts sunrays into electrical energy, which has non-linear I-V characteristics. For extracting maximum power from photovoltaic (PV) array for varying environmental conditions, it is necessary to use MPPT tracker. The MPPT consists of DC-DC converter and MPPT algorithm, DC-DC converter is inserted between solar panel and load or battery. The task of MPPT tracker is to m...

Journal: :International Journal of Photoenergy 2015

2013
Jay Patel Gaurang Sharma

This paper presents the design and simulation of a photovoltaic system using incremental conduction maximum power point tracking (MPPT) algorithm with boost converter . The current-voltage (I-V) & power-voltage (P-V) characteristics are obtained for solar module . The MPPT algorithm, which is based on the incremental conduction method, is also described

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