Results 221 to 230 of about 232,394 (259)

Experimental implementation of an electronic load for global maximum power point tracking

2016 IEEE 2nd Annual Southern Power Electronics Conference (SPEC), 2016
This work deals with the partial shading effect in the power curve of a PV solar array. Using a semiconductor device — MOSFET or IGBT — as electronic load added to a buck converter, it is possible to scan the power curve of a photovoltaic string and therefore empirically determine its optimum voltage, even in presence of partial shading.
Rodrigo Aliaga, Javier Munoz, Fausto Cadena, Pablo Cossuta, Miguel Aguirre, Luis Moran   +5 more
openaire   +1 more source

Conventional and global maximum power point tracking techniques in photovoltaic applications: A review

Journal of Renewable and Sustainable Energy, 2013
Maximum Power Point Tracking (MPPT) is a technique employed to extract maximum power available from a photovoltaic (PV) module under varying atmospheric conditions. It traces the PV operating voltage corresponding to the maximum power point (MPP) and operates the panel at MPP. However, if a PV array is partially shaded, the conventional MPPT techniques
A. Pallavee Bhatnagar, B. R. K. Nema
openaire   +1 more source

A Time-Based Global Maximum Power Point Tracking Technique for PV System

IEEE Transactions on Power Electronics, 2020
This paper presents a new global maximum power point tracking (GMPPT) technique for the photovoltaic (PV) array under uniform as well as non-uniform solar irradiance. The proposed method uses the I–V characteristic of the PV array to track the global peak.
Mohd Aquib, Sachin Jain, Vivek Agarwal
openaire   +1 more source

An Analog Global Maximum Power Point Tracking for photovoltaic systems: Application to nanospacecrafts

2017 19th European Conference on Power Electronics and Applications (EPE'17 ECCE Europe), 2017
In this work, an Analog Global Maximum Power Point Tracker (A-GMPPT) is introduced and discussed. The underlying idea of this A-GMPPT is the peak power tracking using a capacitive load, in particular the filter input capacitance of the DC/DC converter.
A. Garrigos, D. Marroqui, J. M. Blanes, R. Gutierrez, M. Compadre, C. Clark   +5 more
openaire   +1 more source

A global maximum power point tracking method for PV module integrated converters

2012 IEEE Energy Conversion Congress and Exposition (ECCE), 2012
This paper proposes a maximum power point tracking (MPPT) method to seek the global maximum power point (MPP) in photovoltaic (PV) modules. The method infers partial shading—and hence the possibility of multiple maxima—by monitoring bypass-diode voltages and initiates a global search routine only if a bypass diode turns on.
Sairaj V. Dhople, Roy Bell, Jonathan Ehlmann, Ali Davoudi, Patrick L. Chapman, Alejandro D. Dominguez-Garcia   +5 more
openaire   +1 more source

Experimental Validation of a Photovoltaic Scan Circuit for Global Maximum Power Point Tracking

2018 IEEE ANDESCON, 2018
This paper presents the partial shading effect on a solar photovoltaic system and proposes a circuit for scanning the power-voltage curve. In the first part of this document the partial shading effect is presented, then an experimental set-up is shown where a simple Perturb & Observe algorithm is trapped in a local point of maximum power. The next part
Javier Munoz, Rodrigo Aliaga, Patricio Gaisse, Hector Guerrero, Raul Gregor, Jorge Rodas   +5 more
openaire   +1 more source

A Novel Global Maximum Power Point Tracking Technique based on Shading Detection for Photovoltaic Strings

2020 International SoC Design Conference (ISOCC), 2020
Multiple peaks in power-voltage (P-V) characteristics of photovoltaic (PV) strings under partial shading conditions (PSC) bring challenges to maximum power point tracking (MPPT) techniques for reaching the global maximum power point (GMPP). Early studies have revealed that the locus of the GMPP can be predicted from the shading information, which is ...
Ziqiang Bi, Jieming Ma, Ka Lok Man, Yong Yue 0001, Jeremy S. Smith   +4 more
openaire   +1 more source

On-line global maximum power point (GMPP) identification of solar PV plants

2018 IEEE Applied Power Electronics Conference and Exposition (APEC), 2018
This paper introduces an algorithm to identify the global maximum power point (GMPP) of a solar Photovoltaic (PV) plant while operating under the partial shade condition (PSC) or fault condition (FC). Conventionally a complete current vs. voltage (or I-V) curve of the faulty PV array is swept to identify the GMPP.
Matam Manjunath, B. Venugopal Reddy, Ye Zhao, Brad Lehman   +3 more
openaire   +1 more source

Global maximum power point tracking method under partial shading conditions

2015 IEEE Advanced Information Technology, Electronic and Automation Control Conference (IAEAC), 2015
The power characteristics of photovoltaic systems can have multiple peaks when under partially shading conditions which can cause traditional power tracking methods to operate at the lower power peaks. This paper presents a global maximum power point tracking method under partially shading conditions.
Mingxuan He, Jiyong Li
openaire   +1 more source

Global Maximum Power Point Tracking Method for Photovoltaic Arrays Under Partial Shading Conditions

IEEE Transactions on Industrial Electronics, 2017
The power–voltage characteristic of photovoltaic (PV) arrays displays multiple local maximum power points when all the modules do not receive uniform solar irradiance, i.e., under partial shading conditions (PSCs). Conventional maximum power point tracking (MPPT) methods are shown to be effective under uniform solar irradiance conditions. However, they
Alireza Ramyar, Hossein Iman-Eini, Shahrokh Farhangi   +2 more
openaire   +1 more source