Analysis Of Mppt Techniques Applied To The Dcm Multiphase Boost Converter For The Mitigation Of Partial Shading In Pv Arrays

Jr., Pedro de Assis Sobreira; Tofoli, Fernando Lessa; Braga, Henrique A. C.; Barbosa, Pedro G.; Ferreira, André Augusto

doi:10.18618/rep.2013.4.11381148

Cited by 4 publications

(1 citation statement)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It can be used for high voltage, high current, and high power applications in different industrial purposes. In addition, IBC has many attractive features such as: (i) minimal input current ripples; (ii) boosting the output voltage to higher levels; (iii) reducing the thermal stresses on the devices; (iv) lower current stress on the power switches and inductance hence; reducing the passive components size; (v) higher output power and efficiency; and (vi) higher power density [34][35][36][37][38][39].…”

Section: Introductionmentioning

confidence: 99%

Maximum Power Extraction from a Partially Shaded PV System Using an Interleaved Boost Converter

et al. 2018

View full text Add to dashboard Cite

The partially shaded photovoltaic (PSPV) condition reduces the generated power and contributes to hot spot problems that may lead to breakdown of shaded modules. PSPV generates multiple peak, one global one and many other local peaks. Many efficient, accurate and reliable maximum power point tracker (MPPT) techniques are used to track the global peak instead of local peaks. The proposed technique is not limited to global peak tracking, but rather it is capable of tracking the sum of all peaks of the PV arrays using an interleaved boost converter (IBC). The proposed converter has been compared with the state of the art conventional control method that uses a conventional boost converter (CBC). The converters used in the two PSPV systems are interfaced with electric utility using a three-phase inverter. The simulation findings prove superiority of the PSPV with IBC compared to the one using CBC in terms of power quality, reliability, mismatch power loss, DC-link voltage stability, efficiency and flexibility. Also, IBC alleviates partial shading effects and extracts higher power compared to the one using CBC. The results have shown a remarkable increase in output generated power of a PSPV system for the three presented scenarios of partial shading by 61.6%, 30.3% and 13%, respectively, when CBC is replaced by IBC.

show abstract

Section: Introductionmentioning

confidence: 99%

Maximum Power Extraction from a Partially Shaded PV System Using an Interleaved Boost Converter

et al. 2018

View full text Add to dashboard Cite

show abstract

Cascaded Cell String Current Diverter For Improvement Of Photovoltaic Solar Array Under Partial Shading Problems

Santos¹,

Donoso-Garcia²,

Seleme³

et al. 2015

Eletrônica de Potência

View full text Add to dashboard Cite

-Partial shading has shown to be a common efficiency issue for photovoltaic arrays installations, whether for islanded or grid-tied systems. Current diverter appears as reasonable solution, but with the increasing of string order, the currents deviated difficult the sizing of inductors. Also, in this type of converter, a multilevel synchronized gate-driver is needed. In this work, an independently cell string current diverter is proposed. This configuration is based in the NonDissipative String Current Diverter, however, its inductors current achieve low values during partial shading, and does not need synchronism of its gatedrivers. Also, this configuration facilitates one local Maximum Power Point Tracking for each module, and enables the enhancement of efficiency with simple implementation. The simulation and experimental results are presented to give support to the theoretical development.1

show abstract

Coupled-inductor High Step-up Integrated Topologies: Synthesis, Analysis and Experimental Results

Andrade¹,

Dreher²,

Schuch³

et al. 2016

Eletrônica de Potência

View full text Add to dashboard Cite

This paper presents a new integration concept to generate high voltage step-up non-isolated DC/DC converters with the aid of coupled-inductors. The integration concept relies on the separation of the converter circuit into two or three parts named input, middle and output sections. Hence, any basic converter can partially or fully share one of its sections with another basic converter since both circuits comply with the integration rules. The merged converters become an integrated topology with fewer components. According to this paper, for the input section parallel integration, the circuits remaining output sections can be associated in three different ways, in a series, parallel or cascaded connection. These output sections associations allow for a merged topology to enhance their voltage gain that becomes the sum of the voltage gains of the former topologies alone. An example of integration of the boost and flyback converter is provided to illustrate the theory. The resulting integrated topologies are theoretically and experimentally evaluated. The results prove that the integration methodology is an effective way to obtain high voltage conversion ratio circuits and that the derived topologies are highly efficient due to their low converter series resistances.

show abstract

Analysis Of Mppt Techniques Applied To The Dcm Multiphase Boost Converter For The Mitigation Of Partial Shading In Pv Arrays

Cited by 4 publications

References 33 publications

Maximum Power Extraction from a Partially Shaded PV System Using an Interleaved Boost Converter

Maximum Power Extraction from a Partially Shaded PV System Using an Interleaved Boost Converter

Cascaded Cell String Current Diverter For Improvement Of Photovoltaic Solar Array Under Partial Shading Problems

Coupled-inductor High Step-up Integrated Topologies: Synthesis, Analysis and Experimental Results

Contact Info

Product

Resources

About