Reconfiguration of PV modules: A tool to get the best compromise between maximization of the extracted power and minimization of localized heating phenomena

Balato, Marco; Costanzo, Luigi; Vitelli, M.

doi:10.1016/j.solener.2016.09.011

Cited by 53 publications

(33 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The present paper comprises literature review of the most appropriate research papers, which are studied for obtaining the research gap. The various types of PV array configurations are reviewed in their performance, reliability, accuracy, robustness, efficiency, and execution of each configuration …”

Section: Introductionmentioning

confidence: 99%

“…New configurations such as SP‐TCT and Su‐Do‐Ku configurations are considered for the investigation under shading conditions. The SP, TCT, BL, HC, optimal TCT, and novel TCT PV array configurations are considered for performance investigation under PSCs, in which recently proposed novel TCT configuration has shown better response in maximum power at GMPP, minimum power loss, improved FF, and higher performance ratio …”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Shade dispersion-based photovoltaic array configurations for performance enhancement under partial shading conditions

Pachauri

Yadav

Chauhan³

et al. 2018

Int Trans Electr Energ Syst

View full text Add to dashboard Cite

Summary Recently, the partial shading conditions (PSCs) and its impact on the performance of photovoltaic (PV) systems have motivated to explore novel approach to minimize the PSC adverse effect. In this context, the existing PV arrays are reconfigured to overcome the effects of PSCs. This paper presents a comprehensive and comparative study of existed total cross‐tied (TCT) configuration with a novel Latin square puzzle‐based TCT configuration called Latin square‐TCT (LS‐TCT) to minimize the shading effects. An investigation is carried out based on the considered partial shading patterns (progressive bottom to top, left to right, diagonal, multistory building, and zigzag shading cases) in global maximum power point (GMPP), power loss, and fill factor. The performance of LS‐TCT configuration is compared with benchmark TCT configuration. It is noticed that the proposed LS‐TCT configuration has maximum power of 2279 W as compared with 1976 W for TCT configuration at global maximum power point for a shading case. Further, it is also shown that the minimum power losses in proposed LS‐TCT configuration are reduced to 330 W as compared with 633 W for TCT configuration. Moreover, the fill factor in the proposed LS‐TCT configuration is 9.91 as compared with 8.59 for TCT configuration under the considered PSCs. Overall, the performance of LS‐TCT configuration is found to be superior as compared with TCT configuration.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Shade dispersion-based photovoltaic array configurations for performance enhancement under partial shading conditions

Pachauri

Yadav

Chauhan³

et al. 2018

Int Trans Electr Energ Syst

View full text Add to dashboard Cite

show abstract

“…In fact, reliability represents a crucial aspect to take into account in PV applications. In [31], the following innovative concept has been introduced as concern reliability: the objective of the maximization of the energy production of a PV array during its lifetime may be in contrast with the objective of the maximization of the power production in any operating condition. That is, it may be in contrast with maximum power point tracking (MPPT) objectives, if reliability is given due consideration.…”

Section: Introductionmentioning

confidence: 99%

On the Link between the Operating Point and the Temperature Distribution in PV Arrays Working under Mismatching Conditions

Costanzo

Vitelli

2018

International Journal of Photoenergy

Self Cite

View full text Add to dashboard Cite

Mismatching operating conditions negatively affect the extracted energy in photovoltaic (PV) systems. They may also lead to dangerous localized heating phenomena (hot spots) that can cause, in turn, accelerated ageing and reduced reliability. Since the adoption of bypass diodes or smart active switches does not prevent the occurrence of hotspots, it is necessary to investigate alternative strategies. A promising solution is represented by the proper regulation of the operating point of the PV cells in the current vs. voltage (I-V) or power vs. voltage (P-V) planes when mismatching conditions occur. In particular, in this paper, the existence of operating points allowing a suitable compromise between maximization of the extracted power and minimization of thermal stresses, due to hot spots, is experimentally evidenced. Experimental results highlighting the link existing between the operating point in the I-V plane and the PV cell temperature distribution under uniform and mismatching operating conditions are presented and discussed. On the basis of the obtained experimental results, it is possible to state that, when mismatching conditions occur, it is mandatory to properly choose the operating point: the global maximum power point may not be the best operating point. Hence, it is crucial to gain information about the eventual occurrence of mismatching conditions in order to be able to properly choose the best operating point. Therefore, another crucial aspect that is evidenced in this paper is represented by the fact that the detection of the occurrence of mismatching conditions, based on the analysis of the shape of the I-V and/or P-V characteristics, is effective only if the analysis is carried out for both positive and negative voltages.

show abstract

“…Based on I-V curve data, some researchers proposed reconfiguration algorithms for PV arrays to maximize global power output [11]. Moreover, PV reconfiguration can be used to balance the overall power output and the aging of PV modules [12,13]. However, such methods cannot deal with cases where different types of faults occur simultaneously.…”

Section: Introductionmentioning

confidence: 99%

Photovoltaic Array Fault Detection by Automatic Reconfiguration

Dong

Cai

et al. 2017

Energies

View full text Add to dashboard Cite

Photovoltaic (PV) system output electricity is related to PV cells' conditions, with the PV faults decreasing the efficiency of the PV system and even causing a possible source of fire. In industrial production, PV fault detection is typically laborious manual work. In this paper, we present a method that can automatically detect PV faults. Based on the observation that different faults will have different impacts on a PV system, we propose a method that systematically and iteratively reconfigures the PV array until the faults are located based on the specific current-voltage (I-V) curve of the (sub-)array. Our method can detect several main types of faults including open-circuit faults, mismatch faults, short circuit faults, etc. We evaluate our methods by Matlab/Simulink-based simulation. The results show that the proposed methods can accurately detect and classify the different faults occurring in a PV system.

show abstract

Reconfiguration of PV modules: A tool to get the best compromise between maximization of the extracted power and minimization of localized heating phenomena

Cited by 53 publications

References 39 publications

Shade dispersion-based photovoltaic array configurations for performance enhancement under partial shading conditions

Shade dispersion-based photovoltaic array configurations for performance enhancement under partial shading conditions

On the Link between the Operating Point and the Temperature Distribution in PV Arrays Working under Mismatching Conditions

Photovoltaic Array Fault Detection by Automatic Reconfiguration

Contact Info

Product

Resources

About