Firefly Algorithm Applied to the Estimation of the Parameters of a Photovoltaic Panel Model

The location-routing problem is a research area that simultaneously solves location-allocation and vehicle routing issues. It is critical to delivering emergency goods to customers with high reliability. In this paper, reliability in location and routing problems was considered as the probability of failure in depots, vehicles, and routs. The problem has two objectives, minimizing the cost and maximizing the reliability, the latter expressed by minimizing the expected cost of failure. First, a mathematical model of the problem was presented and due to its NP-hard nature, it was solved by a meta-heuristic approach using a NSGA-II algorithm and a discrete multi-objective firefly algorithm. The efficiency of these algorithms was studied through a complete set of examples and it was found that the multi-objective discrete firefly algorithm has a better Diversification Metric (DM) index; the Mean Ideal Distance (MID) and Spacing Metric (SM) indexes are only suitable for small to medium problems, losing their effectiveness for big problems.

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Optimal Design Power System Stabilizer Using Firefly Algorithm in Interconnected 150 kV Sulselrabar System, Indonesia

International Review of Electrical Engineering (IREE) ◽

10.15866/iree.v12i3.11136 ◽

2017 ◽

Vol 12 (3) ◽

pp. 250 ◽

Cited By ~ 3

Author(s):

Muhammad Yusuf Yunus ◽

Muhammad Ruswandi Djalal ◽

Marhatang Marhatang

Keyword(s):

Optimal Design ◽

Power System ◽

Firefly Algorithm ◽

Power System Stabilizer ◽

System Stabilizer ◽

Design Power

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A SVD and Modified Firefly Optimization Based Robust Digital Image Watermarking Technique

International Journal of Advanced Research in Computer Science and Software Engineering ◽

10.23956/ijarcsse/v7i7/0210 ◽

2017 ◽

Vol 7 (7) ◽

pp. 268

Author(s):

Chauhan Usha ◽

Singh Rajeev Kumar

Keyword(s):

Digital Media ◽

Firefly Algorithm ◽

Image Watermarking ◽

Singular Values ◽

Robust Watermarking ◽

Scaling Factors ◽

Geometric Attacks ◽

Host Image ◽

Firefly Optimization ◽

Value Decomposition

Digital Watermarking is a technology, to facilitate the authentication, copyright protection and Security of digital media. The objective of developing a robust watermarking technique is to incorporate the maximum possible robustness without compromising with the transparency. Singular Value Decomposition (SVD) using Firefly Algorithm provides this objective of an optimal robust watermarking technique. Multiple scaling factors are used to embed the watermark image into the host by multiplying these scaling factors with the Singular Values (SV) of the host image. Firefly Algorithm is used to optimize the modified host image to achieve the highest possible robustness and transparency. This approach can significantly increase the quality of watermarked image and provide more robustness to the embedded watermark against various attacks such as noise, geometric attacks, filtering attacks etc.

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Numerical Performances Study of Curved Photovoltaic Panel Integrated with Phase Change Material

Mechanics and Mechanical Engineering ◽

10.2478/mme-2018-0112 ◽

2020 ◽

Vol 22 (4) ◽

pp. 1439-1452

Author(s):

Mohamed L. Benlekkam ◽

Driss Nehari ◽

Habib Y. Madani

Keyword(s):

Phase Change ◽

Phase Change Material ◽

Numerical Study ◽

Numerical Data ◽

Navier Stokes ◽

Photovoltaic Panel ◽

Pv Panel ◽

Energy Equations ◽

Solid Liquid ◽

Change Material

AbstractThe temperature rise of photovoltaic’s cells deteriorates its conversion efficiency. The use of a phase change material (PCM) layer linked to a curved photovoltaic PV panel so-called PV-mirror to control its temperature elevation has been numerically studied. This numerical study was carried out to explore the effect of inner fins length on the thermal and electrical improvement of curved PV panel. So a numerical model of heat transfer with solid-liquid phase change has been developed to solve the Navier–Stokes and energy equations. The predicted results are validated with an available experimental and numerical data. Results shows that the use of fins improve the thermal load distribution presented on the upper front of PV/PCM system and maintained it under 42°C compared with another without fins and enhance the PV cells efficiency by more than 2%.

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