scholarly journals Exploiting the S-Iteration Process for Solving Power Flow Problems: Novel Algorithms and Comprehensive Analysis

Electronics ◽  
2021 ◽  
Vol 10 (23) ◽  
pp. 3011
Author(s):  
Marcos Tostado-Véliz ◽  
Salah Kamel ◽  
Ibrahim B. M. Taha ◽  
Francisco Jurado
Keyword(s):  
Iterative Procedure ◽  
Power Flow ◽  
Iteration Process ◽  
Industrial Applications ◽  
Comprehensive Analysis ◽  
Eighth Order ◽  
Flow Problems ◽  
Overall Performance ◽  
Newton Raphson ◽  
Novel Algorithms

In recent studies, the competitiveness of the Newton-S-Iteration-Process (Newton-SIP) techniques to efficiently solve the Power Flow (PF) problems in both well and ill-conditioned systems has been highlighted, concluding that these methods may be suitable for industrial applications. This paper aims to tackle some of the open topics brought for this kind of techniques. Different PF techniques are proposed based on the most recently developed Newton-SIP methods. In addition, convergence analysis and a comparative study of four different Newton-SIP methods PF techniques are presented. To check the features of considered PF techniques, several numerical experiments are carried out. Results show that the considered Newton-SIP techniques can achieve up to an eighth order of convergence and typically are more efficient and robust than the Newton–Raphson (NR) technique. Finally, it is shown that the overall performance of the considered PF techniques is strongly influenced by the values of parameters involved in the iterative procedure.

scholarly journals Comparing Different Approaches for Solving Large Scale Power-Flow Problems With the Newton-Raphson Method

IEEE Access ◽  
2021 ◽  
Vol 9 ◽  
pp. 56604-56615
Author(s):  
Manolo D'orto ◽  
Svante Sjoblom ◽  
Lung Sheng Chien ◽  
Lilit Axner ◽  
Jing Gong
Keyword(s):  
Power Flow ◽  
Large Scale ◽  
Flow Problems ◽  
Newton Raphson ◽  
Raphson Method

GENETIC ALGORITHMS WITH DYNAMIC MUTATION RATES AND THEIR INDUSTRIAL APPLICATIONS

2008 ◽  
Vol 07 (02) ◽  
pp. 103-128 ◽  
Author(s):  
K. Y. CHAN ◽  
T. C. FOGARTY ◽  
M. EMIN AYDIN ◽  
S. H. LING ◽  
H. H. C. IU
Keyword(s):  
Genetic Algorithms ◽  
Mutation Rate ◽  
Power Flow ◽  
Optimal Power Flow ◽  
Industrial Applications ◽  
Solution Stability ◽  
Solution Quality ◽  
Dynamic Mutation ◽  
Flow Problems ◽  
Main Effects

This paper presents a method on how to estimate main effects of gene representation. This estimate can be used not only to understand the domination of genes in the representation but also to design the mutation rate in genetic algorithms (GAs). A new approach of dynamic mutation rate is proposed by integrating the information of the main effects into the genes. By introducing the proposed method in GAs, both solution quality and solution stability can be improved in solving a set of parametrical test functions. The algorithm was applied to two illustrative applications to evaluate the performance of the proposed method, where the first application is on solving uncapacitated facility location problems and the next is on optimal power flow problems, which are employed. Results indicate that the proposed method yields significantly better results than the existing methods.

scholarly journals On a comparison of Newton–Raphson solvers for power flow problems

2019 ◽  
Vol 360 ◽  
pp. 157-169 ◽  
Author(s):  
Baljinnyam Sereeter ◽  
Cornelis Vuik ◽  
Cees Witteveen
Keyword(s):  
Power Flow ◽  
Flow Problems ◽  
Newton Raphson

scholarly journals On the Applicability of Two Families of Cubic Techniques for Power Flow Analysis

Energies ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 4108
Author(s):  
Marcos Tostado-Véliz ◽  
Salah Kamel ◽  
Francisco Jurado ◽  
Francisco J. Ruiz-Rodriguez
Keyword(s):  
Power Flow ◽  
Flow Analysis ◽  
Comprehensive Analysis ◽  
Numerical Results ◽  
Computational Burden ◽  
Power Flow Analysis ◽  
Newton Raphson

This work presents a comprehensive analysis of two cubic techniques for Power Flow (PF) studies. In this regard, the families of Weerakoon-like and Darvishi-like techniques are considered. Several theoretical findings are presented and posteriorly confirmed by multiple numerical results. Based on the obtained results, the Weerakoon’s technique is considered more reliable than the Newton-Raphson and Darvishi’s methods. As counterpart, it presents a high computational burden. Regarding this point, the Darvishi’s technique has turned out to be quite efficient and fully competitive with the Newton’s scheme.

scholarly journals Towards Improving the Durability and Overall Performance of PV-ETICS by Application of a PCM Layer

2021 ◽  
Vol 11 (10) ◽  
pp. 4667
Author(s):  
Dariusz Heim ◽  
Anna Wieprzkowicz ◽  
Dominika Knera ◽  
Simo Ilomets ◽  
Targo Kalamees ◽  
...  
Keyword(s):  
Power Flow ◽  
Thermal Stabilization ◽  
Thermal Ageing ◽  
Electricity Production ◽  
Latent Heat Storage ◽  
Local Climate ◽  
Building Performance Simulation ◽  
Building Integrated Photovoltaics ◽  
Pv Panel ◽  
Overall Performance

The main goal of the paper was to numerically analyse the risk of overheating of the Energy Activated External Thermal Insulation Composite System (En-ActivETICS) as an example of Building Integrated Photovoltaics (BIPV). The analyses were conducted with the coupled power flow method (thermal and electrical) for 20 European cities. All locations were analysed considering the local climate in the context of building performance simulation as well as electricity production. The obtained results allowed for the determination of the risk of overheating, which can influence system durability, accelerated thermal ageing, and overall performance. It was revealed that the risk of overheating above 80 °C is possible in almost all locations; however, the intensity considerably differs between southern and northern Europe. The effect of latent heat storage for better thermal stabilization and overall performance was determined numerically for all locations. Finally, the improved solution with a phase change material (PCM) layer beside the PV panel was proposed individually for specific climatic zones, considering the required heat capacity. The maximum panel temperature for improved En-ActivETICS does not exceed 85 °C for any location.

scholarly journals A Clique Merging Algorithm to Solve Semidenite Relaxations of Optimal Power Flow Problems

2020 ◽  
pp. 1-1 ◽  
Author(s):  
Julie Sliwak ◽  
Erling Andersen ◽  
Miguel F Anjos ◽  
Lucas Letocart ◽  
Emiliano Traversi
Keyword(s):  
Power Flow ◽  
Optimal Power Flow ◽  
Flow Problems ◽  
Merging Algorithm ◽  
Optimal Power

Research on the Reliability of Box for Gear Test Bed

2011 ◽  
Vol 121-126 ◽  
pp. 1744-1748
Author(s):  
Xiang Yang Jin ◽  
Tie Feng Zhang ◽  
Li Li Zhao ◽  
He Teng Wang ◽  
Xiang Yi Guan
Keyword(s):  
Power Flow ◽  
Dynamic Performance ◽  
Three Dimensional ◽  
Design Parameters ◽  
The Finite Element Method ◽  
Test Bed ◽  
Kinematics Simulation ◽  
Beveloid Gears ◽  
Overall Performance

To determine the efficiency, load-bearing capacity and fatigue life of beveloid gears with intersecting axes, we design a mechanical gear test bed with closed power flow. To test the quality of its structure and predict its overall performance, we establish a three-dimensional solid model for various components based on the design parameters and adopt the technology of virtual prototyping simulation to conduct kinematics simulation on it. Then observe and verify the interactive kinematic situation of each component. Moreover, the finite element method is also utilized to carry out structural mechanics and dynamics analysis on some key components. The results indicate that the test bed can achieve the desired functionality, and the static and dynamic performance of some key components can also satisfy us.

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