Results 21 to 30 of about 326,821 (208)
Line and Subdivision Graphs Determined by
Mathematics, 2019 Let T 4 = { ± 1 , ± i } be the subgroup of fourth roots of unity inside T , the multiplicative group of complex units. For a T 4 -gain graph Φ = ( Γ , T 4 , φ ) , we introduce gain functions on ...
Abdullah Alazemi +4 more
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Frequency and voltage partitioning in presence of renewable energy resources for power system (example: North Chile power network) [PDF]
, 2016 This paper investigates techniques for frequency and voltage partitioning of power network based on the graph-theory. These methods divide the power system into distinguished regions to avoid the spread of disturbances and to minimize the interaction ...
Al-Emadi, N. A. +3 more
core +1 more source
Journal of Mechatronics, Electrical Power, and Vehicular Technology, 2012 This paper discusses magnetic simulation and analysis of radial flux permanent magnet generator (PMG) using finite element method (FEM) by utilizing open source software FEMM 4.2. The specification of generator is 25 V, 28 A, 3 phase, 300 rpm.
Pudji Irasari +2 more
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Multiobjective Approach to Schedule DAG Tasks on Voltage Frequency Islands
IEEE Access, 2023 Scheduling a Directed Acyclic Graph (DAG) on voltage frequency islands involves dividing the available processing units into multiple islands with varying voltage and frequency levels and then mapping the tasks of the DAG to the islands while minimizing ...
Sanchit, Navjot Singh, Jagpreet Singh
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Distributed consensus control for voltage tracking and current distribution in DC microgrid
Ain Shams Engineering Journal, 2023 DC microgrids are extensively researched because of advancements in power electronics, penetration of DC loads, and the growing demand for DC power. The DC microgrid is also broached as a multi-agent system (MAS) because of its distributed nature.
Muhammad Ahsan, Theyab R. Alsenani
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Lifting Graph Automorphisms by Voltage Assignments
European Journal of Combinatorics, 2000 The authors provide the first systematic combinatorial treatment of the automorphism lifting problem in the context of graphs. They make consistent use of several new fundamental concepts: the action of the fundamental groupoid, the notion of a voltage space, various kinds of invariance of voltage spaces, and the geometry of the lifted actions by means
Malnič, Aleksander +2 more
openaire +2 more sources
Hitting Times of Walks on Graphs through Voltages [PDF]
Journal of Probability, 2014 We derive formulas for the expected hitting times of general random walks on graphs, in terms of voltages, with very elementary electric means. Under this new light we revise bounds and hitting times for birth-and-death Markov chains and for walks on graphs with cutpoints, and give some exact computations on the necklace graph.
José Luis Palacios +2 more
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LDPC codes from voltage graphs
2008 IEEE International Symposium on Information Theory, 2008 Several well-known structure-based constructions of LDPC codes, for example codes based on permutation and circulant matrices and in particular, quasi-cyclic LDPC codes, can be interpreted via algebraic voltage assignments. We explain this connection and show how this idea from topological graph theory can be used to give simple proofs of many known ...
Kelley, Christine A., Walker, Judy L.
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An Optimal and Distributed Method for Voltage Regulation in Power Distribution Systems [PDF]
, 2015 This paper addresses the problem of voltage regulation in power distribution networks with deep-penetration of distributed energy resources, e.g., renewable-based generation, and storage-capable loads such as plug-in hybrid electric vehicles. We cast the
Dominguez-Garcia, Alejandro +3 more
core +2 more sources
Factors Affecting Values of Short-Circuit Current Levels in Electrical Power Engineering Systems
Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2003 Short-circuit current levels in power networks with various voltage class are characterized by probabilistic nature. They are discretely changeable, depend on a number of factors and have a significant importance while selecting electric equipment, a ...
F. M. Erkhan
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