1,721,062 research outputs found
Optimal layout of parallel power cables to minimize the stray magnetic field
Full text linkThis paper deals with three-phase power lines operated by parallel power cables. In these systems each phase is made up of several parallel subconductors and it is well known that the sequence of the subconductors influences the magnetic field generated by the power line. This paper proposes a new approach to identify the optimal arrangement of the power cables that minimizes the stray magnetic field. Unlike the design methods covered by the literature, this paper proposes a deterministic procedure that is based mainly on a simple geometrical indicator. This geometrical quantity makes it possible to analyze all the configurations in order to create a small subset of candidate solutions. From this subset the optimal solution is then identified quickly and easily by computing and comparing the stray field. A full validation of the proposed approach is performed by comparing it with a standard method based on genetic algorithm. The results of the validation also provide a useful table that covers all the cases from 2 to 6 subconductors for each phase. Furthermore, it is shown that the geometrical indicator makes it possible to obtain a good cable arrangement in a direct way, without performing any magnetic field evaluations
Passive shielding system of a meshed and conductive type with high magnetic coupling passive loop
No full textSistema di schermatura passiva di tipo magliato e conduttivo ad elevato accoppiamento magnetico
No full textApplication of High Magnetic passive loop to the magnetic mitigation of HV junction zone
No full textOptimal design of "High Magnetic Coupling Passive Loop" for power lines field mitigation
No full textAnalytical method for forces between current carrying infinite bars
Full text linkPurpose - The purpose of this paper is to calculate forces between rectangular conductors with a uniform current density as can be found in the long coils as used in linear actuators and planar motors. Design/methodology/approach - The proposed methodology relies on a single analytical equation that is used to compute all the force components. Findings - Several comparisons with other available techniques are provided. All the comparisons confirm the validity of the proposed analytical method. Originality/value - In the literature, other analytical methods for the force computation can be found. However, these often have limitations (e.g. only adjacent conductors or non-adjacent conductors). This paper adds a new compact expression that covers all the possible configurations at the same time. This new tool holds for all the analytical expression found in the literatur
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