The railway system is one of the safest, most efficient, and environmentally friendly means land transport for people goods. However, as demand mobility has increased, current shown some weaknesses, requiring an increase in catenary power order to be able supply longer trains faster locomotives, well rail traffic. This paper proposes a control algorithm implemented sectioning post-Rail Power Co...

Power lines are cables that carry electrical power from a power plant to an electrical substation. They must be connected between the tower structures in such a way that ensures minimum tension and sufficient clearance from the ground. Power lines can stretch and sag with the changing weather, eventually exceeding the planned tolerances. The excessive sags can then cause serious accidents, whil...

Address for correspondence Ki-Young Jung, MD Department of Neurology, Korea University Medical Center, Korea University College of Medicine, 73 Inchon-ro, Seongbuk-gu, Seoul 136-705, Korea Tel: +82-2-920-6649 Fax: +82-2-925-2472 E-mail: [email protected] Objectives: Selecting suitable illumination is an integral part of increasing productivity in the office or factory, because poor lighting co...

Optimization is the discipline of adjusting a process so as to optimize some specific set of parameters, without violating some constraints. In this paper an optimization is made by means of weighted sum method, after a multi-objective programming model formed based upon the power supply radius from a substation. The main aim of the model is to enlarge the radius of power supply as much as poss...

This paper presents a method for assessing the voltage and reactive power control impact on the reliability indices of distribution networks. It has been achieved by including network constraints (voltage drop and feeder loading) in the predictive reliability model. The analytical method has been used to evaluate the reliability indices. The proposed method has been tested and validated, using ...

Smart Cities is a domain of great interest in the modern society. The aim of a smart urban environment is to increase citizens’ comfort and quality of life with minimum resources and power consumption and without affecting the natural environment. Street lighting is one of the main interests in such a smart environment. This thesis focuses on implementing a lighting control system that makes st...

This paper proposes Particle Swarm Optimization (PSO) based approach for light intensity control in a Photo Voltaic (PV) supply fed LED lighting system. The output power regulation of LED lighting system is formulated as an optimization problem and the output power regulation is carried out using a real time PSO technique. The concept is first simulated and verified and subsequently implemented...

Several ways of improving the realism of the results of traditional ray tracing are presented. The essential physical quantities of spectral radiant power and spectral radiance and their use in lighting calculations are discussed. Global illumination terms are derived by employing illumination ray tracing for calculation of quickly changing indirect lighting components, and ra-diosity ray traci...

Large perceptual class motor load is the main production equipment of metallurgical enterprise, although has taken independent secondary substation power supply mode, but due to the influence of the impact load, Often appears on the bus voltage drop and low power factor and harmonic big problems, , this article is based on SVC compensation control mechanism, the sectional control mode, the prin...

Description: The goal is to increase the efficiency and reduce the cost of solar power through the integration of PV, Li-battery, and LED lighting technologies. Since all components are in the form of thin films, the PV/battery/LED system can be integrated as a single module. Since half of the materials cost of each device is the substrate, integrated module will also reduce materials costs and...