Investigation of phase shifting transformers in distribution systems for harmonics mitigation

2014 ◽  
Author(s):  
Gabriel Malagon Carvajal ◽  
Gabriel Ordonez Plata ◽  
Wilson Giraldo Picon ◽  
Julio Cesar Chacon Velasco
Keyword(s):  
Distribution Systems ◽  
Phase Shifting

A Phase Shifting Technique for Harmonic Reduction in Modern Electrical Distribution Systems

2015 ◽  
Vol 785 ◽  
pp. 450-454
Author(s):  
Pais Saedin ◽  
A. Idzwan Tajudin ◽  
Ahmad Asri Abd Samat ◽  
Nurul Huda Ishak ◽  
Mohamad Adha Mohamad Idin
Keyword(s):  
Distribution System ◽  
Distribution Systems ◽  
Phase Shifting ◽  
Current Phase ◽  
Nonlinear Load ◽  
Electrical Distribution Systems ◽  
Harmonic Reduction ◽  
Phase Shifting Technique ◽  
Electrical Distribution ◽  
Linear Load

A conventional electrical distribution system are not designs to deal with harmonics because at that time the linear load conquer the consumer demand. Over the years with growing use of nonlinear load such as personal computer can contribute to harmonics current occur on electrical distribution system. With the presence of harmonics current on electrical distribution system leads in degradation of system performance. Therefore necessary actions are needed in order to minimize harmonics effect. The predominant harmonics should be eliminated from electrical distribution system such as 5th and 7thof harmonics current component. The eliminating process is achieved by implementing the current phase shifting technique on new concept of modern electrical distribution system at Makmal Komputer 3, Faculty of Electrical Engineering, UiTM Pulau Pinang.

An Ontological Approach to Water Distribution Systems Management

WRPMD'99 ◽  
1999 ◽  
Author(s):  
P. Costa ◽  
A. Esposito ◽  
C. Gualtieri ◽  
D. Pianese ◽  
G. Pulci Doria ◽  
...  
Keyword(s):  
Distribution Systems ◽  
Water Distribution ◽  
Water Distribution Systems ◽  
Systems Management ◽  
Ontological Approach

Robust Estimation of Integrated Hydraulics and Parameters in Water Distribution Systems

2001 ◽  
Author(s):  
Mietek A. Brdys ◽  
Kazimierz Duzinkiewicz ◽  
Michal Grochowski ◽  
Tomasz Rutkowski
Keyword(s):  
Robust Estimation ◽  
Distribution Systems ◽  
Water Distribution ◽  
Water Distribution Systems

TO THE STABILITY OF TANK VEHICLES IN THE BRAKE MODE

2019 ◽  
pp. 27-32
Author(s):  
Denys Popelysh ◽  
Yurii Seluk ◽  
Sergyi Tomchuk
Keyword(s):  
Mathematical Model ◽  
Control Systems ◽  
Distribution Systems ◽  
Traffic Accidents ◽  
Road Traffic ◽  
Center Of Mass ◽  
Dynamic Processes ◽  
Course Stability ◽  
The Stability ◽  
Tank Vehicles

This article discusses the question of the possibility of improving the roll stability of partially filled tank vehicles while braking. We consider the dangers associated with partially filled tank vehicles. We give examples of the severe consequences of road traffic accidents that have occurred with tank vehicles carrying dangerous goods. We conducted an analysis of the dynamic processes of fluid flow in the tank and their influence on the basic parameters of the stability of vehicle. When transporting a partially filled tank due to the comparability of the mass of the empty tank with the mass of the fluid being transported, the dynamic qualities of the vehicle change so that they differ significantly from the dynamic characteristics of other vehicles. Due to large displacements of the center of mass of cargo in the tank there are additional loads that act vehicle and significantly reduce the course stability and the drivability. We consider the dynamics of liquid sloshing in moving containers, and give examples of building a mechanical model of an oscillating fluid in a tank and a mathematical model of a vehicle with a tank. We also considered the method of improving the vehicle’s stability, which is based on the prediction of the moment of action and the nature of the dynamic processes of liquid cargo and the implementation of preventive actions by executive mechanisms. Modern automated control systems (anti-lock brake system, anti-slip control systems, stabilization systems, braking forces distribution systems, floor level systems, etc.) use a certain list of elements for collecting necessary parameters and actuators for their work. This gives the ability to influence the course stability properties without interfering with the design of the vehicle only by making changes to the software of these systems. Keywords: tank vehicle, roll stability, mathematical model, vehicle control systems.

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