18-07-2010, 10:31 AM
hai i am harshiti...i want a full seminar report on flexible ship electric power system design and its ppt also..
18-07-2010, 10:31 AM
hai i am harshiti...i want a full seminar report on flexible ship electric power system design and its ppt also..
22-09-2010, 11:01 AM
hi
pls go through the following thread for more details on 'flexible ship electric power system design' http://www.seminarprojectstag/Flexible-S...Design-pdf
14-10-2010, 11:28 AM
Prepared by:
Dr. K. L. Butler and Dr. M. Ehsani Abstract This paper discusses new techniques which will reduce manning requirements and increase the reliability of continuous service through automation of functions related to the ship's electrical system. Its functions include monitoring and control, automated system failure analysis and identification, automated intelligent system reconfiguration and restoration, and self-optimizing power system architecture under partial failure. New materials such as high energy magnets and high temperature superconductors are either available or on the horizon. New technologies are an important driver of new power system concepts and architectures. This paper also introduces new approaches for designing ship power systems by using several new technologies. Introduction Protective devices were developed to monitor the essential parameters of electrical power systems and then through built-in logic, determine the degree of configuration of the system necessary to limit the damage to components and equipment and to enhance the continuity of electric service for the vessel (Ykema 1988). Fuses are the oldest form of protective devices used in electrical power systems in commercial systems and on navy vessels. Circuit breakers were added around the turn of the century. The first electronic solid-state overcurrent protective device used by the Navy was installed on the 4,160 power system in Nimitz class carriers. Navy systems of today supply electrical energy to sophisticated weapons systems, communications systems, navigational systems, and operational systems. To maintain the availability of energy to the connected loads to keep all systems and equipment operational, the navy electrical systems utilize fuses, circuit breakers, and protective relays to interrupt the smallest portion of the system under any abnormal condition. The existing protection system has several shortcomings in providing continuous supply under battle and certain major failure conditions. The control strategies which are implemented when these types of damage occur are not effective in isolating only the loads affected by the damage, and are highly dependent on human intervention to manually reconfigure the distribution system to restore supply to healthy loads. This paper discusses new techniques which aim to overcome the shortcomings of the protective system. These techniques are composed of advanced monitoring and control, automated failure location, automated intelligent system reconfiguration and restoration, and selfoptimizing under partial failure. These new techniques will eliminate human mistakes, make intelligent reconfiguration decisions more quickly, and reduce the manpower required to perform the functions. It will also provide optimal electric power service through the surviving system. With fewer personnel being available on ships in the future, the presence of this automated system on a ship may mean the difference between disaster and survival. for more details, please visit http://psalserver.tamu.edu/main/papers/2...Ehsani.pdf
23-03-2017, 02:02 AM
Hi
This is Saroja I want a full seminar report on flexible ship electric power system design and ppt....Pls.....
24-03-2017, 09:17 AM
The first electric power system was installed on the USS Trenton in 1883 (Ykema 1988). The system consisted of a single dynamo supplying current to 247 lamps at a voltage of 10 volts d.c. Until the period from 1914 to 1917, the earliest electric power systems were mainly d.c. With loads consisting mainly of motors and lighting. It was during World War I that 230 volt, 60 Hz energy systems were introduced seriously into warships.
Since World War II, the ship's electrical systems have continued to improve, including the use of 4,160 volt power systems and the introduction of solid-state electronic protection devices. Protection devices were developed to monitor the essential parameters of electrical power systems and then, through built-in logic, determine the degree of system configuration necessary to limit damage to the continuity of the electrical service to the ship (Ykema 1988) . Fuses are the oldest form of protection devices used in electrical power systems in commercial systems and naval ships. Circuit breakers were added around the turn of the century. The first solid state electronic overload protection device used by the Navy was installed in the 4,160 power system in Nimitz class vehicles. Today's naval systems supply electrical power to sophisticated weapon systems, communications systems, navigation systems and operating systems. To maintain the availability of energy in the connected loads to keep all systems and equipment operative, naval electrical systems use fuses, circuit breakers and protective relays to interrupt the smallest part of the system under any abnormal condition. The existing protection system has several shortcomings in the continuous supply in battle and in certain important failure conditions. The control strategies that are implemented when these types of damage occur are not effective in isolating only the loads affected by the damage and are highly dependent on human intervention to manually reconfigure the distribution system to restore the supply to healthy loads. This paper discusses new techniques that aim to overcome the deficiencies of the protective system. These techniques are composed of advanced monitoring and control, automated fault localization, automated reconfiguration and restoration of intelligent systems, and auto-optimization under partial failure. These new techniques will eliminate human error, make intelligent reconfiguration decisions faster, and reduce the workforce needed to perform the functions. It will also provide optimal service of electric power through the survivor system. With fewer personnel available on ships in the future, the presence of this automated system on a ship can mean the difference between disaster and survival. |
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