|Title:||System assurance techniques applied to railway electrical traction power system|
|Subject:||Electric railroads -- Power supply.|
Hong Kong Polytechnic University -- Dissertations
|Department:||Faculty of Engineering|
|Pages:||x, 189 p. : ill. ; 30 cm.|
|Abstract:||It is a prevalent practice in today's industries to apply a system engineering approach throughout the life cycle of a system. This is particularly important in railway industry as there are very complex interfaces among the many systems and subsystem such as signalling system, traction power system, rolling stocks, ventilation system, fire system, etc. All these interrelated systems and subsystems lead to the need of tremendous system integration effort. Railways also require very high capital investments and due to their long life span, life cycle costs are a major consideration. Except for the project stages, operation and maintenance of railways is, therefore, very important. Railway projects have also many stakeholders including passengers, government, operator company, contractors and sub-contractors, and general public. Hence, there are extreme expectations and requirements on the safety and operating performance of railways. Safety is always prime consideration of railways. Railways cannot afford any mistakes due to the catastrophic consequences of incidents such as derailments. All possible risk mitigation measures must be implemented to eliminate or further reduced the risks to passengers, public and environment. Also due to the serious impact of service disruptions there is a high expectation on the operating performance of railways. Passengers now cannot even accept a few minutes delays. All these result in onerous requirements of Reliability, Availability, Maintainability and Safety (RAMS) targets. At this point, "System Assurance" plays an important role in assuring operational RAMS of railways. System assurance techniques applied to the design, procurement, manufacture, installation, and testing and commissioning of the railway system together with effective maintenance regimes and competence and safety culture of the operators and maintainers can all together achieve the onerous requirements of RAMS targets. It is the primary objective of this dissertation to investigate the system assurance techniques applied to railway electrical traction power systems during all project phases and operation and maintenance phase as well. Electrical traction power system is the vital part of the railway system which responsible of providing the necessary power to drive the trains. Railway electrical traction power system includes feeder stations, the current collection system, the train-borne traction control electronics and the traction motors.|
|Rights:||All rights reserved|
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