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resiliency-matrix
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Smart Grid Planning Considering Renewables and Demand Response Programs
, M.Sc. Thesis Sharif University of Technology ; Hosseini, Hamid (Supervisor)
Abstract
The concept of smart grid to realize the triple goals of economy, reliability and environmental improvements has taken advantage of modern equipment and new structures. Beside these goals smart grids seek to increase the level of penetration of renewable resources for environmental improvement. On the other hand, increase in dispersed products and problems resulting from increasing these non-dispatchable resources thus led the researches to design a new structure called microgrid. Microgrid improves the reliability of these resources and facilities their uses. But uncertainty and intermittency in producing renewable energy resources are among the main challenges facing these microgrids....
Improving the Resiliency of Distribution Grids Owning Different Distributed Generation (DG) Resources by Optimal Switching Device Placement and Microgrids Formation
, M.Sc. Thesis Sharif University of Technology ; Abbaspour Tehrani Fard, Ali (Supervisor)
Abstract
In recent years, climate change due to greenhouse gases caused an increase in frequency and intensity of the natural disasters such as hurricanes, blizzards and floods. Moreover, it is anticipated that such events will increase in the future. As a result, power system decision makers are looking for methods to improve power system resiliency against such natural disasters with low occurrence probability and high impact. In this report, the distribution system resiliency has improved via placing remote control sectionalizing switches and micro grids formation during natural disasters. In this regard, the concept of resiliency and its characteristics along with the effect of remote control...
A Survey of Resiliency in Structure of the Service-Oriented Supply Chain (Bank System)
, M.Sc. Thesis Sharif University of Technology ; Kianfar, Farhad (Supervisor)
Abstract
In today’s competitive market, IT development, increasing customers’ expectations, economic globalization and other modern competitive priorities, made organizations change. Need to respond to better customers’ demands, competition changing condition, and increasing environmental noises are the motivations to notice resiliency. Moreover, to increase competitiveness in such a changing business environment, companies should cooperate with their customers and providers to not only conduct the operation simply and effectively but also to reach a level of rapidity and resiliency which companies can’t get through solely. Supply chains are effective. However, they are complicated since they have...
Design and Modeling of Resilient Communication Networks for Power Smart Grids
, Ph.D. Dissertation Sharif University of Technology ; Eshraghniaye Jahromi, Abdolhamid (Supervisor)
Abstract
Electric power supply has been the backbone of the growth in the societies in the current age. The future development of electric industry is towards implementing smart grids. Smart grids are based on a communication infrastructure, integrated with power system, which establish its diverse and real time communication requirements. Such an infrastructure must cover all stakeholders, and their different operational and non-operational needs, as well as it should be fast, reliable, affordable, and resilient. Due to high and diverse performance requirements of power communication systems, electric companies prefer to construct their own communication networks privately.
The focus of...
The focus of...
Analysis and Solution Proposal for Improving the Resiliency of High Voltage Cathode Power Supply
, M.Sc. Thesis Sharif University of Technology ; Kaboli, Shahriyar (Supervisor) ; Safdarian, Amir (Co-Supervisor)
Abstract
High voltage power supplies (HVPS) are widely used to supply the vacuum tubes. The function of this power supply is disturbed by some internal and external faults. One of the external faults is the arc fault in the tube. The amount of delivered energy from the HVPS to the tube is an important issue during the arc fault in the tube. The conventional protection mechanism consists of a shunt crowbar device which divert the fault current from the tube arc. The crowbar circuit is usually built with thyristor in most cases. This type of crowbar cannot be turned off simply by protection command. It is a drawback since if the fault is transient such as arc in the load or false fault detection is...
A framework for resiliency assessment of power communication networks
, Article Scientia Iranica ; Volume 21, Issue 6, 2014, Pages 2399-2418 , 2014 , Pages 2399-2418 ; ISSN: 10263098 ; Jahromi, A. E ; Sharif University of Technology
Abstract
Modern societies are strongly dependent on the continuous and efficient operation of electric power systems as a critical infrastructure. Besides, information and communication systems play a crucial role in the resiliency enhancement of the power system. As power communication systems are vulnerable against physical and cyber attack, these systems themselves can be an internal source of threat for power grids. Therefore, there is a need to identify and study the threats and weaknesses of power communication systems using a comprehensive framework. This framework helps power communication network planners evaluate all challenges and their numerous effects on the system, as a very important...