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In recent years, there has been a shift from closed systems, with clearly defined borders, whose behavior is completely determined a priori, towards open systems. An open system is an independently developed system, which is able to communicate and cooperate with other open systems in an ad-hoc manner, at runtime. Moreover, due to their openness, such systems may be used in various contexts. Whenever...
Automated Test Systems (ATSs) can join the Internet of Things (IoT) at multiple layers and benefit both the overall IoT concept as well as advance the goals of ATSs. Logistics and sustainment are traditionally brought into the IoT conversation through asset tracking, transportation, and Health and Usage Monitoring Systems (HUMS). However the IoT has additional aspects that can be related to logistics...
This paper first gives a brief review of Integrated Vehicle Health Management (IVHM) concept, functions and architecture, then summarizes recent international research and development activities in this area especially in commercial aviation industry. A clear trend is that IVHM has become a focus in aerospace industry. All commercial aircraft manufacturers have spent significant amount of resources...
The article deals with the condition estimation of 6-10 kV cable lines (CL) with impregnated paper insulation (IPI) taking into account their length and operational reliability measures according to failure statistics. The subject under study is urgent because of the lack of reasonable insulation diagnostics of CL. The article theoretically justifies the CL diagnostics with non-destructive methods...
Integrated vehicle health management (IVHM) technology focused on the aircraft-level fault diagnosis, prediction and health management. The application of IVHM is the inevitable development trend of the next generation aircraft CBM, it is important for aircraft to improve security, maintainability, performance and reduce the operation cost. This paper based on a large number of documents, describes...
With the development of Kunming's economy and infrastructure construction in China, it's emergency for Kunming bridge and tunnel maintenance departments to improve the level of computerization and the work efficiency. By analyzing WebGIS technology and the business requirements of maintenance departments, this paper presents a design for an inspection and maintenance management system used in urban...
In this paper we introduce a monitoring system framework to enhance distribution transformer operation. The system is implemented on top of an embedded Linux board. Its communication conforms to the IEC61850 standard. The functionality of security network, IED configuration, database management and significant performances are all implemented. Moreover, the metering function achieves accuracy specified...
This paper describes the work of CIGRE's JWG B5-D2.46 which is published in technical brochure #603. Described in this paper is a summary of the challenges protection and control engineers and technicians face when required to manage cyber security applications and process for their systems, subsystems and components. When compared to their classical duties for modern power system substation automation...
Increasing financial and service demand pressures drives the London Underground maintenance business to shift its focus from reactive to proactive maintenance. Part of the strategy is to enhance the current condition monitoring capability through the introduction of intelligent remote condition monitoring systems that could provide advisory information regarding the optimum time to undertake maintenance...
Plant operation can be supported by continuous on-line monitoring of equipment states, enabling users to move towards predictive maintenance and to postpone inspection outages, reducing downtime and cost. On-line process monitoring and operator advisory systems support early detection of causes for sub-optimal plant operation and thus help to reduce fuel cost. Remote access to plant data makes it...
Improving Distribution System Resiliency will take considerable time, effort and innovation. Much of the effort is dependent upon modernizing the grid. All of the stakeholders involved in this effort are aware that grid modernization is an expensive and complex endeavor, and where this endeavor has many conflicting interests and goals. Yet numerous organizations and associations have begun the effort...
Field devices belong to the primary assets of an industrial plant. From the perspective of plant asset management, Computerized Maintenance Management Systems (CMMS) and Device Management Systems (DMS) share some responsibility for the well-being of these devices. CMMS and DMS reside on the opposite ends of the automation pyramid, have very different scopes, and there are multiple CMMS vendors that...
In allusion to the deficiency of traditional key operation ascertaining methods, impact factors to measure the key of maintenance operation are analyzed from the aspect of value, and the indexes are ascertained to evaluate the key of parts batch-repair progress operation. The membership vectors of qualitative indexes are obtained through mark membership table, and the membership vectors of quantitative...
The paper gives an insight into Croatian Transmission System Operator, overview of operational activities, and issues regarding power quality and customer relations. It also gives a summary of quality regulations concerning customers in France, UK, Italy, Slovenia and Netherlands. An example of what the possible power quality contracts for customers should have is given.
In order to adapt the construction of smart gird, the characteristics and targets of development of smart hydropower plant are researched by analysis of the deficiency of current hydropower plants. According to the situation of the domestic hydropower plant, frame as well as the hierarchy structure of the smart hydropower plant is constructed. The theory of condition based maintenance is researched...
The Boeing Company Support Equipment & Services (SES) organization, in partnership with the Army, Ground Marine Corps and Navy, is leveraging the Cloud to create a Network Centric Support Environment for Support Equipment (SE) by developing and deploying the Next Generation Operations Management Software (NxOMS) within the Department of Defense (DoD).
This paper examines adverse selection and moral hazard issues of performance-based infrastructure maintenance contracts signed at different times, and therefore causing payoff externality. These problems are identified by private agent monitoring. Adverse selection and moral hazard cannot be deterred by penalty systems and competitive tendering if maintenance is carried out under a sequence of individual...
With the fast development of the smart grid technology in china, more and more attentions were paid to the condition-based maintenance of the high voltage equipment. To realize the objectives, the standardizations of the online monitoring system hierarchy structure and function are the key steps in the development of the online monitoring system in pilot smart substation project. According to the...
The August 2003 blackout impacted over 50 million people and resulted in the loss of 61,800 megawatts (MW) of load in eight states and one Canadian Province.1 Following the blackout, the U.S. - Canada Power System Outage Task Force made several recommendations, the number one being to “[m]ake reliability standards mandatory and enforceable, with penalties for noncompliance”.2 The Energy Policy Act...
Due to an increasing amount of dam damage or break in resent years, great importance is attached to dam safety management in many countries. This paper analyzes the status of Chinese dam safety management according to the integral safety concept for dam including structural safety, dam safety monitoring, operational safety and emergency planning. Comparing with the safety management of large and medium-sized...
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