2007 IEEE Electric Ship Technologies Symposium最新文献

{"title":"ABS Naval Vessel Rules (NVR) for Mission Critical Networks, Software Development, and Safety Critical Control Systems","authors":"M. Roa","doi":"10.1109/ESTS.2007.372076","DOIUrl":"https://doi.org/10.1109/ESTS.2007.372076","url":null,"abstract":"The following paper provides a rationale, background, and summary of how modern information technology is being used effectively by the U.S. navy in mission critical applications for shipboard control, navigation, and interior communication systems. The paper provides a background and summary of the updated American Bureau of Shipping (ABS) naval vessel rules (NVR) requirements for mission critical networks, software development, and safety critical control systems. The Naval Sea Systems Command (NAVSEA) and the American Bureau of Shipping (ABS) have partnered to co-write these rules which were initially drafted by comparing the existing commercial steel vessel rules (SVR) in these areas with current United States Navy shipbuilding practice from recent shipbuilding programs. The requirements for safety critical systems were then derived from the safety of flight (SoF) criteria for U.S. Navy submarine ship control systems. The paper explains the relationship between the Naval Technical Authority and the American Bureau of Shipping and their respective roles in the certification of control, automation, and navigation systems software and networks. The current requirements prescribed in the naval vessel rules are compared and contrasted with the commercial steel vessel rules and the merits and rationale behind each approach are discussed.","PeriodicalId":292080,"journal":{"name":"2007 IEEE Electric Ship Technologies Symposium","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115644875","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Aging of High Voltage Cables by Switching Impulse","authors":"S. Grzybowski, P. Trnka, J.C. Fulper","doi":"10.1109/ESTS.2007.372080","DOIUrl":"https://doi.org/10.1109/ESTS.2007.372080","url":null,"abstract":"The electric ship distribution lines supply various capacitive and inductive loads that must be switched in and out of the electrical power system. These loads result in the cables being exposed to overvoltages caused by switching operation The goal is to determine the reliability of high voltage cables when they are over-stressed by a multitude of switching impulses. The presented study involves the aging of high voltage EPR and XLPE cables by applied switching impulses. Partial discharge and ac breakdown voltage were chosen as the parameters to evaluate the status of the cable.","PeriodicalId":292080,"journal":{"name":"2007 IEEE Electric Ship Technologies Symposium","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127375913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Summary of Recent Work on Reduction Techniques Applied to Electromechanical Modeling","authors":"A. Davoudi, L. Qu, P. Chapman","doi":"10.1109/ESTS.2007.372111","DOIUrl":"https://doi.org/10.1109/ESTS.2007.372111","url":null,"abstract":"This manuscript summarizes progress made toward automated low-order, physics-based modeling techniques for electromechanical devices. These techniques begin with reliable high-order models and extract mathematically a reduced model that preserves the most important dynamic characteristics. Linear and nonlinear model order reduction techniques are set forth. Examples for several aspects of electromechanics such as eddy currents, 3-D effects, saturation, hysteresis, laminated stacks, and relative motion are explored.","PeriodicalId":292080,"journal":{"name":"2007 IEEE Electric Ship Technologies Symposium","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125181556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Integrated Electric Power and Propulsion System on Land An Overview","authors":"M. Benatmane, R. Maltby","doi":"10.1109/ESTS.2007.372057","DOIUrl":"https://doi.org/10.1109/ESTS.2007.372057","url":null,"abstract":"This paper set out to describe the electric ship technology demonstrator and how it is being used to de-risk future technology. The main purpose of the project is to stretch the technology boundaries and extend the understanding. To this end the project is a success with the facility fully integrated and operating as an advanced system.","PeriodicalId":292080,"journal":{"name":"2007 IEEE Electric Ship Technologies Symposium","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130323777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Reduction of Simulation Software Execution Time for Models of Integrated Electric Propulsion Systems through Partitioning and Distribution","authors":"P. Norton, P. Deverill, P. Casson, M. Wood, G. Dudgeon, A. Bennett","doi":"10.1109/ESTS.2007.372063","DOIUrl":"https://doi.org/10.1109/ESTS.2007.372063","url":null,"abstract":"Software time-domain simulation models are useful to the naval engineering community both for the system design of future vessels and for the in-service support of existing vessels. For future platforms, the existence of a model of the vessel's electrical power system provides a means of assessing the performance of the system against defined requirements. This could be at the stage of requirements definition, bid assessment or any subsequent stage in the design process. For in-service support of existing platforms, the existence of a model of the vessel's electrical power system provides a means of assessing the possible cause and effect of operational defects reported by ship's staff, or of assessing the possible future implications of some change in the equipment line-up or operating conditions for the vessel. Detailed high fidelity time-domain simulation of systems, however, can be problematic due to extended execution time. This arises from the model's mathematically stiff nature: models of Integrated Electric Propulsion systems can also require significant computational resource. A conventional time-domain software simulation model is only able to utilize a single computer processor at any one time. The duration of time required to obtain results from a software model could be significantly reduced if more computer processors were utilized simultaneously. This paper details the development of a distributed simulation environment. This environment provides a mechanism for partitioning a time-domain software simulation model and running it on a cluster of computer processors. The number of processors utilized in the cluster ranges between four and sixteen nodes. The benefit of this approach is that reductions in simulation duration are achievable by an appropriate choice of model partitioning. From an engineering perspective, any net timing reduction translates to an increase in the availability of data, from which more efficient analysis and design follows.","PeriodicalId":292080,"journal":{"name":"2007 IEEE Electric Ship Technologies Symposium","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124112945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Graph Trace Analysis Approach to Optimizing Power and Heat Flow for Clustered Computing; An Example of Model Based System of Systems Design and Deployment","authors":"J.W. Rapp, R. Broadwater","doi":"10.1109/ESTS.2007.372112","DOIUrl":"https://doi.org/10.1109/ESTS.2007.372112","url":null,"abstract":"During system of system (SoS) design, many decisions from different engineering disciplines are made and documented. Today, designers increasingly use modeling. For example, they address the issues involved with total cost of ownership by better understanding the interactions of parts and systems. For a large SoS, the labor intense modeling has one potential alternative approach involving the concepts of graph trace analysis (GTA) for distributed processing of integrated system models (ISM). GTA features a wide range of algorithms that flexibly attach to models that stay in their 'engineering domains' in the ISM. A subsystem model for a single domain can be built directly from the engineering design data and then simulated or analyzed. A model using millions of simple objects can be built automatically, including looped and radial systems. Physical dependency linkages between engineering domains can be built directly from reference designators and parts data. Design and deployment of a compute cluster is illustrated by composing an \"integrated system model\" (ISM) from different engineering domain models, where models from different domains are linked together with dependency iterators from GTA. During early design phases, the ISM of a compute cluster might include a short list of engineering design domains. Later, during deployment, sensors and actuators are included in the ISM and GTA algorithms. A need for open, standard parts data is discussed for design tools used in engineering along with data exchange formats that allow product design data to be reused by other design teams.","PeriodicalId":292080,"journal":{"name":"2007 IEEE Electric Ship Technologies Symposium","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115951300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Self-Reconfigurable Electric Power Distribution System using Multi-Agent Systems","authors":"J.G. Gomez-Gualdron, M. Velez-Reyes, L.J. Collazo","doi":"10.1109/ESTS.2007.372083","DOIUrl":"https://doi.org/10.1109/ESTS.2007.372083","url":null,"abstract":"Electric power distribution systems (EPDS) can be found almost everywhere, from ship power systems to data centers. In many critical applications, there is needed to maintain minimal operating capability under fault conditions. Therefore, it is necessary to develop energy distribution control techniques, which allow the implementation of a self-reconfigurable EPDS. This research project focuses on the application of multi agent systems (MAS) to develop a self-reconfigurable EPDS. MAS are composed of multiple interacting software elements, known as agents. An agent is an abstraction that describes autonomous software that \"acts on behalf of a user or another program. A prototype of a MAS is proposed to reconfigure an electric system in order to maximize the number of served loads with highest priority. We used a shipboard simulation test system based on a zonal architecture. The test system is simulated using Matlabtrade Simulinktrade -SimPowerSystems toolbox, and the MAS was implemented using Javatrade programming language and JADE platform.","PeriodicalId":292080,"journal":{"name":"2007 IEEE Electric Ship Technologies Symposium","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131988623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Directly-Coupled Gas Turbine Permanent Magnet Generator Sets for Prime Power Generation On Board Electric Ships","authors":"S. Vijlee, A. Ouroua, L. Domaschk, J. Beno","doi":"10.1109/ESTS.2007.372108","DOIUrl":"https://doi.org/10.1109/ESTS.2007.372108","url":null,"abstract":"Prime power generation on board all-electric ships presents several options that affect fuel consumption, power density, operational effectiveness, and survivability. A study that aims at understanding the effects of some of these options has been conducted and results are reported in this paper. It is found that direct coupling of gas turbines to permanent magnet generators reduces system mass and volume significantly as compared to electric power generation systems installed on present-day navy ships. Furthermore, it is found that a significant benefit this topology brings is a reduction in gas turbine air duct volume if the compact gen-set units are relocated on or near the ship's upper decks. In addition, a combinatory analysis revealed that the choice of the number of generating units and their respective power levels has a significant influence on overall efficiency.","PeriodicalId":292080,"journal":{"name":"2007 IEEE Electric Ship Technologies Symposium","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127806460","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multi-Objective Design Optimisation of Submarine Electric Drive Systems","authors":"B. Skinner, P. Palmer, G. Parks","doi":"10.1109/ESTS.2007.372065","DOIUrl":"https://doi.org/10.1109/ESTS.2007.372065","url":null,"abstract":"The design of an integrated electric propulsion (IEP) system is considered for naval submarine propulsion. A multi-objective genetic algorithm is used to explore potential IEP topologies and designs, including direct-drive, geared-drive and hybrid steam-turbine/electric drive. Typical submarine mission scenarios are simulated and trade-offs in performance are investigated. Compromises in propeller and electric motor efficiency are found, as are large discrepancies in electric motor technology and the technology required for the realisation of direct-electrical propulsion. Multiple electric motors and a hybrid drive approach are found to reduce this discrepancy to an extent that IEP becomes a feasible propulsion option.","PeriodicalId":292080,"journal":{"name":"2007 IEEE Electric Ship Technologies Symposium","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115184266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development of a Low-EMI Advanced Variable Speed Drive for Shipboard Applications","authors":"E. Limpaecher, M. Holveck, B. J. Ryder","doi":"10.1109/ESTS.2007.372129","DOIUrl":"https://doi.org/10.1109/ESTS.2007.372129","url":null,"abstract":"The U.S. Navy fleet has yet to widely adopt variable speed motor drives (VSDs), despite maturation of commercial inverter technologies. The stringent electric power (MIL-STD-1399) and electromagnetic interference (MIL-STD-461) requirements are a significant obstacle for standard VSDs, which require large and heavy filters to comply with these specifications. A commercial AC-link VSD was modified, tested, and shown to have compliant harmonic levels and conducted EMI levels.","PeriodicalId":292080,"journal":{"name":"2007 IEEE Electric Ship Technologies Symposium","volume":"195 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115649567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}