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2013 IEEE Electric Ship Technologies Symposium (ESTS)最新文献

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Generic modeling and analysis framework for shipboard system design 舰船系统设计通用建模与分析框架
Pub Date : 2013-04-22 DOI: 10.1109/ESTS.2013.6523770
Jian Shi, R. Amgai, S. Abdelwahed, A. Dubey, J. Humphreys, M. Alattar, R. Jia
This paper proposes a novel modeling and simulation environment for ship design based on the principles of Model Integrated Computing (MIC). The proposed approach facilitates the design and analysis of shipboard power systems and similar systems that integrate components from different fields of expertise. The conventional simulation platforms such as Matlab®, Simulink®, PSCAD® and VTB® require the designers to have explicit knowledge of the syntactic and semantic information of the desired domain within the tools. This constraint, however, severely slows down the design and analysis process, and causes cross-domain or cross-platform operations remain error prone and expensive. Our approach focuses on the development of a modeling environment that provides generic support for a variety of application across different domains by capturing modeling concepts, composition principles and operation constraints. For the preliminary demonstration of the modeling concept, in this paper we limit the scope of design to cross-platform implementations of the proposed environment by developing an application model of a simplified shipboard power system and using Matlab engine and VTB solver separately to evaluate the performance with different respects. In the case studies a fault scenario is pre-specified and tested on the system model. The corresponding time domain bus voltage magnitude and angle profiles are generated via invoking external solver, displayed to users and then saved for future analysis.
本文提出了一种基于模型集成计算(MIC)原理的船舶设计建模与仿真环境。所提出的方法有利于船舶动力系统和类似系统的设计和分析,这些系统集成了来自不同专业领域的组件。传统的仿真平台,如Matlab®、Simulink®、PSCAD®和VTB®,要求设计人员对工具中所需域的语法和语义信息有明确的了解。然而,这种限制严重地减慢了设计和分析过程,并导致跨域或跨平台的操作仍然容易出错且代价高昂。我们的方法侧重于建模环境的开发,该环境通过捕获建模概念、组合原则和操作约束,为跨不同领域的各种应用程序提供通用支持。为了对建模概念进行初步论证,本文通过开发一个简化的舰载电源系统应用模型,并分别使用Matlab引擎和VTB求解器从不同方面评估其性能,将设计范围限制在所提出环境的跨平台实现上。在案例研究中,预先指定故障场景并在系统模型上进行测试。通过调用外部求解器生成相应的时域总线电压幅值和角度分布图,并显示给用户,然后保存以供将来分析。
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引用次数: 6
Reliability analysis of a shipboard electrical power distribution system based on breaker-and-a-half topology 基于分断半拓扑的舰船配电系统可靠性分析
Pub Date : 2013-04-22 DOI: 10.1109/ESTS.2013.6523765
B. Stevens, S. Santoso
The frequency and duration of service interruptions to equipment loads in an electric ship due to component failures in several shipboard electrical distribution systems are modeled using Markov simulations. A comparison is made between a distribution system based on ring bus topology and several distribution systems based on breaker-and-a-half topology. Systems based on breaker-and-a-half topology are found to be more reliable overall in terms of equipment availability for a given configuration of loads within the distribution system.
采用马尔可夫仿真方法,对船舶配电系统中由于部件故障导致的电力船舶设备负荷中断的频率和持续时间进行了建模。对基于环形母线拓扑的配电系统与基于断路器半拓扑的几种配电系统进行了比较。基于断路器半拓扑的系统被发现在配电系统中给定负载配置的设备可用性方面总体上更可靠。
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引用次数: 5
System studies for a bi-directional advanced hybrid drive system (AHDS) for application on a future surface combatant 面向未来水面舰艇的双向先进混合动力驱动系统(AHDS)系统研究
Pub Date : 2013-04-22 DOI: 10.1109/ESTS.2013.6523784
J. Langston, M. Andrus, M. Steurer, D. Alexander, J. Buck, G. Robinson, D. Wieczenski
A project is currently underway to develop a bi-directional advanced hybrid drive system (AHDS) for application to a future surface combatant. This system would support propulsion powered through ship service gas turbine generators, as well as ship service power supplied from the mechanical propulsion gas turbines. This paper discusses system studies currently being conducted to assess the requirements and implications of incorporation of two such AHDS units on a future surface combatant.
目前正在进行的一个项目是开发一种双向先进混合动力驱动系统(AHDS),用于未来的水面作战舰艇。该系统将支持通过船舶燃气轮机发电机提供动力的推进,以及由机械推进燃气轮机提供动力的船舶推进。本文讨论了目前正在进行的系统研究,以评估在未来水面作战舰艇上合并两个这样的AHDS单元的要求和影响。
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引用次数: 7
Permanent PD monitoring: The on-board solution to prevent failures for propulsion, distribution and generation systems in marine applications 永久PD监测:防止船舶应用中推进、配电和发电系统故障的船上解决方案
Pub Date : 2013-04-22 DOI: 10.1109/ESTS.2013.6523778
L. Fornasari, A. Cavallini, G. Montanari
The paper will present an advanced technique for increasing reliability of power system apparatus in vessels by means of a permanent Partial Discharge (PD) monitoring with a DataBase application and Smart Alerts logic. Recent failures on cruise vessels have raised expectations on possible diagnostic systems to be applied directly on-board, able to raise alerts in case of major problems. Consequences of an unexpected stop of cruise vessels or warships are incommensurable economic losses due to reimbursements, penalties and unscheduled maintenance. The PD Monitoring system described in this paper has been implemented successfully in several cruise vessels, and case studies are presented.
本文将介绍一种先进的技术,通过数据库应用和智能警报逻辑,通过永久局部放电(PD)监测来提高船舶电力系统设备的可靠性。最近发生在游轮上的故障提高了人们对可能直接应用于船上的诊断系统的期望,该系统能够在发生重大问题时发出警报。邮轮或军舰意外停靠的后果是由于赔偿、罚款和计划外维修造成的不可估量的经济损失。本文所述的PD监测系统已在多艘邮轮上成功实施,并给出了实例分析。
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引用次数: 0
Integrated simulation framework for crash back operation 碰撞回退操作集成仿真框架
Pub Date : 2013-04-22 DOI: 10.1109/ESTS.2013.6523732
P. Prempraneerach, S. Brizzolara, G. Karniadakis, C. Chryssostomidis
We present a comparison of performance of an all-electric-ship (AES) simulator using two different approaches to control the induction machine in forward as well as in cash astern operations. The first approach uses a constant-slip control while the second uses direct-torque control. We also investigate the use of proper breaking resistors required for minimal power dissipation during the crash astern operation. The AES simulator describes a medium voltage DC system (MVDC) for the USS DDG-51 Arleigh Burke-Class destroyer.
我们提出了一个全电动船舶(AES)模拟器的性能比较,使用两种不同的方法来控制感应电机在前进和现金倒车操作。第一种方法使用恒转差控制,第二种方法使用直接转矩控制。我们还研究了在倒车操作过程中使用最小功耗所需的适当断阻电阻。AES模拟器描述了美国DDG-51阿利·伯克级驱逐舰的中压直流系统(MVDC)。
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引用次数: 0
Shipboard IPS technological chanllenges-VFD and grounding 舰载IPS技术挑战——vfd和接地
Pub Date : 2013-04-22 DOI: 10.1109/ESTS.2013.6523733
M. Islam, W. Hinton, M. Mcclelland, K. Logan
The design of Shipboard Integrated Power System (IPS) with variable frequency drives (VFD) are considered challenging due to the random incorporation of various commercial, emerging, and intrusive technologies. The IPS designs are found to be creating system level anomalies such as instability of the electrical system. The instability is due to multiple electrical system noise issues such as; harmonics, transients, arc-flash susceptibility, waves, etc. The type of resistance grounding (RG) system selection for ungrounded power systems may also influence the electrical stability of the power system. These electrical instabilities lead to system level blackout, premature equipment failure, major arc-flash incidents, electrical fire, and unscheduled unpredictable equipment failures, all contributing to a heavy cost burden when operating the ship.
由于各种商业技术、新兴技术和侵入性技术的随机结合,带有变频驱动器(VFD)的船用集成电源系统(IPS)的设计被认为具有挑战性。发现IPS设计会造成系统级异常,例如电气系统的不稳定。不稳定是由于多种电气系统噪声问题,如;谐波、瞬态、电弧闪敏、波等。不接地电力系统的电阻接地(RG)类型选择也会影响电力系统的电气稳定性。这些电气不稳定性导致系统级停电、设备过早故障、重大电弧闪光事件、电气火灾和计划外不可预测的设备故障,所有这些都会导致船舶运营时的沉重成本负担。
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引用次数: 4
On-line monitoring of mechanical unbalance/ misalignment troubles in ship alternators by direct measurement of split-phase currents 直接测量分相电流在线监测船舶交流发电机机械不平衡/不对中故障
Pub Date : 2013-04-22 DOI: 10.1109/ESTS.2013.6523764
C. Bruzzese, T. Mazzuca, M. Torre
Synchronous generators (SGs) are vital ganglia of the ship. SGs supply survival/defense/attack systems, propulsion, etc., so deserving on-line monitoring. Rotor unbalances shorten bearing lifetime, with overheating and stator-rotor rubs. No technique is definitely established for on-line evaluation of rotor eccentricities (REs) in working SGs. Actual manual air gap checks are time-consuming, and require unit shut-down and dismounting. This paper shows a method based on measurement of split-phase currents in stator windings with parallel branches. A symmetrical component transformation reverts the split-phase currents in rotating space vectors. The (p±1)-order vectors provide an affordable estimation of REs in 2p-pole machines. Rogowski coils or current transformers can be installed in the terminal box, or on winding front-ends, for current measurement. A LabView virtual instrument (VI) was developed for method application. This paper also describes some tests carried out on board an Italian Navy's ship for on-line monitoring of shaft misalignments in a loaded 2MVA SG. Loads on board ships are usually unbalanced and may change suddenly. However, it is shown that the load-related unbalance can be separated from the eccentricity-related unbalance in the split-phase currents. Good assessment of air gap percentage reduction in the tested 2MVA machine was finally obtained.
同步发电机是舰船的重要神经节。SGs提供生存/防御/攻击系统,推进系统等,因此值得在线监测。转子不平衡缩短轴承寿命,过热和定子转子摩擦。目前还没有确定的方法来在线评估工作状态下的转子偏心。实际的手动气隙检查非常耗时,并且需要关闭机组并拆卸。本文介绍了一种基于并联支路的定子绕组分相电流测量方法。对称分量变换使旋转空间矢量中的分相电流恢复。(p±1)阶向量提供了对2极机REs的可负担估计。Rogowski线圈或电流互感器可安装在接线盒或绕组前端,用于电流测量。为实现该方法的应用,开发了LabView虚拟仪器(VI)。本文还介绍了在一艘意大利海军舰艇上进行的用于在线监测装载2MVA SG轴位失调的一些试验。船上的负载通常是不平衡的,可能会突然变化。结果表明,在分相电流中,负载不平衡与偏心不平衡是可以分离的。最后对所测试的2MVA电机的气隙减小率进行了较好的评价。
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引用次数: 4
Fault-Aware-Soft-Restart method for shipboard MVAC power system using inverter coupled energy storage system 基于逆变器耦合储能系统的船舶MVAC电源系统故障感知软重启方法
Pub Date : 2013-04-22 DOI: 10.1109/ESTS.2013.6523729
A. Anwar, Huaxi Zheng, R. Dougal, Yucheng Zhang
We show that an inverter coupled energy storage system can be used to provide a soft-restart for the zonal loads by first operating in a “protected ride-through” mode, then pre-energizing the loads, and finally transfer the loads bumplessly to the main generator. This method decreases by over 50% the inrush currents associated with restarting the loads. The inverter is controlled to achieve a voltage and phase matched condition with the main generator before the load transfer takes place so as to minimize voltage or current oscillations associated with reclosure. This process, termed as “Fault-Aware-Soft-Restarting” can eliminate the problems of 1) Unwanted fault-feeding 2) Motor starting inrush currents that causes voltage dips and motor stalling in nearby load zones and, 3) Breaker reclosing transients that may damage line equipment or cause secondary trips.
我们证明了逆变器耦合储能系统可以通过首先以“保护穿越”模式运行,然后预通电负载,最后将负载无碰撞地转移到主发电机,从而为分区负载提供软重启。这种方法减少了50%以上与重新启动负载相关的涌流。在负载转移发生之前,控制逆变器以实现与主发电机的电压和相位匹配条件,以便最小化与重合闸相关的电压或电流振荡。这个过程被称为“故障感知-软重启”,可以消除以下问题:1)不必要的故障馈电;2)电机启动涌流导致电压下降和电机在附近负载区失速;3)断路器重合闸瞬态可能损坏线路设备或导致二次跳闸。
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引用次数: 4
Effects of communication network and load parameters on information-embedded multi-converter shipboard power systems 通信网络和负载参数对信息嵌入式多变换器舰载电力系统的影响
Pub Date : 2013-04-22 DOI: 10.1109/ESTS.2013.6523754
J. C. Jiménez, S. Jayasuriya, C. Nwankpa
Information-embedded multi-converter shipboard power systems are comprised of multiple independently operated converters that work together with electromechanical equipment. Their relations can produce a large variety of dynamic and static interactions that can lead to irregular behavior of a converter, a group of converters or the whole system. This inherent cross-regulation behavior may correspond to controller limit violations, which results in harmful operational situations during system disturbances. It is significant then to monitor the system during perturbations; their underlying dynamics exhibit trajectories that not only depend on their independent operation modes. Appropriate modeling is a key issue to power system analysis and warrants primary investigation. This paper addresses aspects of modeling and simulation of multi-converter based shipboard power systems with the inclusion of power electronic equipment dynamics and network control in the overall system model. The model behavior is evaluated with respect to changes in loading conditions and control parameters (local and network) and validated through simulation of a nonlinear observability formulation of the developed system model.
信息嵌入式多变换器舰船电力系统由多个独立运行的变换器与机电设备协同工作组成。它们的关系可以产生各种各样的动态和静态相互作用,从而导致一个转换器、一组转换器或整个系统的不规则行为。这种固有的交叉调节行为可能与控制器限制违反相对应,从而在系统干扰期间导致有害的操作情况。因此,在扰动过程中监测系统是很有意义的;它们的潜在动力学表现出的轨迹不仅取决于它们独立的运行模式。适当的建模是电力系统分析的关键问题,值得深入研究。本文研究了基于多变换器的舰船电力系统的建模与仿真问题,并在整个系统模型中纳入了电力电子设备动力学和网络控制。根据负载条件和控制参数(局部和网络)的变化对模型行为进行了评估,并通过模拟所开发系统模型的非线性可观测性公式进行了验证。
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引用次数: 2
The impact of power quality when high power pulsed DC and continuous AC loads are simultaneously operated on a MicroGrid testbed 微电网试验台上大功率脉冲直流和连续交流负载同时运行对电能质量的影响
Pub Date : 2013-04-22 DOI: 10.1109/ESTS.2013.6523704
J. Kelley, D. Wetz, J. Reed, I. Cohen, G. Turner, W. Lee
Technological advancements have been made in the field of electrochemistry leading to the development of energy storage devices that are more power dense than ever before. Coupled with their already modestly high energy density, this makes them well suited for use as the prime power source of many high pulsed and continuous power AC and DC loads operated within MicroGrid architectures. The energy storage devices of interest as well as the MicroGrid concept are both technologically immature. Their independent performance characteristics as well as the manner in which they can be integrated with one another need further research in order to understand their limitations and how they will perform in an extreme environment where high pulsed and continuous power loads are sourced simultaneously. With support from the US Office of Naval Research (ONR), a novel MicroGrid test-bed at UTA is being used to characterize how the power quality of different generation sources, including various low impedance energy storage technologies, solar panels, wind turbines, fuel cells, and fossil fuel based generators, are impacted when they are interconnected and used to source these types of high power loads. A description of the experimental setup and some experimental results obtained will be presented.
电化学领域的技术进步导致了能量存储设备的发展,这些设备的功率密度比以往任何时候都要高。再加上它们已经适度的高能量密度,这使得它们非常适合用作微电网架构内运行的许多高脉冲和连续功率交流和直流负载的主要电源。我们感兴趣的储能设备和微电网概念在技术上都不成熟。它们的独立性能特征以及它们可以相互集成的方式需要进一步研究,以了解它们的局限性,以及它们在高脉冲和连续功率负载同时来源的极端环境中的表现。在美国海军研究办公室(ONR)的支持下,UTA正在使用一个新型微电网试验台来表征不同发电源的电能质量,包括各种低阻抗储能技术、太阳能电池板、风力涡轮机、燃料电池和化石燃料发电机,当它们相互连接并用于提供这些类型的高功率负载时,它们是如何受到影响的。本文将介绍实验装置和一些实验结果。
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引用次数: 12
期刊
2013 IEEE Electric Ship Technologies Symposium (ESTS)
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