2013 IEEE Electric Ship Technologies Symposium (ESTS)最新文献_第6页

Shipboard electrical system modeling for early-stage design space exploration 面向早期设计空间探索的舰载电气系统建模

2013 IEEE Electric Ship Technologies Symposium (ESTS) Pub Date : 2013-04-22 DOI: 10.1109/ESTS.2013.6523723

A. Cramer, Hanling Chen, E. Zivi

引用次数: 11

Variable speed operation of turbogenerators to improve part-load efficiency 汽轮发电机变速运行，提高部分负荷效率

2013 IEEE Electric Ship Technologies Symposium (ESTS) Pub Date : 2013-04-22 DOI: 10.1109/ESTS.2013.6523760

Dan Li, R. Dougal, E. Thirunavukarasu, A. Ouroua

{"title":"Variable speed operation of turbogenerators to improve part-load efficiency","authors":"Dan Li, R. Dougal, E. Thirunavukarasu, A. Ouroua","doi":"10.1109/ESTS.2013.6523760","DOIUrl":"https://doi.org/10.1109/ESTS.2013.6523760","url":null,"abstract":"Our investigation of variable speed operation of turbogenerators, including both single-shaft and twin-shaft variants, shows significant opportunities to improve part-load efficiency in those certain electrical power generation applications that permit variable speed operation. Efficiency improvement increases as load decreases and the improvement is larger for single-shaft engines than for twin-shaft engines. For example, when operating at 20% loading, adjusting the engine speed can improve fuel efficiency by 14% for single-shaft gas turbines, and by 2% for twin-shaft gas turbines. In addition, we present a semi-theoretical analysis that provides a procedure to obtain the gas turbine optimal efficiency and its corresponding optimal speed as a function of shaft load. Simulation results of part-load variable speed modeling of gas turbines further confirmed the theoretical analysis. This has important practical implications. An analysis of fuel consumption by a gas turbine that operates with a load profile representative of a typical propulsion profile for a DDG51 ship, shows a 15% reduction in fuel consumption when variable speed operation is used, as compared to fixed speed operation. In addition, the analysis presented in this paper provides a general method to evaluate the steady-state performance of gas turbines operating with variable speed.","PeriodicalId":119318,"journal":{"name":"2013 IEEE Electric Ship Technologies Symposium (ESTS)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128928978","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}

引用次数: 14

Mechanical power-hardware-in-the-loop: Emulation of an aeroderivative twin-shaft turbine engine 机械动力-硬件在环:航空衍生双轴涡轮发动机的仿真

2013 IEEE Electric Ship Technologies Symposium (ESTS) Pub Date : 2013-04-22 DOI: 10.1109/ESTS.2013.6523777

B. A. Correa, Yucheng Zhang, R. Dougal, T. Chiocchio, K. Schoder

{"title":"Mechanical power-hardware-in-the-loop: Emulation of an aeroderivative twin-shaft turbine engine","authors":"B. A. Correa, Yucheng Zhang, R. Dougal, T. Chiocchio, K. Schoder","doi":"10.1109/ESTS.2013.6523777","DOIUrl":"https://doi.org/10.1109/ESTS.2013.6523777","url":null,"abstract":"This paper presents a method for driving an AC electric motor so that it emulates, at its drive shaft, the steady-state and transient loading and unloading dynamics of an aeroderivative twin-shaft gas turbine engine. This approach allows safe and robust testing of connected equipment, for example an electric generator, without having to install (or risk damage to) an actual gas turbine engine and all of its support systems. The lower inertia constant of an aeroderivative twin-shaft gas turbine relative to a comparably powerful AC motor introduces power, accuracy, and stability limitations in the emulation system. We have studied the performance of the emulation method at reduced scale using two identical 15 kW induction machines on a common shaft in which one machine acts as gas turbine emulation motor and the other one as a generator under test. The speed controller of the vector controlled emulation motor tracks the speed of a real time reference model of an aeroderivative twin-shaft gas turbine engine. Experimental results demonstrate the power and stability limitations that apply to the emulation system.","PeriodicalId":119318,"journal":{"name":"2013 IEEE Electric Ship Technologies Symposium (ESTS)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115204498","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}

引用次数: 12

Multi-megawatt drive with intercell transformers 带有电池间变压器的多兆瓦级驱动器

2013 IEEE Electric Ship Technologies Symposium (ESTS) Pub Date : 2013-04-22 DOI: 10.1109/ESTS.2013.6523737

S. Dawande, K. Lentijo

引用次数: 3

Multicore methods to accelerate ship power system simulations 加速船舶动力系统仿真的多核方法

2013 IEEE Electric Ship Technologies Symposium (ESTS) Pub Date : 2013-04-22 DOI: 10.1109/ESTS.2013.6523725

F. Uriarte, C. Dufour

引用次数: 8

Role of hardware-in-the-loop simulation testing in transitioning new technology to the ship 硬件在环仿真测试在将新技术应用于舰船中的作用

2013 IEEE Electric Ship Technologies Symposium (ESTS) Pub Date : 2013-04-22 DOI: 10.1109/ESTS.2013.6523785

J. Langston, M. Sloderbeck, M. Steurer, D. Dalessandro, T. Fikse

引用次数: 19

Modular IPS machinery arrangement in early-stage naval ship design 舰艇早期设计中模块化IPS机械布置

2013 IEEE Electric Ship Technologies Symposium (ESTS) Pub Date : 2013-04-22 DOI: 10.1109/ESTS.2013.6523722

D. Jurkiewicz, J. Chalfant, C. Chryssostomidis

{"title":"Modular IPS machinery arrangement in early-stage naval ship design","authors":"D. Jurkiewicz, J. Chalfant, C. Chryssostomidis","doi":"10.1109/ESTS.2013.6523722","DOIUrl":"https://doi.org/10.1109/ESTS.2013.6523722","url":null,"abstract":"Electrical power demands for naval surface combatants are projected to rise with the development of increasingly complex and power intensive combat systems. This trend coincides with the need to achieve maximum fuel efficiency at both high and low hull speeds. A proposed solution to meet current and future energy needs of conventionally powered naval surface combatants is through the use of an Integrated Power System (IPS), which is seen as the next evolution in naval ship design. In an effort to enhance the relationship between new-concept designs and historically-based ship design processes, this paper focuses on a novel approach of incorporating IPS at the earliest stage of the design process as part of assessing system-level tradeoffs early within the ship design process. This paper describes a methodology for the systematic design and arrangement of an IPS machinery plant to meet a desired power generation level. In conjunction with the methodology development, a hierarchical process and design tool were produced to assist in rapid development and evaluation of various IPS arrangements. The result of this process, through several case studies, provides insight into equipment selection philosophy, the initial sizing of the ship's machinery box, and the initial definition of electrical zones.","PeriodicalId":119318,"journal":{"name":"2013 IEEE Electric Ship Technologies Symposium (ESTS)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123776977","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}

引用次数: 7

Modeling and simulation of shipboard nonlinear dynamic loads using Volterra kernels 舰船非线性动载荷的Volterra核建模与仿真

2013 IEEE Electric Ship Technologies Symposium (ESTS) Pub Date : 2013-04-22 DOI: 10.1109/ESTS.2013.6523742

J. Leonard, C. Edrington

引用次数: 1

A novel fault-tolerant high-thrust inverter-controlled permanent magnet linear actuator as a direct-drive for shipboard loads 一种新型的舰船负载直接驱动容错大推力逆变控制永磁直线执行器

2013 IEEE Electric Ship Technologies Symposium (ESTS) Pub Date : 2013-04-22 DOI: 10.1109/ESTS.2013.6523776

A. Tessarolo, C. Bruzzese, T. Mazzuca, G. Scala

引用次数: 8

Short-circuit protection issues in DC ship grids 船舶直流电网中的短路保护问题

2013 IEEE Electric Ship Technologies Symposium (ESTS) Pub Date : 2013-04-22 DOI: 10.1109/ESTS.2013.6523779

V. Staudt, R. Bartelt, C. Heising

引用次数: 16