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THE 400HZ. MOTOR—GENERATOR power systems IMPROVEMENT program

Naval Engineers Journal 1977年第6期89卷 75-80页

作者： NICKLEY, ALFRED P. The author received his BS degree in Electrical Engineering from Case Institute of Technology in 1953. Following graduation he began his career in industry as a Motor Design Engineer. In 1959 he accepted the position of Electrical Engineer in the Motor and Motor—Generator Section of the Bureau of Ships where he was the Engineer-in-Charge of all Navy motors. From 1967 until 1972 he served as the Electrical Engineer for the Supervisor of Shipbuilding Bath England. In this position he provided technical guidance in all electrical matters to United Kingdom shipbuilders during the design construction and testing of two Oceanographics Ships and three OceanGoing Salvage Tugs being built in the United Kingdom to U.S. Navy specifications. After completion of this tour of duty he joined the Naval Ship Engineering Center (NAVSEC) where he is currently a Project Engineer with technical cognizance for all surface ship 400Hz motor—generators and for the past four years has served as the NA VSEC Program Manager for the 400Hz Motor—Generator Power Systems Improvement Program in addition to his regular duties.

The success or failnre of any equipment improvement program most be measured in terms of the ultimate benefits derived by the Fleet and whether the resultant benefits were worth the time, effort, and funds expended. In consideration of this criteria, the NAVSEC 400Hz Motor—Generator power systems Improvement program most be deemed a success. Developed in mid–1971 to combat the numerous casualties and excessive downtimes occurring in U.S. Navy surface ships and by concentrating efforts over a four and one—half year period in five major areas related to the problem, the paper discusses how NAVSEC has increased effectively the “on—line” availability of the 400Hz motor—generator power systems. © 1977 by the American Society of Naval Engineers, Inc.

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MBSE Approach to Early Naval Ship Design Exploration with power Electronic power Distribution System in power and Energy Corridors

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IEEE Transactions on Transportation Electrification 2025年

作者： Cuzner, Robert Chalfant, Julie Gross, David Shabani, Hamed Ali, Naqash Steurer, Mischa University of Wisconsin-Milwaukee Department of Electrical Engineering MilwaukeeWI53211 United States Design Laboratory of the MIT Sea Grant College Program Massachusetts Institute of Technology CambridgeMA02139 United States Florida State University Center for Advanced Power Systems TallahasseeFL32310 United States

The concept development of any system includes the definition of various parameters of interest and determination of the threshold (satisfactory) and goal (desired) value for each. These are classically organized into Measures of Effectiveness, Measures of Performance (MOPs), & Technical Performance Measures (TPMs). These form the basis of performance requirements, the means for evaluating design, and the measure by which systems are validated. A cross-cutting sub-set of MOPs and TPMs, Key Performance Parameters (KPPs) can define the trade space within which to optimize the emerging solution. Applying this systematic approach is substantially complicated when the system of interest aims for unprecedented capabilities from emerging technologies, which is the situation for electric ship research. This paper presents an Integration Framework that effectively maps out a process leading to defined parameter objectives, which is being developed and used in the U.S. Department of Navy sponsored power Electronic power Distribution System (PEPDS) research initiative. The method then integrates the Model-Based systems Engineering (MBSE) system model with genetic algorithm trade space exploration tools. © 2025 IEEE. All rights reserved.

关键词： Warships

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Transforming maritime patrol and reconnaissance

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JOHNS HOPKINS APL TECHNICAL DIGEST 2003年第3期24卷 276-283页

作者： Osborne, SR Prindle, BC Power Projection Systems Department’s Aviation Systems Group the Joint Strike Fighter Program Office

Although we cannot predict future security conditions, we can be certain that the environment will be marked by the unexpected. However, the kinds and scope of the conflicts we will face, the requirements for naval forces, and other unknowns will surely entail the deterrence and defeat of asymmetric threats. The Navy's Maritime Patrol and Reconnaissance (MPR) forces must be postured to sustain and advance a broad, competitive advantage over emerging 21st century threats, and the MPR community must enhance core mission capabilities with intelligence, reconnaissance, and surveillance capabilities that in turn support the Navy's transformation roadmap, Sea power 21. MPR force transformation will be realized through co-evolving concepts of operation, changes in organizational structure, and innovative applications of legacy capabilities and newly developed technologies associated with Multi-mission Maritime Aircraft (MMA), unmanned aerial vehicle (UAVs), and high-fidelity trainers. MMA, teamed with robust and mature UAV capabilities, could be the basis for a radical change in the conduct of maritime warfare.

关键词： .conduct threats high delity UAVs SUW Transforming trainers naval forces MPR community Sea power MPR force operational concepts

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LISTING OF EPRI GEOTHERMAL power systems RESEARCH & DEVELOPMENT PROJECTS.

LISTING OF EPRI GEOTHERMAL POWER SYSTEMS RESEARCH & DEVELOPM...

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Proceedings - Eighth Annual Geothermal Conference and Workshop.

作者： Anon EPRI Advanced Power Systems Div Geothermal Power Systems Program USA EPRI Advanced Power Systems Div Geothermal Power Systems Program USA

This paper lists 27 different projects, both completed and underway, on geothermal power systems. These projects include geothermal exploration methods, control of scaling in geothermal systems, geothermal brine chemistry analysis, waste heat rejection, hydrocarbon expander turbines rotary phase separator turbines, binary-cycle demonstration plants, direct-flash demonstration plants, removal of hydrogen sulfide from geothermal systems, wellhead conversion systems, and geothermal downwell pump reliability.

关键词： GEOTHERMAL ENERGY

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A PERSONAL-COMPUTER SOFTWARE PACKAGE FOR power ENGINEERING-EDUCATION

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IEEE TRANSACTIONS ON power systems 1988年第4期3卷 1864-1871页

作者： GLOVER, JD Power Systems Program Department of Electrical and Computer Engineering Northeastern University Boston MA USA

The author describes a personal-computer software package recently incorporated in the power engineering program at Northeastern University. The package includes a set of computer programs which can be utilized to support classroom instruction and student design projects. The programs cover matrix operations, symmetrical components, line constant, steady-state operation of transmission lines, power flow (100 buses), symmetrical short circuits (100 buses), short circuits (100 buses), transmission-line transients, and transient stability. The computer programs, the way they are utilized, and initial student reaction are discussed. It is concluded that the availability of the power system analysis and design software package has extended classroom capabilities and enhanced student interest in power engineering courses. The reaction of students to the software has been positive, and it has allowed them to work on more difficult and realistic problems and make it an innovative tool in the learning process.< >

关键词： Microcomputers Software packages power engineering power system transients power engineering computing Transmission line matrix methods Circuits power system stability power system analysis computing Packaging

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Real-time performance metrics for generators providing the regulation ancillary service

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Electricity Journal 2001年第3期14卷 48-55页

作者： Kirby, Brendan Hirst, Eric Oak Ridge National Laboratory Power Systems Research Program United States

Analysis indicates that generation regulation output contributes in only a minor and ambiguous way to meeting reliability performance standards, but load-following output is essential to maintain compliance. © 20... 详细信息

关键词： Regulatory compliance

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Methodology for optimizing electrical grounding grids in stratified soils using advanced calculation techniques and evolutionary algorithms

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Swarm and Evolutionary Computation 2025年 95卷

作者： Silva, Carlos Leandro Borges da Pires, Thyago Gumeratto Silva Filho, Antonio Marcelino Bulhões, Junio Santos Belo, Orlando M. Oliveira Rodrigues, Clóves Gonçalves Coimbra, Antonio Paulo Calixto, Wesley Pacheco Electrical Mechanical & Computer Engineering School Federal University of Goias Goiania Goias PC 74.605-220 Brazil Institute of Systems and Robotics Coimbra University CoimbraPC 3030-290 Portugal Department of Informatics School of Engineering University of Minho BragaPC 4710-057 Portugal Electrical Power Systems Study Group Federal Institute of Tocantins Palmas TocantinsPC 77.021-090 Brazil Graduate Program in Production and Systems Engineering Pontifical Catholic University of Goias Goiania Goias PC 74605-010 Brazil Mato Grosso Brazil Technology Research and Development Center Federal Institute of Goias Goiania Goias PC 74.055-110 Brazil

This paper presents a practical methodology for optimizing the geometry of electrical grounding grids at industrial frequencies of 50Hz and 60Hz, integrating advanced calculation techniques and evolutionary algorithms to improve the safety and operational performance of electrical grounding systems. The proposed approach is particularly beneficial for industrial automation and control systems, where effective grounding is necessary to maintain system reliability and prevent downtime. This methodology employs mathematical modeling and computational tools to optimize grid parameters, ensuring compliance with safety standards while reducing operational costs, thus contributing to the overall efficiency of automated systems in industrial environments. The study reports a reduction of up to 66% in the number of vertical rods and 40% in horizontal conductors compared to traditional methods. These results indicate that the proposed methodology can significantly reduce material usage and costs while maintaining electrical safety in accordance with regulatory standards, making it applicable to a wide range of industrial settings, including substations and automated facilities. © 2025 The Authors

关键词： Electric grounding

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FROM SNAP 3 TO IMP - EVOLUTION OF SPACE ISOTOPIC power

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IEEE TRANSACTIONS ON AEROSPACE 1964年第2期AS 2卷 642-&页

作者： MORSE, JG FINK, CR Director Small Power Systems Department Nuclear Division Martin Company USA Program Manager SNAP 9A and IMP Small Power Systems Department Nuclear Division Martin Company USA

By today's standards, the radioisotope-fueled thermoelectric generators launched in 1961 were both crude and heavy. Yet much of SNAP 3, as those units were designated, lives on in their progeny. This paper discusses SNAPs 3, 9A, 11 and the IMP (Interplanetary Monitoring Probe) generators, emphasizing the unique and developmental features of each, as well as those time-tested, operationally successful features which have remained unchanged after close official scrutiny.

关键词： power generation Thermoelectricity Nuclear power generation Fuels power system management power system reliability Radio transmitters power systems Monitoring Voltage

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PROPANE powerED ENGINE FOR LONG DURATION UNMANNED IRCRAFT.

PROPANE POWERED ENGINE FOR LONG DURATION UNMANNED IRCRAFT.

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AIAA/SAE/ASME 20th Joint Propulsion Conference.

作者： Boretz, J.E. TRW Nuclear-Chemical Dynamic Power Systems Program Redondo Beach CA USA TRW Nuclear-Chemical Dynamic Power Systems Program Redondo Beach CA USA

During the past several years, considerable interest has been shown by DoD agencies in the development of long duration, unmanned aircraft. Many tactical missions have been identified that involve surveillance, reconnaissance, missile detection, missile targeting, and electronic countermeasures. Requirements for these missions vary depending upon the payload characteristics, flight duration, and altitude. While both lighter-than-air and fixed-wing configurations have been considered, this paper only addresses the latter type. Mission duration varied from several days to 4 years. Altitudes ranged from 47,500 to 110,000 feet. Aircraft operated in a recoverable mode, but some refurbishment was required after each flight. Six candidate propulsion systems are considered in this paper.

关键词： AIRCRAFT ENGINES

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Modelling methodology for autotransformer rail traction power system based on symmetrical components: Models of system components and fault study examples

Modelling methodology for autotransformer rail traction powe...

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7th Asia International Conference on Mathematical Modelling and Computer Simulation, AMS 2013

作者： Cella, Umberto Power Systems Electrical Program Aurizon Brisbane QLD 4000 Australia

ISBN: (纸本)9780769551012

This paper presents a modelling methodology intended to enable easier and quicker circuital calculations for autotransformer rail traction power systems. The 2 x 25 kV configuration is considered. The classic formulation of the symmetrical components for 3-phase systems is referred to, and transposed in a 2-phase case. The items of plant that compose the power system are modelled as positive- and zero-sequence devices, and the system voltages and currents are transformed as well. Calculation examples are provided for fault currents and fault impedance for system protection purposes. Due to the considerable simplification of the circuital models, the methodology presented enables the designer to perform approximate hand calculations as well as computer-based ones. © 2013 IEEE.

关键词： Electric traction

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