Proceedings of Intelec 94最新文献

Dynamic analysis of parallel-module converter system with current balance controllers 带电流平衡控制器的并联模块变换器系统动态分析

Proceedings of Intelec 94 Pub Date : 1994-12-01 DOI: 10.1109/INTLEC.1994.396656

T. Kohama, T. Ninomiya, M. Shoyama, F. Ihara

引用次数: 43

Standardizing energy management by using simple network management protocol 采用简单的网络管理协议实现能源管理标准化

Proceedings of Intelec 94 Pub Date : 1994-10-30 DOI: 10.1109/INTLEC.1994.396599

L. Almqvist, R. Wikstrom

引用次数: 7

Small size and low weight DC/DC converter with no magnetic elements 体积小，重量轻，无磁性元件的DC/DC变换器

Proceedings of Intelec 94 Pub Date : 1994-10-30 DOI: 10.1109/INTLEC.1994.396594

O. Mak, A. Ioinovici

引用次数: 8

Effects of switch mode power supply harmonic currents on building power systems and stand-by engine alternators 开关供电谐波电流对建筑电力系统和备用发动机交流发电机的影响

Proceedings of Intelec 94 Pub Date : 1994-10-30 DOI: 10.1109/INTLEC.1994.396580

R. Plow

引用次数: 3

Development of a valve-regulated lead acid battery that decrease float current to prevent thermal runaway 阀控铅酸蓄电池的研制，降低浮载电流，防止热失控

Proceedings of Intelec 94 Pub Date : 1994-10-30 DOI: 10.1109/INTLEC.1994.396669

S. Torigoe, K. Matsumoto, K. Maki, T. Tanaka, T. Babasaki

引用次数: 3

Considerations for a reliable telecommunication power system at remote facilities utilizing valve regulated lead-acid battery management system technologies 采用阀控铅酸电池管理系统技术的远程设施中可靠的电信电力系统的考虑

Proceedings of Intelec 94 Pub Date : 1994-10-30 DOI: 10.1109/INTLEC.1994.396628

F.J. Suiter, T. M. Cortes

引用次数: 4

A total battery monitoring program for the telecommunications industry 电信行业的总电池监测程序

Proceedings of Intelec 94 Pub Date : 1994-10-30 DOI: 10.1109/INTLEC.1994.396626

D.R. Modisette

{"title":"A total battery monitoring program for the telecommunications industry","authors":"D.R. Modisette","doi":"10.1109/INTLEC.1994.396626","DOIUrl":"https://doi.org/10.1109/INTLEC.1994.396626","url":null,"abstract":"Considerable information has been provided on valve-regulated Pb-acid (VRLA) batteries concerning battery and ambient temperatures, float voltage for cells and strings, float current, and battery capacity. Often these characteristics have been considered separately or in incomplete sets. Telecommunications personnel using the Pb-acid battery in the field do not have a comprehensive, single source for reference. A source is needed that provides guidelines for selecting the various points of operation with a brief explanation for each. This paper meets this need by describing a program for total battery monitoring, management, record keeping, and maintenance. Monitored characteristics and selected ranges are justified by reference to published information. This program utilizes existing information to provide optimal battery life, battery capacity, remaining operating time both at present load and at maximum load, energy efficiency, and warranty records with less personnel. This program also locates deficient cells or blocks and provides records to indicate conditions that lead to the failure and to provide support of a warrantee claim. A reduction in personnel is possible, since sites only require attention when a problem is indicated and the proper equipment to correct the problem can be obtained before the site visit.<<ETX>>","PeriodicalId":123164,"journal":{"name":"Proceedings of Intelec 94","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121422218","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: 0

Asynchronized synchronous machines in self-contained power systems 自给式电力系统中的异步同步电机

Proceedings of Intelec 94 Pub Date : 1994-10-30 DOI: 10.1109/INTLEC.1994.396582

A. Hayrapetian, G. A. Poghpatian

{"title":"Asynchronized synchronous machines in self-contained power systems","authors":"A. Hayrapetian, G. A. Poghpatian","doi":"10.1109/INTLEC.1994.396582","DOIUrl":"https://doi.org/10.1109/INTLEC.1994.396582","url":null,"abstract":"The increasing role of self-contained power generation and the steady rise of its share in total balance of produced electric power necessitate development and improvement of highly efficient systems of electric power supply and its quality and reliability. In this connection asynchronized synchronous machines (ASM) have high prospects for use instead of traditional synchronous machines in diesel-generator sets (DGS), motor-generators, \"variable speed-constant frequency\" systems, and particularly in wind power plants. The paper describes structural-and-design specific features of ASM: incorporated in DGS, which allow improvement to some technical-and-economic indices related to fuel and oil consumption, increase of DGS service life and improvement of transient performance. A general block diagram of asynchronized synchronous machine operating in generator mode (ASG) is given, as well as the basic requirements to ASG excitation system are determined and static frequency converters included in excitation circuits are compared and briefly analyzed. A number of periodical nonsinusoidal curve shape quality indices are discussed in parallel with the analysis of methods for improvement of ASG building structure with an artificially-commutated direct frequency converter as well as new unique structural-and-technical solutions possessing broadened functional capacities and improved voltage curve shapes are given. ASG output voltage curve and its sine-distortion and harmonic rejection factors are described mathematically.<<ETX>>","PeriodicalId":123164,"journal":{"name":"Proceedings of Intelec 94","volume":"24 11","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113963631","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: 2

Precise power plant reduces battery size and harmonic feedback at telecommunication sites 精确的发电厂减少了电信站点的电池尺寸和谐波反馈

Proceedings of Intelec 94 Pub Date : 1994-10-30 DOI: 10.1109/INTLEC.1994.396579

R. Morash, J. Roesel, R.J. Barber

{"title":"Precise power plant reduces battery size and harmonic feedback at telecommunication sites","authors":"R. Morash, J. Roesel, R.J. Barber","doi":"10.1109/INTLEC.1994.396579","DOIUrl":"https://doi.org/10.1109/INTLEC.1994.396579","url":null,"abstract":"\"Written-Pole\" technology has been patented and developed for electric motors and generators that advances the state-of-the-art for electrical energy storage systems. Very effective and efficient use is made of the inherent flywheel energy stored in the rotor of a unique motor-generator set. The machine is not only the ultimate on-line power conditioner, but is also an electro-mechanical battery that delivers useful precise frequency AC power and DC power for extended time during utility power sags, surges and blinkouts. Then when power interruptions extend into blackouts (after 15 or more seconds), the precise power plant engages, and using flywheel energy, starts an integral gas or diesel engine, or it may alternatively tie into the station's existing engine generator for a no-break transfer. The written-pole motor is synchronous and reflects a unity power factor, sine wave load to the utility, while the generator mitigates all the harmonic loads imposed by the switching power supplies and other devices in the telecommunication site. This paper discusses the written-pole technology, shows an operational design with specification and test results, applications in telecommunication sites, as well as other commercial and industrial areas.<<ETX>>","PeriodicalId":123164,"journal":{"name":"Proceedings of Intelec 94","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126405848","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: 2

Impedance testing-is it a substitute for capacity tests? 阻抗测试——它是容量测试的替代品吗?

Proceedings of Intelec 94 Pub Date : 1994-10-30 DOI: 10.1109/INTLEC.1994.396648

G. Albér, M. W. Migliaro

{"title":"Impedance testing-is it a substitute for capacity tests?","authors":"G. Albér, M. W. Migliaro","doi":"10.1109/INTLEC.1994.396648","DOIUrl":"https://doi.org/10.1109/INTLEC.1994.396648","url":null,"abstract":"Capacity tests are used to reliably determine lead acid battery capacity. The results of the capacity tests are then used to evaluate whether the battery can continue in service or needs to be replaced. Unfortunately, many batteries do not receive regular capacity tests. This occurs because of perceptions that: the test is difficult to perform; takes too much time; the battery is too important to be removed from service for a test; is too costly, and so forth. Few consider the consequences of a failure that causes the loss of a facility where down time lost revenue is measured in millions of $US per day or even millions of $US per minute. The measurement of battery impedance (or conductance, or internal resistance) has come into vogue. At this point in time, many in the industry have agreed that these tests are useful in detecting problem cells. However efforts are also underway to convince battery users that these tests can replace capacity tests. This paper reviews the internal battery impedance components and shows that internal resistance rather than impedance is the parameter that is important to measure. It also discusses the change in battery impedance as the cell ages. The paper describes how the measurements are made and provides an analysis of the impedance measurements. This analysis includes a discussion of published results of impedance testing to date. Finally, a comparison is made between capacity and impedance tests.<<ETX>>","PeriodicalId":123164,"journal":{"name":"Proceedings of Intelec 94","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125742765","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: 20