发布求助
文献互助 智能选刊 最新文献

[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91最新文献

筛选
英文 中文
Benefits of implementation of computerized supervision equipment (DRO) for Jutland telephone's power section 日德兰电话局电力段实施计算机化监控设备(DRO)的效益
[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91 Pub Date : 1991-11-05 DOI: 10.1109/INTLEC.1991.172446
B. Mortensen, V. Balle
{"title":"Benefits of implementation of computerized supervision equipment (DRO) for Jutland telephone's power section","authors":"B. Mortensen, V. Balle","doi":"10.1109/INTLEC.1991.172446","DOIUrl":"https://doi.org/10.1109/INTLEC.1991.172446","url":null,"abstract":"The authors describe the design philosophy and system concept for the computerized supervision equipment (DRO) and the benefits as to operation and economy expected from the implementation of the DRO system at Jutland Telephone, Denmark. The DRO is one of the elements in a superior integrated operation and maintenance communications system for exchanges, transmission, power and cooling plants, cables, etc. at Jutland Telephone. One basic philosophy was that the primary function of the equipment should be continuous, automatic battery management. Calculations show that approximately 70% of the total annual costs may be saved for servicing of batteries when DRO has been fully implemented. Further benefits lie in a considerably increased operational reliability of the batteries and in the fact that a large amount of operating information can be collected.<<ETX>>","PeriodicalId":238105,"journal":{"name":"[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131661644","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: 1
State feedback compensation for repetitive servo system of DC-DC converter DC-DC变换器重复伺服系统的状态反馈补偿
[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91 Pub Date : 1991-11-05 DOI: 10.1109/INTLEC.1991.172408
K. Amanuma, M. Kozaki, Y. Sakaki
{"title":"State feedback compensation for repetitive servo system of DC-DC converter","authors":"K. Amanuma, M. Kozaki, Y. Sakaki","doi":"10.1109/INTLEC.1991.172408","DOIUrl":"https://doi.org/10.1109/INTLEC.1991.172408","url":null,"abstract":"A simple design procedure is proposed for a stabilizing compensator of a repetitive digital servosystem of a DC-DC converter which follows exactly a periodic reference and eliminates the effects of both synchronous and asynchronous disturbances by repeating control operations. By assigning all poles of the plant designed as a discrete time system at zero and connecting a reverse system of the plant between a repetitive controller and the plant, finite time settling control is carried out. Control errors caused by a disturbance or an inaccurate measurement of the plant parameters can be decreased sufficiently after the first period of repetitive control operation. The control error due to the parameter variation of the plant can also be rapidly suppressed.<<ETX>>","PeriodicalId":238105,"journal":{"name":"[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91","volume":"308 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116067463","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: 3
A new modular, high-power, microprocessor-controlled power plant (for telephone exchanges) 一种新型模块化、大功率、微处理器控制的发电厂(用于电话交换机)
[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91 Pub Date : 1991-11-05 DOI: 10.1109/INTLEC.1991.172447
F. Guglielmo, S. Lentini
{"title":"A new modular, high-power, microprocessor-controlled power plant (for telephone exchanges)","authors":"F. Guglielmo, S. Lentini","doi":"10.1109/INTLEC.1991.172447","DOIUrl":"https://doi.org/10.1109/INTLEC.1991.172447","url":null,"abstract":"The power plant described was designed for centralized supply of large telephone exchanges. The authors describe the main characteristics of the new plant and of the equipment it contains. They point out the novel features of the plant compared with similarly rated units of earlier conception, underscoring its advantages in terms of safety of management, modularity, adaptability to various types of exchanges and capacity for local and remote diagnoses. Particular emphasis is placed on the use made of a microprocessor for plant management. This device provides full processed data on the operational state of the plant and remotely transmits this information, together with any alarms.<<ETX>>","PeriodicalId":238105,"journal":{"name":"[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131112385","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: 4
A steady-state model of bidirectional UPS for parameter design 用于参数设计的双向UPS稳态模型
[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91 Pub Date : 1991-11-05 DOI: 10.1109/INTLEC.1991.172436
H. Chu, H. Jou, C. Huang, Liang-Chuang Wang
{"title":"A steady-state model of bidirectional UPS for parameter design","authors":"H. Chu, H. Jou, C. Huang, Liang-Chuang Wang","doi":"10.1109/INTLEC.1991.172436","DOIUrl":"https://doi.org/10.1109/INTLEC.1991.172436","url":null,"abstract":"A model to describe the operation of a bidirectional uninterruptible power supply (UPS) is proposed. The performance of the power flow, voltage regulation and charging battery are considered in this model. By using this model, the steady-state characteristics of a bidirectional UPS can be simulated and the design of system parameters can be obtained. To verify the accuracy of this model, a prototype was developed. It is shown that the model is very accurate.<<ETX>>","PeriodicalId":238105,"journal":{"name":"[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132252835","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: 1
Design for the uninterruptible power supply system at the NHK broadcasting center NHK广播中心不间断供电系统的设计
[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91 Pub Date : 1991-11-05 DOI: 10.1109/INTLEC.1991.172434
H. Takebe, T. Kiyohara, S. Mori
{"title":"Design for the uninterruptible power supply system at the NHK broadcasting center","authors":"H. Takebe, T. Kiyohara, S. Mori","doi":"10.1109/INTLEC.1991.172434","DOIUrl":"https://doi.org/10.1109/INTLEC.1991.172434","url":null,"abstract":"The uninterruptible power supply (UPS) system at the NHK broadcasting center, Japan, has been restructured. The restructured system has been designed with emphasis on the following aspects: (1) parallel operation of several UPS units; (2) the system control configuration; and (3) the distribution system feeding power to the broadcasting equipment. A brief overview of this system is presented. The redundancy system was structured to provide for exchange switching with a bypass power source so as to allow the continued supply of power under any circumstances. Hence, the system was designed to permit backup in the event of malfunctions as well as separate system power supply during the execution of maintenance work, thus enhancing both reliability and maintenance characteristics.<<ETX>>","PeriodicalId":238105,"journal":{"name":"[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134089777","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
High frequency link DC/AC converters using three phase output PWM cycloconverters for uninterruptible power supplies 高频链路DC/AC转换器采用三相输出PWM循环转换器不间断电源
[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91 Pub Date : 1991-11-05 DOI: 10.1109/INTLEC.1991.172453
K. Inagaki, S. Okuma
{"title":"High frequency link DC/AC converters using three phase output PWM cycloconverters for uninterruptible power supplies","authors":"K. Inagaki, S. Okuma","doi":"10.1109/INTLEC.1991.172453","DOIUrl":"https://doi.org/10.1109/INTLEC.1991.172453","url":null,"abstract":"The authors propose a main circuit and a control method of a high-frequency link DC/AC power converter with three-phase output using a cycloconverter which converts a high-frequency voltage into a three-phase commercial frequency voltage. This DC/AC converter can control the flow of power bidirectionally, and can charge a DC power supply and compensate for instantaneous reactive power. Simulations and experiments were carried out to confirm the feasibility of the proposed method.<<ETX>>","PeriodicalId":238105,"journal":{"name":"[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134609868","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: 15
Middle point voltage comparison as a simple and practical but effective way to ensure battery system's capacity to perform 中点电压比较是一种简单实用但有效的保证电池系统容量正常运行的方法
[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91 Pub Date : 1991-11-05 DOI: 10.1109/INTLEC.1991.172395
A. Glad, P. Waltari, T. Suntio
{"title":"Middle point voltage comparison as a simple and practical but effective way to ensure battery system's capacity to perform","authors":"A. Glad, P. Waltari, T. Suntio","doi":"10.1109/INTLEC.1991.172395","DOIUrl":"https://doi.org/10.1109/INTLEC.1991.172395","url":null,"abstract":"The authors describe the results obtained in a battery test study made at Telecom Finland. The purpose of the study was to find out how much information the middle point voltage of a battery string can contain about the capacity to perform, and when it can be used as a reliable basis for decision making. The signal used was the voltage deviation between a fixed reference voltage and the middle point voltage of a battery string. The reference voltage was derived from the total battery voltage by means of resistors.<<ETX>>","PeriodicalId":238105,"journal":{"name":"[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115767376","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: 5
Present and future communication equipment grounding topologies 当前和未来的通信设备接地拓扑
[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91 Pub Date : 1991-11-05 DOI: 10.1109/INTLEC.1991.172468
N. Korbel, N. Tullius
{"title":"Present and future communication equipment grounding topologies","authors":"N. Korbel, N. Tullius","doi":"10.1109/INTLEC.1991.172468","DOIUrl":"https://doi.org/10.1109/INTLEC.1991.172468","url":null,"abstract":"The authors discuss the principles underlying the grounding architectures of communication systems installed according to different national standards and operating company practices. They identify some trends in the evolution of grounding system topologies. At present, the grounding topologies of communication systems vary in different countries and according to various operating company practices. A reasonable approach to fit existing equipment into one of the grounding topologies is to divide communication equipment and systems into groups with similar characteristics and grounding requirements. Within a particular group, the grounding system topology can be optimized so that the communication system can be installed in any grounding environment without substantial changes or redesign.<<ETX>>","PeriodicalId":238105,"journal":{"name":"[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123798634","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
Rationalization of electricity operation by centralized electricity monitoring and control equipment 采用集中电力监控设备，使电力运行合理化
[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91 Pub Date : 1991-11-05 DOI: 10.1109/INTLEC.1991.172445
T. Harada, C. Masuyama, T. Arai
{"title":"Rationalization of electricity operation by centralized electricity monitoring and control equipment","authors":"T. Harada, C. Masuyama, T. Arai","doi":"10.1109/INTLEC.1991.172445","DOIUrl":"https://doi.org/10.1109/INTLEC.1991.172445","url":null,"abstract":"Centralized electricity monitoring and controlling equipment was developed. The authors outline this equipment's hardware and software, and describe the application of this system to large-scale facilities. This equipment is a workstation-based power plant controller and supervisor and uses an individual processing system with a multiple communications control unit and data processing units arranged under control of the CPU. The system can monitor/control 128 remote stations.<<ETX>>","PeriodicalId":238105,"journal":{"name":"[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122558891","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
Powering issues in an optical fibre customer access network 光纤客户接入网中的供电问题
[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91 Pub Date : 1991-11-05 DOI: 10.1109/INTLEC.1991.172372
D. Kuhn, E. Lo, T. Robbins
{"title":"Powering issues in an optical fibre customer access network","authors":"D. Kuhn, E. Lo, T. Robbins","doi":"10.1109/INTLEC.1991.172372","DOIUrl":"https://doi.org/10.1109/INTLEC.1991.172372","url":null,"abstract":"The authors give a review of alternatives for powering equipment at the customer end of an optical customer access network (CAN). The alternatives include: local, network, hybrid and optical powering. Comparisons are based on the following aspects; operation and maintenance costs, technological constraints, expected problems, safety, and power requirements. Related issues, such as sizing of backup battery, are discussed. Descriptions of a demonstration unit for local powering and optical CAN trials by Telecom Australia are given.<<ETX>>","PeriodicalId":238105,"journal":{"name":"[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121093845","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信