Pub Date : 2006-12-04DOI: 10.1109/INTLEC.2006.251614
Chen Zhao, Xiaogao Xie, Xinke Wu, Junming Zhang, Z. Qian
The over current protection is a difficult issue for LLC resonant converter design due to its variable frequency operation mode. Using clamping mode to achieve the over current protection can reduce the frequency range for design. However, clamping modes also have some drawbacks and some of them should be taken into account especially during the design processes. This paper focuses on the design consideration comparisons of two typical over current protections by using clamping mode for LLC resonant converter. Finally, an 110 V/10 A prototype is built up to verify the theoretic comparison results
{"title":"The Design Consideration Comparisons of Two Clamping Modes Over Current Protection for LLC Converter","authors":"Chen Zhao, Xiaogao Xie, Xinke Wu, Junming Zhang, Z. Qian","doi":"10.1109/INTLEC.2006.251614","DOIUrl":"https://doi.org/10.1109/INTLEC.2006.251614","url":null,"abstract":"The over current protection is a difficult issue for LLC resonant converter design due to its variable frequency operation mode. Using clamping mode to achieve the over current protection can reduce the frequency range for design. However, clamping modes also have some drawbacks and some of them should be taken into account especially during the design processes. This paper focuses on the design consideration comparisons of two typical over current protections by using clamping mode for LLC resonant converter. Finally, an 110 V/10 A prototype is built up to verify the theoretic comparison results","PeriodicalId":356699,"journal":{"name":"INTELEC 06 - Twenty-Eighth International Telecommunications Energy Conference","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115705905","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}
Pub Date : 2006-12-04DOI: 10.1109/INTLEC.2006.251661
Petronio Junior, Pedro G. Palheta, Denis B. Da Silva, Miguel Do Nascimento, Alex Costa, Pedro Ferreira Filho, Jose Siqueira
This paper describe the development of a digital control applied in energy generation using photovoltaic cells in joint with the other generator system (a diesel generator, for example) the technique consist in the localization of the maximum power point (pick power tracking) of photovoltaic cells utilizing digital control. Its application is attractive to isolated load system, such as isolated communication system and data transmission located in remote Amazon areas
本文描述了一种应用于光伏电池与其他发电系统(如柴油发电机)联合发电的数字控制技术的发展,该技术包括利用数字控制光伏电池最大功率点的定位(pick power tracking)。它的应用对隔离负载系统,如位于亚马逊偏远地区的隔离通信系统和数据传输具有吸引力
{"title":"Applied Digital Control for Localization of the Maximum Power of Photovoltaic Generators","authors":"Petronio Junior, Pedro G. Palheta, Denis B. Da Silva, Miguel Do Nascimento, Alex Costa, Pedro Ferreira Filho, Jose Siqueira","doi":"10.1109/INTLEC.2006.251661","DOIUrl":"https://doi.org/10.1109/INTLEC.2006.251661","url":null,"abstract":"This paper describe the development of a digital control applied in energy generation using photovoltaic cells in joint with the other generator system (a diesel generator, for example) the technique consist in the localization of the maximum power point (pick power tracking) of photovoltaic cells utilizing digital control. Its application is attractive to isolated load system, such as isolated communication system and data transmission located in remote Amazon areas","PeriodicalId":356699,"journal":{"name":"INTELEC 06 - Twenty-Eighth International Telecommunications Energy Conference","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126192561","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}
Pub Date : 2006-12-04DOI: 10.1109/INTLEC.2006.251630
N. Medora, A. Kusko
Modeling and simulation of lead acid batteries is of utmost importance for transportation systems such as hybrid and electric vehicles, golf carts, electric scooters, and wheelchairs; and for battery backup systems such as UPS for computers and telecommunication systems. Considerable effort is put into the selection of the appropriate battery with specific regard to the battery's state of charge (SOC) and battery reserve time during the discharge profile for the various loading conditions expected. The new enhanced model has increased accuracy; it includes voltage, current, and power monitoring functions and further permits modeling of the cycle-by-cycle charge/discharge characteristics which is imperative for regenerative applications. Furthermore, the operating features of this enhanced battery model are demonstrated for two regenerative simulations. The new battery model is interfaced to a full-bridge, bi-directional, PWM controller with bi-polar voltage switching. The load is a DC motor model with motor parameters such as load torque, viscous torque and inertia. The power converter/DC motor system presents bidirectional power flow to the battery model. The purpose of the first simulation is to demonstrate real-world operation of the battery model including regeneration. A second simulation has an ultra-capacitor bank connected across the battery terminals to compare the battery model charge/discharge parameters such as voltage, current and power when the ultra-capacitor bank is absent and when present in the system
{"title":"An Enhanced Dynamic Battery Model of Lead-Acid Batteries Using Manufacturers' Data","authors":"N. Medora, A. Kusko","doi":"10.1109/INTLEC.2006.251630","DOIUrl":"https://doi.org/10.1109/INTLEC.2006.251630","url":null,"abstract":"Modeling and simulation of lead acid batteries is of utmost importance for transportation systems such as hybrid and electric vehicles, golf carts, electric scooters, and wheelchairs; and for battery backup systems such as UPS for computers and telecommunication systems. Considerable effort is put into the selection of the appropriate battery with specific regard to the battery's state of charge (SOC) and battery reserve time during the discharge profile for the various loading conditions expected. The new enhanced model has increased accuracy; it includes voltage, current, and power monitoring functions and further permits modeling of the cycle-by-cycle charge/discharge characteristics which is imperative for regenerative applications. Furthermore, the operating features of this enhanced battery model are demonstrated for two regenerative simulations. The new battery model is interfaced to a full-bridge, bi-directional, PWM controller with bi-polar voltage switching. The load is a DC motor model with motor parameters such as load torque, viscous torque and inertia. The power converter/DC motor system presents bidirectional power flow to the battery model. The purpose of the first simulation is to demonstrate real-world operation of the battery model including regeneration. A second simulation has an ultra-capacitor bank connected across the battery terminals to compare the battery model charge/discharge parameters such as voltage, current and power when the ultra-capacitor bank is absent and when present in the system","PeriodicalId":356699,"journal":{"name":"INTELEC 06 - Twenty-Eighth International Telecommunications Energy Conference","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125148259","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}
Pub Date : 2006-12-04DOI: 10.1109/INTLEC.2006.251659
C. Hsu, Neng Wang, W. Chan, P. Jain
Power line communications (PLC) has received much attention due to the wide connectivity and availability of power lines. Effective PLC must overcome the harsh and noisy environments inherent in PLC channels. HomePlug 1.0 is the current PLC standard in North America. The physical layer of HomePlug 1.0 employs orthogonal frequency division multiplexing (OFDM) as well as concatenated Reed-Solomon and convolutional coding. Aiming to obtain higher PLC throughput, we investigate the performance of OFDM with low-density parity-check (LDPC) codes and compare the proposed scheme with HomePlug 1.0 ROBO mode. In our simulations, the PLC channel is modeled by multipath fading, with Middleton's Class A noise (AWCN) model simulating the worst-case impulsive noise. We apply clipping to lessen the impact of impulsive noise. A simple but effective method is devised to estimate the variance of the clipped noise for LDPC decoding. In comparison with ROBO mode, the proposed scheme offers improved performance and lower computational complexity per decoded bit. Our scheme provides increased throughput by dispensing with ROBO mode's repetitive transmission of information to gain time diversity
{"title":"Improving HomePlug Power Line Communications with LDPC Coded OFDM","authors":"C. Hsu, Neng Wang, W. Chan, P. Jain","doi":"10.1109/INTLEC.2006.251659","DOIUrl":"https://doi.org/10.1109/INTLEC.2006.251659","url":null,"abstract":"Power line communications (PLC) has received much attention due to the wide connectivity and availability of power lines. Effective PLC must overcome the harsh and noisy environments inherent in PLC channels. HomePlug 1.0 is the current PLC standard in North America. The physical layer of HomePlug 1.0 employs orthogonal frequency division multiplexing (OFDM) as well as concatenated Reed-Solomon and convolutional coding. Aiming to obtain higher PLC throughput, we investigate the performance of OFDM with low-density parity-check (LDPC) codes and compare the proposed scheme with HomePlug 1.0 ROBO mode. In our simulations, the PLC channel is modeled by multipath fading, with Middleton's Class A noise (AWCN) model simulating the worst-case impulsive noise. We apply clipping to lessen the impact of impulsive noise. A simple but effective method is devised to estimate the variance of the clipped noise for LDPC decoding. In comparison with ROBO mode, the proposed scheme offers improved performance and lower computational complexity per decoded bit. Our scheme provides increased throughput by dispensing with ROBO mode's repetitive transmission of information to gain time diversity","PeriodicalId":356699,"journal":{"name":"INTELEC 06 - Twenty-Eighth International Telecommunications Energy Conference","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124956327","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}
Pub Date : 2006-12-04DOI: 10.1109/INTLEC.2006.251670
M. Orabi, A. El Aroudi
In this paper we use a new discrete time model of a boost power factor correction (PFC) AC-DC circuit under fixed frequency average current control to obtain dynamical behaviors of the system at different scales of frequency. This system is characterized by two different forcing periods and thus by two different scales of time. Four different kinds of standard instability phenomena are possible depending on the parameters of the circuit. All these instabilities are detectable by using the obtained nonlinear discrete time models. A combination of more than one instability phenomenon is also possible. We put in evidence most of the nonlinear phenomena that could occur in the system by using the switched circuit-based model and we give a unified discrete time model that is able to predict accurately these phenomena. This model is presented to study the stability of the system at different scales of time
{"title":"Different Frequency Instabilities of Averaged Current Controlled Boost PFC AC-DC Regulators","authors":"M. Orabi, A. El Aroudi","doi":"10.1109/INTLEC.2006.251670","DOIUrl":"https://doi.org/10.1109/INTLEC.2006.251670","url":null,"abstract":"In this paper we use a new discrete time model of a boost power factor correction (PFC) AC-DC circuit under fixed frequency average current control to obtain dynamical behaviors of the system at different scales of frequency. This system is characterized by two different forcing periods and thus by two different scales of time. Four different kinds of standard instability phenomena are possible depending on the parameters of the circuit. All these instabilities are detectable by using the obtained nonlinear discrete time models. A combination of more than one instability phenomenon is also possible. We put in evidence most of the nonlinear phenomena that could occur in the system by using the switched circuit-based model and we give a unified discrete time model that is able to predict accurately these phenomena. This model is presented to study the stability of the system at different scales of time","PeriodicalId":356699,"journal":{"name":"INTELEC 06 - Twenty-Eighth International Telecommunications Energy Conference","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115111688","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}
Pub Date : 2006-12-04DOI: 10.1109/INTLEC.2006.251592
J. Viera, María Verónica González, J. Antón, J. Campo, F. Ferrero, M. Valledor
In last years, NiCd and NiMH technologies have settled in the market of medium/high capacity batteries. Fast-charge is very interesting in different applications (communications systems, electric vehicles, low-earth-orbit spacecrafts) in order to minimizing charge time. The problem is that high currents involved in fast-charge process affect battery behavior modifying parameters as battery charge acceptance. Moreover, battery temperature increase and gasses production related to overcharging make necessary to detect accurately the end of fast-charge to avoid battery damage. Limited information about results of charging process at different charging rates (i.e. time reduction versus charge efficiency) makes difficult to select the optimum rate in each specific application. The lack of information is more problematic in NiMH batteries due to they can not support as well as NiCd batteries extreme working conditions. For these reasons, an intensive study about NiCd and NiMH battery behavior under different charging rates was developed. In this paper, the effects of fast-charging on medium/high capacity NiCd and NiMH batteries are shown. In this way, conclusions about the application range of fast-charging in both technologies are drawn
{"title":"NiMH vs NiCd Batteries under High Charging Rates","authors":"J. Viera, María Verónica González, J. Antón, J. Campo, F. Ferrero, M. Valledor","doi":"10.1109/INTLEC.2006.251592","DOIUrl":"https://doi.org/10.1109/INTLEC.2006.251592","url":null,"abstract":"In last years, NiCd and NiMH technologies have settled in the market of medium/high capacity batteries. Fast-charge is very interesting in different applications (communications systems, electric vehicles, low-earth-orbit spacecrafts) in order to minimizing charge time. The problem is that high currents involved in fast-charge process affect battery behavior modifying parameters as battery charge acceptance. Moreover, battery temperature increase and gasses production related to overcharging make necessary to detect accurately the end of fast-charge to avoid battery damage. Limited information about results of charging process at different charging rates (i.e. time reduction versus charge efficiency) makes difficult to select the optimum rate in each specific application. The lack of information is more problematic in NiMH batteries due to they can not support as well as NiCd batteries extreme working conditions. For these reasons, an intensive study about NiCd and NiMH battery behavior under different charging rates was developed. In this paper, the effects of fast-charging on medium/high capacity NiCd and NiMH batteries are shown. In this way, conclusions about the application range of fast-charging in both technologies are drawn","PeriodicalId":356699,"journal":{"name":"INTELEC 06 - Twenty-Eighth International Telecommunications Energy Conference","volume":"213 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132812835","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}
Pub Date : 2006-12-04DOI: 10.1109/INTLEC.2006.251603
M. R. Moore
The Telecommunications Act of 1996 ("The '96 Telco Act") opened the door to companies like Universal Solutions, Inc. (USI) to provide engineering, furnishing and installation services (EF&I) to the telecommunications industry. The '96 Telco Act triggered significant speculation by venture capitalists to profit from the entry of competition for the Regional Bell Operating Companies (RBOCs). In addition, The '96 Telco Act facilitated spending by start-ups to provide telecommunications services by co-locating with the RBOCs. The '96 Telco Act forced RBOCs to lease their private facilities to co-location customers below cost. USI supported Competitive Local Exchange Carriers (CLEC). When The '96 Telco Act was passed, the industry witnessed the rise of RBOCs, and Universal Solutions was in the enviable position to support all of them. Shortly thereafter, USI landed contracts with all the major CLECs and then the all of RBOCs [end-users]. The '96 Telco Act moved RBOCs - which enjoyed operating as a local region monopoly to compete with cable companies, co-location customers and other RBOCs nationwide. The competition resulted in mass consolidation of telecommunication providers and the number of RBOCs quickly shrunk from eight to four
{"title":"The Telecommunications Act of 1996 - Analysis a Decade Later. The Rise and Fall of Universal Solutions, Inc.","authors":"M. R. Moore","doi":"10.1109/INTLEC.2006.251603","DOIUrl":"https://doi.org/10.1109/INTLEC.2006.251603","url":null,"abstract":"The Telecommunications Act of 1996 (\"The '96 Telco Act\") opened the door to companies like Universal Solutions, Inc. (USI) to provide engineering, furnishing and installation services (EF&I) to the telecommunications industry. The '96 Telco Act triggered significant speculation by venture capitalists to profit from the entry of competition for the Regional Bell Operating Companies (RBOCs). In addition, The '96 Telco Act facilitated spending by start-ups to provide telecommunications services by co-locating with the RBOCs. The '96 Telco Act forced RBOCs to lease their private facilities to co-location customers below cost. USI supported Competitive Local Exchange Carriers (CLEC). When The '96 Telco Act was passed, the industry witnessed the rise of RBOCs, and Universal Solutions was in the enviable position to support all of them. Shortly thereafter, USI landed contracts with all the major CLECs and then the all of RBOCs [end-users]. The '96 Telco Act moved RBOCs - which enjoyed operating as a local region monopoly to compete with cable companies, co-location customers and other RBOCs nationwide. The competition resulted in mass consolidation of telecommunication providers and the number of RBOCs quickly shrunk from eight to four","PeriodicalId":356699,"journal":{"name":"INTELEC 06 - Twenty-Eighth International Telecommunications Energy Conference","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132884756","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}
Pub Date : 2006-12-04DOI: 10.1109/INTLEC.2006.251583
A. Elbanhawy
Recent advances in packaging and silicon design allow the design engineer to implement DC-DC converter designs breaking the current records in power density (Watt/in2) and current density (Amp/in2). We will discuss in details a recent design that boasts 400 Watt/in2 on standard 6-8 layer boards. This approach allows the design engineer to fully optimize both the electrical and PCB design as all the parasitic inductances and resistances are almost fully eliminated allowing high frequency high efficiency performance
{"title":"The Wave of the Future in High Density PC Converters","authors":"A. Elbanhawy","doi":"10.1109/INTLEC.2006.251583","DOIUrl":"https://doi.org/10.1109/INTLEC.2006.251583","url":null,"abstract":"Recent advances in packaging and silicon design allow the design engineer to implement DC-DC converter designs breaking the current records in power density (Watt/in2) and current density (Amp/in2). We will discuss in details a recent design that boasts 400 Watt/in2 on standard 6-8 layer boards. This approach allows the design engineer to fully optimize both the electrical and PCB design as all the parasitic inductances and resistances are almost fully eliminated allowing high frequency high efficiency performance","PeriodicalId":356699,"journal":{"name":"INTELEC 06 - Twenty-Eighth International Telecommunications Energy Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132133182","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}
Pub Date : 2006-12-04DOI: 10.1109/INTLEC.2006.251643
B. Serban
Power systems for telecommunications are required to function at high level of reliability in harsh environmental conditions of vibrations, shocks and earthquakes. The main objective of this paper is to discuss the Operational Vibration Test as an alternative to the NEBS seismic test of power equipment at shelf level. The paper discusses the rationale for an alternative to NEBS seismic test, the theoretical background, and presents a case study of power equipment shelf and distribution. Finally, the paper shows that the alternative test is more cost effective than a full seismic test and could be used for power equipment design in a timely manner
{"title":"Operational Vibration Test- An Alternative to NEBS Seismic Test for Telecom Power Equipment","authors":"B. Serban","doi":"10.1109/INTLEC.2006.251643","DOIUrl":"https://doi.org/10.1109/INTLEC.2006.251643","url":null,"abstract":"Power systems for telecommunications are required to function at high level of reliability in harsh environmental conditions of vibrations, shocks and earthquakes. The main objective of this paper is to discuss the Operational Vibration Test as an alternative to the NEBS seismic test of power equipment at shelf level. The paper discusses the rationale for an alternative to NEBS seismic test, the theoretical background, and presents a case study of power equipment shelf and distribution. Finally, the paper shows that the alternative test is more cost effective than a full seismic test and could be used for power equipment design in a timely manner","PeriodicalId":356699,"journal":{"name":"INTELEC 06 - Twenty-Eighth International Telecommunications Energy Conference","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134178448","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}
Pub Date : 2006-12-04DOI: 10.1109/INTLEC.2006.251619
S. Wood, D. Goodman
This paper defines the approach and methodology for the deployment of prognostics in telecom power supplies. With 100% up-time being the ultimate target, prognostics can be effectively utilized to provoke early actions to avoid costly potential down-time events. An example will be provided using a common telecom power supply. Further analysis will be provided to demonstrate the return-on-investment that prognostics adoption can achieve
{"title":"Return-on-Investment (ROI) for Electronic Prognostics in High Reliability Telecom Applications","authors":"S. Wood, D. Goodman","doi":"10.1109/INTLEC.2006.251619","DOIUrl":"https://doi.org/10.1109/INTLEC.2006.251619","url":null,"abstract":"This paper defines the approach and methodology for the deployment of prognostics in telecom power supplies. With 100% up-time being the ultimate target, prognostics can be effectively utilized to provoke early actions to avoid costly potential down-time events. An example will be provided using a common telecom power supply. Further analysis will be provided to demonstrate the return-on-investment that prognostics adoption can achieve","PeriodicalId":356699,"journal":{"name":"INTELEC 06 - Twenty-Eighth International Telecommunications Energy Conference","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129482742","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}