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2017 IEEE International Telecommunications Energy Conference (INTELEC)最新文献

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Oscillation condition analysis of a VHF self-oscillating gate driver based on a Φ2 resonant inverter 基于Φ2谐振逆变器的甚高频自振荡栅极驱动器的振荡条件分析
2017 IEEE International Telecommunications Energy Conference (INTELEC) Pub Date : 2017-10-01 DOI: 10.1109/INTLEC.2017.8214201
Takuya Mizushima, N. Ishibashi, Kento Goto, M. Hirokawa, A. Katsuki
{"title":"Oscillation condition analysis of a VHF self-oscillating gate driver based on a Φ2 resonant inverter","authors":"Takuya Mizushima, N. Ishibashi, Kento Goto, M. Hirokawa, A. Katsuki","doi":"10.1109/INTLEC.2017.8214201","DOIUrl":"https://doi.org/10.1109/INTLEC.2017.8214201","url":null,"abstract":"In recent years, most electronic devices are miniaturized because the technique on integrated circuits has been developing. Switching power supplies become small-sized by using high switching frequency to decrease the size of reactance components. The resonant converters are useful because of the low switching loss in semiconductor switches. LC oscillators are suitable for VHF gate driver in resonant converters. In this paper, an analysis on oscillation conditions of a 110-MHz self-excitation gate driver based on class-Φ2 inverter is reported. The oscillation frequency characteristics and the conditions for oscillation are analyzed in detail including the influence due to the internal capacitances of switching devices.","PeriodicalId":366207,"journal":{"name":"2017 IEEE International Telecommunications Energy Conference (INTELEC)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127133109","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
Lifetime prognostics of hybrid backup power system: State-of-the-art 混合备用电源系统的寿命预测:最新技术
2017 IEEE International Telecommunications Energy Conference (INTELEC) Pub Date : 2017-10-01 DOI: 10.1109/INTLEC.2017.8214199
Simon Dyhr S⊘nderskov, M. Swierczynski, S. Munk‐Nielsen
{"title":"Lifetime prognostics of hybrid backup power system: State-of-the-art","authors":"Simon Dyhr S⊘nderskov, M. Swierczynski, S. Munk‐Nielsen","doi":"10.1109/INTLEC.2017.8214199","DOIUrl":"https://doi.org/10.1109/INTLEC.2017.8214199","url":null,"abstract":"Modern telecommunication power supplies are based on renewable solutions, e.g. fuel cell/battery hybrid systems, for immediate and prolonged load support during grid faults. The high demand for power continuity increases the emphasis on power supply reliability and availability which raises the need for monitoring the system condition for timely maintenance and prevention of downtime. Although present on component level, no current literature addresses the condition monitoring from the perspective of a fuel cell/battery hybrid system such as the telecommunication power supply. This paper is a first step towards a condition monitoring approach for such systems. Firstly, the application is defined, thereafter the benefits of predictive maintenance strategies and the prognostics and health management framework are described. A literature review of condition monitoring of the major system components: fuel cell, battery, and converters, is given. Finally, the paper presents a discussion on the available monitoring techniques from a commercial hybrid system point view.","PeriodicalId":366207,"journal":{"name":"2017 IEEE International Telecommunications Energy Conference (INTELEC)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126568573","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
Multi-node power supply resiliency of communication networks during extreme events 极端事件下通信网络多节点供电弹性研究
2017 IEEE International Telecommunications Energy Conference (INTELEC) Pub Date : 2017-10-01 DOI: 10.1109/INTLEC.2017.8214129
V. Krishnamurthy, A. Kwasinski
{"title":"Multi-node power supply resiliency of communication networks during extreme events","authors":"V. Krishnamurthy, A. Kwasinski","doi":"10.1109/INTLEC.2017.8214129","DOIUrl":"https://doi.org/10.1109/INTLEC.2017.8214129","url":null,"abstract":"This paper develops resiliency models for cell sites considering multiple nodes during extreme events. The spatial and temporal resilience characteristics are calculated for different cities across the US. Evaluating local energy storage's impact on uptime and user-cell site connections is done via the developed multi-node resilience models. The multi-node resiliency model provides a broad quantitative view of cell site power supply performance and its impact on communication system performance. Local resilience calculations were used as a building block to calculate the multi-node resiliency. The resilience functions show grid failure, cellular traffic and travel delays concurrently leads to poor single node as well as multi-node resilience in the absence of energy storage. Overall power supply resilience improvement can be observed due to proper energy storage sizing and planning for possible long delays in fuel delivery with larger storage tanks.","PeriodicalId":366207,"journal":{"name":"2017 IEEE International Telecommunications Energy Conference (INTELEC)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128094285","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 flyback converter based partial power processing structure for BESS with voltage/current regulation and battery balancing functionalities 基于反激变换器的BESS部分功率处理结构，具有电压/电流调节和电池平衡功能
2017 IEEE International Telecommunications Energy Conference (INTELEC) Pub Date : 2017-10-01 DOI: 10.1109/INTLEC.2017.8214166
J. Qi, D. Dah-Chuan Lu
{"title":"A flyback converter based partial power processing structure for BESS with voltage/current regulation and battery balancing functionalities","authors":"J. Qi, D. Dah-Chuan Lu","doi":"10.1109/INTLEC.2017.8214166","DOIUrl":"https://doi.org/10.1109/INTLEC.2017.8214166","url":null,"abstract":"This paper presents a flyback converter based partial power processing structure for battery energy storage system (BESS). It combines both of the battery balancing functionality and power stage regulation functionality into one system. The proposed BESS only have one control variable which is the common duty cycle for all the flyback converters. It is used for the voltage or current regulation. There is no active control for the battery balancing because the current sharing of individual battery is directly proportional to the battery terminal voltage in discharging mode and inversely proportional in charging mode. The unbalanced battery terminal voltages will gradually converge while system running. Beyond these, only a small portion of the total discharging/charging power is processed by the converters. The overall system efficiency can be significantly improved compared to traditional BESSs. Experimental results of a prototype with two batteries verified that the proposed BESS provides satisfied performance.","PeriodicalId":366207,"journal":{"name":"2017 IEEE International Telecommunications Energy Conference (INTELEC)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127970232","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
Best practices guide for remote line power 远程线路电源的最佳实践指南
2017 IEEE International Telecommunications Energy Conference (INTELEC) Pub Date : 2017-10-01 DOI: 10.1109/intlec.2017.8214131
Kevin Borders, Grant Clark, S. Hariharan, T. Wilson
{"title":"Best practices guide for remote line power","authors":"Kevin Borders, Grant Clark, S. Hariharan, T. Wilson","doi":"10.1109/intlec.2017.8214131","DOIUrl":"https://doi.org/10.1109/intlec.2017.8214131","url":null,"abstract":"Telecommunications networks have been transitioning from a centralized to distributed architecture. With Fiber extending deeper into the wireline network and Small Cells becoming a more prevalent means for targeting hard-to-reach subscribers, there has been significant growth in the number of network elements located far from the central switching office. The sheer quantity of network devices increases the number of locations requiring power. Conventional power solutions, where AC is delivered by the utility to the site and then converted to the proper voltage for the equipment, has proven to be capital-intensive and expensive to maintain (especially if battery backup is required). Moreover, deployment schedules are complicated by the need to manage multiple electrical utilities supplying AC power to the sites. This paper provides an overview of how to plan, engineer, and deploy a remote line powered (RLP) network. It provides details on how RLP works, how far it can reach, and how to qualify cable pairs for use in these circuits. The paper concludes with a summary of best practices for deploying Remote Line Power.","PeriodicalId":366207,"journal":{"name":"2017 IEEE International Telecommunications Energy Conference (INTELEC)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131815229","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
Estimating reliability of a telecommunications energy network 电信能源网络可靠性评估
2017 IEEE International Telecommunications Energy Conference (INTELEC) Pub Date : 2017-10-01 DOI: 10.1109/INTLEC.2017.8214127
F. Bodi
{"title":"Estimating reliability of a telecommunications energy network","authors":"F. Bodi","doi":"10.1109/INTLEC.2017.8214127","DOIUrl":"https://doi.org/10.1109/INTLEC.2017.8214127","url":null,"abstract":"The paper presents a novel Telepower (−48V DC) reliability method, directly utilising site asset data in simulation software, to determine the effectiveness of battery replacement programs. Reliability is often estimated by a simple count of the number of outages per annum. This approach has many shortcomings because a count of outages can change dramatically even when the reliability of the physical network remains unchanged. Since infrastructure expenditure, such as battery lifecycle replacement programs only affects the physical network, basing that expenditure on a count of historical outages can lead to significant over or under-spending. This paper presents a way to estimate reliability that overcomes these difficulties. The paper will address how to estimate and track reliability without the attendant “noise” that accompanies more traditional methods. The “noise” includes external factors such as seasonality, singular environmental disturbances and changing standards, just to name a few. A new method will be demonstrated by an assessment of the reliability of approximately 25,000 48V DC power systems. The paper will show how the new method can effectively utilise “big data” inherent in large networks to arrive at a reliability estimate consistent with the physical network. The predicted change in reliability before and after a capital expenditure program will be demonstrated. The impact on Telepower reliability from changing battery reserves and rectifier redundancy will be demonstrated. This new method has wide application in solving a range of difficult cost-reliability problems.","PeriodicalId":366207,"journal":{"name":"2017 IEEE International Telecommunications Energy Conference (INTELEC)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129219461","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
Classification of causes of broken solar panels in solar power plant 太阳能电站太阳能板破损原因分类
2017 IEEE International Telecommunications Energy Conference (INTELEC) Pub Date : 2017-10-01 DOI: 10.1109/INTLEC.2017.8214123
Yuji Higuchi, T. Babasaki
{"title":"Classification of causes of broken solar panels in solar power plant","authors":"Yuji Higuchi, T. Babasaki","doi":"10.1109/INTLEC.2017.8214123","DOIUrl":"https://doi.org/10.1109/INTLEC.2017.8214123","url":null,"abstract":"In this paper, we report various methods for classifying faults that use the data of string measurement devices used for continuously monitoring solar power panels remotely. Low power generation of solar panels is caused not only by panels being broken but also by shadows cast by structures, weeds, etc. If these failures can be classified by using the data of remote string measurement devices, it is expected that the number of unnecessary repairs will be reduced, making preparations for possible failures more efficient. We focused on low-open circuit voltage cluster failure, shadows, and weeds, which often decrease power generation at solar panels, and we examined these classification methods with string measurement data. Furthermore, a failure classification flow was created by combining various failure detection methods. When comparing this flow with the results of drone inspection, the accuracy rate was 74.0%.","PeriodicalId":366207,"journal":{"name":"2017 IEEE International Telecommunications Energy Conference (INTELEC)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124099759","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
Telecom Operator's to accelerate the migration towards 400 volt direct current efficient powering for telecom/ICT equipment and coupling sites to smart energy microgrids 电信运营商将加速向电信/ICT设备400伏直流高效供电的迁移，并将耦合站点迁移到智能能源微电网
2017 IEEE International Telecommunications Energy Conference (INTELEC) Pub Date : 2017-10-01 DOI: 10.1109/INTLEC.2017.8214134
D. Marquet, O. Foucault, J. Pichon, K. Hirose, C. Bianco, Richard Hockley
{"title":"Telecom Operator's to accelerate the migration towards 400 volt direct current efficient powering for telecom/ICT equipment and coupling sites to smart energy microgrids","authors":"D. Marquet, O. Foucault, J. Pichon, K. Hirose, C. Bianco, Richard Hockley","doi":"10.1109/INTLEC.2017.8214134","DOIUrl":"https://doi.org/10.1109/INTLEC.2017.8214134","url":null,"abstract":"Since the year 2000, the up to 400 Volt Direct Current (400VDC) powering interface for Telecom and Datacenters equipment has been standardized and industrialized as it brings advantages. Compared to 48 Volt Direct Current power solutions, it uses much less copper and the energy losses in cable are lower. Compared to Alternating Current uninterrupted power supply (UPS) benefits are simplicity higher reliability and scalability with higher modular design. Now large implementations projects in thousands of Telecom networks sites and Megawatt datacenters are operated under 400VDC and acceleration of the use of this voltage interface requires solutions to simplify the migration towards 400V DC with progressive steps on many other sites. At the same time extended use is proposed for coupling renewable energy to the local DC power station and for remote powering of Telecom access network nodes. This paper will present the issues and the status of solutions found to accelerate the adoption of the 400V DC solutions in all these cases.","PeriodicalId":366207,"journal":{"name":"2017 IEEE International Telecommunications Energy Conference (INTELEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121458051","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
Research of power supply and cooling mode for node room under 5G network architecture 5G网络架构下节点机房供电与制冷方式研究
2017 IEEE International Telecommunications Energy Conference (INTELEC) Pub Date : 2017-10-01 DOI: 10.1109/INTLEC.2017.8211682
Zhen Wang, Jianfeng Huang
{"title":"Research of power supply and cooling mode for node room under 5G network architecture","authors":"Zhen Wang, Jianfeng Huang","doi":"10.1109/INTLEC.2017.8211682","DOIUrl":"https://doi.org/10.1109/INTLEC.2017.8211682","url":null,"abstract":"With the arrival of 5G communication era, a large number of core network equipments and transmission equipments with high power density and high performance are used in the node rooms. In the era of 5G, there's a groundswell in the requirement of safety, stability and reliability for node room. At present, the main short board of the node room is the capacity of the power supply and air conditioning system. The monitoring system also needs to be improved. In order to develop 5G communication business successfully, we studied the power supply, refrigeration and monitoring model of the node room in this project. From architecture of the uninterrupted power supply system and continuous air conditioning system, to the model of monitoring system, we have developed a series of new power architectures and new standards for operation and maintenance mode. According to the result of the pilot project, the power supply and cooling mode can meet the needs of node room under 5G network architecture.","PeriodicalId":366207,"journal":{"name":"2017 IEEE International Telecommunications Energy Conference (INTELEC)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116308902","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
Pure lead carbon technology development PLH+C development for PSoC cycling and fast charging 纯铅碳技术的发展，用于PSoC循环和快速充电的PLH+C技术的发展
2017 IEEE International Telecommunications Energy Conference (INTELEC) Pub Date : 2017-10-01 DOI: 10.1109/INTLEC.2017.8214146
S. Peng, Fang Yuan
{"title":"Pure lead carbon technology development PLH+C development for PSoC cycling and fast charging","authors":"S. Peng, Fang Yuan","doi":"10.1109/INTLEC.2017.8214146","DOIUrl":"https://doi.org/10.1109/INTLEC.2017.8214146","url":null,"abstract":"In this paper, we will present the recent technology investigation which has integrated the advantages of thin plate pure lead and carbon technologies (PLH+C). This advanced technology will provide an alternative solution for energy storage market, especially for end users who are looking for high charge acceptance, fast charging, and long Partial State of Charge (PSoC) cycle performance. The test data shows that PLH+C improves charge efficiency significantly, over 2 times as much as thin plate pure lead battery technology. Fast charging (1–2 hours) can be achievable by using proper charging profile. Water consumption and end of charging current can be managed by reducing to the half of general pure lead batteries' values. For IEC61427-1 PSoC cycle performance, ongoing test shows good trend to achieve high cycles numbers.","PeriodicalId":366207,"journal":{"name":"2017 IEEE International Telecommunications Energy Conference (INTELEC)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125091791","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
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