2019 IEEE/IAS 55th Industrial and Commercial Power Systems Technical Conference (I&CPS)最新文献_第6页

UPS Node based Workload Management for Data Centers considering Flexible Service Requirements 基于UPS节点的灵活业务需求数据中心负载管理

2019 IEEE/IAS 55th Industrial and Commercial Power Systems Technical Conference (I&CPS) Pub Date : 2019-05-01 DOI: 10.1109/ICPS.2019.8733361

Fang Cao, Yajing Wang, Fengtian Zhu, Yujie Cao, Zhaohao Ding

{"title":"UPS Node based Workload Management for Data Centers considering Flexible Service Requirements","authors":"Fang Cao, Yajing Wang, Fengtian Zhu, Yujie Cao, Zhaohao Ding","doi":"10.1109/ICPS.2019.8733361","DOIUrl":"https://doi.org/10.1109/ICPS.2019.8733361","url":null,"abstract":"As the IT sector is rapidly growing all over the world, more and more energy is consumed by data centers, which leads to the continuous increase of operating costs. Among other factors, the load management among uninterruptible power supply (UPS) nodes should be considered in the energy management model of data center since its energy efficiency is correlated to load ratio. In this paper, an energy management scheme of data center which focuses on the workload scheduling among UPS nodes is proposed to improve its operation efficiency. The flexible service requirement of batch workloads is also modeled in the proposed scheme to illustrate the cost of flexibility. In the proposed scheme, the efficiency of UPS nodes is modeled as a function of load ratio. Meanwhile, the cost of inconvenience is introduced to represent the flexible service requirements of batch workloads. A stochastic formulation is established to address the uncertainties involved in the scheduling process. Simulated case studies are provided and the results demonstrate the effectiveness of this proposed approach.","PeriodicalId":160476,"journal":{"name":"2019 IEEE/IAS 55th Industrial and Commercial Power Systems Technical Conference (I&CPS)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130742148","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: 10

High Impedance Fault Detection and Isolation in DC Microgrids 直流微电网的高阻抗故障检测与隔离

2019 IEEE/IAS 55th Industrial and Commercial Power Systems Technical Conference (I&CPS) Pub Date : 2019-05-01 DOI: 10.1109/ICPS.2019.8733334

K. Subramaniam, M. Illindala

引用次数: 7

Determination of Load Characteristics for Electrical Load Analysis in Shipboard Microgrids 船载微电网电力负荷分析的负荷特性测定

2019 IEEE/IAS 55th Industrial and Commercial Power Systems Technical Conference (I&CPS) Pub Date : 2019-05-01 DOI: 10.1109/ICPS.2019.8733338

Ching-Jin Chen, C. Su, J. Teng

{"title":"Determination of Load Characteristics for Electrical Load Analysis in Shipboard Microgrids","authors":"Ching-Jin Chen, C. Su, J. Teng","doi":"10.1109/ICPS.2019.8733338","DOIUrl":"https://doi.org/10.1109/ICPS.2019.8733338","url":null,"abstract":"Electric load analysis is an important task in early new stage for design of shipboard microgrids (SMGs). The installation generation capacity onboard depends on the accurate result of the analysis, which significantly affects the system economic and secure operations. In the traditional electrical load analysis, the demand factor is often obtained from engineering experiences which can lead to inaccurate analysis results. In order to obtain better results, a methodology for electrical load analysis in SMGs is proposed in this paper. The load analysis spreadsheet is adopted to find the power consumption of key electric loads in SMGs. The actual power consumption of selected loads are collected by intelligent meters. The statistical analysis is then performed to find the critical parameter of each selected load in the load analysis under different operating conditions based on the power measurement of field test and load analysis is performed for estimating system power demand accordingly. Three large practical maritime microgrids are selected for numerical analysis to ensure the performance of proposed method. The proposed method has been adopted by local ship builders in Taiwan to better understand the load characteristics in shipboard microgrids to support various functions of system planning and operation in a more effective manner.","PeriodicalId":160476,"journal":{"name":"2019 IEEE/IAS 55th Industrial and Commercial Power Systems Technical Conference (I&CPS)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132975942","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

Discrete Wavelet Transform for Improving the Accuracy of an Unbalance Current Protection Relay Due to Transient Fault and Inrush Current Signals 离散小波变换在提高暂态故障和涌流不平衡电流保护继电器精度中的应用

2019 IEEE/IAS 55th Industrial and Commercial Power Systems Technical Conference (I&CPS) Pub Date : 2019-05-01 DOI: 10.1109/ICPS.2019.8733341

T. Patcharoen, A. Ngaopitakkul

引用次数: 2

Design of an Industrial IoT-Based Monitoring System for Power Substations 基于工业物联网的变电站监控系统设计

2019 IEEE/IAS 55th Industrial and Commercial Power Systems Technical Conference (I&CPS) Pub Date : 2019-05-01 DOI: 10.1109/ICPS.2019.8733348

Long Zhao, I. Matsuo, Yuhao Zhou, Weijen Lee

{"title":"Design of an Industrial IoT-Based Monitoring System for Power Substations","authors":"Long Zhao, I. Matsuo, Yuhao Zhou, Weijen Lee","doi":"10.1109/ICPS.2019.8733348","DOIUrl":"https://doi.org/10.1109/ICPS.2019.8733348","url":null,"abstract":"The Internet of Things (IoT) concept allows objects to share data through wired or wireless connections for communication purposes. The Industrial Internet of Things (IIoT) is an extended concept of IoT that refers to an integration of data acquisition, communication, and processing on a real-time network. Currently, IIoT has been involved with the development of smart grids in many applications. As the operation of power systems is extremely time-critical, low-latency communication needs to be considered for most control and monitoring applications. Real-time capability of IoT is considered as a key feature for monitoring and control applications of power systems. Therefore, system operators can use the real-time monitoring system to provide better decisions for both technical and financial-related matters. In this paper, a high-speed IIoT-based monitoring system with recording functions is developed and implemented for a power system substation. Due to the high reliability and processing speed of FPGAs, an FPGA-embedded controller is adopted in this system. The IoT platform also provides remote visualization for system operators in real time. This paper mainly aims to provide a practical application that was implemented and tested in a real power substation. The system incorporates the features of an IoT platform with the needs of high-speed real-time applications while using a single high-resolution time source as the reference for both steady-state and transient conditions.","PeriodicalId":160476,"journal":{"name":"2019 IEEE/IAS 55th Industrial and Commercial Power Systems Technical Conference (I&CPS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124848432","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: 34

Solar PV Power Plant Underground Cable Sizing Case Study 太阳能光伏电站地下电缆选型案例研究

2019 IEEE/IAS 55th Industrial and Commercial Power Systems Technical Conference (I&CPS) Pub Date : 2019-05-01 DOI: 10.1109/ICPS.2019.8733342

C. Bates, Pk Sen

引用次数: 0

Feasibility Analysis of Different Energy Storage Systems for Solar Road Lighting Systems 太阳能道路照明系统不同储能系统的可行性分析

2019 IEEE/IAS 55th Industrial and Commercial Power Systems Technical Conference (I&CPS) Pub Date : 2019-05-01 DOI: 10.1109/ICPS.2019.8733381

Suntiti Yoomak, A. Ngaopitakkul

{"title":"Feasibility Analysis of Different Energy Storage Systems for Solar Road Lighting Systems","authors":"Suntiti Yoomak, A. Ngaopitakkul","doi":"10.1109/ICPS.2019.8733381","DOIUrl":"https://doi.org/10.1109/ICPS.2019.8733381","url":null,"abstract":"This study investigates and analyses the feasibility of different energy storage systems for solar road lighting systems. The energy storage systems used in this study are divided into two cases, namely homogenous energy storage system (lead-acid (LA) batteries, lithium-ion (LI) batteries, and ultracapacitors (UCs)) and hybrid energy storage systems (leadacid batteries with ultracapacitors (LA and UC) and lithium-ion batteries with ultracapacitors (LI and UC)). Various solar power schemes are implemented based on stable and unstable solar irradiance conditions using an experimental setup. Economic analysis of the solar road lighting systems is performed based on the presented energy storage systems using discounted payback period (DPP), net present value (NPV), and internal rate of return (IRR). The installation of energy storage systems with individual and central systems for the solar road lighting system is also discussed. Results show that LA batteries, LI batteries, and UCs yielded satisfactory active power quality for effective charging in all ranges of solar irradiance. However, the lifetimes of battery devices are degraded during dynamic active power charging. To overcome this shortcoming, hybrid energy storage systems are proposed using batteries and UCs. The use of LA batteries yields the lowest installation cost. However, LI batteries offer the best economic viability in the long term. The cost of UCs is too high to be used as an energy storage system for solar road lighting systems. However, the use of appropriate proportions of UCs with batteries to reduce current and active power fluctuations for charging the batteries is economically viable.","PeriodicalId":160476,"journal":{"name":"2019 IEEE/IAS 55th Industrial and Commercial Power Systems Technical Conference (I&CPS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130323951","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: 9

Analysis of Lightning Transients in a Commercial Building Using the PEEC Method 基于PEEC方法的商业建筑雷电瞬变分析

2019 IEEE/IAS 55th Industrial and Commercial Power Systems Technical Conference (I&CPS) Pub Date : 2019-05-01 DOI: 10.1109/ICPS.2019.8733339

Zhe Li, Hongcai Chen, Yi Wu, Ya-ping Du, Yang Zhang

引用次数: 3

Electrical Safety of Resonant Grounding 谐振接地的电气安全

2019 IEEE/IAS 55th Industrial and Commercial Power Systems Technical Conference (I&CPS) Pub Date : 2019-05-01 DOI: 10.1109/ICPS.2019.8733369

Massimo Mitolo, M. Tartaglia, G. Zizzo

引用次数: 1