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2015 IEEE International Telecommunications Energy Conference (INTELEC)最新文献

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Single-phase virtual synchronous generator without a dedicated synchronization unit 无专用同步装置的单相虚拟同步发电机
2015 IEEE International Telecommunications Energy Conference (INTELEC) Pub Date : 2015-10-01 DOI: 10.1109/INTLEC.2015.7572463
T. Younis, M. Ismeil, M. Orabi, M. A. Sayed, T. Takeshita
{"title":"Single-phase virtual synchronous generator without a dedicated synchronization unit","authors":"T. Younis, M. Ismeil, M. Orabi, M. A. Sayed, T. Takeshita","doi":"10.1109/INTLEC.2015.7572463","DOIUrl":"https://doi.org/10.1109/INTLEC.2015.7572463","url":null,"abstract":"In this paper, a single-phase self-synchronized inverter that mimics synchronous generators (Synchronverter) without a dedicated synchronization unit is investigated. It offers a mechanism for power systems to control distributed renewable energy sources. It can synchronize itself with the grid before connection and track the grid frequency very well after connection without a phase-locked loop (PLL). Removing the PLL from the single phase inverter improves the real power tracking performance, reduces the development cost and improves the software reliability.","PeriodicalId":211948,"journal":{"name":"2015 IEEE International Telecommunications Energy Conference (INTELEC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128694616","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
Simple cost function and low calculations MPC algorithm for qZSI 简单的代价函数和低计算量的MPC算法
2015 IEEE International Telecommunications Energy Conference (INTELEC) Pub Date : 2015-10-01 DOI: 10.1109/INTLEC.2015.7572391
Abualkasim Bakeer, M. Ismeil, M. Orabi
{"title":"Simple cost function and low calculations MPC algorithm for qZSI","authors":"Abualkasim Bakeer, M. Ismeil, M. Orabi","doi":"10.1109/INTLEC.2015.7572391","DOIUrl":"https://doi.org/10.1109/INTLEC.2015.7572391","url":null,"abstract":"Recently, Model Predictive Controller (MPC) becomes the most attractive control in power electronics and drives applications. It is incorporated in Z-Source Inverter family (ZSI) where each of capacitor voltage, inductor current and output load currents could be controlled at their setting points' values. In this paper, a proposed algorithm for qSZI is introduced to simplify the system through reducing the number of calculations. The control decides the shoot through case without any need to check all the other possible switching states. The shoot through case roughly is optimized every two sampling periods. Thus, by the proposed strategy has achieved more than 57% improvement in the computational power compared with the oldest algorithm. Also, the cost function for the proposed algorithm consists of one weighting factor for the capacitor voltage without including the inductor current term in the main cost function. These improved features will enhance the performance of MPC with ZSI family. The suggested algorithm is investigated with the simulation results on the basis of Power Simulator (PSIM) software. Then, a prototype of qZSI is constructed on the laboratory and the experimental results using the digital signal processing (DSP) F28335 are given.","PeriodicalId":211948,"journal":{"name":"2015 IEEE International Telecommunications Energy Conference (INTELEC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123237196","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
Digitally proportional gain varying method for DC-DC converter DC-DC变换器的数字比例增益变化方法
2015 IEEE International Telecommunications Energy Conference (INTELEC) Pub Date : 2015-10-01 DOI: 10.1109/INTLEC.2015.7572335
Y. Furukawa, T. Shirakawa, F. Kurokawa, I. Colak
{"title":"Digitally proportional gain varying method for DC-DC converter","authors":"Y. Furukawa, T. Shirakawa, F. Kurokawa, I. Colak","doi":"10.1109/INTLEC.2015.7572335","DOIUrl":"https://doi.org/10.1109/INTLEC.2015.7572335","url":null,"abstract":"The purpose of this paper is to propose a digitally proportional gain varying method for dc-dc converter. In the proposed method, the proportional gain is set to a small value in the steady state and is changed to a large value over stability limit for only a short time in the transient state. Using the proposed method, the transient response can be improved while the dc-dc converter system is kept in stable. Compared with the conventional PID control, the undershoot and the convergence time are improved by 69% and 75%, respectively. Furthermore, the capacitance of output smoothing capacitor must be set to a large value to maintain the stability of system when the control gain is set to a very large value. However, that can be reduced because the very large gain is set for only a short time to improve the transient response in the proposed method. Therefore, the miniaturization of main circuit can be expected.","PeriodicalId":211948,"journal":{"name":"2015 IEEE International Telecommunications Energy Conference (INTELEC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121547240","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
Operation method of microgrid using the forecast method by neural network 采用神经网络预测方法的微电网运行方法
2015 IEEE International Telecommunications Energy Conference (INTELEC) Pub Date : 2015-10-01 DOI: 10.1109/INTLEC.2015.7572302
Masayoshi Koyama, T. Takeda, K. Yukita, Y. Goto, K. Ichiyanagi, T. Goda
{"title":"Operation method of microgrid using the forecast method by neural network","authors":"Masayoshi Koyama, T. Takeda, K. Yukita, Y. Goto, K. Ichiyanagi, T. Goda","doi":"10.1109/INTLEC.2015.7572302","DOIUrl":"https://doi.org/10.1109/INTLEC.2015.7572302","url":null,"abstract":"By constructing a small-scale microgrid, we have examined a control and operation method for the efficient use of distributed power generation. Thus far, the high-efficiency operation of distributed power introduced into grid has not been achieved. In this study, a method that operates a microgrid by predicting the PV output and electric power demand is proposed. Then, the effectiveness of this method is examined.","PeriodicalId":211948,"journal":{"name":"2015 IEEE International Telecommunications Energy Conference (INTELEC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124497625","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: 7
Basic experiment study on misalignment characteristic of electrical resonance coupling wireless power transfer 电共振耦合无线输电不对准特性的基础实验研究
2015 IEEE International Telecommunications Energy Conference (INTELEC) Pub Date : 2015-10-01 DOI: 10.1109/INTLEC.2015.7572434
H. Umegami, Masataka Ishihara, F. Hattori, M. Masuda, Masayoshi Yamamoto
{"title":"Basic experiment study on misalignment characteristic of electrical resonance coupling wireless power transfer","authors":"H. Umegami, Masataka Ishihara, F. Hattori, M. Masuda, Masayoshi Yamamoto","doi":"10.1109/INTLEC.2015.7572434","DOIUrl":"https://doi.org/10.1109/INTLEC.2015.7572434","url":null,"abstract":"This paper describes lateral misalignment characteristics of electrical resonance coupling wireless power transfer (ERC-WPT) from experimental points of view. A dead zone is an important factor for ERC-WPT because ERC-WPT cannot transfer electric power in the zone. Electrical coupling units that are composed of 2 electrodes lined up laterally have a dead zone. The dead zone exists near outer edge areas of the electrodes and certain distant areas.","PeriodicalId":211948,"journal":{"name":"2015 IEEE International Telecommunications Energy Conference (INTELEC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125683038","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
The EV charging system using module balancing method in V2G system 在V2G系统中采用模块平衡法的电动汽车充电系统
2015 IEEE International Telecommunications Energy Conference (INTELEC) Pub Date : 2015-10-01 DOI: 10.1109/INTLEC.2015.7572299
A. Ko, Do-Yun Kim, Il-Kuen Won, Chang-Hyun Shin, C. Won
{"title":"The EV charging system using module balancing method in V2G system","authors":"A. Ko, Do-Yun Kim, Il-Kuen Won, Chang-Hyun Shin, C. Won","doi":"10.1109/INTLEC.2015.7572299","DOIUrl":"https://doi.org/10.1109/INTLEC.2015.7572299","url":null,"abstract":"This paper presents the electric vehicle(EV) system using module balancing method in vehicle-to-grid(V2G) system. Since there are intrinsic discrepancies among batteries, the state of charge(SOC) of each battery after charging or discharging may not be the same. Consequently, the batteries are with different voltages during the charging and discharging process. As a result, over-charging or over-discharging may be happened to some of the batteries. To find a solution to this problem, this paper proposes EV charge system using module balancing method in V2G system. To confirm the validity of the proposed system, the simulation and experiment is performed by consist of three modules and dual active bridge(DAB) DC-DC converters.","PeriodicalId":211948,"journal":{"name":"2015 IEEE International Telecommunications Energy Conference (INTELEC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125995648","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
Energy management using a quick charger with storage battery for electric vehicles 电动汽车使用带蓄电池的快速充电器进行能量管理
2015 IEEE International Telecommunications Energy Conference (INTELEC) Pub Date : 2015-10-01 DOI: 10.1109/INTLEC.2015.7572443
T. Ishibashi, T. Shimakage, N. Takeuchi, T. Kikuchi, M. Nonogaki
{"title":"Energy management using a quick charger with storage battery for electric vehicles","authors":"T. Ishibashi, T. Shimakage, N. Takeuchi, T. Kikuchi, M. Nonogaki","doi":"10.1109/INTLEC.2015.7572443","DOIUrl":"https://doi.org/10.1109/INTLEC.2015.7572443","url":null,"abstract":"We developed and field-tested an electric vehicle quick charger (EVQC) with storage battery to suppress the lengthening of charging time while preventing a rise in a building's peak power usage caused by EV charging. This EVQC features a demand control technique that determines the amount of power to be used by the charger according to the amount of power used by the building. In addition, charging the storage battery of this EVQC with surplus power from a photovoltaic power generator installed on the roof of the building prevents the flow of power back to the utility grid. In this paper, we describe this demand control technique and report on the results obtained by a field test. We also propose a new battery-capacity estimation method using storage-battery charging/discharging data and show that the method can make estimations with good accuracy at an error rate of approximately 3%.","PeriodicalId":211948,"journal":{"name":"2015 IEEE International Telecommunications Energy Conference (INTELEC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115856250","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
Performance study of a Vanadium Redox Flow Battery (VRB) for use in green data centers 用于绿色数据中心的钒氧化还原液流电池(VRB)性能研究
2015 IEEE International Telecommunications Energy Conference (INTELEC) Pub Date : 2015-10-01 DOI: 10.1109/INTLEC.2015.7572368
R. Badrinarayanan, Zhang Yu, K. Tseng
{"title":"Performance study of a Vanadium Redox Flow Battery (VRB) for use in green data centers","authors":"R. Badrinarayanan, Zhang Yu, K. Tseng","doi":"10.1109/INTLEC.2015.7572368","DOIUrl":"https://doi.org/10.1109/INTLEC.2015.7572368","url":null,"abstract":"This paper analyses the parameter dependence during the charging process of a Vanadium Redox Flow Battery (VRB) for a system-aware green data center which has distributed sources of energy production and amenable to flexible load scheduling. One of the key features of a flow battery is the ability to control the flow rate and current during the charging process. The flexibility however has a direct effect on charging time and efficiency which calls for a detailed performance study with various modes of charging. An electrical model of a kW scale VRB having an operating SOC range of 15-85% is presented. The presented model considers a 15 cell battery with current range of 80-160 mA/cm-2, overall membrane area of 780 cm2 and a flow rate range of 2-6 L/min. The results obtained show that there is a trade-off between the charging time and the energy capacity depending on the charging current and the flow rate. This work would aid the process of charging optimization by selecting various modes of operation of VRB, depending on the weightage given by the system for charging time or the energy efficiency.","PeriodicalId":211948,"journal":{"name":"2015 IEEE International Telecommunications Energy Conference (INTELEC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132196175","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
A bypass transfer method for UPS system 一种UPS系统旁路传输方法
2015 IEEE International Telecommunications Energy Conference (INTELEC) Pub Date : 2015-10-01 DOI: 10.1109/INTLEC.2015.7572497
Keisuke Nakano, O. Iyama
{"title":"A bypass transfer method for UPS system","authors":"Keisuke Nakano, O. Iyama","doi":"10.1109/INTLEC.2015.7572497","DOIUrl":"https://doi.org/10.1109/INTLEC.2015.7572497","url":null,"abstract":"This paper proposes a bypass transfer method without parallel feeding between utility power line and uninterruptible power supply (UPS). This system has ACSWs consists of a bi-directional thyristor and a magnetic contactor both utility power line and UPS line. The control board observes the condition of utility power and UPS to operate ACSWs. A proposed method has instantaneous interruptible period purposely. Therefore, it can be transferred to each line instantaneously without additional reactor or complex control system. Its effectiveness is verified through Experiment in a 4kW prototype. It can be transferred each other only 500μsec interruption without parallel feeding periods.","PeriodicalId":211948,"journal":{"name":"2015 IEEE International Telecommunications Energy Conference (INTELEC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129966895","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
Optimized battery charge control in PV-hybrid applications 优化电池充电控制在光伏混合应用
2015 IEEE International Telecommunications Energy Conference (INTELEC) Pub Date : 2015-10-01 DOI: 10.1109/INTLEC.2015.7572409
D. Wolf, K. Siemer, Jose Daza-Correa, Harald Munter
{"title":"Optimized battery charge control in PV-hybrid applications","authors":"D. Wolf, K. Siemer, Jose Daza-Correa, Harald Munter","doi":"10.1109/INTLEC.2015.7572409","DOIUrl":"https://doi.org/10.1109/INTLEC.2015.7572409","url":null,"abstract":"BTS sites are subject to constant cost pressure. Operational cost and especially Diesel consumption form ever increasing cost components. Here, photovoltaics (PV) is an effective measure to cut down operational cost and emissions for hybrid BTS sites. Often PV is integrated in a non-optimal way opening up room for improvements to the operational management. Three different advanced PV-hybrid operational management features are identified, developed and discussed. It can be shown that that significant fuel savings are generated by improving operational management and battery charge control. However, most of the identified fuel savings are at the cost of a higher number of generator starts. The optimal compromise within this trade-off is project specific and can be determined by dynamic modeling and simulation.","PeriodicalId":211948,"journal":{"name":"2015 IEEE International Telecommunications Energy Conference (INTELEC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127579446","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
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