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2014 International Electrical Engineering Congress (iEECON)最新文献

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Power electronics-based energy storages: A key component for Smart Grid technology 基于电力电子的能量存储:智能电网技术的关键组成部分
2014 International Electrical Engineering Congress (iEECON) Pub Date : 2014-03-19 DOI: 10.1109/IEECON.2014.6925979
S. Sirisukprasert
{"title":"Power electronics-based energy storages: A key component for Smart Grid technology","authors":"S. Sirisukprasert","doi":"10.1109/IEECON.2014.6925979","DOIUrl":"https://doi.org/10.1109/IEECON.2014.6925979","url":null,"abstract":"Research works regarding energy storage devices incorporated with power electronics circuit are presented in this paper. Since Smart Grid concept was first initiated, it has been well known that one of the key solutions is “energy storages”, which can successfully support in both power and energy applications. Previous research shows that power electronics technology can further enhance the performance of the energy storages to meet such challenge requirement. Recently, several needs for this technology, i.e. energy storage material, power converter topology, energy management and anchor service development, have been continuously proposed. Meanwhile, battery and ultra-capacitors have become a trend to be promising energy storages for smart power distribution networks. This paper starts with the dc-Link voltage optimization technique for SOC balancing control for battery energy storage systems based on cascaded multilevel converters. A real power exchange techniques by a D-STATCOM with ultra-capacitors is then presented. Finally, to enhance energy storage utilization planning, the intermittent power mitigation strategy and energy capacity reduction technique for BESS employed in a power network with renewable energy distributed generations is explained.","PeriodicalId":306512,"journal":{"name":"2014 International Electrical Engineering Congress (iEECON)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128118276","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: 13
A decentralized distribution power system restoration by using multi-agent Approach 基于多智能体方法的分布式配电系统恢复
2014 International Electrical Engineering Congress (iEECON) Pub Date : 2014-03-19 DOI: 10.1109/IEECON.2014.6925838
T. Nagata, K. Okamoto
{"title":"A decentralized distribution power system restoration by using multi-agent Approach","authors":"T. Nagata, K. Okamoto","doi":"10.1109/IEECON.2014.6925838","DOIUrl":"https://doi.org/10.1109/IEECON.2014.6925838","url":null,"abstract":"This paper proposes a multi-agent approach to decentralized distribution power system restoration. So far, numerous studies have been conducted on power system restoration problems. From the view point of the system structures, these researches can be divided into two categories: centralized systems and decentralized systems. In this study, we have solved the distribution power system restoration problem by using multi-agent approach, which is categorized in the distributed approach. The solved solutions have been compared with the solutions which were solved by the mathematical programming approach. From the simulation results, it can be seen the proposed restoration method could reach the right solution by making use of only local information. The solution quality is equivalent to the quality of the centralized system. This means that the proposed multi-agent restoration system is a promising approach to more large-scale distribution network.","PeriodicalId":306512,"journal":{"name":"2014 International Electrical Engineering Congress (iEECON)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133034464","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: 12
An improvement of electric vehicle data updating time using Fuzzy logic 基于模糊逻辑的电动汽车数据更新时间改进
2014 International Electrical Engineering Congress (iEECON) Pub Date : 2014-03-19 DOI: 10.1109/IEECON.2014.6925877
Settha Tangkawanit, Krisana Wataniyanon, S. Kanprachar
{"title":"An improvement of electric vehicle data updating time using Fuzzy logic","authors":"Settha Tangkawanit, Krisana Wataniyanon, S. Kanprachar","doi":"10.1109/IEECON.2014.6925877","DOIUrl":"https://doi.org/10.1109/IEECON.2014.6925877","url":null,"abstract":"Electric Vehicle is currently a type of vehicles available in public which is used for mass transportation between places. Unpredictable arrival time of the electric vehicle is a problem that can be overcome by having a display showing the incoming time of the vehicle at the bus stop. However, the information about the arrival time has to be updated frequently at the bus stop, resulting in a large amount of data transfer between the server and the bus stop. To reduce the amount of data the updating time has to be varied adaptively. It is shown that using Fuzzy logic for determining the updating time, a half of data transferred can be reduced while keeping the timing error in the acceptable range.","PeriodicalId":306512,"journal":{"name":"2014 International Electrical Engineering Congress (iEECON)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130359625","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 Study of energy loss in LiFePO4 battery-balancing schemes for electric vehicle applications 电动汽车用磷酸铁锂电池平衡方案的能量损失研究
2014 International Electrical Engineering Congress (iEECON) Pub Date : 2014-03-19 DOI: 10.1109/IEECON.2014.6925885
Adisorn Amtip, T. Phatrapornnant, C. Nuthong, A. Kaewpunya
{"title":"A Study of energy loss in LiFePO4 battery-balancing schemes for electric vehicle applications","authors":"Adisorn Amtip, T. Phatrapornnant, C. Nuthong, A. Kaewpunya","doi":"10.1109/IEECON.2014.6925885","DOIUrl":"https://doi.org/10.1109/IEECON.2014.6925885","url":null,"abstract":"High energy density LiFePO4 battery plays an important role in the EV application. Due to strictly charging requirement, battery balancing is a necessary function in a battery management system (BMS) for charging this type of battery. Normally, there are two types of battery balancing circuit, i.e. active and passive balancing circuit. Because of simplicity, a passive circuit is chosen. Technically, passive balancing has energy loss while batteries are balancing. This research is focused on exploring three kinds of passive-balancing schemes about energy loss and at various conditions e.g. considering at balancing current or state of charge among all cells (SOCmax - SOCmin). The simulation results show that the different balancing schemes do not have significant effect on energy loss.","PeriodicalId":306512,"journal":{"name":"2014 International Electrical Engineering Congress (iEECON)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114382770","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
Power electronics roles in Thailand smart grid 电力电子在泰国智能电网中的作用
2014 International Electrical Engineering Congress (iEECON) Pub Date : 2014-03-19 DOI: 10.1109/IEECON.2014.6925978
S. Khomfoi
{"title":"Power electronics roles in Thailand smart grid","authors":"S. Khomfoi","doi":"10.1109/IEECON.2014.6925978","DOIUrl":"https://doi.org/10.1109/IEECON.2014.6925978","url":null,"abstract":"Power electronics roles in Thailand smart grid applications are discussed in this paper. Smartgrid is one of revolution technologies in electrical power system. There are three important roles concerning power electronics: renewable energy resource interface system, energy efficiency and reliability and stability. Power electronics in high power application is a key technology to develop a next generation of electrical energy system for supporting the trends of renewable energy interface, energy efficiency and electrical system stability and reliability. Promising smart grid technologies and researches, particularly in Thailand, influenced by power electronics are presented.","PeriodicalId":306512,"journal":{"name":"2014 International Electrical Engineering Congress (iEECON)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123301057","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
Distributive wireless network resource allocation with nash equilibrium and internal-regret-learning of non-stationary actions 基于纳什均衡和非平稳行为内后悔学习的分布式无线网络资源分配
2014 International Electrical Engineering Congress (iEECON) Pub Date : 2014-03-19 DOI: 10.1109/IEECON.2014.6925916
Grit Monrat, W. Kumwilaisak, P. Saengudomlert
{"title":"Distributive wireless network resource allocation with nash equilibrium and internal-regret-learning of non-stationary actions","authors":"Grit Monrat, W. Kumwilaisak, P. Saengudomlert","doi":"10.1109/IEECON.2014.6925916","DOIUrl":"https://doi.org/10.1109/IEECON.2014.6925916","url":null,"abstract":"This paper presents an iterative method in solving distributive wireless network resource allocation at the shared link with bottleneck. We propose a utility function considering trade-off between transmission bit rate and power efficiency. Given other players' transmission strategies, the utility function of each player is a concave function. Next, we formulate resource allocation problem as a game, where each player compete to use network resource under its own power constraint. All players utilize the Modified Internal-Regret-Learning algorithm to find their own transmission strategies, which finally form a Nash equilibrium point. The convergence and rate of convergence of the proposed algorithm are proven. Then, we study the results of distributive resource allocation under partial knowledge of other players' strategies. Simulations are conveyed to show the results of resource allocation under various setup environments.","PeriodicalId":306512,"journal":{"name":"2014 International Electrical Engineering Congress (iEECON)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125072820","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
An improvement of Wilkinson power divider with SITLs compensated microstrip bandstop filter 采用sitl补偿微带带阻滤波器对威尔金森功率分压器进行改进
2014 International Electrical Engineering Congress (iEECON) Pub Date : 2014-03-19 DOI: 10.1109/IEECON.2014.6925946
Ravee Phromloungsri
{"title":"An improvement of Wilkinson power divider with SITLs compensated microstrip bandstop filter","authors":"Ravee Phromloungsri","doi":"10.1109/IEECON.2014.6925946","DOIUrl":"https://doi.org/10.1109/IEECON.2014.6925946","url":null,"abstract":"This paper presents a simple technique to improve the performance of Wilkinson power divider by using step-impedance transmission line (SITLs) compensated microstrip bandstop filter. The proposed power divider employs a pair of SITLs compensated bandstop filters to replace the ordinary 70.7 Ohm quarter-wavelength transmission lines. The main objective of employing the bandpass filters incorporated in the power divider structure is to suppress the spurious response at the 2nd harmonic frequency. Simulated and measured results at 0.9 GHz operating frequency of the ordinary and the proposed Wilkinson power divider are compared. The measured results show that the insertion losses (S21, S31) are less than -4.2 dB while the return losses (S11, S22, S33) are less than -18.3 dB with more than 100% fractional bandwidth. Moreover, the proposed power divider can provide more than 24.5 dB suppression at the 2nd harmonic frequency.","PeriodicalId":306512,"journal":{"name":"2014 International Electrical Engineering Congress (iEECON)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123580769","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
Analysis of object buried in soil by using matrix pencil method 用矩阵笔法分析土中埋藏物
2014 International Electrical Engineering Congress (iEECON) Pub Date : 2014-03-19 DOI: 10.1109/IEECON.2014.6925933
Cheepchanok Yochanang, A. Boonpoonga, S. Burintramart
{"title":"Analysis of object buried in soil by using matrix pencil method","authors":"Cheepchanok Yochanang, A. Boonpoonga, S. Burintramart","doi":"10.1109/IEECON.2014.6925933","DOIUrl":"https://doi.org/10.1109/IEECON.2014.6925933","url":null,"abstract":"This paper presents an analysis of object buried in soil by using matrix pencil method. To analyze the object, simulations are performed through CST microwave studio. In simulations, the plane wave is transmitted to incident to an object buried in the soil. The late-time portion of a transient response scattered from the object is used to extract poles by using matrix pencil method. The pole group obtained from extraction of transient response of an object scenario of object is compared with that of an object in free space. The objects with different shapes are also considered. Moreover, we investigate the effect on poles of soil characteristic.","PeriodicalId":306512,"journal":{"name":"2014 International Electrical Engineering Congress (iEECON)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126317734","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
Linear analog current modulation on Light Emitting Diodes in Optical Wireless Communications 光无线通信中发光二极管的线性模拟电流调制
2014 International Electrical Engineering Congress (iEECON) Pub Date : 2014-03-19 DOI: 10.1109/IEECON.2014.6925848
Muhammad Sohail, K. Sterckx, P. Saengudomlert
{"title":"Linear analog current modulation on Light Emitting Diodes in Optical Wireless Communications","authors":"Muhammad Sohail, K. Sterckx, P. Saengudomlert","doi":"10.1109/IEECON.2014.6925848","DOIUrl":"https://doi.org/10.1109/IEECON.2014.6925848","url":null,"abstract":"Light Emitting Diodes (LEDs) have a wide range of applications, including illumination and data transmission in Optical Wireless Communications (OWC) systems. Analog modulation used in Orthogonal Frequency Division Multiplexing (OFDM) to overcome Inter-Symbol Interference (ISI) suffers from significant nonlinear distortion when voltage modulation is applied to LEDs. We investigate and analyze current modulation techniques on LEDs. Based on transconductance, MOSFET and BJT are used to transform an input signal voltage to a forward current. The performances of MOSFET-based and BJT-based transconductance circuits for current modulation are investigated and compared in terms of the linear current modulating range for LEDs.","PeriodicalId":306512,"journal":{"name":"2014 International Electrical Engineering Congress (iEECON)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129459188","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
Research on the effect of induced voltages in transient stability for multi circuit modeling on 500 kV EHV parallel transmission lines using a modified genetic algorithm 基于改进遗传算法的500kv超高压并联输电线路多回路建模中感应电压对暂态稳定的影响研究
2014 International Electrical Engineering Congress (iEECON) Pub Date : 2014-03-19 DOI: 10.1109/IEECON.2014.6925915
C. Jaipradidtham, Artiwat Naksuriyavong
{"title":"Research on the effect of induced voltages in transient stability for multi circuit modeling on 500 kV EHV parallel transmission lines using a modified genetic algorithm","authors":"C. Jaipradidtham, Artiwat Naksuriyavong","doi":"10.1109/IEECON.2014.6925915","DOIUrl":"https://doi.org/10.1109/IEECON.2014.6925915","url":null,"abstract":"This paper presents for modeling of the 500 kV EHV parallel transmission lines of multi circuit for the effect of induced voltages in transient stability due to a direct strokes using a modified genetic algorithm. The study of induction from the energized line with higher voltage(HV)level is more than the induction from the energized line with lower voltage level. Phase sequencing and transposition of lines, which changes the distance between the energized, effects the induced voltage in each section along the lines. The grounding of sending and receiving ends of energized lines causes high induced current in the circuit. The ground switch is connected to ground for off-service long transmission line to discharge to because the voltage in hotline circuit can induce to open line using a modified genetic algorithm. The voltage must be calculated along the distance of transmission line to fix the ground point connected by for safety of operator.","PeriodicalId":306512,"journal":{"name":"2014 International Electrical Engineering Congress (iEECON)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120941494","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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