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Fault-tolerant topology of a grid-connected PV inverter coupled by a Scott transformer 斯科特变压器耦合并网光伏逆变器的容错拓扑
2012 10th International Power & Energy Conference (IPEC) Pub Date : 2012-11-01 DOI: 10.1109/ASSCC.2012.6523306
Mai Tuan Dat, T. Wijnhoven, J. Driesen
{"title":"Fault-tolerant topology of a grid-connected PV inverter coupled by a Scott transformer","authors":"Mai Tuan Dat, T. Wijnhoven, J. Driesen","doi":"10.1109/ASSCC.2012.6523306","DOIUrl":"https://doi.org/10.1109/ASSCC.2012.6523306","url":null,"abstract":"A grid-connected photovoltaic(PV) power plant is mainly based on power electronics equipments which are considered as the most vulnerable parts in a PV system. In order to increase the reliability of modular grid-connected PV panel, a solution by using a Scott transformer is presented to reduce the number of switches and to continuously operate the PV system in case of switch-failures of the power converter. The three-phase type PV inverter is analyzed in the normal and fault-operation. The simulation has shown that fault tolerance can be achieved with the proposed system configuration to give a redundancy of power switches in an Integrated power electronic module. Index Terms-Power converter, Scott transformer, redundant components, fault-tolerant, grid-connected inverter, grid-tie, reference frame, Clarke transformation.","PeriodicalId":341348,"journal":{"name":"2012 10th International Power & Energy Conference (IPEC)","volume":"204 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114070440","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
A hybrid PLC-WiMAX based communication system for advanced metering infrastructure 基于PLC-WiMAX的混合通信系统，用于先进的计量基础设施
2012 10th International Power & Energy Conference (IPEC) Pub Date : 2012-11-01 DOI: 10.1109/ASSCC.2012.6523298
B. Sivaneasan, N. Kandasamy, P. L. So, Erry Gunawan
{"title":"A hybrid PLC-WiMAX based communication system for advanced metering infrastructure","authors":"B. Sivaneasan, N. Kandasamy, P. L. So, Erry Gunawan","doi":"10.1109/ASSCC.2012.6523298","DOIUrl":"https://doi.org/10.1109/ASSCC.2012.6523298","url":null,"abstract":"This paper proposes a new communication system for advanced metering infrastructure (AMI) in the Intelligent Energy System pilot project at Nanyang Technological University, Singapore. The proposed communication system utilizes a hybrid power line communications (PLC) - Worldwide Interoperability for Microwave Access (WiMAX) technology for the last mile and back-haul communications respectively. The PLC-based last mile communication employs a new packet routing protocol to overcome the significant signal attenuation along the power lines. The WiMAX-based communication operates on the 3.5GHz licensed band satisfying the Stanford University Interim (SUI) model for path loss prediction. The performance of the proposed AMI in terms of data collection delay and throughput under impulsive noise interference is analyzed. The proposed AMI completes the data collection of 1250 meter units in less than 210s. The proposed AMI achieves 100% throughput for Pg > 0.5 in environments without impulsive noise interference. It is also able to achieve less than a 5% drop in throughput for light and moderate impulsive noise environments.","PeriodicalId":341348,"journal":{"name":"2012 10th International Power & Energy Conference (IPEC)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124030323","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
Impacts of plug-in electric vehicles on distribution networks 插电式电动汽车对配电网的影响
2012 10th International Power & Energy Conference (IPEC) Pub Date : 2012-11-01 DOI: 10.1109/ASSCC.2012.6523249
Chenxiang Zhang, F. Wen, Yusheng Xue, G. Ledwich, J. Lei
{"title":"Impacts of plug-in electric vehicles on distribution networks","authors":"Chenxiang Zhang, F. Wen, Yusheng Xue, G. Ledwich, J. Lei","doi":"10.1109/ASSCC.2012.6523249","DOIUrl":"https://doi.org/10.1109/ASSCC.2012.6523249","url":null,"abstract":"As a good solution to the shortage and environmental unfriendliness of fossil fuels, plug-in electric vehicles (PEVs) attract much interests of the public. To investigate the problems caused by the integration of numerous PEVs, a lot of research work has been done on the grid impacts of PEVs in aspects including thermal loading, voltage regulation, transformer loss of life, unbalance, losses, and harmonic distortion levels. This paper surveys the-stateof-the-art of the research in this area and outline three possible measures for a power grid company to make full use of PEVs.","PeriodicalId":341348,"journal":{"name":"2012 10th International Power & Energy Conference (IPEC)","volume":"260 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123690028","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 operating process of DC De-icer and its De-icing efficiency in China Southern Power Grid 南方电网直流除冰器运行过程及除冰效率研究
2012 10th International Power & Energy Conference (IPEC) Pub Date : 2012-11-01 DOI: 10.1109/ASSCC.2012.6523333
Yanzhou Chen, Qi Wang, Baoquan Gu, Yanlei Cai, F. Wen
{"title":"Research on the operating process of DC De-icer and its De-icing efficiency in China Southern Power Grid","authors":"Yanzhou Chen, Qi Wang, Baoquan Gu, Yanlei Cai, F. Wen","doi":"10.1109/ASSCC.2012.6523333","DOIUrl":"https://doi.org/10.1109/ASSCC.2012.6523333","url":null,"abstract":"The China Southern Power Grid (CSG) has installed 6 sets of DC-deicer on its backbone transmission grid since the ice disaster in 2008, among which the DC-deicer in Gaopo substation of Gao-Zhao ±500kV DC transmission lines is the first OPGW deicer in CSG. Most of the existing DC-deicing research work concerns on the analyzing of transmission lines without considering the installation of de-icing switches. However, the icing problem of overhead ground lines has become the secondary influencing factor in the causation of power system fault during winter. Given this background, the general situation of the 6 sets of DC de-icer is presented and the de-icing operating process and its efficiency after the installation of de-icing switches are studied. Finally, suggestions are given on basis of the research.","PeriodicalId":341348,"journal":{"name":"2012 10th International Power & Energy Conference (IPEC)","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122619725","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
Optimal scheduling of conveyor belt systems under Critical Peak Pricing 临界峰值定价下输送带系统的最优调度
2012 10th International Power & Energy Conference (IPEC) Pub Date : 2012-11-01 DOI: 10.1109/ASSCC.2012.6523285
T. Mathaba, X. Xia, Jiangfeng Zhang
{"title":"Optimal scheduling of conveyor belt systems under Critical Peak Pricing","authors":"T. Mathaba, X. Xia, Jiangfeng Zhang","doi":"10.1109/ASSCC.2012.6523285","DOIUrl":"https://doi.org/10.1109/ASSCC.2012.6523285","url":null,"abstract":"We consider the optimal scheduling of conveyor belts (CB) under Critical Peak Pricing (CPP) tariff. The operation of the belts is optimized using Model Predictive Control (MPC). The paper assesses the effects of MPC prediction horizon and storage size on the load profile, as well as the resulting energy cost. The results show that MPC is suitable for CB scheduling under CPP. The significance of storage size and the length of MPC prediction horizon in achieving cost saving is demonstrated.","PeriodicalId":341348,"journal":{"name":"2012 10th International Power & Energy Conference (IPEC)","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124723359","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: 17
Multi agent system based wide area protection against cascading events 基于多智能体的广域级联事件防护系统
2012 10th International Power & Energy Conference (IPEC) Pub Date : 2012-11-01 DOI: 10.1109/ASSCC.2012.6523309
Zhou Liu, Zhe Chen, Chengxi Liu, Haishun Sun, Yanting Hu
{"title":"Multi agent system based wide area protection against cascading events","authors":"Zhou Liu, Zhe Chen, Chengxi Liu, Haishun Sun, Yanting Hu","doi":"10.1109/ASSCC.2012.6523309","DOIUrl":"https://doi.org/10.1109/ASSCC.2012.6523309","url":null,"abstract":"In this paper, a multi-agent system based wide area protection scheme is proposed in order to prevent long term voltage instability induced cascading events. The distributed relays and controllers work as a device agent which not only executes the normal function automatically but also can be modified to fulfill the extra function according to external requirements. The control center is designed as a highest level agent in MAS to coordinate all the lower agents to prevent the system wide voltage disturbance. A hybrid simulation platform with MATLAB and RTDS is set up to demonstrate the effectiveness of proposed protection strategy. The simulation results indicate that the proposed multi agent control system can effectively coordinate the distributed relays and controllers to prevent the long term voltage instability induced cascading events.","PeriodicalId":341348,"journal":{"name":"2012 10th International Power & Energy Conference (IPEC)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123131900","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: 15
The energy management according to ISO 50001:2011 standard and AEMAS scheme feasibly implement in Viet Nam 根据ISO 50001:2011标准和AEMAS方案的能源管理在越南可行地实施
2012 10th International Power & Energy Conference (IPEC) Pub Date : 2012-11-01 DOI: 10.1109/ASSCC.2012.6523280
H. Quyen, T. T. Le
{"title":"The energy management according to ISO 50001:2011 standard and AEMAS scheme feasibly implement in Viet Nam","authors":"H. Quyen, T. T. Le","doi":"10.1109/ASSCC.2012.6523280","DOIUrl":"https://doi.org/10.1109/ASSCC.2012.6523280","url":null,"abstract":"This paper presents the model of energy management standard ISO 50001:2011 and the upgraded version of its model - AEMAS. The application of the sustainable energy management model helps increasing the efficiency in energy management aimed at reducing production energy costs and improves a competitiveness of products. The paper also analyzes the current status of implementation of energy management, the advantage and disadvantage to implementing ISO 50001 and AEMAS model in the Viet Nam present economics context. Research results show the suitability that the model can be deployed immediately and proposed the roadmap of 10 years to deploy the ISO 50001 standards and the AEMAS as mass.","PeriodicalId":341348,"journal":{"name":"2012 10th International Power & Energy Conference (IPEC)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126347061","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 single-switch high gain quadratic boost converter based on voltage-lift-technique 基于电压提升技术的单开关高增益二次升压变换器
2012 10th International Power & Energy Conference (IPEC) Pub Date : 2012-11-01 DOI: 10.1109/ASSCC.2012.6523241
Shiyu Zhang, Jianping Xu, Ping Yang
{"title":"A single-switch high gain quadratic boost converter based on voltage-lift-technique","authors":"Shiyu Zhang, Jianping Xu, Ping Yang","doi":"10.1109/ASSCC.2012.6523241","DOIUrl":"https://doi.org/10.1109/ASSCC.2012.6523241","url":null,"abstract":"In this paper, based on the traditional voltage-lift-technique, a modified voltage-lift cell is proposed. A single-switch high gain quadratic boost converter is obtained by applying the modified voltage-lift cell to quadratic boost converter, the voltage gain of the converter is improved and the switch voltage stress of the converter is also reduced. The operation principle of the quadratic boost converter with modified voltage-lift cell is analyzed. Compared with quadratic boost converter and the other single-switch high gain boost converter, the voltage gain of quadratic boost converter with modified voltage-lift cell is highest, and the switch voltage stress of quadratic boost converter with modified voltage-lift cell is lowest. Experimental results are presented to verify the theoretical analysis results.","PeriodicalId":341348,"journal":{"name":"2012 10th International Power & Energy Conference (IPEC)","volume":"SE-13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126578787","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: 48
Simplified loop-type fuzzy feeder models for distribution system calculations 用于配电系统计算的简化环型模糊馈线模型
2012 10th International Power & Energy Conference (IPEC) Pub Date : 2012-11-01 DOI: 10.1109/ASSCC.2012.6523253
Shyi-Wen Wang
{"title":"Simplified loop-type fuzzy feeder models for distribution system calculations","authors":"Shyi-Wen Wang","doi":"10.1109/ASSCC.2012.6523253","DOIUrl":"https://doi.org/10.1109/ASSCC.2012.6523253","url":null,"abstract":"Based on fuzzy set theory, this paper presents loop-type fuzzy feeder models to simplify complicated distribution system analysis. These fuzzy models are formulated using lumped distribution transformer(s) and lumped load(s) to represent nonuniformly distributed loads, which vary by time and type of day and relate to voltage, along a feeder. These equivalent models are developed to accurately simulate first, the maximum voltage drop from substation to the load points of a given loop-type feeder, and then the total copper and core losses. Finally a hybrid model is developed to simulate both maximum voltage drop and losses accurately. A physical loop-type feeder is used to demonstrate the correctness of these proposed fuzzy feeder models. The simulation results show that it is possible to reduce many complex loop-type feeders to simple equivalent models in the study of feeder voltage profiles and losses with negligible error.","PeriodicalId":341348,"journal":{"name":"2012 10th International Power & Energy Conference (IPEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130472729","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
AC voltage sensorless control of battery charger system in electric vehicle applications 交流电压无传感器控制在电动汽车电池充电系统中的应用
2012 10th International Power & Energy Conference (IPEC) Pub Date : 2012-11-01 DOI: 10.1109/ASSCC.2012.6523321
Cong-Long Nguyen, Hong‐Hee Lee
{"title":"AC voltage sensorless control of battery charger system in electric vehicle applications","authors":"Cong-Long Nguyen, Hong‐Hee Lee","doi":"10.1109/ASSCC.2012.6523321","DOIUrl":"https://doi.org/10.1109/ASSCC.2012.6523321","url":null,"abstract":"This paper presents an effective control scheme for an electric vehicle battery charger where a symmetrical bridgeless power factor-corrected converter and a buck converter are cascaded. Both converters have been popular in industries because of their high efficiency, low cost, and compact size, hence combining these two converters makes the overall battery charging system strongly efficient. Moreover, this charger topology can operate under universal input voltage condition and attain a desired battery voltage and charging current without any ripple. In order to reduce the system cost, an estimating ac input voltage technique is introduced, which especially does not require the converter component information and therefore it is robust to the circuit parameters variation. Additionally, by adopting a duty ratio feed-forward path in current control loop, a unity input power factor and zero input current harmonic are achieved. The feasibility and practical value of the proposed approach are verified by simulation and experimental results.","PeriodicalId":341348,"journal":{"name":"2012 10th International Power & Energy Conference (IPEC)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131918857","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
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