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2012 Power Engineering and Automation Conference最新文献

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The analysis of harmonics damage on the reactive power compensation capacitors of Dongguan network 东莞电网无功补偿电容器谐波损伤分析
2012 Power Engineering and Automation Conference Pub Date : 2012-09-01 DOI: 10.1109/PEAM.2012.6612436
H. Dehua, Y. Tao
{"title":"The analysis of harmonics damage on the reactive power compensation capacitors of Dongguan network","authors":"H. Dehua, Y. Tao","doi":"10.1109/PEAM.2012.6612436","DOIUrl":"https://doi.org/10.1109/PEAM.2012.6612436","url":null,"abstract":"In order to know well about the system operating conditions, use FLUKE435 to carry out the harmonics survey of the Dongguan distribution network. The damage such as excess losses of the capacitors caused by different harmonics pollution were quantitative calculated based on the measured data. The results show that the harmonics cause great waste of energy and equipment resources.","PeriodicalId":130967,"journal":{"name":"2012 Power Engineering and Automation Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131080431","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
Wind turbine rotor-speed detection based on the equally accurate measurement 基于同等精度测量的风力机转子转速检测
2012 Power Engineering and Automation Conference Pub Date : 2012-09-01 DOI: 10.1109/PEAM.2012.6612444
Xiao-dan Wang, Lei Pan, Zhengjun Wang, E. Jian-xin
{"title":"Wind turbine rotor-speed detection based on the equally accurate measurement","authors":"Xiao-dan Wang, Lei Pan, Zhengjun Wang, E. Jian-xin","doi":"10.1109/PEAM.2012.6612444","DOIUrl":"https://doi.org/10.1109/PEAM.2012.6612444","url":null,"abstract":"This paper aims at enhancing the measurement accuracy of the wind turbine rotor-speed which presents a wide range from 0 to 1000 Rpm. A novel equally accurate measurement scheme utilizing standard reference clock signal and proximity switch detection is proposed. The theory derivation argues the error is reduced comparing to the traditional way, meanwhile the performance of accuracy and uncertainty of the system has been improved and the nonlinear characteristics has been decreased. Implementation method is introduced briefly. The experimental results show that the measurement accuracy of wind turbine rotor-speed has been increased by using this strategy, which could improve the control performance of the whole wind turbine system indirectly.","PeriodicalId":130967,"journal":{"name":"2012 Power Engineering and Automation Conference","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134496612","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
Application of PID control based on BP-NN for marine generator excitation system 基于BP-NN的PID控制在船用发电机励磁系统中的应用
2012 Power Engineering and Automation Conference Pub Date : 2012-09-01 DOI: 10.1109/PEAM.2012.6612457
Zheng Meng-di, Wu Xi-xiu, Qingwei Wei, Long Fei, Li Bo
{"title":"Application of PID control based on BP-NN for marine generator excitation system","authors":"Zheng Meng-di, Wu Xi-xiu, Qingwei Wei, Long Fei, Li Bo","doi":"10.1109/PEAM.2012.6612457","DOIUrl":"https://doi.org/10.1109/PEAM.2012.6612457","url":null,"abstract":"The PID controller of synchronous generator excitation plays an important role to control the field current in the marine power system. With the development of marine power system, conventional PID excitation controller can not meet the dynamic performance requirements of the running system. In order to overcome the shortcomings of the conventional PID controller, a PID controller of the marine generator excitation system based on BP neural network is proposed in this paper. Simulation results show that the marine generator excitation system of PID control based on BP neural network has excellent characteristics which are fast response, high steady-state accuracy and strong robustness. The system is suitable for variable needs of the modern marine synchronous generator excitation system.","PeriodicalId":130967,"journal":{"name":"2012 Power Engineering and Automation Conference","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115579580","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
Identification method for low-voltage Arc fault based on the loose combination of wavelet transformation and neural network 基于小波变换与神经网络松散结合的低压电弧故障识别方法
2012 Power Engineering and Automation Conference Pub Date : 2012-09-01 DOI: 10.1109/PEAM.2012.6612466
Haoying Gu, Feng Zhang, Zijun Wang, Qing Ning, Shiwen Zhang
{"title":"Identification method for low-voltage Arc fault based on the loose combination of wavelet transformation and neural network","authors":"Haoying Gu, Feng Zhang, Zijun Wang, Qing Ning, Shiwen Zhang","doi":"10.1109/PEAM.2012.6612466","DOIUrl":"https://doi.org/10.1109/PEAM.2012.6612466","url":null,"abstract":"According to statistics, the low-voltage arc fault has become one of the primary factors leading to electrical fires. It's the fact that traditional circuit protecting devices cannot detect arc fault effectively. Therefore, there are great practical significance and prospect of application in research on arc fault detecting technology. In this paper, the identification method for arc fault based on the loose combination of wavelet transformation and neural network is proposed. In order to realize the recognition of the testing samples of diverse loads, the high-frequency energy in each layer is obtained through decomposing the acquired current waveforms by wavelet, and then these properties are inputted into back-propagation (BP) neural network to constitute a loose wavelet neural network. The adaptive learning rate and momentum term are used to improve the learning speed. Two selecting schemes of nodes in input layer are compared, and the accuracy rate of better scheme reaches 95 percent. By using mean impact value method, the validity of the extracted characteristics in input layer is verified.","PeriodicalId":130967,"journal":{"name":"2012 Power Engineering and Automation Conference","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124586901","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
Active damping control of PMSG with LCL filter in tidal generation system 潮汐能发电系统LCL滤波器PMSG的主动阻尼控制
2012 Power Engineering and Automation Conference Pub Date : 2012-09-01 DOI: 10.1109/PEAM.2012.6612521
Luo Yaohua, D. Xiaoli, Xu Tie-yan, Lv Shijia
{"title":"Active damping control of PMSG with LCL filter in tidal generation system","authors":"Luo Yaohua, D. Xiaoli, Xu Tie-yan, Lv Shijia","doi":"10.1109/PEAM.2012.6612521","DOIUrl":"https://doi.org/10.1109/PEAM.2012.6612521","url":null,"abstract":"This paper has researched on the control strategy of PMSG direct-drive tidal generation system with LCL filter. Firstly, the model of PMSG (permanent magnet synchronous generator) with LCL filter is established in dq-frame, and then according to the analysis of the model, the equivalent circuit and admittance seen from the converter side in dq-frame is obtained. The bode figure shows that the LCL filter may resonance the harmonic current and even break the stability of whole system. One way to restrain the resonance is in parallel or in series a resistance with the capacitor in AC filters which is called passive damping. However, the physical resistance in passive damping will cause the energy loss. So an active damping strategy using a virtual resistance parallel with capacitor in LCL filter is proposed to restrain the resonance and reduce the stator current THD. Based on the active damping, the control system of PMSG is designed, in which the rotor speed is controlled and the unity power factor is realized. Finally, the simulation results have verified the effectiveness of the proposed control strategy.","PeriodicalId":130967,"journal":{"name":"2012 Power Engineering and Automation Conference","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123740709","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
Structural design of a universal and efficient demand-side management system for Smart Grid 智能电网通用高效需求侧管理系统的结构设计
2012 Power Engineering and Automation Conference Pub Date : 2012-09-01 DOI: 10.1109/PEAM.2012.6612414
P. Lei, Jiong Ma, P. Jin, Hao Lv, Lei Shen
{"title":"Structural design of a universal and efficient demand-side management system for Smart Grid","authors":"P. Lei, Jiong Ma, P. Jin, Hao Lv, Lei Shen","doi":"10.1109/PEAM.2012.6612414","DOIUrl":"https://doi.org/10.1109/PEAM.2012.6612414","url":null,"abstract":"A multi functional demand-side management (DSM) system is required to fully take advantage of the Smart Grid, which is a combination of metering, control, communication and other technologies. This report first gives an overview of the features, advantages, development obstacles and application prospects of the DSM technology and its potential use for the future “smart homes”. Then we describe the structural design of a universal and highly efficient DSM system, including communication modules for home area network and the Internet, local and remote control modules, and information collection and processing modules. This DSM system also takes advantage of the latest development in web and IT technologies including cloud computing and social networks, and will be accessible and controllable by smart phones using APPs. The advantages of the DSM system in promoting energy saving and combating climate change are also discussed.","PeriodicalId":130967,"journal":{"name":"2012 Power Engineering and Automation Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130962087","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: 8
Fault detection and location for MTDC combining wavelet analysis and travelling wave 结合小波分析和行波分析的MTDC故障检测与定位
2012 Power Engineering and Automation Conference Pub Date : 2012-09-01 DOI: 10.1109/PEAM.2012.6612510
Di Yu, Yawen Li, Yifeng Ding, Xuan Zhang
{"title":"Fault detection and location for MTDC combining wavelet analysis and travelling wave","authors":"Di Yu, Yawen Li, Yifeng Ding, Xuan Zhang","doi":"10.1109/PEAM.2012.6612510","DOIUrl":"https://doi.org/10.1109/PEAM.2012.6612510","url":null,"abstract":"Multi-terminal HVDC has been taken seriously for its economical and technological advantages. However, MTDC meets a bottleneck that the VSC, based on IGBT, is destructively vulnerable to the fault on DC side. Consequently How to fast detect and precisely locate them weighs much in MTDC fault clearing. A method combining wavelet analysis and travelling wave is proposed in this paper. We use wavelet packet analysis to detect the type of fault and find in which DC line the fault occurred, by building a one-to-one mapping from fault signal energy change to fault. The simulation in MATLAB/SIMULINK shows the idea is feasible. Afterwards a mathematical model of travelling wave is constructed to locate fault for farther accuracy, thus completing the DC side fault detection and location system in MTDC.","PeriodicalId":130967,"journal":{"name":"2012 Power Engineering and Automation Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131017340","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: 6
Applications of embedded HVDC in power system transmission 嵌入式直流输电在电力系统输电中的应用
2012 Power Engineering and Automation Conference Pub Date : 2012-09-01 DOI: 10.1109/PEAM.2012.6612531
Jicheng Yu, G. Karady, Lei Gu
{"title":"Applications of embedded HVDC in power system transmission","authors":"Jicheng Yu, G. Karady, Lei Gu","doi":"10.1109/PEAM.2012.6612531","DOIUrl":"https://doi.org/10.1109/PEAM.2012.6612531","url":null,"abstract":"High Voltage Direct Current (HVDC) Technology has been widely recognized advanced in power transmission. Classical HVDC has shown its advanced features in long distance bulk power delivery, submarine cable crossings, and asynchronous interconnections. Therefore, the new generation of technology, embedded HVDC, is further broadening the range of applications of HVDC transmission. The embedded HVDC is beneficial to all traditional occupations. Meanwhile, perspective novel applications, which are involved in offshore transmissions, infeed large urban areas, DC segment grid, and weak AC system connections, come into service. The installation of the embedded HVDC systems on the existing AC power grid may largely improve the transient stability and power flow oscillation damping factor of power transmission system.","PeriodicalId":130967,"journal":{"name":"2012 Power Engineering and Automation Conference","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131337653","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: 14
Impact of parameters of pantograph on the dynamics of pantograph-catenary and optimization of parameters 受电弓参数对受电弓接触网动力学的影响及参数优化
2012 Power Engineering and Automation Conference Pub Date : 2012-09-01 DOI: 10.1109/PEAM.2012.6612514
Jing Zhang, Jian Yang, Ruigang Song
{"title":"Impact of parameters of pantograph on the dynamics of pantograph-catenary and optimization of parameters","authors":"Jing Zhang, Jian Yang, Ruigang Song","doi":"10.1109/PEAM.2012.6612514","DOIUrl":"https://doi.org/10.1109/PEAM.2012.6612514","url":null,"abstract":"In order to investigate the dynamics of pantograph-catenary, the pantograph system dynamics model is established and numerical simulation of the model is carried out in this paper. On the known conditions of pantograph and catenary system, the current flow performance of pantograph and catenary is studied and the pantograph parameters are optimized.","PeriodicalId":130967,"journal":{"name":"2012 Power Engineering and Automation Conference","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126856461","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
The low voltage ride through anti over-speed control research of DFIG wind turbine DFIG风电机组低压行驶抗超速控制研究
2012 Power Engineering and Automation Conference Pub Date : 2012-09-01 DOI: 10.1109/PEAM.2012.6612445
Xu Jiayuan, Pan Lei
{"title":"The low voltage ride through anti over-speed control research of DFIG wind turbine","authors":"Xu Jiayuan, Pan Lei","doi":"10.1109/PEAM.2012.6612445","DOIUrl":"https://doi.org/10.1109/PEAM.2012.6612445","url":null,"abstract":"Through the constant development of wind energy technology, installed wind turbine capacity is higher and higher. It challenges the safe operation of the entire grid that Large-scale wind power access to power system. The low voltage ride through (LVRT) technology is a much hotter grid-connected problem of wind turbine, especially the over-speed problem of LVRT. In this paper, we focus on the method to solve the over-speed of LVRT. The over-speed fault reason of LVRT is analyzed in this paper, and through that we can find the suitable method to solve the problem. The feasibility of this method is proved by LVRT testing results in wind farm.","PeriodicalId":130967,"journal":{"name":"2012 Power Engineering and Automation Conference","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132127339","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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