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2011 International Conference on Electrical Machines and Systems最新文献

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Performance analysis on a novel brushless doubly fed machine with hybrid rotor structure 一种新型混合转子无刷双馈电机的性能分析
2011 International Conference on Electrical Machines and Systems Pub Date : 2011-11-15 DOI: 10.1109/ICEMS.2011.6073929
Xiuping Wang, Fengge Zhang, Qun Yang, Guangwei Liu
{"title":"Performance analysis on a novel brushless doubly fed machine with hybrid rotor structure","authors":"Xiuping Wang, Fengge Zhang, Qun Yang, Guangwei Liu","doi":"10.1109/ICEMS.2011.6073929","DOIUrl":"https://doi.org/10.1109/ICEMS.2011.6073929","url":null,"abstract":"In order to improve the coupling capability and operating performance of brushless doubly fed machine(BDFM), a novel hybrid rotor structure is designed in this paper, finite element analysis(FEA) indicates that this type of rotor has higher magnetic field coupling capability, more excellent no-load characteristic and better torque capability in comparison to traditional rotor structure. The conclusions obtained could provide theoretical foundation for optimization design of BDFM.","PeriodicalId":101507,"journal":{"name":"2011 International Conference on Electrical Machines and Systems","volume":"124 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125881446","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
DC link voltage balancing control of a three-phase cascade power regulation system with star connection 星形连接三相串级功率调节系统直流链路电压平衡控制
2011 International Conference on Electrical Machines and Systems Pub Date : 2011-11-15 DOI: 10.1109/ICEMS.2011.6073437
C. Wan, Geng Yang, H. Geng, Weiyang Wu
{"title":"DC link voltage balancing control of a three-phase cascade power regulation system with star connection","authors":"C. Wan, Geng Yang, H. Geng, Weiyang Wu","doi":"10.1109/ICEMS.2011.6073437","DOIUrl":"https://doi.org/10.1109/ICEMS.2011.6073437","url":null,"abstract":"DC link voltage balancing is very important for the reliable operation of H-bridge cascade power regulation system (PRS). This paper proposes a novel method to balance the three-phase DC link voltage for the star-connected cascade PRS, which is based on the negative sequence voltage injection. The algorithm is analyzed and the performance is compared with the method based on zero sequence voltage injection. The simulation results verify the theoretical analysis and the effectiveness of the proposed method.","PeriodicalId":101507,"journal":{"name":"2011 International Conference on Electrical Machines and Systems","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123548136","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
Analysis and detection of turbo-generator stator turn-to-turn fault with multi-loop method 汽轮发电机定子匝间故障的多回路分析与检测
2011 International Conference on Electrical Machines and Systems Pub Date : 2011-11-15 DOI: 10.1109/ICEMS.2011.6073682
Liu Mingji, Song Meihong, Diop. Samba, Wang Hongyu, Liu Yang
{"title":"Analysis and detection of turbo-generator stator turn-to-turn fault with multi-loop method","authors":"Liu Mingji, Song Meihong, Diop. Samba, Wang Hongyu, Liu Yang","doi":"10.1109/ICEMS.2011.6073682","DOIUrl":"https://doi.org/10.1109/ICEMS.2011.6073682","url":null,"abstract":"Turn-to-turn fault in the synchronous generator stator winding has been considered the most challenging one since the other types of stator winding related failures are usually the consequence of turn faults. In this paper we studied the turbo-generator in no load and load conditions and utilized the multi-loop method which can consider the asymmetric problem to detect the turn-to-turn fault of stator winding. The multi-loop model of the turbo-generator was established and the permeance analysis was used to calculate parameters of the model. The fault detection accuracy was improved by using the decomposition of wavelet analysis to detect the even harmonics in field current signal. The simulation results show that the stator turn-to-turn fault can be unambiguously detected from the field current signal.","PeriodicalId":101507,"journal":{"name":"2011 International Conference on Electrical Machines and Systems","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125335450","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
Optimal process control law of torque for interior permanent magnet synchronous machine in pure electric vehicles 纯电动汽车内嵌式永磁同步电机转矩优化过程控制规律
2011 International Conference on Electrical Machines and Systems Pub Date : 2011-11-15 DOI: 10.1109/ICEMS.2011.6073547
Huawei Zhou, X. Wen, Jian Zhang, Feng Zhao, X. Zhuang, Li Zhao
{"title":"Optimal process control law of torque for interior permanent magnet synchronous machine in pure electric vehicles","authors":"Huawei Zhou, X. Wen, Jian Zhang, Feng Zhao, X. Zhuang, Li Zhao","doi":"10.1109/ICEMS.2011.6073547","DOIUrl":"https://doi.org/10.1109/ICEMS.2011.6073547","url":null,"abstract":"There are severe jerks while vehicle starts up sharply or accelerator steps, especially in AMT shifting. In order to guarantee ideal dynamic performance of torque response and ride comfort of vehicles, an optimal process control law of torque is proposed in this paper. The results of simulation and experiments demonstrate that the torque control law makes the shock intensity less and improves the ride comfort.","PeriodicalId":101507,"journal":{"name":"2011 International Conference on Electrical Machines and Systems","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125433753","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
Photovoltaic maximum power point tracking without current sensor for module integrated converter 模块集成变流器无电流传感器的光伏最大功率点跟踪
2011 International Conference on Electrical Machines and Systems Pub Date : 2011-11-15 DOI: 10.1109/ICEMS.2011.6073396
Seong-Jin Kim, S. Moon, Do-Hyun Kim, Joung-Hu Park, Chan-Su Chung
{"title":"Photovoltaic maximum power point tracking without current sensor for module integrated converter","authors":"Seong-Jin Kim, S. Moon, Do-Hyun Kim, Joung-Hu Park, Chan-Su Chung","doi":"10.1109/ICEMS.2011.6073396","DOIUrl":"https://doi.org/10.1109/ICEMS.2011.6073396","url":null,"abstract":"In this paper, a simple maximum power point tracking (MPPT) method for series-connected DC-DC converter module of photovoltaic power conditioning systems (PCS) is proposed. This approach enables maximum power point (MPP) tracking control with the converter's output voltage information instead of calculating solar array power, which significantly simplifies the sensor network by removing current sensor. Furthermore, there is no multiplication process in the P&O algorithm to track the maximum power point because the power calculation is replaced by output voltage sensing. This simple MPPT control strategy can reduce the cost and size, and can be utilized with a low performance / low cost controller. For verification of the proposed control strategy, Zigbee (Xbee-pro) wireless communications and DSP's Series Communications Interface are utilized. Also series-connected hardware prototype with multiple photovoltaic modules was built and tested.","PeriodicalId":101507,"journal":{"name":"2011 International Conference on Electrical Machines and Systems","volume":"134 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116569168","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
Cross-synthesis of observer and controller for a two-mass uncertain system 双质量不确定系统观测器与控制器的交叉综合
2011 International Conference on Electrical Machines and Systems Pub Date : 2011-11-15 DOI: 10.1109/ICEMS.2011.6073789
S. Carriere, S. Caux, M. Fadel
{"title":"Cross-synthesis of observer and controller for a two-mass uncertain system","authors":"S. Carriere, S. Caux, M. Fadel","doi":"10.1109/ICEMS.2011.6073789","DOIUrl":"https://doi.org/10.1109/ICEMS.2011.6073789","url":null,"abstract":"The industrialists want a minimum of sensors to improve reliability and cost. Performances are then decreasing for systems with variable parameters or direct-drive. Moreover, flexibility in a such system has not to be neglected for an accurate control. This paper proposes solutions to quickly and accurately tune a control loop including LQ state feedback and Kalman observer. Both items are with special tuning matrices to increase insensivity to parameter variation. An evolutionary algorithm optimizes the command all over the variations underlining the benefits of a crossed synthesis. Experiments show that the stability and the performance are effectively maintained.","PeriodicalId":101507,"journal":{"name":"2011 International Conference on Electrical Machines and Systems","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122416563","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 multifunction testing system of small wind generator 小型风力发电机多功能测试系统
2011 International Conference on Electrical Machines and Systems Pub Date : 2011-11-15 DOI: 10.1109/ICEMS.2011.6073712
Ning Ma, Qinzhi Zhai
{"title":"A multifunction testing system of small wind generator","authors":"Ning Ma, Qinzhi Zhai","doi":"10.1109/ICEMS.2011.6073712","DOIUrl":"https://doi.org/10.1109/ICEMS.2011.6073712","url":null,"abstract":"This paper proposes an intelligent testing system for small wind generator based on an upper computer: by means of programming, the system drives variable frequency induction motor to simulate the operational state of wind turbine; next, the system measures input and output data from generator by two close data loops acquisition at the same time; ultimately, the system realizes calculating and display on measured generator performance at variable speed. The test result indicates that the system meets the requirement of imitation of the wind turbine and the main performance indexes' real-time detection of small wind generator under the laboratory environment, and provides high-performance equipment for accurate design, analysis and assessment of small wind generator under wind varying.","PeriodicalId":101507,"journal":{"name":"2011 International Conference on Electrical Machines and Systems","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122682348","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
A new algorithm to identify magnetizing inrush of converter transformers in HVDC transmission project 高压直流输电工程中换流变压器励磁涌流识别新算法
2011 International Conference on Electrical Machines and Systems Pub Date : 2011-11-15 DOI: 10.1109/ICEMS.2011.6073993
D. Bi, C. Feng, Zhen-hua Zhang, B. Ge, Xin He
{"title":"A new algorithm to identify magnetizing inrush of converter transformers in HVDC transmission project","authors":"D. Bi, C. Feng, Zhen-hua Zhang, B. Ge, Xin He","doi":"10.1109/ICEMS.2011.6073993","DOIUrl":"https://doi.org/10.1109/ICEMS.2011.6073993","url":null,"abstract":"This paper proposes an algorithm to detect the magnetizing inrush of two double-winding converter transformers in bipolar high voltage direct current (HVDC) transmission project by analyzing the waveform characteristics of the resultant current in the grid side. Delivery test of transformer may remain the different polarity of remanent flux in each converter transformer, which causes the inrush directions different when the two double-winding converter transformers are energized at the first time. So that the resultant current at the grid side is close to sinusoid and this leads to the mal-operation of differential protection. In this paper, the generalized nonsaturation zone of inrush current is proposed and the virtual current in the generalized nonsaturation zone is calculated by subtracting the DC offset in the inrush. A normal sinusoidal waveform is structured according to the virtual current, and the waveform coefficient between the structured current and actual current is calculated. The waveform coefficients are used to distinguish magnetizing inrush from fault current. The extreme cases simulated by RTDS (Real Time Digital Simulator) and the field data in China are analyzed and tested. The test results indicate that the proposed algorithm successfully detects magnetizing inrush during the transformers energized at the first time and other times. It is ensured that the differential protection is reliably blocked during inrush and quickly enabled during the short-circuit fault and even a small turn-to-turn fault.","PeriodicalId":101507,"journal":{"name":"2011 International Conference on Electrical Machines and Systems","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122499306","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
Power system dynamic performance improvement with SVC controller 基于SVC控制器的电力系统动态性能改进
2011 International Conference on Electrical Machines and Systems Pub Date : 2011-11-15 DOI: 10.1109/ICEMS.2011.6073829
G. Shahgholian, A. Etesami, Pegah Shafaghi, M. Mahdavian, Ali Leilaeyoun
{"title":"Power system dynamic performance improvement with SVC controller","authors":"G. Shahgholian, A. Etesami, Pegah Shafaghi, M. Mahdavian, Ali Leilaeyoun","doi":"10.1109/ICEMS.2011.6073829","DOIUrl":"https://doi.org/10.1109/ICEMS.2011.6073829","url":null,"abstract":"In this paper, analysis and simulation of SVC controller have been investigated to improve the dynamic stability of power systems. Eigenvalues calculated by linear system models, the impact and changes the controller parameters on the dynamic behavior of the system will be study. Finally, simulation results show that the proposed control scheme provides enhances power system stability and good damping of electromechanical modes of oscillations.","PeriodicalId":101507,"journal":{"name":"2011 International Conference on Electrical Machines and Systems","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123026921","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
Coordinated control on a vehicle-to-grid system 车辆到电网系统的协调控制
2011 International Conference on Electrical Machines and Systems Pub Date : 2011-11-15 DOI: 10.1109/ICEMS.2011.6073710
Diyun Wu, Chunhua Liu, Shuang Gao
{"title":"Coordinated control on a vehicle-to-grid system","authors":"Diyun Wu, Chunhua Liu, Shuang Gao","doi":"10.1109/ICEMS.2011.6073710","DOIUrl":"https://doi.org/10.1109/ICEMS.2011.6073710","url":null,"abstract":"This paper proposes a vehicle-to-grid (V2G) system which integrates with renewable energy sources such as wind power and photovoltaic power. Moreover, a multilayer AC grid including power grid layer and gridable vehicles aggregation layer is established. V2G control which refers to smart charging-discharging strategy and load frequency control is introduced in this paper. And it is simulated by Matlab/Simulink on four grid conditions with different number of vehicles. The results illustrates that V2G can be utilized for system frequency regulation to improve the frequency quality and power quality.","PeriodicalId":101507,"journal":{"name":"2011 International Conference on Electrical Machines and Systems","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121894861","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: 22
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