ICEMS'2001. Proceedings of the Fifth International Conference on Electrical Machines and Systems (IEEE Cat. No.01EX501)最新文献

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Design of neuro-fuzzy controller for the speed control of a DC servo motor 直流伺服电机速度控制的神经模糊控制器设计
Young-Ho Kang, Lark-Kyo Kim
{"title":"Design of neuro-fuzzy controller for the speed control of a DC servo motor","authors":"Young-Ho Kang, Lark-Kyo Kim","doi":"10.1109/ICEMS.2001.971780","DOIUrl":"https://doi.org/10.1109/ICEMS.2001.971780","url":null,"abstract":"The authors have designed a neuro-fuzzy controller to improve some problems that occur when the nonlinear system is controlled by a fuzzy logic controller. Their model obtains fast-time response, maximized learning effect and shortened settling time. To prove the capability of the neuro-fuzzy controller designed in this paper, this neuro-fuzzy model is applied to a DC servomotor. As a result, this controller does not produce overshoot, which occurs in the PID controller, and also does not produce the steady state error of FLC. Also, it shortens the settling time by about 10%. In addition, the authors are aware that their model has only about 60% of the value of current peak of the PID controller.","PeriodicalId":143007,"journal":{"name":"ICEMS'2001. Proceedings of the Fifth International Conference on Electrical Machines and Systems (IEEE Cat. No.01EX501)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128197891","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: 9
New electronic current transducers for measurement and protection in power system 用于电力系统测量和保护的新型电子式电流传感器
Hu Juan, Zhou Youqing, Zhu Qing
{"title":"New electronic current transducers for measurement and protection in power system","authors":"Hu Juan, Zhou Youqing, Zhu Qing","doi":"10.1109/ICEMS.2001.970676","DOIUrl":"https://doi.org/10.1109/ICEMS.2001.970676","url":null,"abstract":"This paper mainly introduces the principles and constructions of two new available electronic current transducers; one is based on the Rogowski coil and the other is the low power current transducer (LPCT). Meanwhile authors compare the phase displacement of output voltage, the frequency range, the applicable fields and the sensitivity to temperature field and etc. between these two kinds of electronic current transducers.","PeriodicalId":143007,"journal":{"name":"ICEMS'2001. Proceedings of the Fifth International Conference on Electrical Machines and Systems (IEEE Cat. No.01EX501)","volume":"509 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115892268","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
Direct-interpolation function method solving electromagnetic boundary value problem 求解电磁边值问题的直接插值函数法
L. Yuesheng, Ma Yaqing, Zhang Fumin, Chu Zhiqiang
{"title":"Direct-interpolation function method solving electromagnetic boundary value problem","authors":"L. Yuesheng, Ma Yaqing, Zhang Fumin, Chu Zhiqiang","doi":"10.1109/ICEMS.2001.970666","DOIUrl":"https://doi.org/10.1109/ICEMS.2001.970666","url":null,"abstract":"This paper analyses a new point dispersal method that uses a direct interpolation function to build the relationship among internal dispersal points. For the boundary condition that is rather a problem faced by all point dispersal methods we use a basic electromagnetic integral equation. This method exerts the advantage of convenient pre-processing of the point dispersal method to solve the boundary value problem of an electromagnetic field. In this paper, its application on a power transformer is given to verify the proposed method.","PeriodicalId":143007,"journal":{"name":"ICEMS'2001. Proceedings of the Fifth International Conference on Electrical Machines and Systems (IEEE Cat. No.01EX501)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131380719","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
The numerical simulation and experimental measurement of electric breakdown inside the three-phase common enclosure SF/sub 6/ insulated GIS SF/sub - 6/绝缘GIS三相共机箱内击穿的数值模拟与实验测量
Xu Jianyuan, W. Haifeng, Zhao Jisheng, Shi Fengyi
{"title":"The numerical simulation and experimental measurement of electric breakdown inside the three-phase common enclosure SF/sub 6/ insulated GIS","authors":"Xu Jianyuan, W. Haifeng, Zhao Jisheng, Shi Fengyi","doi":"10.1109/ICEMS.2001.970764","DOIUrl":"https://doi.org/10.1109/ICEMS.2001.970764","url":null,"abstract":"The three-dimensional electric field inside a 3-phase common enclosure SF/sub 6/ GIS was calculated by the finite element method. From the calculating results the electric field distribution on the surface of the porcelain pole type insulator and disc type insulator were derived. To be associated with the calculating results an experimental research was taken and the breakdown voltage was measured.","PeriodicalId":143007,"journal":{"name":"ICEMS'2001. Proceedings of the Fifth International Conference on Electrical Machines and Systems (IEEE Cat. No.01EX501)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132252638","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
Electromagnetic design of six-phase LCI-fed synchronous motor 六相lci同步电动机的电磁设计
Sun Yutian, Z. Chunli, Chen Run-nian, Wang Bin
{"title":"Electromagnetic design of six-phase LCI-fed synchronous motor","authors":"Sun Yutian, Z. Chunli, Chen Run-nian, Wang Bin","doi":"10.1109/ICEMS.2001.970635","DOIUrl":"https://doi.org/10.1109/ICEMS.2001.970635","url":null,"abstract":"The approach of electromagnetic design for six-phase salient-pole synchronous motor fed by load commutated inverter (LCI) is presented in this paper. The commutation feature and the characteristics of power factor, harmonic loss, power flow and efficiency in the machine are taken into account.","PeriodicalId":143007,"journal":{"name":"ICEMS'2001. Proceedings of the Fifth International Conference on Electrical Machines and Systems (IEEE Cat. No.01EX501)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130073291","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
Study of single sheet tester for AC magnetization characteristics measurement 交流磁化特性测量单片测试仪的研究
L. Shuo, L. Zhiqiang, Wang Yong, L. Fugui, Yan Weili
{"title":"Study of single sheet tester for AC magnetization characteristics measurement","authors":"L. Shuo, L. Zhiqiang, Wang Yong, L. Fugui, Yan Weili","doi":"10.1109/ICEMS.2001.970687","DOIUrl":"https://doi.org/10.1109/ICEMS.2001.970687","url":null,"abstract":"In this paper, the method of measuring AC magnetization characteristics of magnetic steel sheets with a single sheet tester (SST) is studied. With the help of a computer, the AC magnetization characteristics can be measured automatically under the condition of ensuring the waveform of flux density B to be sinusoidal.","PeriodicalId":143007,"journal":{"name":"ICEMS'2001. Proceedings of the Fifth International Conference on Electrical Machines and Systems (IEEE Cat. No.01EX501)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130090552","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
Expert system of trouble diagnosis for DC motor 直流电机故障诊断专家系统
Ma Zhuwu, Shen Biaozheng
{"title":"Expert system of trouble diagnosis for DC motor","authors":"Ma Zhuwu, Shen Biaozheng","doi":"10.1109/ICEMS.2001.970689","DOIUrl":"https://doi.org/10.1109/ICEMS.2001.970689","url":null,"abstract":"A technical diagnostic type expert system is essentially a computer software system combining artificial intelligence technique with equipment fault diagnosis technique. It uses special knowledge and a method provided by experts which simulates the inference process of experts to solve some complicated and important problems. In this paper, we introduce the expert system for fault diagnosis of a DC motor and also describe the method for enhancing diagnosis hit-rate.","PeriodicalId":143007,"journal":{"name":"ICEMS'2001. Proceedings of the Fifth International Conference on Electrical Machines and Systems (IEEE Cat. No.01EX501)","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130203473","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
Hierarchical solution procedure of combined finite element-wavelets methods 有限元-小波组合方法的层次解法
Tan Yimin, Xie Xueping
{"title":"Hierarchical solution procedure of combined finite element-wavelets methods","authors":"Tan Yimin, Xie Xueping","doi":"10.1109/ICEMS.2001.971868","DOIUrl":"https://doi.org/10.1109/ICEMS.2001.971868","url":null,"abstract":"A hierarchical solution procedure of finite element methods using the multi-resolution property of wavelets is proposed. The characteristics of the proposed procedure is that (1) an approximation with a coarse mesh is determined firstly, and (2) then the approximation is refined hierarchically without any requirement for remeshing. Therefore, the proposed method seems more attractive for problems involving greedy gradients in only a small sub-region such as thin skin effect study of iron materials in high frequency fields. Numerical example is designed to demonstrate the hierarchical nature of the proposed method.","PeriodicalId":143007,"journal":{"name":"ICEMS'2001. Proceedings of the Fifth International Conference on Electrical Machines and Systems (IEEE Cat. No.01EX501)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134398677","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
Development of full digital control system for permanent magnet synchronous motor used in electric vehicle 电动汽车用永磁同步电机全数字控制系统的研制
Xu Jia-qun, Xu Yanliang, Tang Renyuan
{"title":"Development of full digital control system for permanent magnet synchronous motor used in electric vehicle","authors":"Xu Jia-qun, Xu Yanliang, Tang Renyuan","doi":"10.1109/ICEMS.2001.970734","DOIUrl":"https://doi.org/10.1109/ICEMS.2001.970734","url":null,"abstract":"This paper describes a full digital system to control a permanent magnet synchronous motor (PMSM) used in electric vehicle (EV) driving by TMS320C240 DSP. In view of the operation characteristic of EV, a fuzzy-PI control strategy is presented based on the field orientated control (FOC) and space vector technique in order to utilize reluctance torque of PMSM effectively. Due to the compensation for torque changes resulting from d-axis current in real-time, the system maintains high efficiency in all range of speed. The combination of fewer components and the improved control strategy enables the system to fulfil enhanced operation performance of EV.","PeriodicalId":143007,"journal":{"name":"ICEMS'2001. Proceedings of the Fifth International Conference on Electrical Machines and Systems (IEEE Cat. No.01EX501)","volume":"131 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132974983","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
Application research based on improved genetic algorithm for optimum design of power transformers 基于改进遗传算法的电力变压器优化设计应用研究
Li Hui, Han Li, He Bei, Yang Shunchang
{"title":"Application research based on improved genetic algorithm for optimum design of power transformers","authors":"Li Hui, Han Li, He Bei, Yang Shunchang","doi":"10.1109/ICEMS.2001.970657","DOIUrl":"https://doi.org/10.1109/ICEMS.2001.970657","url":null,"abstract":"In order to attain global optimal or quasioptimum solution for power transformers design, some interrelated key techniques such as encoding scheme, genetic operators, constrained condition, fitness function for the simple genetic algorithm (SGA) are further reformed and researched. An improved genetic algorithm (IGA) is developed in this paper and applied to the optimum design of S9 power transformers for the first time. In addition, a multi-objective algorithm based on IGA is applied successfully in the double objective optimum design of S9 power transformers, by using the theory of variable weight coefficients for the multi-objective optimization. All the achievements in the paper are verified by a representative mathematical example and a practical S9-1000/10 kV power transformer. All the optimization results are satisfactory and show that IGA has powerful ability of global searching, excellent solution precision and has a bright application prospect in the fields of power transformers design.","PeriodicalId":143007,"journal":{"name":"ICEMS'2001. Proceedings of the Fifth International Conference on Electrical Machines and Systems (IEEE Cat. No.01EX501)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130879706","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: 53
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