Pub Date : 2010-05-09DOI: 10.1109/CEFC.2010.5481744
Yongjian Li, Qingxin Yang, Jianguo Zhu, Jingfeng Sun, Lei Guo, Cuihuan Li
In rotating electric machines, magnetic material shows complex three-dimensional (3-D) properties due to rotational domains. In order to comprehensively analyze magnetic field distribution in the rotating flux machines, a 3-D magnetic properties testing system fit for cubic specimen has been constructed and modeled by means of finite element method (FEM). Taking the magnetic reluctivity tensor into account, this paper presents the modeling of 3-D tester core and analyzes the 3-D properties of a kind of SMC material. Experimental results are also presented to testify the rationality of design.
{"title":"Modeling and analysis of 3-D tensor magnetic reluctivity properties of soft magnetic composite material","authors":"Yongjian Li, Qingxin Yang, Jianguo Zhu, Jingfeng Sun, Lei Guo, Cuihuan Li","doi":"10.1109/CEFC.2010.5481744","DOIUrl":"https://doi.org/10.1109/CEFC.2010.5481744","url":null,"abstract":"In rotating electric machines, magnetic material shows complex three-dimensional (3-D) properties due to rotational domains. In order to comprehensively analyze magnetic field distribution in the rotating flux machines, a 3-D magnetic properties testing system fit for cubic specimen has been constructed and modeled by means of finite element method (FEM). Taking the magnetic reluctivity tensor into account, this paper presents the modeling of 3-D tester core and analyzes the 3-D properties of a kind of SMC material. Experimental results are also presented to testify the rationality of design.","PeriodicalId":148739,"journal":{"name":"Digests of the 2010 14th Biennial IEEE Conference on Electromagnetic Field Computation","volume":"76 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131286076","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}
Pub Date : 2010-05-09DOI: 10.1109/CEFC.2010.5481660
B. Errasti-Alcalá, D. Escot-Bocanegra, D. Poyatos-Martínez, A. Jurado-Lucena, R. Fernández-Recio
Direction of Arrival (DOA) estimation is a problem which concerns very diverse fields of interest. In most applications, not only the DOA but also the estimation of the amplitude of the incoming signals is becoming an important issue. In that sense, Particle Swarm Optimization (PSO) has shown a great capability to solve the DOA problem accurately and this communication presents a method to estimate both the amplitude and the Direction of Arrival of several incoming signals of a given wavelength.
{"title":"Joint Direction of Arrival and amplitude estimation using Particle Swarm Optimization and a single snapshot","authors":"B. Errasti-Alcalá, D. Escot-Bocanegra, D. Poyatos-Martínez, A. Jurado-Lucena, R. Fernández-Recio","doi":"10.1109/CEFC.2010.5481660","DOIUrl":"https://doi.org/10.1109/CEFC.2010.5481660","url":null,"abstract":"Direction of Arrival (DOA) estimation is a problem which concerns very diverse fields of interest. In most applications, not only the DOA but also the estimation of the amplitude of the incoming signals is becoming an important issue. In that sense, Particle Swarm Optimization (PSO) has shown a great capability to solve the DOA problem accurately and this communication presents a method to estimate both the amplitude and the Direction of Arrival of several incoming signals of a given wavelength.","PeriodicalId":148739,"journal":{"name":"Digests of the 2010 14th Biennial IEEE Conference on Electromagnetic Field Computation","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131434482","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}
Pub Date : 2010-05-09DOI: 10.1109/CEFC.2010.5481566
H. Won, Sung Ho Lee, G. Park
This paper is about novel designed magnetophoretic display system that is using bistable magnetic ball. Nowadays, it must is most of important issue that is efficient using energy and saving energy in the common problem. When display system is refreshing the display, it need a energy source but it will have not been needed any energy for continued displayed display.
{"title":"Analysis and measurement of the magnetophoretic display system by using bistable magnetic ball for extremely low power consumptions","authors":"H. Won, Sung Ho Lee, G. Park","doi":"10.1109/CEFC.2010.5481566","DOIUrl":"https://doi.org/10.1109/CEFC.2010.5481566","url":null,"abstract":"This paper is about novel designed magnetophoretic display system that is using bistable magnetic ball. Nowadays, it must is most of important issue that is efficient using energy and saving energy in the common problem. When display system is refreshing the display, it need a energy source but it will have not been needed any energy for continued displayed display.","PeriodicalId":148739,"journal":{"name":"Digests of the 2010 14th Biennial IEEE Conference on Electromagnetic Field Computation","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121871742","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}
Pub Date : 2010-05-09DOI: 10.1109/CEFC.2010.5481756
P. Zheng, Qian Wu, Ranran Liu, Jing Zhao, Chengde Tong
Compound-structure permanent-magnet synchronous machine (CS-PMSM), which is composed by two electric machines, is a new type of machine developed these years. It has a wide application prospect on hybrid electric vehicle (HEV). One of the main disadvantages of this machine is that as one of the rotors has armature winding in it, a brush and slip rings must be used. Some research work has been done to solve this problem and a novel brushless scheme is proposed in this paper. The new type of brushless CS-PMSM consists of one stator machine (SM) and one brushless double rotor machine (BDRM). As the BDRM has a new claw-pole structure, the equivalent magnetic circuit is drawn, then the model is built and optimized by using 3D finite-element method (FEM), the results of the optimization show both the back electromotive forces (BEMFs) and torque meet the requirements.
{"title":"Design of a brushless compound-structure permanent-magnet synchronous machine for HEV propulsion system","authors":"P. Zheng, Qian Wu, Ranran Liu, Jing Zhao, Chengde Tong","doi":"10.1109/CEFC.2010.5481756","DOIUrl":"https://doi.org/10.1109/CEFC.2010.5481756","url":null,"abstract":"Compound-structure permanent-magnet synchronous machine (CS-PMSM), which is composed by two electric machines, is a new type of machine developed these years. It has a wide application prospect on hybrid electric vehicle (HEV). One of the main disadvantages of this machine is that as one of the rotors has armature winding in it, a brush and slip rings must be used. Some research work has been done to solve this problem and a novel brushless scheme is proposed in this paper. The new type of brushless CS-PMSM consists of one stator machine (SM) and one brushless double rotor machine (BDRM). As the BDRM has a new claw-pole structure, the equivalent magnetic circuit is drawn, then the model is built and optimized by using 3D finite-element method (FEM), the results of the optimization show both the back electromotive forces (BEMFs) and torque meet the requirements.","PeriodicalId":148739,"journal":{"name":"Digests of the 2010 14th Biennial IEEE Conference on Electromagnetic Field Computation","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133255269","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}
Pub Date : 2010-05-09DOI: 10.1109/CEFC.2010.5481408
R. Filho, José H Araüjo, R. A. Martins, A. D’assunção, L. M. Mendonça
This work presents a numerical and experimental investigation of the resonant properties of a microstrip-fed S-shaped monopole patch antenna on a high permittivity BiNbO4 ceramic substrate. The high electrical permittivity of the ceramic substrate provided a reduction in the resonator dimensions. A good agreement was observed between simulated and measured resonant frequency of the considered antenna.
{"title":"Simulated and measured results for a S-shaped monopole patch antenna on a BiNbO4 layer","authors":"R. Filho, José H Araüjo, R. A. Martins, A. D’assunção, L. M. Mendonça","doi":"10.1109/CEFC.2010.5481408","DOIUrl":"https://doi.org/10.1109/CEFC.2010.5481408","url":null,"abstract":"This work presents a numerical and experimental investigation of the resonant properties of a microstrip-fed S-shaped monopole patch antenna on a high permittivity BiNbO4 ceramic substrate. The high electrical permittivity of the ceramic substrate provided a reduction in the resonator dimensions. A good agreement was observed between simulated and measured resonant frequency of the considered antenna.","PeriodicalId":148739,"journal":{"name":"Digests of the 2010 14th Biennial IEEE Conference on Electromagnetic Field Computation","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134419005","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}
Pub Date : 2010-05-09DOI: 10.1109/CEFC.2010.5481834
Sang-Hoon Kim, Y. You, T. Lipo, B. Kwon
Doubly-Fed Induction Generators (DFIGs) are widely used for modern wind turbines. Although the stator winding of DFIG is directly connected to a grid while a rotor winding is connected to converters, it has a large outer size because of the high current in the stator winding. This paper proposes a grid-connected to a rotor type DFIG where rotor winding is connected to the grid instead of stator winding. In order to verify the size reduction of the proposed type, a loading distribution method (LDM) is utilized. Then the characteristic analysis is performed using the equivalent circuit method (ECM). As a result, the total volume of the proposed type was decreased by about 10.73 %. In addition, the total core weight of the proposed type was also decreased from 24.5 kg to 21.9 kg.
{"title":"Design of grid-connected to rotor type Doubly-Fed Induction Generators for wind turbine system","authors":"Sang-Hoon Kim, Y. You, T. Lipo, B. Kwon","doi":"10.1109/CEFC.2010.5481834","DOIUrl":"https://doi.org/10.1109/CEFC.2010.5481834","url":null,"abstract":"Doubly-Fed Induction Generators (DFIGs) are widely used for modern wind turbines. Although the stator winding of DFIG is directly connected to a grid while a rotor winding is connected to converters, it has a large outer size because of the high current in the stator winding. This paper proposes a grid-connected to a rotor type DFIG where rotor winding is connected to the grid instead of stator winding. In order to verify the size reduction of the proposed type, a loading distribution method (LDM) is utilized. Then the characteristic analysis is performed using the equivalent circuit method (ECM). As a result, the total volume of the proposed type was decreased by about 10.73 %. In addition, the total core weight of the proposed type was also decreased from 24.5 kg to 21.9 kg.","PeriodicalId":148739,"journal":{"name":"Digests of the 2010 14th Biennial IEEE Conference on Electromagnetic Field Computation","volume":"110 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134424158","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}
Pub Date : 2010-05-09DOI: 10.1109/CEFC.2010.5481262
Lei Huang, H. Yu, Jing Zhao, M.Q. Hu
In this paper, a novel flux-switching permanent magnet (FSPM) linear generator is proposed for wave energy extraction. The linear generator is analyzed by using 2D finite element method (FEM) to investigate the electromagnetic characteristics. The result shows that the proposed generator has advantage of the voltage waveform by reducing the cogging effect. The computational results are verified by experiments.
{"title":"A novel flux-switching permanent magnet linear generator for wave energy extraction","authors":"Lei Huang, H. Yu, Jing Zhao, M.Q. Hu","doi":"10.1109/CEFC.2010.5481262","DOIUrl":"https://doi.org/10.1109/CEFC.2010.5481262","url":null,"abstract":"In this paper, a novel flux-switching permanent magnet (FSPM) linear generator is proposed for wave energy extraction. The linear generator is analyzed by using 2D finite element method (FEM) to investigate the electromagnetic characteristics. The result shows that the proposed generator has advantage of the voltage waveform by reducing the cogging effect. The computational results are verified by experiments.","PeriodicalId":148739,"journal":{"name":"Digests of the 2010 14th Biennial IEEE Conference on Electromagnetic Field Computation","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133826878","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}
Pub Date : 2010-05-09DOI: 10.1109/CEFC.2010.5481332
Jing Zhao, P. Zheng, Chengde Tong, Qian Wu, Ranran Liu
A compound-structure permanent-magnet synchronous machine (CS-PMSM) system used for hybrid electric vehicles (HEVs) enables the combustion engine (ICE) to operate at optimum efficiency independent of road conditions, thus decreasing the emissions and fuel consumption. The key part CS-PMSM is a high integration of two electric machines. The connection way of the CS-PMSM in the HEV system is discussed. Different topologies of the CS-PMSM are put forward and evaluated by finite-element method (FEM) respectively. A downsized axial-axial flux prototype machine was designed and manufactured for the testing facilities and concept validation. The performance, efficiency, temperature and the function of the axial-axial flux CS-PMSM prototype are measured and analyzed.
{"title":"Research on compound-structure permanent-magnet synchronous machine used for hybrid electric vehicles","authors":"Jing Zhao, P. Zheng, Chengde Tong, Qian Wu, Ranran Liu","doi":"10.1109/CEFC.2010.5481332","DOIUrl":"https://doi.org/10.1109/CEFC.2010.5481332","url":null,"abstract":"A compound-structure permanent-magnet synchronous machine (CS-PMSM) system used for hybrid electric vehicles (HEVs) enables the combustion engine (ICE) to operate at optimum efficiency independent of road conditions, thus decreasing the emissions and fuel consumption. The key part CS-PMSM is a high integration of two electric machines. The connection way of the CS-PMSM in the HEV system is discussed. Different topologies of the CS-PMSM are put forward and evaluated by finite-element method (FEM) respectively. A downsized axial-axial flux prototype machine was designed and manufactured for the testing facilities and concept validation. The performance, efficiency, temperature and the function of the axial-axial flux CS-PMSM prototype are measured and analyzed.","PeriodicalId":148739,"journal":{"name":"Digests of the 2010 14th Biennial IEEE Conference on Electromagnetic Field Computation","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134084158","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}
Pub Date : 2010-05-09DOI: 10.1109/CEFC.2010.5481677
Hee-Woon Kim, Jin-Gyu Youn, J. Hur, Byeong-Woo Kim
This paper presents that torque characteristic according to the pole/slot combination is analyzed under a stator-turn fault. The circulating current affects increasing input current and aggravating torque characteristic under a stator-fault. This paper is made of the modeling of 8-pole 12-slot and 10-pole 12-slot motors using the developed FEM-base model and analyzed the torque characteristic according to the circulating current and input current under a stator-turn fault.
{"title":"Torque characteristic analysis of IPM type BLDC motor considering pole/slot combination under stator-turn fault condition","authors":"Hee-Woon Kim, Jin-Gyu Youn, J. Hur, Byeong-Woo Kim","doi":"10.1109/CEFC.2010.5481677","DOIUrl":"https://doi.org/10.1109/CEFC.2010.5481677","url":null,"abstract":"This paper presents that torque characteristic according to the pole/slot combination is analyzed under a stator-turn fault. The circulating current affects increasing input current and aggravating torque characteristic under a stator-fault. This paper is made of the modeling of 8-pole 12-slot and 10-pole 12-slot motors using the developed FEM-base model and analyzed the torque characteristic according to the circulating current and input current under a stator-turn fault.","PeriodicalId":148739,"journal":{"name":"Digests of the 2010 14th Biennial IEEE Conference on Electromagnetic Field Computation","volume":" 8","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114053233","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}
Pub Date : 2010-05-09DOI: 10.1109/CEFC.2010.5481809
Li Liyi, Pan Donghua, Kou Baoquan
Eddy currents induced in a conductor in a changing magnetic field produce a damping force proportional to the heat generated in the conductive material. In the DC linear motor system, the conductive plate is added under coils for damping force to improve motor's dynamic response. In the preliminary work, the formula of magnetic field distribution is obtained by the method of images, so the eddy current inducted in the conductor is calculated. Then the damping force is obtained after the equivalent resistance and inductance of conductance place are calculated. The design of eddy current damping for short-stroke DC linear motor is optimized by the formula of damping force, and obtains the speed of mover when maximal damping force is induced.
{"title":"Analysis of eddy current damping for short-stroke DC linear motor","authors":"Li Liyi, Pan Donghua, Kou Baoquan","doi":"10.1109/CEFC.2010.5481809","DOIUrl":"https://doi.org/10.1109/CEFC.2010.5481809","url":null,"abstract":"Eddy currents induced in a conductor in a changing magnetic field produce a damping force proportional to the heat generated in the conductive material. In the DC linear motor system, the conductive plate is added under coils for damping force to improve motor's dynamic response. In the preliminary work, the formula of magnetic field distribution is obtained by the method of images, so the eddy current inducted in the conductor is calculated. Then the damping force is obtained after the equivalent resistance and inductance of conductance place are calculated. The design of eddy current damping for short-stroke DC linear motor is optimized by the formula of damping force, and obtains the speed of mover when maximal damping force is induced.","PeriodicalId":148739,"journal":{"name":"Digests of the 2010 14th Biennial IEEE Conference on Electromagnetic Field Computation","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115677182","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}
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