Pub Date : 2007-12-26DOI: 10.1109/ICEMS.2007.4412097
Junjie Cao, C. Sun, Y. An
Detecting the chaotic strange attractor is worked by reconstructing phase-space using one-dimension time series. The wavelet phase-space reconstruction can reconstruct the BLDCM (blushless direct current motor) system's strange attractor, and reconstruct the phase-space diagram of different working state. Therefore, using different features of the phase-plane diagrams, it can accurately control BLDCM system with the anti-control and control of chaos.
{"title":"The application of wavelet phase-space reconstruction in BLDCM system's features analysis","authors":"Junjie Cao, C. Sun, Y. An","doi":"10.1109/ICEMS.2007.4412097","DOIUrl":"https://doi.org/10.1109/ICEMS.2007.4412097","url":null,"abstract":"Detecting the chaotic strange attractor is worked by reconstructing phase-space using one-dimension time series. The wavelet phase-space reconstruction can reconstruct the BLDCM (blushless direct current motor) system's strange attractor, and reconstruct the phase-space diagram of different working state. Therefore, using different features of the phase-plane diagrams, it can accurately control BLDCM system with the anti-control and control of chaos.","PeriodicalId":211729,"journal":{"name":"2007 International Conference on Electrical Machines and Systems (ICEMS)","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125974319","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 : 2007-12-26DOI: 10.1109/ICEMS12746.2007.4412248
Xing-jia Yao, Guang De Liu, Y. Liu, C. Zhang
With the requirements of the megawatt wind turbine controlling and operation stability, the new neural network PID controller based on the CMAC self-adaptive learning algorithm designed, and its self-study and self-regulating performances can fit the real-time control system control demands and smooth operation to reduce the gust strike on the wind turbine.
{"title":"The neural network self-adaptive algorithm application on mechanism pitch-adjust system of wind turbine","authors":"Xing-jia Yao, Guang De Liu, Y. Liu, C. Zhang","doi":"10.1109/ICEMS12746.2007.4412248","DOIUrl":"https://doi.org/10.1109/ICEMS12746.2007.4412248","url":null,"abstract":"With the requirements of the megawatt wind turbine controlling and operation stability, the new neural network PID controller based on the CMAC self-adaptive learning algorithm designed, and its self-study and self-regulating performances can fit the real-time control system control demands and smooth operation to reduce the gust strike on the wind turbine.","PeriodicalId":211729,"journal":{"name":"2007 International Conference on Electrical Machines and Systems (ICEMS)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122107749","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 : 2007-12-26DOI: 10.1109/ICEMS12746.2007.4412088
M.H. Ali, Minwon Park, I. Yu, T. Murata, J. Tamura
This paper proposes a fuzzy logic-controlled SMES (superconducting magnetic energy storage) scheme for the stabilization of grid connected wind generator system. The control scheme of SMES is based on a sinusoidal PWM (Pulse Width Modulation) voltage source converter (VSC) and a two- quadrant DC-DC chopper using insulated-gate-bipolar-transistor (IGBT). A comparative study is carried out between the proposed fuzzy logic-controlled SMES and fuzzy logic-based pitch controller to improve the wind generator stability. Simulation results demonstrate that the performance of the proposed fuzzy logic-controlled SMES is better than that of the fuzzy logic-based pitch controller in order to stabilize the wind generator.
{"title":"Improvement of wind generator stability by fuzzy logic-controlled SMES","authors":"M.H. Ali, Minwon Park, I. Yu, T. Murata, J. Tamura","doi":"10.1109/ICEMS12746.2007.4412088","DOIUrl":"https://doi.org/10.1109/ICEMS12746.2007.4412088","url":null,"abstract":"This paper proposes a fuzzy logic-controlled SMES (superconducting magnetic energy storage) scheme for the stabilization of grid connected wind generator system. The control scheme of SMES is based on a sinusoidal PWM (Pulse Width Modulation) voltage source converter (VSC) and a two- quadrant DC-DC chopper using insulated-gate-bipolar-transistor (IGBT). A comparative study is carried out between the proposed fuzzy logic-controlled SMES and fuzzy logic-based pitch controller to improve the wind generator stability. Simulation results demonstrate that the performance of the proposed fuzzy logic-controlled SMES is better than that of the fuzzy logic-based pitch controller in order to stabilize the wind generator.","PeriodicalId":211729,"journal":{"name":"2007 International Conference on Electrical Machines and Systems (ICEMS)","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125092067","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}
Jeongdai Jo, H. Jeong, Kwangyoung Kim, Dong-Soo Kim, Do-Sik Kim
Lab. simulator for conducting a performance test and a reliability test on a vehicle and components has been embodied. In order to control non-linear of a vehicle, a fuzzy control algorithm, a running mode tracking algorithm and a vehicle speed control algorithm were applied to the actuator control. The vehicle controller and servo controller functions were implemented; position control, the gear shift control depending upon the vehicle RPM, control with actuator by controlling the pneumatic servo valve, and measured data information such as a position, a velocity and an acceleration as obtained through operation by means of the second differentiator and controlled a position precisely. An experimental apparatus was consisted of a dynamometer and a vehicle, and the performance and durability of the controller was verified. The Lab. simulator was mounted onto the vehicle, and the position control test and a LAP mode tracking test were conducted. It was found that the response characteristic, the tracking capability and precision of the position control were so excellent.
{"title":"Design and implementation of Lab. simulator for vehicle control","authors":"Jeongdai Jo, H. Jeong, Kwangyoung Kim, Dong-Soo Kim, Do-Sik Kim","doi":"10.5739/ISFP.2005.807","DOIUrl":"https://doi.org/10.5739/ISFP.2005.807","url":null,"abstract":"Lab. simulator for conducting a performance test and a reliability test on a vehicle and components has been embodied. In order to control non-linear of a vehicle, a fuzzy control algorithm, a running mode tracking algorithm and a vehicle speed control algorithm were applied to the actuator control. The vehicle controller and servo controller functions were implemented; position control, the gear shift control depending upon the vehicle RPM, control with actuator by controlling the pneumatic servo valve, and measured data information such as a position, a velocity and an acceleration as obtained through operation by means of the second differentiator and controlled a position precisely. An experimental apparatus was consisted of a dynamometer and a vehicle, and the performance and durability of the controller was verified. The Lab. simulator was mounted onto the vehicle, and the position control test and a LAP mode tracking test were conducted. It was found that the response characteristic, the tracking capability and precision of the position control were so excellent.","PeriodicalId":211729,"journal":{"name":"2007 International Conference on Electrical Machines and Systems (ICEMS)","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128275819","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 : 2007-12-26DOI: 10.1109/ICEMS.2007.4412002
B. Fahimi
In recent years, considerable research efforts have been devoted to the development of power electronics for enhanced control of electric drives. Traditional analysis and control of a drive is often based on a generalized system model, wherein a relationship between the average torque and phase current is established analytically. However effects of the applied control scheme on the resultant radial force components and geometrical distribution of forces are not provided by these models. This paper presents a novel field reconstruction approach towards the accurate modeling of the drive which includes an analytical expression describing the electromagnetic behavior of the machine. This is an ideal technique for the numerical analysis and performance evaluation of an electric drive from an electromagnetic perspective. Since finite element analysis (FEA) only needs to be performed once, the cost and time involved in generating the desired results are dramatically reduced This paper uses a 3-phase PMSM to illustrate the proof of principle. However the concept can be extended to any machine type with a known geometry.
{"title":"Qualitative approach to electromechanical energy conversion: Reinventing the art of design in adjustable speed drives","authors":"B. Fahimi","doi":"10.1109/ICEMS.2007.4412002","DOIUrl":"https://doi.org/10.1109/ICEMS.2007.4412002","url":null,"abstract":"In recent years, considerable research efforts have been devoted to the development of power electronics for enhanced control of electric drives. Traditional analysis and control of a drive is often based on a generalized system model, wherein a relationship between the average torque and phase current is established analytically. However effects of the applied control scheme on the resultant radial force components and geometrical distribution of forces are not provided by these models. This paper presents a novel field reconstruction approach towards the accurate modeling of the drive which includes an analytical expression describing the electromagnetic behavior of the machine. This is an ideal technique for the numerical analysis and performance evaluation of an electric drive from an electromagnetic perspective. Since finite element analysis (FEA) only needs to be performed once, the cost and time involved in generating the desired results are dramatically reduced This paper uses a 3-phase PMSM to illustrate the proof of principle. However the concept can be extended to any machine type with a known geometry.","PeriodicalId":211729,"journal":{"name":"2007 International Conference on Electrical Machines and Systems (ICEMS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129505983","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 : 2007-12-26DOI: 10.1109/ICEMS.2007.4412205
L. Hsu, Chien-Chin Huang, M. Tsai, Guangjing Huang
As the trend toward compact sizes in electronic products, size reduction has become one of the most important aspects of motor design. In this paper, a miniature axial-flux brushless motor with flexible printed circuit board (FPCB) winding is shown. In order to avoid the mechanical destruction during testing, this paper proposed a characteristic estimating method to measure the performance of the proposed motor. In addition, an implemented motor with drive ICs is established to verify the proposed method. The method is first to drive the motor operating under the two-phase-on mode, and then determine the value of back-EMF constant. While the rotating speed, the motor voltage and winding current are then acquired, most characteristic parameters could be calculated eventually. Contrary to the traditional characteristic testing, this method needs no extra loading and coupling. Having practiced the estimating, a discussion is given to examine the achievement of this study.
{"title":"A No-coupling characteristic estimating method for a miniature axial-flux brushless motor","authors":"L. Hsu, Chien-Chin Huang, M. Tsai, Guangjing Huang","doi":"10.1109/ICEMS.2007.4412205","DOIUrl":"https://doi.org/10.1109/ICEMS.2007.4412205","url":null,"abstract":"As the trend toward compact sizes in electronic products, size reduction has become one of the most important aspects of motor design. In this paper, a miniature axial-flux brushless motor with flexible printed circuit board (FPCB) winding is shown. In order to avoid the mechanical destruction during testing, this paper proposed a characteristic estimating method to measure the performance of the proposed motor. In addition, an implemented motor with drive ICs is established to verify the proposed method. The method is first to drive the motor operating under the two-phase-on mode, and then determine the value of back-EMF constant. While the rotating speed, the motor voltage and winding current are then acquired, most characteristic parameters could be calculated eventually. Contrary to the traditional characteristic testing, this method needs no extra loading and coupling. Having practiced the estimating, a discussion is given to examine the achievement of this study.","PeriodicalId":211729,"journal":{"name":"2007 International Conference on Electrical Machines and Systems (ICEMS)","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122035835","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 : 2007-12-26DOI: 10.1109/ICEMS.2007.4412174
Shang Jing, Zhu Hongwei, Lu Yongping
Along with the progress of intelligent control and robot technology, machine arms, which are not so easy to be effected by the environment, easy operated, have taken place of human in more and more field. The motor used in the joint of machine arm is very important and has more influence on the system. The choice of the motor and relative method of control has more or less effect on the cost, operating precision and the reliable of the arm. Among all the motors that can be used in the joints, brushless DC motor (BLDCM), which has advantages as low cost, light quality and high reliable etc., has taken more and more attentions. In this paper, we analyze the characters of one kind of the high-energy density designed BLDCM in robot according to environment and its structures.
{"title":"Structure optimization for brushless DC motor in robot's arms using FEM","authors":"Shang Jing, Zhu Hongwei, Lu Yongping","doi":"10.1109/ICEMS.2007.4412174","DOIUrl":"https://doi.org/10.1109/ICEMS.2007.4412174","url":null,"abstract":"Along with the progress of intelligent control and robot technology, machine arms, which are not so easy to be effected by the environment, easy operated, have taken place of human in more and more field. The motor used in the joint of machine arm is very important and has more influence on the system. The choice of the motor and relative method of control has more or less effect on the cost, operating precision and the reliable of the arm. Among all the motors that can be used in the joints, brushless DC motor (BLDCM), which has advantages as low cost, light quality and high reliable etc., has taken more and more attentions. In this paper, we analyze the characters of one kind of the high-energy density designed BLDCM in robot according to environment and its structures.","PeriodicalId":211729,"journal":{"name":"2007 International Conference on Electrical Machines and Systems (ICEMS)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122210458","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 : 2007-12-26DOI: 10.1109/ICEMS.2007.4412286
Ji-Young Lee, In-Jae Lee, Ji-Won Kim, Junghwan Chang, D. Kang, Shi-Uk Chung, Jung-Pyo Hong
Most of Contactless Power Transfer Systems (CPTS) have independent structure to improve power transmission efficiency. Sometimes, however, CPTS needs to be a part of moving system to reduce overall system volume. Therefore, this paper proposes a CPTS combined with a linear electric machine loading robots. A prototype CPTS has been constructed for testing and performance evaluation. This paper examines the performance of the prototype by simulation and test with AC-voltage source and PWM-voltage source.
{"title":"Contactless power transfer system combined with linear electric machine","authors":"Ji-Young Lee, In-Jae Lee, Ji-Won Kim, Junghwan Chang, D. Kang, Shi-Uk Chung, Jung-Pyo Hong","doi":"10.1109/ICEMS.2007.4412286","DOIUrl":"https://doi.org/10.1109/ICEMS.2007.4412286","url":null,"abstract":"Most of Contactless Power Transfer Systems (CPTS) have independent structure to improve power transmission efficiency. Sometimes, however, CPTS needs to be a part of moving system to reduce overall system volume. Therefore, this paper proposes a CPTS combined with a linear electric machine loading robots. A prototype CPTS has been constructed for testing and performance evaluation. This paper examines the performance of the prototype by simulation and test with AC-voltage source and PWM-voltage source.","PeriodicalId":211729,"journal":{"name":"2007 International Conference on Electrical Machines and Systems (ICEMS)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132516933","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 : 2007-12-26DOI: 10.1109/ICEMS.2007.4412228
Youngwan Son, Ju Lee
This paper shows two types of PM stepping Motor. Understanding of these two motors is obviously based on 3D problem because of the peculiar magnetic circuit. Most of all, the magnetic flux distribution must be defined in two different types of motors. Then, each structure of the motor can be used for a special purpose. To analyze these types of motor, 3-dimensional analysis is necessary for an accurate analysis due to the magnetizing component of the z-axis direction. The waveforms will be compared too.
{"title":"Comparison between two types of PM stepping motor using finite element analysis","authors":"Youngwan Son, Ju Lee","doi":"10.1109/ICEMS.2007.4412228","DOIUrl":"https://doi.org/10.1109/ICEMS.2007.4412228","url":null,"abstract":"This paper shows two types of PM stepping Motor. Understanding of these two motors is obviously based on 3D problem because of the peculiar magnetic circuit. Most of all, the magnetic flux distribution must be defined in two different types of motors. Then, each structure of the motor can be used for a special purpose. To analyze these types of motor, 3-dimensional analysis is necessary for an accurate analysis due to the magnetizing component of the z-axis direction. The waveforms will be compared too.","PeriodicalId":211729,"journal":{"name":"2007 International Conference on Electrical Machines and Systems (ICEMS)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125843320","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 : 2007-12-06DOI: 10.1049/IET-RPG:20070054
Jianzhong Zhang, M. Cheng, Zhe Chen
This is paper presents a novel stator interior permanent magnet generator (SIPMG). A modular stator design is used for the convenience in manufacture and maintenance. The generator has the advantages of rugged rotor and concentrated winding design while the torque ripple is smaller than that produced by a doubly salient machine. Several low-speed multi- pole SIPMGs are designed for direct-drive wind turbines with ratings from 3 MW to 10 MW. Comparisons between SIPMG and rotor-surface-mounted permanent magnet synchronous generator (PMSG) are carried out. It is shown that the SIPMGs have about 130% torque density and 60% cost per kW compared with the PMSG.
{"title":"A novel stator interior permanent magnet generator for direct-drive wind turbines","authors":"Jianzhong Zhang, M. Cheng, Zhe Chen","doi":"10.1049/IET-RPG:20070054","DOIUrl":"https://doi.org/10.1049/IET-RPG:20070054","url":null,"abstract":"This is paper presents a novel stator interior permanent magnet generator (SIPMG). A modular stator design is used for the convenience in manufacture and maintenance. The generator has the advantages of rugged rotor and concentrated winding design while the torque ripple is smaller than that produced by a doubly salient machine. Several low-speed multi- pole SIPMGs are designed for direct-drive wind turbines with ratings from 3 MW to 10 MW. Comparisons between SIPMG and rotor-surface-mounted permanent magnet synchronous generator (PMSG) are carried out. It is shown that the SIPMGs have about 130% torque density and 60% cost per kW compared with the PMSG.","PeriodicalId":211729,"journal":{"name":"2007 International Conference on Electrical Machines and Systems (ICEMS)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125337818","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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