作者机构：
[李盛伟; 孙景钌; 金强; 李永丽; 李旭光] Key Laboratory of Smart Grid of Ministry of Education, Tianjin University, Tianjin 300072, China;[邓哲] School of Electric Engineering, University of South China, Hengyang 421001, China;[李盛伟] Tianjin Electric Power Corporation Technical Center, Tianjin 300384, China
通讯机构：
Key Laboratory of Smart Grid of Ministry of Education, Tianjin University, China
期刊：
Proceedings of 4th International Workshop on Advanced Computational Intelligence, IWACI 2011,2011年:113-119
通讯作者：
Xie, F.(xiefuqiang@smail.hust.edu.cn)
作者机构：
[Xie, Fuqiang] School of Electric Engineering, University of Souch China, Hengyang, China;[Chang, Songtao; Wang, Yongji] Department of Control Science and Engineering, Key Laboratory of Ministry of Education for Image Processing and Intelligent Control, Huazhong University of Science and Technology, Wuhan, China;[Yang, Ye] Beijing Aerospace Automatic Control Institute, Beijing, China
作者机构：
[陈文光] School of Electrical Engineering, University of South China, Hengyang 421001, China;[陈文光; 李波; 饶军; 王明伟; 雷光玖] Southwestern Institute of Physics, Chengdu 610041, China
通讯机构：
[Chen, W.-G.] S;School of Electrical Engineering, University of South China, China
作者机构：
[蒋陆萍; Zeng, Xiangjun; 李泽文] School of Electrical and Information Engineering, Changsha University of Science and Technology, Changsha 410076, Hunan Province, China;[彭安安] School of Electrical Engineering, Nanhua University, Hengyang 421001, Hunan Province, China
通讯机构：
School of Electrical and Information Engineering, Changsha University of Science and Technology, China
期刊：
Chinese Control Conference,2011年:2008-2013 ISSN：1934-1768
通讯作者：
Sheng Yifa
作者机构：
[Sheng Yifa; Liu Shengxue] Univ S China, Coll Elect Engn, Hengyang 421001, Peoples R China.
通讯机构：
[Sheng Yifa] U;Univ S China, Coll Elect Engn, Hengyang 421001, Peoples R China.
会议名称：
The 30th Chinese Control Conference(第三十届中国控制会议)
会议时间：
2011-07-01
会议地点：
烟台
会议主办单位：
[Sheng Yifa;Liu Shengxue] Univ S China, Coll Elect Engn, Hengyang 421001, Peoples R China.
会议论文集名称：
The 30th Chinese Control Conference(第三十届中国控制会议)论文集
关键词：
Urban rail transit;Interior permanent magnet synchronous motor;Efficiency-optimization;Instantaneous power control
摘要：
Based on the analysis of relationship among the power, torque and stator flux-linkage, the efficiency optimization of the interior permanent magnet synchronous motor drive system for urban rail traction based on instantaneous power control is presented during the transiently operating process of accelerating and braking region. The goal of the method is to control reactive power as zero and improve power factor at the same output of active power. Instantaneously input active and reactive power are changed by the control of stator flux amplitude and position angle to improve the system efficiency, torque output capability, and response speed. Efficiency optimization control system is implemented using a STM32F103 embedded microcontroller. The validity of the proposed strategy is proved by the simulation and experimental results.
作者机构：
[徐伟东] Institute of Electrical Engineering, Chinese Acad. of Sci., Beijing 100190, China;[姚列英; 王英翘; 徐伟东; 宣伟民; 陈文光] Southwest Institute of Physics, Chengdu 610041, China;[陈文光] University of South China, Hengyang 421001, China
通讯机构：
[Xu, W.] I;Institute of Electrical Engineering, Chinese Acad. of Sci., China
作者机构：
[刘宏立; 王彦] College of Electrical and Information Engineering, Hunan Univ., Changsha, Hunan 410082, China;[杨珂; 王彦] College of Electrical Engineering, Nanhua Univ., Hengyang, Hunan 421001, China
通讯机构：
College of Electrical and Information Engineering, Hunan Univ., China
作者机构：
[饶益花] School of Electrical Engineering, University of South China, Hengyang 421001, China;[饶军; 王明伟] Southwestern Institute of Physics, Chengdu 610041, China;[陈文光] School of Electrical Engineering, University of South China, Hengyang 421001, China<&wdkj&>Southwestern Institute of Physics, Chengdu 610041, China
通讯机构：
[Chen, W.-G.] S;School of Electrical Engineering, University of South China, China
作者机构：
[盛义发; 桂卫华; 喻寿益] School of Information Science and Engineering, Central South University, Changsha 410083, China;[盛义发; 洪镇南] School of Electrical Engineering, University of South China, Hengyang 421001, China
通讯机构：
School of Information Science and Engineering, Central South University, China
期刊：
IWJT-2010: Extended Abstracts - 2010 International Workshop on Junction Technology,2010年:210-213
通讯作者：
He, H.(hehongyu1999@yahoo.com.cn)
作者机构：
[Xueren Zheng; Hongyu He] Institute of Microelectronics, School of Electronic and Information Engineering, South China University of Technology, Guangzhou 510640, China;[Hongyu He] Faculty of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, China
会议名称：
2010 International Workshop on Junction Technology(2010国际结技术学术研讨会 IWJT 2010)
会议时间：
2010-05-10
会议地点：
上海
会议论文集名称：
2010 International Workshop on Junction Technology(2010国际结技术学术研讨会 IWJT 2010)论文集
作者机构：
[盛义发; 桂卫华; 喻寿益] Institute of Information Science and Engineering, Central South University, Changsha 410083, Hunan Province, China;[洪镇南] School of Electrical Engineering, University of South China, Hengyang 421001, Hunan Province, China
通讯机构：
Institute of Information Science and Engineering, Central South University, China
摘要：
The interior permanent magnet synchronous motor (IPMSM) can make use of the magnetoresistive effect to improve its efficiency and speed characteristics, so that it is suited to railway vehicle. To solve electromagnetic torque output insufficient of IPMSM using the traditional field weakening control method, the field weakening control strategy of interior permanent magnet synchronous motor for railway vehicle was studied in the paper. A novel method of modifying the current reference and field weakening based on the maximum electromagnetic torque at full speed (whether in the base rate areas or in the field weakening region) were proposed. The method consists of two parts, one is the determination of the field weakening region, and another is the current reference modification. The field weakening region was determined. The reference current vector and the maximum electromagnetic torque expression were obtained by solving the voltage limit equations and the current limit equations in the field weakening region I; the reference current vector was obtained by solving the voltage limit equations and the electromagnetic torque equations in the field weakening region II. The current reference was modified by the field weakening direction and the magnitude of the voltage error according to the field weakening region. The simulink model was founded by Matlab and the experiment platform of the 100 kW IPMSM field weakening control system was implemented using a TMS320LF2407A DSP. The validity of the proposed strategy was proved by the simulation and experimental results.
作者：
Guo, Wei*;Wei, Shanshan;Lu, Xingqiang;Wang, Li
期刊：
Bulletin of the Korean Chemical Society,2010年31(12):3693-3696 ISSN：1229-5949
通讯作者：
Guo, Wei
作者机构：
[Guo, Wei; Wei, Shanshan] Univ S China, Sch Elect Engn, Hengyang 421001, Peoples R China.;[Lu, Xingqiang] Univ S China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China.;[Wang, Li] Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China.
通讯机构：
[Guo, Wei] U;Univ S China, Sch Elect Engn, Hengyang 421001, Peoples R China.
关键词：
Guo, Wei;Wei, Shanshan;Lu, Xingqiang;Wang, Li;Two-step model;Rydberg states;Ponderomotive potential;Resonant/nonresonant population transfer
摘要：
We experimentally measure the kinetic energy and angular distributions of photoelectrons of N2 as a function of 410 nm femtosecond laser intensity by using velocity map imaging technique. The strong-field multiphoton ionization of molecules shares many of the characteristics with those of atoms. Electron kinetic energies are nearly independent of laser intensities. The independence suggests that the electron peaks in the photoelectron spectrum actually result from a two-step process, indicative of the occurrence of real population in the intermediate states. The relative amplitudes of electron peaks indicate that in the two-step process, nonresonant population transfer dominates for low intensities, while resonant population transfer dominates for higher intensities.
作者机构：
[陈文光] College of Electrical Engineering, University of South China, Hengyang 421001, China;[李云程] Hengyang Vacuum Electro-mechanical Equipment Ltd Co, Hengyang 421001, China;[饶益花] School of Mathematics and Physics, University of South China, Hengyang 421001, China
通讯机构：
College of Electrical Engineering, University of South China, China
作者机构：
[肖金凤; 周文振] School of Electrical Engineering, University of South China, Hengyang 421001, China;[喻寿益; 高金生] Institute of Information Science and Engineering, Central South University, Changsha 410083, China;[盛义发] School of Electrical Engineering, University of South China, Hengyang 421001, China<&wdkj&>Institute of Information Science and Engineering, Central South University, Changsha 410083, China
通讯机构：
[Sheng, Y.-F.] S;School of Electrical Engineering, University of South China, China
摘要：
The chaotic phenomena of a permanent magnet synchronous motor (PMSM) under certain circumstances were studied based on the error analysis of the stator flux observer output by parameter change of the permanent magnet synchronous motor, PMSM model with chaotic features was built, and the chaotic curves were gained based on PMSM mathematic model. A dual fuzzy controller was designed for the direct torque control (DTC) system of the PMSM. The simulation results prove that control effect on the chaotic phenomenon of the PMSM-DTC system by the dual fuzzy control is good, and the dynamic and static performances of the PMSM-DTC system will be improved. Also the ripple of torque and flux can be reduced and the response speed can be improved.
作者机构：
[喻寿益] College of Information Science and Engineering, Central South University, Changsha 410083, China;[高嵩; 唐耀庚] School of Electrical Engineering, University of South China, Hengyang 421001, China;[李兰君] College of Information Science and Engineering, Central South University, Changsha 410083, China, School of Electrical Engineering, University of South China, Hengyang 421001, China
通讯机构：
[Li, L.-J.] C;College of Information Science and Engineering, Central South University, China
期刊：
Proceedings of the 27th Chinese Control Conference, CCC,2008年:672-675
通讯作者：
Sheng Yifa
作者机构：
[Sheng Yifa; Hong Zhennan] Univ South China, Sch Elect Engn, Hengyang 421001, Peoples R China.;[Sheng Yifa; Yu Shouyi] Cent South Technol, Sch Informat Sci & Engn, Changsha 410083, Peoples R China.
通讯机构：
[Sheng Yifa] U;Univ South China, Sch Elect Engn, Hengyang 421001, Peoples R China.
会议名称：
27th Chinese Control Conference, CCC
会议时间：
July 16, 2008 - July 18, 2008
会议地点：
Kunming, Yunnan, China
关键词：
Permanent Magnet Synchronous Motor;Direct Torque Control;Torque ripple;Stator Current
摘要：
Based on analysing the factors that cause torque ripple and analysing the nonzero demagnetism/in magnetism component in stator current for the typical direct torque control system of the permanent magnet synchronous motor, this paper presents a novel control system which directly controls the magnetizing component of the stator current with two-level bang-bang controller.The improvement eliminated the component which in the stator current did not hope, enhanced the exchange transmission system efficiency. It is simple and easy to implement. The simulation results indicate static and dynamic performance of the new system is improved and torque ripple is decreased, simultaneously still retains the better control performance and higher efficiency than the typical direct torque control system.
作者机构：
[张美琴; 谢菊英; 俞红; 赵修良] School of Nuclear Science and Technology, Nanhua University, Hengyang 421001, China;Department of Physics and Electronic Information Science, Hengyang Normal University, Hengyang 421008, China;[赵艳辉] School of Electrical Engineering, Nanhua University, Hengyang 421001, China;[黄顺] School of Nuclear Science and Technology, Nanhua University, Hengyang 421001, China, Department of Physics and Electronic Information Science, Hengyang Normal University, Hengyang 421008, China
通讯机构：
[Huang, S.] S;School of Nuclear Science and Technology, Nanhua University, China
