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A Lyapunov-Function-Based Control for Three-Level Shunt Active Power Filter Using Feedback Linearization 会议论文
2018 CHINA INTERNATIONAL CONFERENCE ON ELECTRICITY DISTRIBUTION (CICED), 2018-01-01
作者:  Zhu, Xun;  Wang, Yong;  Hu, Juan
收藏  |  浏览/下载：3/0  |  提交时间：2019/12/30
Cascaded Model Predictive Control of Three-Level NPC Back-to-Back Power Converter PMSG Wind Turbine Systems 会议论文
IEEE International Power Electronics and Application Conference and Exposition (IEEE PEAC), NOV 04-07, 2018
作者:  Cui, Zhufeng;  Zhang, Zhenbin;  Yang, Qifan;  Kennel, Ralph
收藏  |  浏览/下载：3/0  |  提交时间：2019/12/31
Efficient Predictive Control of PMSM Drives Fed by 3L-NPC Power Converters: A Cyber Physical System Approach 会议论文
Chinese Automation Congress (CAC), OCT 20-22, 2017
作者:  Zhang, Zhenbin;  Lu, Zeren;  Sun, Bo
收藏  |  浏览/下载：4/0  |  提交时间：2019/12/31
IGBT Open-Circuit Fault Diagnosis for Closed-Loop System of Three-Level NPC Inverters 会议论文
International Conference on Electrical and Information Technologies for Rail Transportation - Electrical Traction, China Electrotechn Soc, Elect Equipment Technol Comm Rail Transportat, Zhuzhou, PEOPLES R CHINA, 2015-10-17
作者:  Zhang, Ming;  Guo, Yuanbo;  Huang, Kai;  Li, Lin;  Zhang, Xiaohua
收藏  |  浏览/下载：5/0  |  提交时间：2019/12/09
A brightness and color correction method of LED display based on CCD camera (EI CONFERENCE) 会议论文
2012 International Applied Mechanics, MechatronicsAutomation and System Simulation Meeting, AMMASS 2012, June 24, 2012 - June 26, 2012, Hangzhou, China
Zhao Z.; Wang R.
收藏  |  浏览/下载：16/0  |  提交时间：2013/03/25
The correction methods of LED displays are aiming to address the uniform issues which includes brightness aspect and color aspect. The correction method use a 33 correction coefficients matrix to reshape the pulse width of each LED. To calculate the correction coefficients  a linear system is established  which includes a color CCD and a LED display. And a correction algorithm is introduced based on the color CCD. This algorithm describes the relationships of the main color components of a LED  when the gray level of a LED is increasing or decreasing  the three main color components would change according to the correction coefficients. The results shows that the correction based on this algorithm improved the performance of LED displays. (2012) Trans Tech Publications  Switzerland.  
Experiment design of coupled water tanks based on network control system-4000 会议论文
Electronic Commerce, Web Application and Communication, ECWAC 2012, Wuhan, China, March 17-18, 2012
作者:  Wei LF(魏立峰);  Li, Yuzhang;  Liu XM(刘晓梅);  Yuan MZ(苑明哲)
收藏  |  浏览/下载：20/0  |  提交时间：2012/10/24
Short-length large-mode-area photonic crystal fiber laser operating at 978 nm 会议论文
the second international symposium on laser interaction with matter (limis 2012), xi’an, china, 2012
Jing He; Ziwei Wang; Wendi Wu; Songtao Du
收藏  |  浏览/下载：8/0  |  提交时间：2013/09/13
The application of diagnostic equipment in the Tokamak fusion reaction (EI CONFERENCE) 会议论文
2011 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments, November 6, 2011 - November 9, 2011, Beijing, China
Zhang B.-S.; Chang J.; Gong X.-Z.; Gan J.-F.; Feng S.-L.
收藏  |  浏览/下载：13/0  |  提交时间：2013/03/25
This paper introduces the infrared optical system in the Tokamak fusion reaction device. In this optical system  3.the relay group lenses. This paper describes the decrease of the modulation transfer function (MTF) when the temperature changes and how to compensate the decrease of the MTF in order to maintain the image quality in a high level. As a result  the traditional optical structure can't meet the requirements  2.the Cassegrain system  the image quality of this optical system can reach the requirements when the temperature changes. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).  because the length of the infrared optical system in the Tokamak is very long. The design of optical system in the detection facility includes three parts:1.the combination of the concave aspheric mirror and flat mirror  
Development and radiance calibration of three-waveband camera (EI CONFERENCE) 会议论文
International Symposium on Photonics and Optoelectronics, SOPO 2010, June 19, 2010 - June 21, 2010, Chengdu, China
Lu Z.; Sun Q.; Wang J.; Lu Z.; Liu Y.
收藏  |  浏览/下载：23/0  |  提交时间：2013/03/25
An imaging system with three-waveband sharing one lens and an area CCD was developed. By rotating different filters into the beam path  the required waveband was selected. The optical system which can image in ultraviolet  visible and near infrared region was designed and the signal collecting system was integrated. The optical design and system integration have some advantages such as low cost  small size and light in weight. To obtain a high imaging quality  the radiation calibration is carried out in order to establish the relation between the average grey level of output image and the input radiance from the integrating sphere. According to the calibration data in experiments  the radiation dynamic range and the best working point of the system are determined. The experiment result shows that the dynamic range of the image system is maximal when the exposure time is 8ms in ultraviolet  0.5ms in visible and 0.125ms in near infrared region. 2010 IEEE.  
Application of multi-sensors parallel fusion system in photoelectric tracing (EI CONFERENCE) 会议论文
2008 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Applications, November 16, 2008 - November 19, 2008, Beijing, China
Cheng G.-Y.; Cai S.; Gao H.-B.; Zhang S.-M.; Qiao Y.-F.
收藏  |  浏览/下载：15/0  |  提交时间：2013/03/25
To solve the real-time and reliability problem of tracking servo-control system in optoelectronic theodolite  a multisensors parallel processing system was proposed. Misdistances of three different wavebands were imported into system  and then prediction was done in DSP1 to get the actual position information. Data fusion was accomplished in PPGA imported by multi channel buffer serial port. The compound position information was used to control the theodolite. The results were compared with external guide data in DSP2 to implement correction of above calculation  and then were imported to epistemic machine through PXI interface. The simulation experiment of each calculation unit showed that this system could solve the real-time problem of feature level data fusion. The simulation result showed that the system can satisfy the real-time requirement with 1.25ms in theodolite with three imaging systems  while sampling frequency of photoelectric encoder was 800 Hz. 2009 SPIE.  

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