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| 1 | Waveform diversity based sonar system for target localization显示文摘A new monostatic array system taking advantage of diverse waveforms to improve the performance of underwater target localization is proposed.Unlike the coherent signals between different elements in common active array,the transmitted signals from different elements here are spatially orthogonal waveforms which allow for array processing in the transit mode and result in an extension of array aperture.The mathematical derivation of Capon estimator for this sonar system is described in detail.And the performance of this orthogonal-waveform based sonar is analyzed and compared with that of its phased-array counterpart by water tank experiments.Experimental results show that this sonar system could achieve 12 dB-15 dB additional array gain over its phased-array counterpart,which means a doubling of maximum detection range.Moreover,the angular resolution is significantly improved at lower SNR. | Lijie Zhang dianguo Huang Yong Jin Yunshan Hou Min Jiang Qunfei Zhang | 2010 | Journal of Systems Engineering and Electronics2010，21，2： | 6 |
| 2 | Multi-objective energy management system for DC microgrids based on maximum membership degree principle显示文摘With the increasing quantity of DC electrical equipment, DC microgrids have been paid more and more attention. This paper proposes an approach to multi-objective optimisation of an energy management system(EMS) for a DC microgrid that includes a hybrid energy storage system(HESS). The operating and maintenance cost and the loss of power supply probability(LPSP) of the system are used as optimisation targets. The power flows of all distributed generators(DGs) in the DC microgrid during operating period are optimized. Based on the improved differential evolution(DE) algorithm, and by using the multi-objective non-dominated sorting method and the maximum membership degree principle(MMDP) of fuzzy control, the overall satisfaction degree of Pareto solutions to power flow optimization can be obtained. Simulation results verify the effectiveness of the proposed EMS optimization scheme, which is able to achieve an effective trade-off between the economy and the reliability of microgrid operation. | Panbao WANG Wei WANG Nina MENG Dianguo XU | 2018 | Journal of Modern Power Systems and Clean Energy2018，6，4： | 6 |
| 3 | Rainfall Microphysical Properties of Landfalling Typhoon Yagi(201814)Based on the Observations of Micro Rain Radar and Cloud Radar in Shandong,China显示文摘The development and evolution of precipitation microphysical parameters and the vertical structure characteristics associated with Typhoon Yagi(201814)are analyzed in the city of Jinan,Shandong Province based primarily on the observations of a micro rain radar(MRR),a cloud radar,and a disdrometer.The precipitation process is further subdivided into four types:convective,stratiform,mixed,and light precipitation according to the ground disdrometer data,which is in agreement with the vertical profile of the radar reflectivity detected by the MRR.Vertical winds may be the main source of MRR retrieval error during convective precipitation.Convective precipitation has the shortest duration but makes the largest contribution to the cumulative precipitation.Collision-coalescence is the main microphysical process of stratiform precipitation and light precipitation below the bright band observed by the MRR.It is worth noting that as Typhoon Yagi(201814)transformed into an extratropical cyclone,its raindrop size distributions no longer had the characteristics of maritime precipitation,but become more typical of the characteristic of continental precipitation,which represents a very different raindrop size distribution from that which is normally observed in a landfalling typhoon. | Hong WANG Wenqing WANG Jun WANG Dianli GONG Dianguo ZHANG Ling ZHANG Qiuchen ZHANG | 2021 | Advances in Atmospheric Sciences2021，38，6： | 6 |
| 4 | Distributed consensus algorithm for networked Euler-Lagrange systems with self-delays and uncertainties显示文摘A distributed coordinated consensus problem for multiple networked Euler-Lagrange systems is studied. The communication between agents is subject to time delays, unknown parameters and nonlinear inputs, but only with their states available for measurement. When the communication topology of the system is connected, an adaptive control algorithm with selfdelays and uncertainties is suggested to guarantee global full-state synchro-nization that the difference between the agent's positions and ve-locities asymptotically converges to zero. Moreover, the distributed sliding-mode law is given for chaotic systems with nonlinear inputs to compensate for the effects of nonlinearity. Finally, simulation results show the effectiveness of the proposed control algorithm. | Xu Zhu dianguo Yan Yaohong Qu | 2012 | Journal of Systems Engineering and Electronics2012，23，6： | 3 |
| 5 | A Review of Sensorless Control Methods for AC Motor Drives显示文摘In recent years,the application of sensorless AC motor drives is expanding in areas ranging from industrial applications to household electrical appliances.As is well known,the advantages of sensorless motor drives include lower cost,increased reliability,reduced hardware complexity,better noise immunity,and less maintenance requirements.With the development of modern industrial automation,more advanced sensorless control strategies are needed to meet the requirements of applications.For sensorless motor drives at low-and zero-speed operation,inverter nonlinearities and motor parameter variation have significant impact on the stability of control system.Meanwhile,high observer’s bandwidth is required in high-speed region.This paper introduces the state of art of recent progress in sensorless AC motor drives.In addition,this paper presents the sensorless control strategies we investigated for practical industrial and household applications.Both advanced sensorless drives of induction motor(IM)and permanent magnet synchronous motor(PMSM)are presented in this paper. | Dianguo Xu Bo Wang Guoqiang Zhang Gaolin Wang Yong Yu | 2018 | CES Transactions on Electrical Machines and Systems2018，2，1： | 3 |
| 6 | Saliency-Based Position Sensorless Control Methods for PMSM Drives-a Review显示文摘Permanent magnet synchronous motor(PMSM)drives are finding expanded use for industrial and domestic drive applications.With the distinguished characteristics such as reduced cost and increased reliability and robustness,position sensorless(self-sensing)control techniques have been good candidates for reliable and costless PMSM drives.The saliency-tracking based techniques further bring the expansion of applications with the extended controllable sensorless operating speed range.This paper presents a review on state of the art techniques for position sensorless drives using the saliency-tracking based methods.The signal injection methods and the future scope of research including the dynamic bandwidth improvement and the acoustic noise reduction are discussed. | Guoqiang Zhang Gaolin Wang Dianguo Xu | 2017 | Chinese Journal of Electrical Engineering2017，3，2： | 3 |
| 7 | Review of Parameter Identification and Sensorless Control Methods for Synchronous Reluctance Machines显示文摘Synchronous reluctance machines(SynRMs)have drawn increasing attention in recent years owing to their advantages such as low cost,simple structure,ease of manufacture,and high robustness.The main obstacle to the promotion of SynRMs is severe parameter nonlinearity,which deteriorates drive performance.Sensorless control methods for SynRMs are critical technologies that can broaden the industrial applications of SynRMs.Various methods of parameter identification and sensorless control strategies are reviewed and discussed,including self-commissioning,which is analyzed in detail.Furthermore,sensorless control strategies that can improve the industrial application of SynRMs are described.Finally,future research trends concerning SynRMs are analyzed and discussed. | Chengrui Li Gaolin Wang Guoqiang Zhang Nannan Zhao Dianguo Xu | 2020 | Chinese Journal of Electrical Engineering2020，6，2： | 2 |
| 8 | Analysis on Causes of Scaling in Flue Gas Turbine of FCCU and Countermeasures显示文摘Causes of scale deposition in flue gas turbine expander of FCCU were analyzed based on some aspects,including the types and operating conditions of flue gas turbines,properties and composition of feedstocks and catalysts,and operating conditions of the reactor and regenerator.Some countermeasures were proposed for preventing scale deposition in flue gas turbine of FCCU. | Hou Dianguo | 2011 | China Petroleum Processing & Petrochemical Technology2011，13，2： | 2 |
| 9 | Commercial Application of CPP for Producing Ethylene and Propylene from Heavy Oil Feed显示文摘A new process named CPP (Catalytic Pyrolysis Process) for producing ethylene andpropylene from heavy oil feedstock has been developed. The catalyst CEP was specially designedfor this process, which has bi-functional catalytic activities for both carbonium ion reaction andfree radical reaction, so as to maximize the yields of ethylene and propylene. The commercial trialshowed that the yield of ethylene and propylene was 20.37% and 18.23% respectively inmaximum ethylene operation with Daqing AR as feedstock, and the yield of ethylene and propylenewas 9.77% and 24.60% respectively in maximum propylene operation by using the same feedstock.Compared with steam cracker, the feed cost of CPP is much lower for producing ethylene andpropylene. | Hou Dianguo Xie Chaogang Wang Xieqing(Research Institute of Petroleum Processing, Beijing 100083) | 2003 | China Petroleum Processing & Petrochemical Technology2003，5，1： | 2 |
| 10 | Development and Commercial Application of RFCC Catalyst for Reducing Sulfur Content in Gasoline显示文摘减少硫的功能的部件 -- 吊楔酸硷的对化合物 -- 并且联系活跃沸石部件被开发为在汽油减少硫内容准备 RFCC 催化剂 DOS。催化剂评估的结果表明了酸硷的对化合物在此开发了的吊楔能提高分子的硫由催化剂加重支持 desulfurization 反应继续的宏的变换,并且酸硷的对化合物能毫无疑问减少的选择沸石和吊楔的合作行动在汽油的石蜡和硫内容。因此开发的催化剂 DOS 的重油变换能力更高结合了一个提高的电阻到重金属污染在超过 20% 在汽油减少硫内容。在西诺佩克·久贾恩格·布朗奇公司的这催化剂的商业应用程序表明了与 GRV-C 催化剂相比,催化剂 DOS 获得的油泥浆收益在汽油与一种改进 cok e 选择,增加的全部的液体收益,和一个减少的石蜡内容一起被减少。在汽油 / 硫在的硫的比率喂油能被 20.3 m% 减少。 | Xu Mingde Zhu Yuxia Huang Lei Hou Dianguo | 2007 | China Petroleum Processing & Petrochemical Technology2007，9，4： | 2 |
| 11 | Structure and properties of nanoporous FePt fabricated by dealloying a melt-spun Fe(60)Pt(20)B(20)alloy and subsequent annealing显示文摘A nanoporous FePt alloy has been fabricated by dealloying a melt-spun Fe(60)Pt(20)B(20)alloy composed of nanoscale amorphous and face-centered-cubic FePt(fcc-FePt)phases in H2 SO4 aqueous solution.The nanoporous alloy consists of single fcc-FePt phase with an Fe/Pt atomic ratio of about 55.3/44.7,and possesses a uniform interpenetrating ligament-channel structure with average ligament and pore sizes of 27 nm and 12 nm,respectively.The nanoporous fcc-FePt alloy shows soft magnetic characteristics with a saturation magnetization of 37.9 emu/g and better electrocatalytic activity for methanol oxidation than commercial Pt/C in acidic environment.The phase transformation from disordered fcc-Fe Pt into ordered face-centered-tetragonal FePt(L10-FePt)in the nanoporous alloy has been realized after annealing at823-943 K for 600 s.The volume fraction of the L10-FePt phase in the alloy increases with the rise of annealing temperature,which results in the enhancements of coercivity and saturation magnetization from 0.14 kOe and 38.5 emu/g to 8.42 kOe and 51.4 emu/g,respectively.The ligament size of the samples is increased after annealing. | Dianguo Ma Yingmin Wang Yanhui Li Rie Y·Umetsu Shuli Ou Kunio Yubuta Wei Zhang | 2020 | Journal of Materials Science & Technology2020，36，1： | 2 |
| 12 | A multipurpose image watermarking method for copyright notification and pro-tection 显示文摘 | Lu Zheming Wu Haotian Xu Dianguo | 2003 | IEICE Transactions on Information and Systems2003，86，9： | 1 |
| 13 | Multipurpose Image Watermarking Algorithm Based on Multistage Vector Quantization显示文摘 | Lu Zheming Xu Dianguo Sun Shenghe | 2005 | IEEE Transactions on Image Processing2005，14，6： | 1 |
| 14 | Multipurpose Image Watermarking Algorithm Based on Multistage Vector Quantization,Image Processing显示文摘 | Lu Zheming Xu Dianguo Sun Shenghe | 2005 | IEEE Transactions on Image Processing2005，14，6： | 1 |
| 15 | Research on Speed Sensorless Vector Control of Induction Motor Based on Stator Flux Orientation显示文摘 | Yu Yong Song Hailong Xu Dianguo | 2002 | IEEE 33rd Annual Power Electronics Specialists Conference2002，2，2： | 1 |
| 16 | Speed and current sensors fault detection and isolation based on adaptive observers for induction motor drivers显示文摘 | Yu Yong Wang Ziyuan Xu Dianguo | 2014 | Journal of Power Electronics2014，14，5： | 1 |
| 17 | Digital image watermarking technique base on vector quantization with labeled codewords显示文摘 | LU ZHENGMING XING WEN XU DIANGUO | 2003 | IEICE Transation on Information and System2003，86，12： | 1 |
| 18 | DSP-based control of sensorless IPMSM drives for wide speed range operation显示文摘 | Wang Gaolin Yang Rongfeng Xu Dianguo | 2013 | IEEE Transactions on Industrial Electronics2013，60，2： | 1 |
| 19 | Dsp- based control of sensorless IPMSM drives for wide- speed-range operation 显示文摘 | WANG Gaolin YANG Rongfeng XU Dianguo | 2013 | IEEE Transactions on In- dustrial Electronics2013，60，2： | 1 |
| 20 | Semi-fragile image watermarking method based on index constrained vectorquantization 显示文摘 | Lu Zheming Liu Chunhe Xu Dianguo | 2003 | IEE Electronics Letters2003，39，1： | 1 |
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