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Annual Conference on IEEE Industrial Electronics Society

作者： R. Z. Azzolin T. A. Bernardes R. P. Vieira C. C. Gastaldini H. A. Grundling Federal University of Rio Grande - FURG Federal University of Santa Maria - UFSM Power Electronics and Control Research Group - GEPOC Federal University of Pampa - UNIPAMPA

ISBN: (纸本)9781467324199

Vector control has improved the performance and energy efficiency in SPIM drives. However, high current and torque pulsations are produced by winding asymmetry of SPIM. This paper proposes a decoupling scheme to reduce the current and torque pulsations and improve the performance of vector control. A stator current observer is used to estimate the coupling signals, which are compensated by control law. This method is an alternative to improve the performance of single-phase induction motor used in hermetic refrigeration systems. The thermal efficiency of refrigeration system can be improved by the variable speed operation and the advantages of robustness and low-cost of single-phase induction motor can be maintained.

关键词： decoupling algorithm Single-phase induction motor Stator current observer Vector control

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The Intelligent Leg Design for Cockroach Robots Based on Differential Gear Structure

The Intelligent Leg Design for Cockroach Robots Based on Dif...

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6th IEEE Conference on Industrial Electronics and Applications (ICIEA)

作者： Liu, Jingmeng Jiang, Jun Chen, Weihai Chen, Wenjie Beijing Univ Aeronaut & Astronaut Sch Automat Sci & Elect Engn Beijing 100191 Peoples R China Singapore Inst Mfg Technol Singapore 638075 Singapore

ISBN: (纸本)9781424487554

In the design of cockroach robots, a major requirement is to increase the carrying capacity of the robots. This paper proposes a novel configuration for the leg design of cockroach robots. In this configuration, the operating principle of a differential gear in a car is used in the design of multi-legged robots, so the carrying capacity is doubled at the same situation, compared with conventional linkage based robots. Firstly, the movement performance of the mechanism, including the inverse kinematics is analyzed and a decoupling algorithm is presented to control the prototype. Secondly, the working space and carrying capacity is calculated and analyzed. Then the whole model is simulated by the combination of MATLAB and ADAMS. The result of the simulation shows an improved performance, which indicates that the mechanism design is reasonable and the analysis is correct.

关键词： multiplication differential gear simulation decoupling algorithm ADAMS

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Performance of an Adaptive Optics System with Dual Deformable Mirrors

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Journal of Electronic Science and Technology of China 2009年第3期7卷 277-280页

作者： Shi-Jie Hu Depamnent of Optics and Electronics University of Electronics Science and Technology of China Chengdu 610054 China Institute of Optics and Electronics Chinese Academay of Science Chengdu 610209 China

One deformable mirror （DM） in conventional adaptive optics system can not meet the needs of large scale and high order aberration compensation. In this paper, a dual DMs way is presented, which needs the decoupling of dual DMs. In dual DMs adaptive optics （AO） system, the decoupling algorithm of dual DMs is deduced. Stroke of one of DMs is large, spatial frequency of the other is high. According to the algorithm, the large stroke DM （LSDM） corrects low order aberration only, and the high spatial frequency DM （HSFDM） corrects other aberration. The experimental result for two 61-DM AO system is presented. The result indicates that the experimental performance of dual DMs AO system is almost the same with that of the conventional AO system using single DM with ideal stroke and equivalent spatial frequency.

关键词： Aberration compensation adaptiveoptics decoupling algorithm deformable mirror,experimental result

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Experiment of double deformable mirrors adaptive optics system for phase compensation

Experiment of double deformable mirrors adaptive optics syst...

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Conference on MEMS Adaptive Optics

作者： Hu, Shijie Chen, Shanqiu Xu, Bing Yang, Ping Cai, Dongmei Wu, Jian Jiang, Wenhan Chinese Acad Sci Inst Opt & Elect Chengdu 610209 Peoples R China Univ Elect Sci & Technol China Chengdu 610054 Peoples R China

ISBN: (纸本)9780819465801

For some adaptive optics (AO) systems, one deformable mirror (DM) can not meet the need of large stroke and high spatial frequency. In this paper, a double DMs way is present. In this system, a large stroke DM (LSDM) with low spatial frequency corrects low order aberrations and a high spatial frequency DM (HSFDM) with small stroke corrects high order aberrations. The decoupling algorithm of two DMs is essential for working properly. In this paper, a decoupling algorithm and experimental results for a double DM AO system are presented. The result indicates that the compensation result of double DMs AO system is almost the same as that of the conventional AO system using single DM with ideal stroke and equivalent spatial frequency.

关键词： adaptive optics double DMs decoupling algorithm gradient response furiction

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Study on decoupling algorithm of Strapdown Imaging Guidance System

Study on Decoupling Algorithm of Strapdown Imaging Guidance ...

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首届亚洲机械电子学学术会议

作者： Zhang Guojiang Yao Yu Fang qiang Control & Simulation Center,Harbin Institute of Technology,Harbin 150001,China

The measurements of strapdown imaging seeker are based on body coordinate ***'s attitude motion information is contained within the measured body line of sight(LOS)angles,but LOS rates relative to inertial coordinate are needed for the practical guidance ***,strapdown decoupling for measured signal is essential so as to remove the body attitude information from the *** this paper, the decoupling algorithm is proposed and simulation is performed to show the validation of the decoupling algorithm.

关键词： Strapdown Imaging Guidance decoupling algorithm Simulation Validation

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Research of Controller for Active Magnetic Bearings System

Research of Controller for Active Magnetic Bearings System

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第二届亚洲机械电子学学术会议

作者： Chunguang Xu Hui Huang Dongming Lv Juan Hao Yi Ding Dongming Lv School of Vehicle and Mechanical Engineering,Beijing Institute of Technology,Beijing,China,100081

In this paper the research is about models and controllers for active magnetic bearing(AMB) *** paper designs distributed controllers, performing the rotating accuracy experiments in the AMB ***,the problem was analyzed that the controlling effect is not good for higher speed rotors,and new solving method was provided based on the decoupling control *** simulation conclusion proves that the decoupling method made the better dynamic and static characteristics.

关键词： magnetic bearing distributed controller decoupling algorithm integrated control method

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A six-component force/moment sensor with simple structure and high performance

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SENSOR LETTERS 2005年第4期3卷 309-314页

作者： Huang, RJ Fan, XQ Jia, K Lu, ZW Wang, LH Huazhong Univ Sci & Technol Sch Mech Sci & Engn Wuhan 430074 Peoples R China Nanyang Inst Technol Mechatron Engn Dept Nanyang 473066 Peoples R China

This paper presents a novel six-component force/moment sensor for measuring F-x, F-y, F-z and moments M-x, M-y, M-z simultaneously. In order to minimize interference errors and to construct easily, the sensor adopts only eight thin plate beams as sensing elements and each beam is attached to only one strain gauge, making the total number of plate beams and strain gauges much fewer than previous ones known to the authors. Its operating principle and measuring circuits are described, and the decoupling algorithm is derived. Finite Element analysis (FEA) and measured calibration demonstrate that the sensor bears merits such as small crosstalk, high sensitivity, and fine linearity.

关键词： six-component force/moment sensor finite element analysis decoupling algorithm

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decoupling algorithm in view of multivariable electrical drives control

Decoupling algorithm in view of multivariable electrical dri...

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20th Annual American Control Conference (ACC)

作者： Benkhoris, MF Tali-Maamar, N Terrien, F CRTT Lab Atlantique Rech Genie Elect F-44602 St Nazaire France

ISBN: (纸本)0780372980

This paper deals with decoupling algorithm in view of control of multivariable electrical drive which concern multi star synchronous motor (NSSM) supplied by PWM inverters. This electrical drive is nonlinear and multivariable. The developed approach allows using conventional regulators. Two algorithms, based on diagonalization of transfer matrix and compensation of rotating terms are established. Proposed methods are applied, to the double star synchronous machine (DSSM).

关键词： multivariable systems diagonalization decoupling algorithm multi star synchronous motor modeling

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decoupling joint probabilistic data association algorithm for multiple target tracking

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IEE PROCEEDINGS-RADAR SONAR AND NAVIGATION 1999年第5期146卷 251-254页

作者： Ding, Z Leung, H Hong, L Raytheon Syst Canada Ltd Adv Syst Dev Waterloo ON N2J 4K6 Canada Univ Calgary Dept Elect & Comp Engn Calgary AB T2N 1N4 Canada Wright State Univ Dept Elect Engn Dayton OH 45435 USA

The authors present a decoupling joint probabilistic data association (DJPDA) algorithm by decoupling the JPDA algorithm into separate PDA algorithms. To demonstrate the decoupling idea, they derive a set of complete decoupling PDA equations for two and three targets. Since these equations are impractical for real-time systems and are unavailable for an arbitrary number of targets, an approximate algorithm is given. The proposed decoupling algorithm is evaluated using computer simulation. It is shown that the performance of the DJPDA algorithm is close to that of the JPDA. algorithm but it needs much less computation.

关键词： decoupling algorithm approximate algorithm decoupling joint probabilistic data association algorithm PDA algorithms target tracking JPDA algorithm covariance matrices Signal processing and detection multiple target tracking Other topics in statistics probability computer simulation

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A FINITE-ELEMENT SOLUTION OF THE SHALLOW-WATER WAVE-EQUATIONS

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APPLIED MATHEMATICAL MODELLING 1990年第1期14卷 20-29页

作者： UTNES, T Norwegian Hydrotechnical Laboratory Trondheim Norway

A finite element method is presented for the solution of the shallow-water wave equations. The method is characterized by a semi-implicit decoupling algorithm; the grid is composed of isoparametric, biquadratic elements; and the interpolation is mixed, with biquadratic velocity and bilinear elevation. Several test cases are presented to demonstrate the ability of the method, including a simulation of internal waves in Lake Mjøsa.

关键词： finite elements decoupling algorithm shallow-water equations

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