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《Machine Tool & Hydraulics》 2014-05
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Method Study of Superimposing Independent Dither to Electro-hydraulic Proportional Valve

LIU Guoping;XIA Wuxing;QI Dawei;HU Ronghua;College of Mechanical and Electrical Engineering,Nanchang University;  
Plus Width Modulation( PWM) is widely used in proportional control systems for its characteristics of efficient,flexible and strong ability of anti-interference. Due to the friction and hysteresis of electromagnet,hysteresis phenomenon was caused to exist in characteristics of hydraulic valve in steady-state,and the dynamic response performance of the valve was seriously influenced by the hysteresis. The relatively effective method of reducing the hysteresis was by superimposing dithers with certain frequency and amplitude to the diving signal,currently,changing the duty ratio of PWM was widely used to implement the superimpose dither to the signal. Through both the theoretical deducing and experimental study,it proves that dither with independent adjustable frequency and amplitude can be generated by changing the frequency of the PWM,in this way of superimposing dithers,the average current of electromagnet and dither current can be controlled independently by the duty ratio and frequency of PWM separately.
【CateGory Index】: TH137.52
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【Citations】
Chinese Journal Full-text Database 2 Hits
1 GONG Wenbin, LIU Xinhui, SUN Yanwei (College of Mechanical Science and Engineering,Jilin University,Changchun 130025,China);Method of electronic-hydraulic proportion control[J];Journal of Jilin University of Technology(Natural Science Edition);2003-03
2 ZHU Yutian TANG Xinghua(College of Mechanical Engineering, Tongji University, Shanghai 201804);Dither Algorithm in Pulse Width Modulation[J];Journal of Mechanical Engineering;2009-04
【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 LI Jia-rui,YUE Ping-sheng,FAN Yong-ming (Seamless Tube Plant of Steel Union Co.Ltd.of Baotou Steel(Group)Corp.,Baotou 014010,Nei Monggol,China);Analysis for Hydraulic System of Chuck on PMC Colinet Coupling Threading Machine[J];Science & Technology of Baotou Steel;2011-03
2 Wang Shangyong;Cai Shemin;Cheng Changqi(Beijing Institute of Technology, Beijing 100081);The Design of High Speed Solenoid Valve in Diesel Electronic Fuel control System[J];;1996-02
3 Zhang Mingzhu1,2(1.China University of Mining & Technology(Beijing),Beijing,100083,China;2.Beijing Polytechnic College,Beijing 100042,China);Symmetrical Adjustment in Electrical-Liquid Control Based on PLC[J];Journal of Beijing Polytechnic College;2007-03
4 Zhang Mingzhu(Beijing Polytechnic College,Beijing 100042,China);Realization on Electrical-hydraulid Control System of Raise Boring Machine[J];Journal of Beijing Polytechnic College;2008-01
5 nix if Department of Mechanical Engineering;Static Simulation of Hydraulic Systems[J];Journal of University of Science and Technology Beijing;1992-05
6 Li Guoxiu Zhang Youtong Wang Shangyong Li Tieshuan Cheng Changqi(School of Vechicular Engineering,Beijing Institute of Technology,Beijing 100081));The EMA Used in the Electronic Control System of High Speed Diesel Engines[J];JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY;1997-05
7 Zhang Deming;DCT液压系统建模及特性分析[J];Beijing Automotive Engineering;2012-01
8 YANG Yihua, CHEN Jiang Department of Precision Instruments, Tsinghua University. P. R. China;Differential Pressure Based Mini-Volume Pneumatic Flow Measurement[J];Journal of Test and Measurement Technology;1998-03
9 YANG Yihua and WANG Dian Department of Precision Instruments. Tsinghua University. P. R. China;The Multi-Channel Scanned Pneumatic Pressure Measurement Technology[J];Journal of Test and Measurement Technology;1998-03
10 Yang Jianjion (Department of Mechanic and Electric Equipment) Wang Lajiu (Department of Automotive Application Engineering) Wu Jun (Department of Mechanic and Electric Equipment);THE DEVELOPMENT OF ELECTRO-HYDRAULIC PROPORTIONAL CONTROLLED WAVE-MAKING MACHINE YB1×1.2[J];Journal of Changsha Communications University;1992-02
China Proceedings of conference Full-text Database 5 Hits
1 Li Yanjie;Zhang Yu (School of Mechanical Engineering,Shenyang Li gong University,Shenyang 110159);The Modeling and Simulation of B-type Hydraulic Half Bridge Based on AMESim[A];[C];2011
2 Yao Lei Jin Xia-jie Xing Ke-Li Zhang Guo-xian (College of Mechatronics Engineering and Automation, Shanghai University, Shanghai 200072);The Design of Electro-hydraulic Proportion Controller Based on FPGA[A];[C];2008
3 JI Hong1 ZHANG Ji-huan1 WANG Dong-sheng1 ZHANG Wei1 Shohei Ryu2(1.College of Fluid Power and Control Engineering,Lanzhou University of Technology,Lanzhou 730050;2.Technical Research Center,Hitachi Construction Machinery Co.,Ltd,3000013,Japan);Flow coefficient of rectangular notch orifice in spool valve[A];[C];2010
4 QIU Yan-feng YU Li-juan LIU Rong-sheng GAO Ying-jie(Hebei Key Laboratory of Heavy Machinery Fluid Power Transmission and Control,Yanshan University,Hebei,Qinhuangdao,066044);Research on Electro-hydraulic Control Technology of Intelligent Pump Car[A];[C];2010
5 Guo Gang Chen Xingming (PLA University of Science and Technology Nanjing 210007 China);Soft Measuring Method of Pressure in a Valve Controlled Cylinder System[A];[C];2008
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