基于前馈补偿策略的制粒湿度控制方法及其应用
详细信息    本馆镜像全文|  推荐本文 |  |   获取CNKI官网全文
摘要
制粒作为冶炼等行业烧结系统中的关键工序之一,其出料湿度控制直接影响了烧结的品质。由于控制系统中湿度测量反馈存在较大时滞、进料湿度的波动比较明显,一般的方法难以满足控制要求,因而需要先进的控制方法。
     本文通过分析制粒湿度控制系统的控制要求,针对湿度控制系统大时滞特点,提出了基于前馈补偿策略的制粒湿度控制方法,并将该方法实际应用于韶关冶炼厂制粒喷水控制系统中。构建了有前馈补偿的改进型继电反馈控制系统模型,设计了系统控制器,进行了系统控制模型仿真;完成了软硬件设计,组建了由电控阀、水分仪、PLC及工控机组成的上、下位机控制系统,并阐述了系统的具体实现过程和方法;基于WINCC软件组态实现了制粒湿度的数据采集、自动控制、远程监控和报警等功能。
     实际运行和测试的结果表明,此控制系统抗扰动能力强、制粒湿度稳定性好,烧结生产的成品率高,经济效益显著,证明基于前馈补偿策略的制粒湿度控制方法是一种成功的控制方法。
Granulating process, is one of the key working procedures in sintering system, and its humidity controlling has great and direct effect on the quality of sintering. By reason of the biggish time lag in humidity measure feedback and obvious undulation in feedstock humidity control, it's difficulty for common methods to satisfy the controlling request. Thereby, advanced controlling method is needed to solve the problem.
     Having analyzed the controlling request of the system, this thesis brings forward a granulation humidity controlling method aiming at solving the problem of biggish time lag in it, and applies it to the granulation controlling system of air washer of Shaoguan Smelting Factory. This thesis also conceives a relay feedback controlling system model with ameliorated predictive compensatory, designs the system controller, puts up the emulation of the system controlling model, and completes the realization and application of hardware and software. At the same time, the Fluctuation Computers Controlling System, composed of electro-pneumatic valve, moisture gauge, PLC (Programmable Logic Controller—PLC) and IPC(Industrial Personal Computer—IPC), has been conceived. It has also expatiated the idiographic realizable process and method of this system, and achieved data acquisition, automatic, remote monitoring and alarming of granulation humidity by the software configuration WINCC.
     Through plenty of tests, this thesis proves that this system elevates the stability of humidity controlling, quality of sintering, finished product rate of sintering production, and economic benefits. And it also proves that the granulation humidity controlling method, based on the tactic of the feedforward compensation, is a successful method.
引文
[1] 刘鑫.中国工业控制自动化技术的现状与发展趋势.航天控制,2004,4:40~45
    [2] 刘鑫.我国工业控制自动化技术的现状与发展趋势.电气时代,2003,12:43~49
    [3] 伟东科技(南京)有限公司.我国工业控制自动化技术现状与发展趋势.机电产品市场,2004,7:62~65
    [4] 李建华.我国工业控制自动化技术的发展趋势.数字化工,2005,7:27~30
    [5] 蒋继穆.我国铅锌冶炼现状与持续发展.中国有色金属学报,2004.14(5):52~62
    [6] 张连义,叶长春,李迅波.PLC网络与计算机网络连接的应用.实用测试技术,2002,5:31~35
    [7] 宋云霞,朱学峰.大时滞过程控制方法及应用.化工自动化及仪表,2001,4:11~17
    [8] Astrom K J,Hagglund T. Automatic tuning of simple regulators with specifications on phase and amplitude margins.Automatica,1984,20: 645~651
    [9] Astrom K J,Hagglund T. PID Controllers: Theory, Design,and Tuning,2nd Edition.Research Triangle Park,North Carolina: Instrument Society of America,1995
    [10] 王伟,张晶涛,柴天佑.PID参数先进整定方法综述.自动化学报,2000,26(3):347~355
    [11] 蒋新华.自适应PID控制.信息与控制,1988,17(5):41~50
    [12] Koivo H N, Tanttu J T.Tuning of PID controllers: survey of SISO and MIMO techniques.In: Preprints of IFAC International Symp.on Intelligent Tuning and Adaptive Control,Session 1,Singapore, 1991
    [13] Astrom K J, Hagglund T, Hang C C,Ho W K.Automatic tuning and adaptation for PID controllers—A survey.Control Eng.Practice, 1993,1 (4): 699~714
    [14] 周强,孙瑜.继电反馈辨识方法的改进及应用.中华纸业,2004,25(10):45~48
    [15] 汤伟,施颂椒,王孟效.大时滞过程自整定PID及其在定量控制中的应用.上海交通大学学报,2002,36(4):115-118
    [16] 许超,陈治纲,邵惠鹤.预测控制技术及应用发展综述.化工自动化及仪表,2002,3:3~12
    [17] 马明达,朱新坚.基于继电反馈的辨识的研究[J].化工自动化及仪表,2005,2:13~19
    [18] Morris H M.How adaptive are adaptive process controllers,Control Engineering,1987,34 (3): 96~100
    [19] Schei T S.A method for closed loop automatic tuning of PID controllers.Automatica, 1992,28:587~591
    [20] 杨智,朱海锋,黄以华.PID控制器设计与参数整定方法综述.化工自动化及仪表,2005,5:4~10
    [21] 江会龙,简炜,薛云灿.鲁棒性PID控制器的自整定研究.湖北汽车工业学院学报,2005,19(1):33~34
    [22] 彭楚武,钟庆昌,贾青,谢剑英.自整定鲁棒PID控制器[J]。湖南大学学报(自然科学版),1999,26(5):56~61
    [23] 张井岗,李临生,陈志梅.时滞系统的鲁棒二自由度Smith预估控制.系统工程与电子技术,2002,2:51~53
    [24] 张井岗,刘志远,陈志梅,赵志诚.时滞系统的二自由度控制.信息与控制,2002,31(4)38~41
    [25] 研华(中国)公司.研华产品选型手册.2005
    [26] CPCC(China PROFIBUS Competence Center).PROFIBUS标准(JB/I 10308.3-2001).2001
    [27] Siemens.SIMATIC S7-300通用型PLC.2004,1419.pdf
    [28] 张桂香,张志军.PLC的选型与系统配置.微计算机信息,2005,21(7-1):81~83
    [29] 廖常初.PLC应用技术问答.机械工业出版社,2006
    [30] Siemens.SITRANS MAGFLO电磁流量计使用手册.2005,MAG300010005100WwithTransmitter_cn.pdf
    [31] 北京九如仪器有限责任公司.OMM3000红外线三波长水份仪技术规格.http://www.jeroinstrument.com/sfy3.htm
    [32] Siemens.SIMATIC自动化系统S7-300入门指南.2006,N0314.pdf
    [33] Siemens.使用STEP 7 V5.3编程手册.2004,1019.pdf
    [34] 易异勋.工控系统组态软件体系结构的研究.基础自动化,2000,7(2):62~64
    [35] 欧金成,欧世乐,林德杰,彭备战.组态软件的现状与发展.工业控制计算机,2002,4:4~8
    [36] 林威汉,高春光,张海涛.国内组态软件的现状与未来.电气时代,2002,6:10~13
    [37] Siemens. WinCC V6 Handbook (Chinese). 2004.1456.pdf
    [38] 周美兰.PLC电气控制与组态设计.北京:科学出版社,2003
    [39] 王万强,陈国会,张俊芳.S7-300PLC和WinCC组念软件在电厂的应用.机电工程,2004,7:18~22
    [40] 朱勇,叶华,刘成良.使用WinCC在机电一体化系统中实现过程监控.仪表技术与传感器,2004,6:21~23
    [41] 黄崇莉.PLC在配料系统的应用[J].机械工程与自动化,2006,1:34~36
    [42] 刘品轩.PLC在定量装车及罐区自动计量系统中的应用[J].石油商技,2005,5:24~26
    [43] 刘文化,韦忠朝,孙文玲.带上位机的PLC控制大型粮食输送系统[J].起重运输机械,2006,2:18~21

© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号

地址:北京市海淀区学院路29号 邮编:100083

电话:办公室:(+86 10)66554848;文献借阅、咨询服务、科技查新:66554700