调速电机在工业锅炉负压控制中系统特性及控制研究
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摘要
文章分析了斩波串级调速电动机的机械特性及节能原理,建立了调速电动机的动态仿真模型。在star-90仿真支撑平台上搭建了风烟系统仿真模型,在该模型上进行仿真研究,分析调速电动机控制炉膛负压时系统特性变化以及系统中负载量变化对两台并行运行调速电动机的影响。从试验结果来看,调速电动机在炉膛负压控制系统中的应用,能够使系统稳定运行,并行运行的调速电动机不会因负载变化而产生相互扰动的现象。
文中还仿真分析了调速电动机与引风挡板之间的相互切换对系统产生的扰动影响,仿真结果表明,只要引风挡板与调速电动机配合适当,系统的切换扰动就能够控制到最小。
In this paper, the mechanical characteristic and energy-saving principle of the chopping cascade speed regulating motor is discussed,and motor’s simulation model is created. The model of furnace pressure control system controlled by speed regulating motor is established on the star-90 software, and its system characteristic is discussed on the model. The disturbance between two paralleled running motor is analysis by simulation. The results of the simulation display that the system and motors can run stably.
The simulation of switchover between speed regulating motor and damper adjustment is studied, and the results instruct that the disturbance of the system would be smaller when the time is controlled properly between motor and damper.
文中还仿真分析了调速电动机与引风挡板之间的相互切换对系统产生的扰动影响,仿真结果表明,只要引风挡板与调速电动机配合适当,系统的切换扰动就能够控制到最小。
In this paper, the mechanical characteristic and energy-saving principle of the chopping cascade speed regulating motor is discussed,and motor’s simulation model is created. The model of furnace pressure control system controlled by speed regulating motor is established on the star-90 software, and its system characteristic is discussed on the model. The disturbance between two paralleled running motor is analysis by simulation. The results of the simulation display that the system and motors can run stably.
The simulation of switchover between speed regulating motor and damper adjustment is studied, and the results instruct that the disturbance of the system would be smaller when the time is controlled properly between motor and damper.
引文
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[2]刘广彬,刘萍,李勇,李爱英.变频调速器在锅炉引风机控制系统中的应用.电气传动,2001,第一期:63~64
[3]王兵树,万军.串级调速技术的发展及在发电厂的应用
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[5]沈天飞,陈伯时,龚幼民.异步电动机转子斩波调阻调速的准动态模型.电动机与控制学报,2001,5(1)
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[8]车长源.锅炉风机节能技术.北京:中国电力出版社,1999
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[10]李遵基.热工自动控制系统.北京:中国电力出版社,1997.10
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[13]金维强. 大型锅炉运行.北京:中国电力出版社,1998.5
[14]刘观起,巩保峰,万军.内反馈串级调速电动机数学模型的建立和仿真.华北电力大学学报,2005.1,32(1)
[15]王广军,吴景兴,王媛.锅炉烟风系统动态数学模型及炉膛“内爆”过程分析.东北电力学院学报, 1997.12,17(4)
[16]崔健.斩波式串级调速系统的研究与改进:[硕士学位论文].保定:华北电力大学,2003
[17]张广溢,惠毅.异步电动机转子斩波调速系统的特性分析及参数计算.电器传动,1986,74(6).
[18]祁强,张广溢.异步电动机转子电阻斩波调速系统的特性分析与仿真研究[J],电机与控制学报,2005.1.9(1)
[2]刘广彬,刘萍,李勇,李爱英.变频调速器在锅炉引风机控制系统中的应用.电气传动,2001,第一期:63~64
[3]王兵树,万军.串级调速技术的发展及在发电厂的应用
[4]姜泓,赵洪恕.电力拖动交流调速系统.武汉:华中理工大学出版社,1996:57~60
[5]沈天飞,陈伯时,龚幼民.异步电动机转子斩波调阻调速的准动态模型.电动机与控制学报,2001,5(1)
[6]魏泽国.可控硅串级调速的原理及应用.北京:冶金工业出版社出版,1985.8:95~122
[7]黄立培.电动机控制.北京:清华大学出版社,2004.4~5
[8]车长源.锅炉风机节能技术.北京:中国电力出版社,1999
[9]韩璞,刘长良,李长青.火电站仿真机原理及应用.天津:天津科学技术出版社,1998:114~121
[10]李遵基.热工自动控制系统.北京:中国电力出版社,1997.10
[11] 吕崇德、任挺进、姜学智、程芳真德著.大型火电机组系统仿真与建模.北京:清华大学出版社,2002
[12]章程樾.锅炉动态特性及其数学模型.北京:水利电力出版社,1987
[13]金维强. 大型锅炉运行.北京:中国电力出版社,1998.5
[14]刘观起,巩保峰,万军.内反馈串级调速电动机数学模型的建立和仿真.华北电力大学学报,2005.1,32(1)
[15]王广军,吴景兴,王媛.锅炉烟风系统动态数学模型及炉膛“内爆”过程分析.东北电力学院学报, 1997.12,17(4)
[16]崔健.斩波式串级调速系统的研究与改进:[硕士学位论文].保定:华北电力大学,2003
[17]张广溢,惠毅.异步电动机转子斩波调速系统的特性分析及参数计算.电器传动,1986,74(6).
[18]祁强,张广溢.异步电动机转子电阻斩波调速系统的特性分析与仿真研究[J],电机与控制学报,2005.1.9(1)