摘要：锅炉是石油化工、发电等工业过程中的重要动力设备，它所产生的高压蒸汽既可作为驱动透平的动力源，又可作为精馏、干燥、反应、加热等过程的热源。并且锅炉还是被广泛的应用于国民经济各个部门的工业民用设备。随着锅炉的大规模使用，工业生产的不断扩大，作为动力和热源的锅炉，也向着高参数、高效率发展，为了确保安全，保证生产，锅炉设备的控制系统就显得愈加重要。锅炉是现代工业中的重要动力设备，做好锅炉控制具有极其重要的经济价值。21534
由于设备本身及操作管理等方面的原因，国内锅炉的性能指标与发达国家相比有较大差距，主要表现在燃料消耗高或热效率低。由于锅炉系统是一个多输入多输出的复杂控制对象，其燃烧过程因多变量、大时滞、强关联的复杂特性，控制起来相当困难。因此，提高锅炉燃烧过程的控制，具有重要的理论及现实意义。过程控制是其中最重要的一个分支。它主要针对工业过程的五大参数，即温度、压力、流量、液位(或物位)、成分和特性等参数的控制问题。论文网
本文根据火电厂锅炉燃烧过程的生产工艺和流程，利用单回路、串级、比值等控制系统的特点，分别设计锅炉燃烧过程控制系统的三个子系统：蒸汽压力控制系统，燃料与空气的比值控制，炉膛负压控制系统。在仿真软件MATLAB/Simulink中，根据控制系统原理方框图，作出仿真模型图，分别进行相应的仿真。通过，控制其燃料量来调节蒸汽压力稳定,控制送风量来调节烟气含量使燃烧过程更加充分,控制引风量来调节炉膛负压使炉膛压力更加稳定,最后通过模拟示波器中的波形来调节参数，改良控制效果。通过对蒸汽压力控制系统，燃料空气比值控制系统和炉膛负压控制系统设计，然后分别对其做了论证和分析。同时，选择了MATLAB中的SIMULINK工具箱对整个系统进行仿真。在仿真阶段，采用的控制方法是应用最广泛的PI控制，最终都使波形达到了稳定状态。
毕业论文关键词： 蒸汽压力控制、燃料空气比值控制、炉膛负压控制、仿真
The boiler combustion process control system
Abstract: The boiler is a more complex controlled member, it not only adjustment quantity many, moreover between various types and quantities mutually relates, mutually affects, mutually restricts, boiler interior energy conversion mechanism quite complex, therefore must establish a more ideal mathematical model to the boiler quite to be difficult. Therefore, has made the boiler system simplification processing, decomposes is three relatively independent governing systems. Certainly also may subpide other system like amount of wind control loops in certain systems, but it mainly is following three parts: (1) the chamber negative pressure (2) the boiler combustion process has three duties for the main tuning quantity special burning regulator system. A deep theoretical study was made on the vector variable-frequency speed adjusting control system and a corresponding simulation model for mine electric locomotive was established by Simulink dynamic simulation tool in MATLAB .The simulation results show this system has a accurate control performance and high application performance . Narrates the topic background, speed the development of power electronic devices are required, the selection of control method and the main content of this design. From dynamic model, the analysis of asynchronous motor torque and flux linkage control law, the high performance induction motor speed control system scheme . Briefly introduces MATLAB, analysis and the principle of SVPWM module. Step motor according to the rotor flux oriented vector control system of the analysis.
Keywords:  Boiler control；MATLAB；Simulation
目  录
1    绪论    1 MATLAB锅炉燃烧过程控制系统设计:http://www.youerw.com/zidonghua/lunwen_13784.html