基于频域的校正方法及实验设计【参考】.docx

2016届毕业（设计）论文题目基于频域的校正方法及实验设计专业班级过程自动化学号1204160134学生姓名于春明第一指导教师陈杰指导教师职称学院名称电气信息院完成日期：2016年5月 20日基于频域的校正方法及实验设计Correction Method and Experimental Design based on Frequency Domain学生姓名于春明第一指导教师陈杰摘要在经典控制理论中，系统校正设计，就是在给定的性能指标下，对于给定的对象模型，确定一个能够完成系统满足的静态与动态性能指标要求的控制器，即确定校正器的结构与参数。串联校正控制器的频域设计方法中，使用的校正器有超前校正器、滞后校正器、滞后-超前校正器等。超前校正设计方法的特点是校正后系统的截止频率比校正前的大，系统的快速性能得到提高，这种校正设计方法对于要求稳定性好、超调量小以及动态过程响应快的系统被经常采用。滞后校正设计方法的特点是校正后系统的截止频率比校正前的小，系统的快速性能变差，但系统的稳定性能却得到提高，因此，在系统快速性要求不是很高，而稳定性与稳态精度要求很高的场合，滞后校正设计方法比较适合。滞后-超前校正设计是指既有滞后校正作用又有超前校正作用的校正器设计。它既具有了滞后校正高稳定性能、高精确度的好处，又具有超前校正响应快、超调小的优点，这种设计方法在要求较高的场合经常被采用。关键词：ABSTRACTIn classical control theory, system design correction, that is, given the performance for a given object model to determine a controller to complete the system meets the static and dynamic performance requirements, namely to determine the structure and corrector parameter. Frequency Domain controller series corrected using correction has lead corrector corrector lag lag - lead Corrector like. Features advanced design correction method is to correct the system cut-off frequency than the fast performance is improved before the correction is large, the system, this correction method for design requires good stability, small overshoot and dynamic process of rapid response systems are often use. Lag compensation design approach is characterized by system after correcting the cutoff frequency than the fast performance before correction is small, the system is deteriorated but stable performance of the system has improved, therefore, the system speed requirements are not high, and the stability and steady-state high precision of the occasion, lag compensation design method is more suitable. Lag - lead Corrector design means there are both lagging corrective action ahead of corrective action calibration designs. It has a lag correction high stability, high accuracy advantages, but also has the leading correction fast response, small overshoot of the advantages of this design appr