CAJ | 학술논문

基于对选择性催化还原(SCR)反应器喷氨量控制过程大延时产生原因的分析，提出了模糊自适应Smith 串级控制策略：采用 Smith 预估控制喷氨量；采用模糊规则在线修正 PID 参数。从而，使得控制器能够有效适应控制对象的变化。将模糊自适应 Smith 串级控制与常规PID串级控制进行仿真比较，结果表明该模糊自适应 Smith 串级控制效果优于常规 PID 串级控制，并且当控制对象的模型有较大变化时，仍能够保持较好的控制品质，具有较强的适应性。
기우대선택성최화환원(SCR)반응기분안량공제과정대연시산생원인적분석，제출료모호자괄응Smith 천급공제책략：채용 Smith 예고공제분안량；채용모호규칙재선수정 PID 삼수。종이，사득공제기능구유효괄응공제대상적변화。장모호자괄응 Smith 천급공제여상규PID천급공제진행방진비교，결과표명해모호자괄응 Smith 천급공제효과우우상규 PID 천급공제，병차당공제대상적모형유교대변화시，잉능구보지교호적공제품질，구유교강적괄응성。
By analyzing the cause of large delay in ammonia spraying control in SCR reactor,the fuzzy self-a-daptive Smith cascade control system was applied.In this method,the Smith cascade controller is used to predictively control the spraying ammonia flow and the fuzzy rules are used to adj ust the PID parameters online.So the controller can adapt to changes of the control obj ect effectively.Comparison between the fuzzy self-adaptive Smith cascade control system and the conventional PID cascade controller was carried out by simulation testing.The results show that,the control effectiveness of this Smith cascade controller was superior to that of the conventional PID cascade controller,and good control performance can be main-tained when the model of control obj ect changed,indicating the Smith cascade controller has strong adapta-bility.