热力发电
熱力髮電
열력발전
THERMAL POWER GENERATION
2009年
7期
92-95
,共4页
火电厂%主蒸汽温度%非线性%线性%PID控制器%NCD模块%控制
火電廠%主蒸汽溫度%非線性%線性%PID控製器%NCD模塊%控製
화전엄%주증기온도%비선성%선성%PID공제기%NCD모괴%공제
thermal power plant%main steam temperature%non-linear%linear%PID controller%NCD module
针对传统线性PID控制器中控制参数固定导致的控制品质下降的问题,分析了控制参数与对象误差的理想变化关系,给出了控制参数随误差变化的非线性函数,基于此设计了非线性PID(NPID)控制器,并利用Simulink中的NCD模块对其进行了参数整定,并将NPID控制器应用于主蒸汽温度控制系统.仿真结果表明NPID较常规PID具有更好的控制品质和鲁棒性.
針對傳統線性PID控製器中控製參數固定導緻的控製品質下降的問題,分析瞭控製參數與對象誤差的理想變化關繫,給齣瞭控製參數隨誤差變化的非線性函數,基于此設計瞭非線性PID(NPID)控製器,併利用Simulink中的NCD模塊對其進行瞭參數整定,併將NPID控製器應用于主蒸汽溫度控製繫統.倣真結果錶明NPID較常規PID具有更好的控製品質和魯棒性.
침대전통선성PID공제기중공제삼수고정도치적공제품질하강적문제,분석료공제삼수여대상오차적이상변화관계,급출료공제삼수수오차변화적비선성함수,기우차설계료비선성PID(NPID)공제기,병이용Simulink중적NCD모괴대기진행료삼수정정,병장NPID공제기응용우주증기온도공제계통.방진결과표명NPID교상규PID구유경호적공제품질화로봉성.
Directing against the problems of the fixed control porameters in traditional PID controller leading to poor control quality, an ideal variation relationship between the error of control parameter and the error of object has been analysed, a non-linear function of the control parameter along with the error variation being given. A non-linear PID controller has been designed on the basis of said non -linear function,and the parameters being set by using NCD module in Simulink. The non-linear PID controller has been used to a main steam temperature control system. The emulation result shows that the non-linear PID controller has better control quality and robustness than that of a conventional PID controller.
