燃煤锅炉母管压力/给粉调节系统的前馈及反馈复合控制

Feed forward control and composed feedback control for the governing system of coal fuel boiler's mother line pressure and of coal powder's delivery

针对并列母管制运行锅炉母管压力参数具有大滞后、锅炉之间相互干扰、相互耦合的特点 ,提出了协调控制的策略。根据主设备运行工况自动区分内外扰动类型 ,根据扰动强弱判断燃烧稳定状态 ,以运行相应的控制策略。实际运行证明在各种复杂工况下 。

Aiming at solving the problems that the mother line pressure of the boilers which have the character of juxtaposed mother lines is liable to be severe state hysteresis and coupling and disturbing one another,this motivate puts forward the coordinate control strategy,which runs the corresponded control strategy in terms of the inside and outside disturbing types distinguished on the basis of situation of main equipment and in terms of burning stability judged on the basis of disturbin intensity.The application proves that this coordinate control strategy of mother line has achieved a favorable performance under various complicated conditions.