摘要:分析了由于多级精馏塔之间关联变量之间耦合严重,过程反应慢、动态响应时间长、滞后严重,常规PID控制已不能满足工艺长期稳定运行的要求等问题,通过对精馏控制系统进行的分析,运用PKS系统提供的Profit Loop控制器优化了系统控制方式,解决了上述问题.
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