Due to variation of operation conditions, it's not easy task to acquire batch process model, which lead to difficulty in implementing quality control strategies . so modeling process through identification is always a hotspot in control and monitoring field 但由于工作條件不斷變化,間歇過(guò)程系統(tǒng)的數(shù)學(xué)模型發(fā)生變化,使得質(zhì)量先進(jìn)控制策略實(shí)施面臨較大困難,所以通過(guò)辨識(shí)方法得到系統(tǒng)的模型一直是控制和故障診斷領(lǐng)域研究的熱點(diǎn)。
Multi-product and multi-purpose batch process model with petri net was addressed for a review of history . however, the petri net describing real processes usually tends to be very complex and extremely large . to circumvent this situation, some extensions such as abstract and hierarchical methods were proposed 本文探討并總結(jié)了多產(chǎn)品和多目的批處理生產(chǎn)過(guò)程的賦時(shí)petri網(wǎng)模型,為改進(jìn)petri網(wǎng)描述節(jié)點(diǎn)過(guò)多的缺點(diǎn),利用抽象和層次模擬等技術(shù)對(duì)其進(jìn)行簡(jiǎn)化。