本文針對(duì)輸入要求平穩(wěn)的系統(tǒng)設(shè)備提出了一種預(yù)測(cè)控制新算法。該算法通過對(duì)輸入增
量引入柔化系數(shù)矩陣從而進(jìn)行約束，避免了矩陣求逆的計(jì)算，大大減少了計(jì)算量，確保了系統(tǒng)的快速性，同時(shí)保留了廣義預(yù)測(cè)控制的基本特征。其次，控制算法中改善了傳統(tǒng)廣義預(yù)測(cè)控制算法的單一性，充分利用預(yù)測(cè)信息的補(bǔ)償作用進(jìn)行加權(quán)平均，很好得抑制了超調(diào)的出現(xiàn)。通過擠出機(jī)的壓力系統(tǒng)做仿真試驗(yàn)，結(jié)果驗(yàn)證了該算法的有效性。
關(guān)鍵詞： 廣義預(yù)測(cè)控制；快速性；無超調(diào)；逆矩陣
Abstract : Considering some industry system equipments are ordered smoothing input signals
against some sharp signals damages equipments, A kind of new control algorithm is presented, which not only makes input increase constrainted by softing coefficient matrix to obtain smoothing input, overcoming the disadvantage of calculating inverse matrix to increase responding speed of the system, but also makes fully use of compensations of predictive information to form weighted average to restrain overshoot. The simulation results have proved the validity of the algorithm by comparative study for extruder pressure system.
Key words Generalized predictive control; A fast speed; Non-overshoot; inverse matrix