針對(duì)熱工過程中的存在的滯后環(huán)節(jié)，本文提出一種結(jié)合模糊和PID 的前饋——反饋
預(yù)估控制方法,該前饋預(yù)估補(bǔ)償與系統(tǒng)的純滯后時(shí)間無關(guān)，特別適合于因?yàn)槿鄙贉髸r(shí)間信息導(dǎo)致的無法運(yùn)用大林算法和smith 預(yù)估器的情況。實(shí)驗(yàn)結(jié)果表明該控制方法能有效抑制滯后的不利影響，具有一定的魯棒性和較高的控制精度。
關(guān)鍵詞：滯后；前饋補(bǔ)償；預(yù)估控制；復(fù)合控制
Abstract: As for the delay widely exists in most thermal systems，this paper presents a new
method, which applies the theory of feedforward-feedback predictive controller with fuzzy and
PID. The method has nothing to do with the time delay and especially fit in the situation in witch Dalin algorithm and Smith prediction control can’t be used because of lack of information of time delay. Experiment results show that the method can effectively restrain the adverse influence from delay, and has a certain robusticity and high precision.
Keywords: Time delay; Feedforward compensator; Predictive control; Compound control