ʱ : 过程控制系统与仪表习题答案王再英 - 百度文库ϿʼĶ
2-25 òѹijҺλѹİװλͼ2-75ʾ뵼ѹ?pҺλH֮ϵ費ҪǨƣΪʲô
2-26 ÷ʽѹҺλŵʲô
P57
иʴԻнᾧԼճȴ̵ҺҺλĤСëϸܺͲɵķϵͳڳйͣΪѹʣʹʲëϸ
ɽʡޡ
2-27 ʽλƵĹԭ
õļ֮ʱ仯ʱҲӦ仯ԭλɲҺλλֲͬҺķֽ档
2-28 Һλʲôϣ
P60
ʺǿʴԡѹжճҺIJ
3 ϰ˼
3-1 ʲôǿĿƹɣЩƹɣ
1ƹɣָźƫź֮Ĺϵ
2ƹɣλʽơơֿơֿƺͱֿơ
3-2 ˫λƹģкȱ㣿
1˫λƵǸƫΪС
2ȱ㣺λʽģʽ£ر趨ֵȷȶ趨ֵϡ˫λֻضֵӦĿƷҲֻλãǹ¡
3ŵ㣺ƫмʱƻԽͿƻصƵ̶ȣӳ˶ʹ
3-3 Ϊʲô
ԭźyƫe֮ɱϵ
Ϊ˿˷ŶӰ죬ҪпãҪб仯ڱֻƫΪʱ仯ŲΪ㣬˵ƻԶ
3-4 дֿƹɵѧʽΪʲôֿ
1ֿõ仯yƫeĻ֣y?
2ƫʱźŽʱСƫΪʱֹͣ仯ijһֵϡֿɿϵͳԵ
3-5 ʲôǻʱ䣿ʱԿƹ̵Ӱ졣 1y?
ʱǿƫĵʱ䣬ֻҪƫڣźŽʱСֻеƫΪʱֹͣ仯ijһֵϡ
2 ʵʵĿУûʱTiʾõǿֵϣTi=1K i ȻTiԽСK i ԽþԽǿ֮Ȼ
3-6 ijֿ롢ΧΪ420mAΪ100%ʱΪ2min̬ʱΪ5mAijʱ̣Ծӣʾ5min5mA仯Ϊ٣
1edt ?T11edt T1??1?1?ɱֹʽy??e??edt?? P?T1?
⣺p?
1?100%K p =1, TI= 2 min , e Kp̬ʱy05mA
?1?1?y?y0??e??edt??P?T1?15min?5?1?(?0.2??0.2?5)
2?(5?0.7)mA
3-7 ıȶԿƹʲôӰ죿ʱҪעʲô⣿
P74
1ıPԽСķŴͨPʵ֡
2ȲʾķŴʾϵЧ䡣һģ̵ıDzܵġ
ԣƫı仯ʹԱ仯ọ̈̄16mAڱ״̬
3-8 ֿƹɵѧʽʲôΪʲôʵΪֿƹɣ
1y?TD
KpԽƫŴԽǿҲԽǿ֮Ȼõǿ
de dt