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jiexiewei11
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樓主  發(fā)表于: 2011-01-22 12:51
在實(shí)際調試中,只能先大致設定一個(gè)經(jīng)驗值,然后根據調節效果修改。
  對于溫度系統:P(%)20--60,I(分)3--10,D(分)0.5--3
  對于流量系統:P(%)40--100,I(分)0.1--1
  對于壓力系統:P(%)30--70,I(分)0.4--3
  對于液位系統:P(%)20--80,I(分)1--5
  參數整定找最佳,從小到大順序查
  先是比例后積分,最后再把微分加
  曲線(xiàn)振蕩很頻繁,比例度盤(pán)要放大
  曲線(xiàn)漂浮繞大彎,比例度盤(pán)往小扳
  曲線(xiàn)偏離回復慢,積分時(shí)間往下降
  曲線(xiàn)波動(dòng)周期長(cháng),積分時(shí)間再加長(cháng)
  曲線(xiàn)振蕩頻率快,先把微分降下來(lái)
  動(dòng)差大來(lái)波動(dòng)慢。微分時(shí)間應加長(cháng)
  理想曲線(xiàn)兩個(gè)波,前高后低4比1
  一看二調多分析,調節質(zhì)量不會(huì )低
qinglin2314
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1樓  發(fā)表于: 2011-02-12 10:50
曲線(xiàn)振蕩很頻繁,比例度盤(pán)要放大
應該是要把比例放小是吧?

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