PI tuning for large dead-time processes with a new robustness specification PI tuning for large dead-time processes with a new robustness specification期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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PI tuning for large dead-time processes with a new robustness specification

作者姓名：	徐江华邵惠鹤

基金项目：	国家高技术研究发展计划(863计划)

摘要：
PI tuning for large dead-time processes with a new robustness specification

Abstract:	A simple PI controller tuning method for large dead-time processes is presented. First, a first-order plus dead-time model is identified on the basis of relay feedback experiments, which Nyquist curve is very close to that of large dead-time processes over a wide frequency range. With the model available, PI controller is designed with a new robust specification. Simulation examples show the effectiveness and feasibility of the presented PI tuning method for large dead-time processes.

Keywords:	PI control model identification relay feedback robustness
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