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介绍并分析了上海FOXBORO公司I/ASeries自整定控制器及其使用方法,并在再热汽温控制系统中得到成功应用.投运结果表明:采用自整定控制器的自适应控制系统具有良好的克服大滞后、大惯性能力,控制效果良好.“,”This article described the principle and usage of Shanghai FOXBORO''s I/A series self tuning controllerand applied it into reheat steam temperature control system.The result showed that it can effectively solye the problem of large lag and large delay.