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International Conference on Instrumentation, Measurement, Circuits and Systems (ICIMCS 2011)

Chen Ming
Chen Ming
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During the decarburization process of smelting steel and iron, not only carbon content is difficult to be detected on-line, but also there are many uncertain factors, so end-point control is still difficult to be accurately determined in time. S7-300 PLC is used as controller in predictive control system. FB (Function Block) of non-equidistance GOM is created to predict carbon content in smelting, and the trend curve of carbon content is shown on configuration. Experiment results show that the relative error is at — 6.4% ∕ 3.06%. Carbon content can be predicted well in real time with the high fitting precision and high prediction precision.

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