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The paper describes a relay feedback based algorithm for identification of over-damped second order plus dead time transfer functions with a NMP zero. Exact analytical expressions for system output under relay test and frequency response points are derived using a single run of biased relay test. Using the proposed method all five unkown parameters of the model can be driven simultaneously. The identified...
In this paper a second order plus dead time transfer function with a NMP zero is identified. Through a single run of biased relay test exact analytical expressions are written for the unsymmetrical limit cycle and up to five parameters can be driven using fitting conditions simultaneously. By using both frequency and time domain features a clear algorithm is proposed which is applicable to identifying...
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