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The Parameter Estimation for a Non-linear Mathematical Model of Boiler-turbine-generator Unit

The validity of mathematical model direct impact the research result of the boiler-turbine coordinated control system. Based on the mechanism mathematical model and system identification method, this paper build a non-linear mathematical model of boiler-turbine coordinated controlled object. By deducing and comparing the corresponding differential equation with another non-linear mathematical model, some results have been obtained, which supplied the theory foundation for the researchers to build an effective mathematical model. Simulation test verifies that this model can exactly reflect the varying trend of the controlled object.