Abstract
AbstractCurrent model is sensitive to the motor parameters, there is initial value of the integral deviation and DC bias in voltage model, and the integrated model of both current model and voltage model is difficult to achieve. Taking into account these issues, this paper presents a reduced-order flux observer model of electrically excited synchronous motor based on knowledge of modern control theory. Its state equation is derived based on its voltage, current and flux equations, and reduced-order flux observer is designed according to state equation of the electrically excited synchronous motor, the system matrix is derived and the feedback matrix is determined too. Finally, simulation is done for whole system on Matlab / Simulink platform, and the simulation results are analyzed. The flux can be observed accurately in the speed range.KeywordsElectrically excited synchronous motorReduced order observerFeedback matrixSystem matrixMatlab/Simulink
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