DC Motor Parameter Identification Using Speed Step Responses

doi:10.1155/2012/189757

DC Motor Parameter Identification Using Speed Step Responses

2012-01-01

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DOI：10.1155/2012/189757

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Based on the DC motor speed response measurement under a step voltage input, important motor parameters such as the electrical time constant, the mechanical time constant, and the friction can be estimated. A power series expansion of the motor speed response is presented, whose coefficients are related to the motor parameters. These coefficients can be easily computed using existing curve fitting methods. Experimental results are presented to demonstrate the application of this approach. In these experiments, the approach was readily implemented and gave more accurate estimates than conventional methods.

DC Motor Parameter Identification Using Speed Step Responses

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