System and method of generating external parameter value for separately excited motor controller
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United States of America Patent
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Oct 21, 2014
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N/A
app pub date -
Jun 22, 2011
filing date -
Nov 22, 2010
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Abstract
A system and a method of generating an external parameter value for a separately excited motor controller are disclosed, the system including: a digital signal processor to convert a received analog electrical signal into a digital signal and to scale the digital signal, so as to generate a parameter value in conformity with a data format of the system; an external parameter generating module to adjust the parameter value with a calibration coefficient to obtain the external parameter value; the calibration coefficient being generated by a calibration coefficient generating module and being pre-stored in a calibration coefficient storing module; and a calibration coefficient generating module to read the parameter value generated by the digital signal processor and obtain an actual measuring value as a reference parameter value, to calculate a difference value between the parameter value from the digital signal processor and the reference parameter value, and to generate the calibration coefficient from a ratio of the reference parameter value to the parameter value obtained from the digital signal processor if the difference value exceeds a preset value.
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