Motor drive control with a single current sensor using space vector technique

Motor drive control with a single current sensor using space vector technique

A drive system for a three phase brushless AC motor is arranged to optimize the transistor switching pattern to improve power output whilst allowing current measurement in all of the phases using a single sensor. This is achieved by defining voltage demand vectors x where more than two states are re...

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Hauptverfasser: Williams, Connel Brett, Coles, Jeffrey Ronald, Szabo, Adrian, Dixon, Christopher David, Li, Jiang, Fardoun, Abbas Ahmad
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Sprache:eng
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creator Williams, Connel Brett
Coles, Jeffrey Ronald
Szabo, Adrian
Dixon, Christopher David
Li, Jiang
Fardoun, Abbas Ahmad
description A drive system for a three phase brushless AC motor is arranged to optimize the transistor switching pattern to improve power output whilst allowing current measurement in all of the phases using a single sensor. This is achieved by defining voltage demand vectors x where more than two states are required to meet a minimum state time requirement determined by the single sensor method, and calculating three or more state vectors which produce the demanded vector x whilst still allowing single current sensing. Various methods of optimising the PWM pattern so as to give maximum output whilst using single current sensing are also disclosed.
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title Motor drive control with a single current sensor using space vector technique
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