MOTOR CONTROL DEVICE AND MOTOR CONTROL METHOD
In an α coordinate system, vectors of currents flowing in three-phase AC motor are set in directions fixed relative to a zero vector current according to a voltage applied in six non-zero vector switching modes of an inverter. A current vector closest to a command current value is specified from tho...
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Main Author | |
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Format | Patent |
Language | English |
Published |
19.06.2014
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Subjects | |
Online Access | Get full text |
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Summary: | In an α coordinate system, vectors of currents flowing in three-phase AC motor are set in directions fixed relative to a zero vector current according to a voltage applied in six non-zero vector switching modes of an inverter. A current vector closest to a command current value is specified from those current vectors. Then, only a non-zero vector current when operating the inverter in the non-zero vector switching mode corresponding to the specified current vector is calculated. |
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Bibliography: | Application Number: US201214239158 |