MOTOR DRIVING APPARATUS AND METHOD
First Claim
1. A motor driving apparatus comprising:
- an inverter including a main driver sequentially activating N phases of a motor and a spare driver activating a spare phase substituting for a faulted phase among the activated N phases;
a detecting unit detecting the respective output signals of the N phases input from the inverter to the motor;
a switching unit performing switching so that the spare phase of the spare driver is connected to the faulted phase of the exited N phases; and
a controlling unit driving the inverter to determine whether or not a fault is generated in the phase of the main driver from the respective detected output signals of the N phases and control the switching unit so that the faulted phase is connected to the spare phase when the fault is generated in the phase.
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Accused Products
Abstract
Disclosed herein are a motor driving apparatus and method. The motor driving apparatus includes: an inverter including a main driver sequentially activating N phases and a spare driver activating a spare phase substituting for a faulted phase among the activated N phases; a detecting unit detecting the respective output signals of the N phases; a switching unit performing switching so that the spare phase is connected to the faulted phase of the exited N phases; and a controlling unit driving the inverter to determine whether or not a fault is generated and control the switching unit so that the faulted phase is connected to the spare phase. Therefore, since the motor may be driven without replacing the inverter, a cost may be reduced, and since the motor may be driven without a change in the number of phases, the motor may be efficiently and stably driven.
48 Citations
23 Claims
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1. A motor driving apparatus comprising:
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an inverter including a main driver sequentially activating N phases of a motor and a spare driver activating a spare phase substituting for a faulted phase among the activated N phases; a detecting unit detecting the respective output signals of the N phases input from the inverter to the motor; a switching unit performing switching so that the spare phase of the spare driver is connected to the faulted phase of the exited N phases; and a controlling unit driving the inverter to determine whether or not a fault is generated in the phase of the main driver from the respective detected output signals of the N phases and control the switching unit so that the faulted phase is connected to the spare phase when the fault is generated in the phase. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A motor driving method comprising:
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(A) driving a main driver of an inverter to sequentially activate N phases designed in a motor; (B) detecting, in a detecting unit, the respective output signals of the activated N phases of the main driver input from the inverter to the motor; and (C) determining, in a controlling unit, whether or not a fault is generated in the phase of the main driver from the respective detected output signals of the N phases and performing switching so that the faulted phase is connected to a spare driver of the inverter substituting for the faulted phase when the fault is generated in the phase. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23)
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Specification