MOTOR DRIVE CONTROL APPARATUS, MOTOR DRIVE CONTROL METHOD AND PROGRAM OF THE SAME
First Claim
1. A motor drive control apparatus, comprising:
- a first pulse pattern generation processing module which generates a synchronous PWM signal in a first pulse pattern formed of multiple pulses defined in accordance with two or more parameters based on a voltage command value; and
a second pulse pattern generation processing module which generates a synchronous PWM signal in a second pulse pattern formed of a single pulse based on a voltage command value, wherein the first pulse pattern generation processing module has a pulse pattern modification processing module which modifies the individual parameters based on a change in voltage amplitude in switching pulse patterns between the first pulse pattern and the second pulse pattern.
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Accused Products
Abstract
In switching between asynchronous PWM control and synchronous PWM control, control can be simplified. An apparatus has a first pulse pattern generation processing module which generates a synchronous PWM signal in a first pulse pattern formed of multiple pulses defined in accordance with two or more parameters based on a voltage command value, and a second pulse pattern generation processing module which generates a synchronous PWM signal in a second pulse pattern formed of a single pulse. The first pulse pattern generation processing module modifies the individual parameters in switching pulse patterns between the first pulse pattern and the second pulse pattern. The individual parameters are modified to move the pulse patterns, and thus control can be simplified.
51 Citations
20 Claims
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1. A motor drive control apparatus, comprising:
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a first pulse pattern generation processing module which generates a synchronous PWM signal in a first pulse pattern formed of multiple pulses defined in accordance with two or more parameters based on a voltage command value; and
a second pulse pattern generation processing module which generates a synchronous PWM signal in a second pulse pattern formed of a single pulse based on a voltage command value, wherein the first pulse pattern generation processing module has a pulse pattern modification processing module which modifies the individual parameters based on a change in voltage amplitude in switching pulse patterns between the first pulse pattern and the second pulse pattern. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A motor drive control method, comprising:
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generating a synchronous PWM signal in a first pulse pattern formed of multiple pulses defined in accordance with two or more parameters based on a voltage command value; and
generating a synchronous PWM signal in a second pulse pattern formed of a single pulse based on a voltage command value, wherein the individual parameters are modified based on a change in voltage amplitude in switching pulse patterns between the first pulse pattern and the second pulse pattern.
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20. A program of a motor drive control method which allows a computer to function as:
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a first pulse pattern generation processing module which generates a synchronous PWM signal in a first pulse pattern formed of multiple pulses defined in accordance with two or more parameters based on a voltage command value; and
a second pulse pattern generation processing module which generates a synchronous PWM signal in a second pulse pattern formed of a single pulse based on a voltage command value, wherein the first pulse pattern generation processing module has a pulse pattern modification processing module which modifies the individual parameters based on a change in voltage amplitude in switching pulse patterns between the first pulse pattern and the second pulse pattern.
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Specification