Download A boost-voltage motor driver with a charge pump (CP

VARIABLE-FORM CARRIER-BASED PWM FOR BOOST-VOLTAGE
MOTOR DRIVER WITH A CHARGE-PUMP CIRCUIT
ABSTRACT:
A boost-voltage motor driver with a charge pump (CP) circuit has higher
efficiency than the conventional boost-voltage motor driver with a chopper circuit.
This paper presents a variable-form carrier-based (VFCB) pulsewidth modulation
(PWM) technique for the driver with the CP circuit. This technique has two
triangular carriers and a variable-form carrier that is dependent on the voltage
command signals. The technique is compared with the space vector modulation
(SVM) technique in terms of the number of switching cycles, harmonics in the
output voltage, linear modulation range, input power to the CP capacitor,
processing time, and efficiency. The VFCB PWM technique is confirmed to
operate the driver with the CP circuit at the same performance level as the SVM
technique, with shortened processing time.
INTRODUCTION:
In the applications, the boost-voltage converter transforms the low voltage supplied
from batteries, fuel cells, or ultra capacitors to a high voltage to drive the motor.
Furthermore, the boost-voltage motor driver offers an effective and highly
responsive motor drive. These advantages allow boost-voltage motor drivers to be
employed in various other applications.
The most commonly used boost-voltage converter used in boost-voltage motor
drivers is a chopper circuit with an inductor. Alternatively, a boost-voltage motor
driver with the charge pump (CP) circuit has been proposed.
These drivers can have output voltage with lower harmonics and operate in higher
efficiencies, although they have a more complex circuit configuration than
conventional drivers with a chopper circuit.
In the Appendix, the driver with the CP circuit is compared with a conventional
driver with a chopper circuit under the conditions employed in this study and is
confirmed to perform at higher efficiencies.
PROPOSED SYSTEM:
In the applications, the boost-voltage converter transforms the low voltage supplied
from batteries, fuel cells, or ultracapacitors to a high voltage to drive the motor.
Furthermore, the boost-voltage motor driver offers an effective and highly
responsive motor drive. These advantages allow boost-voltage motor drivers to be
employed in various other applications. The most commonly used boost-voltage
converter used in boost-voltage motor drivers is a chopper circuit with an inductor.
Alternatively, a boost-voltage motor driver with the charge pump (CP) circuit has
been proposed. These drivers can have output voltage with lower harmonics and
operate in higher efficiencies, although they have a more complex circuit
configuration than conventional drivers with a chopper circuit. In the Appendix,
the driver with the CP circuit is compared with a conventional driver with a
chopper circuit under the conditions employed in this study and is confirmed to
perform at higher efficiencies.
ADVANTAGES:
 High efficiency.
 Increase in the control frequency
BLOCK DIAGRAM:
TOOLS AND SOFTWARE USED:
 MPLAB – microcontroller programming.
 ORCAD – circuit layout.
 MATLAB/Simulink – Simulation
APPLICATIONS:
 Electrical vehicles.
CONCLUSION:
This paper has presented the VFCB PWM technique for the boost-voltage
motor driver with the CP circuit. This PWM technique uses two triangular carriers
and the VF carrier that is dependent on the voltage command signals and generates
the signals for the switches of the inverter and CP circuit
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of the art,” IEEE Trans. Veh. Technol., vol. 59, no. 6, pp. 2806–2814, Jul. 2010.
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[4] H. Matsumoto, “Charge strategy in boost motor driver with EDLCs,” IEEE
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