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In this project, a buck half-bridge DC-DC converter is used as a single-
stage power factor correction (PFC) converter for feeding a voltage source
inverter (VSI) based permanent magnet brushless DC motor (PMBLDCM) drive.
The front end of this PFC converter is a diode bridge rectifier (DBR) fed
from pv power generation. The PMBLDCM is used to drive a compressor load
of an air conditioner through a three-phase VSI fed from a controlled DC
link voltage. The speed of the compressor is controlled to achieve energy
conservation using a concept of the voltage control at PV DC link
proportional to the desired speed of the PMBLDCM. Therefore the VSI is
operated only as an electronic commutator of the PMBLDCM. The stator
current of the PMBLDCM during step change of reference speed is controlled
by a rate limiter for the reference voltage at DC link. The proposed
PMBLDCM drive with PV voltage control based PFC converter is designed,
modelled and its performance
is simulated in Matlab-Simulink environment for an air conditioner
compressor driven through a 1.5 kW, 1500 rpm
PMBLDC motor. The evaluation results of the proposed speed control scheme
are presented to demonstrate an improved efficiency of the proposed drive
system with PFC feature in wide range of the speed and an Dc input
voltage.
·-Ò룺
In this project, a buck half-bridge DC-DC converter is used as a single-
stage power factor correction (PFC) converter for feeding a voltage source
inverter (VSI) based permanent magnet brushless DC motor (PMBLDCM) drive.
The front end of this PFC converter is a diode bridge rectifier (DBR) fed
from pv power generation. The PMBLDCM is used to drive a compressor load
of an air conditioner through a three-phase VSI fed from a controlled DC
link voltage. The speed of the compressor is controlled to achieve energy
conservation using a concept of the voltage control at PV DC link
proportional to the desired speed of the PMBLDCM. Therefore the VSI is
operated only as an electronic commutator of the PMBLDCM. The stator
current of the PMBLDCM during step change of reference speed is controlled
by a rate limiter for the reference voltage at DC link. The proposed
PMBLDCM drive with PV voltage control based PFC converter is designed,
modelled and its performance
is simulated in Matlab-Simulink environment for an air conditioner
compressor driven through a 1.5 kW, 1500 rpm
PMBLDC motor. The evaluation results of the proposed speed control scheme
are presented to demonstrate an improved efficiency of the proposed drive
system with PFC feature in wide range of the speed and an Dc input
voltage.
FUNCTION
pmbldcm_drive_PVcellby_indraneel_saki.mdl
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