Power Quality Improvement of PMBLDCM Driven Air-Conditioner Using a Single-Stage PFC Boost Bridge Converter
ABSTRACT This paper aims at a boost bridge DC-DC converter as a single-stage power factor correction (PFC) converter for a permanent magnet brushless DC motor (PMBLDCM) driven air conditioner. This PFC converter is fed from a single-phase AC mains through a diode bridge rectifier (DBR) and connected to a voltage source inverter (VSI) feeding the PMBLDCM. The proposed PFC boost bridge converter based PMBLDCM drive is controlled for its variable speed operation to improve efficiency of the air conditioning system. The control scheme for the PFC converter based PMBLDCM drive is designed, modeled and its simulation is carried out in Matlab-Simulink environment for an air conditioner compressor driven through a 3.75 kW, 1500 rpm PMBLDC motor. The obtained results are presented to validate the effectiveness of the proposed PFC converter based adjustable speed drive in wide range of the speed and an AC input voltage.
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ABSTRACT: Solid-state switch mode AC-DC converters having high-frequency transformer isolation are developed in buck, boost, and buck-boost configurations with improved power quality in terms of reduced total harmonic distortion (THD) of input cur- rent, power-factor correction (PFC) at AC mains and precisely regulated and isolated DC output voltage feeding to loads from few Watts to several kW. This paper presents a comprehensive study on state of art of power factor corrected single-phase AC-DC con- verters configurations, control strategies, selection of components and design considerations, performance evaluation, power quality considerations, selection criteria and potential applications, latest trends, and future developments. Simulation results as well as comparative performance are presented and discussed for most of the proposed topologies.IEEE Transactions on Industrial Informatics 11/2011; 7:540-556. DOI:10.1109/TII.2011.2166798 · 8.79 Impact Factor