Voltage-Control Based Pmbldcm By Using Cuk Converter With Pfc

This paper deals with a Cuk dc–dc converter as a single-stage power-factor-correction converter for a permanent magnet (PM) brushless dc motor (PMBLDCM) fed through a diode bridge rectifier from a singlephase ac mains. A three-phase voltage-source inverter is used as an electronic commutator to operate the PMBLDCM driving an air-conditioner compressor. The speed of the compressor is controlled to achieve optimum air-conditioning using a concept of the voltage control at dc link proportional to the desired speed of the PMBLDCM. The stator currents of the PMBLDCM during step change in the reference PMBLDCM drive (PMBLDCMD) without PFC. speed are controlled within the specified limits by an addition of a rate limiter in the reference dc link voltage. The proposed induction motor-based Air-Con system operating in ―on/off‖ PMBLDCM drive (PMBLDCMD) is designed and modeled, and control mode. Its performance is evaluated in Matlab Simulink environment. A PMBLDCM has the developed torque proportional to its Simulated results are presented to demonstrate an improved phase current and its back electromotive force (EMF), which power quality at ac mains of the PMBLDCMD system in a wide is proportional to the speed [1]–[4]. Therefore, a constant range of speed and input ac voltage. Test results of a developed controller are also presented to validate the design and model of current in its stator windings with variable voltage across it’s the drive.