Design of a Microcontroller Based Pfc
نویسنده
چکیده
With the increasing demand for power from the ac line and more stringent limits for power quality, power factor correction has gained great attention in recent years. A variety of circuit topologies and control methods have been developed for the PFC application. International Standards in the area of compliance of a product’s AC mains current harmonics have forced that new power supply design must include the power factor correction at the front end. The new trend in Power Supply is towards the digital control. This paper discusses the design of a controller for Power Factor Correction (PFC). A microcontroller based PFC design is proposed and design issues are discussed. PFC is simulated using MATLAB and results are reported. Interface requirement between the power converter and microcontroller are discussed.
منابع مشابه
Design and Implementation of Microcontroller-Based Controlling of Power Factor Using Capacitor Banks with Load Monitoring
Power factor correction (PFC) is a technique of counteracting the undesirable effects of electric loads that create a power factor that is less than one. Power factor correction may be applied either by an electrical power transmission utility to improve the stability and efficiency of the transmission network or correction may be installed by individual electrical customers to reduce the costs...
متن کاملDesign and Implementation of the Predictive Current Control Strategy in the Single Phase Photovoltaic Grid-Connected Inverter Based on Microcontroller
In this paper, photovoltaic (PV) grid-connected inverter which is the core device in PV grid-connected system has been in depth research.An improved predictive current controller has been developed by the Authors for single-phase grid-connected voltage source inverters (VSI).Based on DSP TMS320LF2407A, a 10 kW single-phase grid-connected inverter has been built in this paper.Thus is aimed at us...
متن کاملDigital Implementation of Pfc Half Bridge Converter Fed Pmbldc Motor Using Microcontroller
Digital Simulation and implementation of a Power Factor Correction (PFC) half bridge converter based adjustable speed voltage controlled VSI fed PMBLDC motor is presented in this paper. A single-phase AC-DC converter topology based on the half bridge converter is employed for PFC which ensures near unity power factor over wide speed range. The proposed speed control scheme has the concept of DC...
متن کاملDesign and Construction of a Sensorless Circuit for Brushless DC Motor using Third Harmonic back Electromotive Force
In this paper the method of sensorless startup of direct current brushless motor using third harmonic back Electromotive Force (EMF) and motor startup using microcontroller for pulse width modulation, power switch control and motor output analysis is presented which renders RPM control and high speed achievement for motor. The microcontroller is used for processor and MOSFETs are used for power...
متن کاملMicrocontroller–Based Modified SEPIC Converter for Driving Lamp with Power Factor Correction
A methodological study of electronic ballast for electrode less lamps including design and development issues is presented in this paper. The ballast is intended to feed a 300 W ultra violet lamp at 100 kHz with dimming feature. The proposed topology is composed of a Single-Ended Primary Inductance Converter (SEPIC), used as power factor correction (PFC) stage, integrated with a resonant half-b...
متن کامل