Transcription of Integrated Power Factor Correction (PFC) and Sensorless ...
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Integrated Power Factor Correction (PFC) and Sensorless ...
2008 Microchip Technology 1AN1208 INTRODUCTION In recent years, the motor control industry has beenfocusing on designing Power efficient motor controldrives for a wide variety of applications. The consumerdemand for improved Power quality standards is drivingthis trend. The Power quality can be enhanced byimplementing Power Factor Correction (PFC), andefficient control of a motor can be realized usingSensorless Field Oriented Control (FOC) appliance industry often requires low-costimplementation of these algorithms. This can beachieved by integrating PFC and Sensorless FOCalgorithms on a single Digital Signal Controller (DSC). This application note describes the process ofintegrating two complex applications: PFC and Sensor-less FOC. These applications are implemented on aPermanent Magnet Synchronous Motor (PMSM). Inaddition, this application note also describes the inte-gration of the algorithms, lists the necessary hardwarerequirements, and provides the guidelines to optimizethe development Integrated solution is based on these applicationnotes: AN1106, Power Factor Correction in Power Conversion Applications Using the dsPIC DSC AN1078, Sensorless Field Oriented Control of PMSM Motors Using dsPIC30F or dsPIC33F Digital Signal ControllersThe application note AN1106, describes the PowerFactor
2008 Microchip Technology Inc. DS01208A-page 3 AN1208 A NOVEL APPROACH FOR DIGITAL IMPLEMENTATION OF PFC AND SENSORLESS FOC ALGORITHMS Figure 2 shows a block diagram of the PFC and Sensorless FOC control loops implemented digitally using the dsPIC DSC device.
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