Control de velocidad por cambio de frecuencia de motor trifásico sincrónico usando microcontroladores avanzados e interfaz serial para la visualización de resultados

Abstract

The project presented below, describes the operation, development and implementation of a prototype engine controller for brushless motors BLDC (Brushless Direct Current) with and without Hall Effect sensors, developed by Microchip in application notes AN857A and AN957. These notes develope two types of programs one in ASM (assembler) language, that handle a BLDC motor without Hall effect sensor and the another for BLDC motors with Hall effect sensor. This project implemented both programs. Furthermore, this report describes the application using the PIC16F877A microcontroller, which will serve to control the project. In this device will be programmed both of the selected for this implementation. The project will describe the operation, structure and operation of the BLDC motor and the Hall effect sensor. Complemented with the implementation of the power phase of the speed controller, comprising a three-phase H bridge designed with Ntype MOSFET's