Project Description

Abstract:

              This project is mainly used to control the speed of the bldc motor by employing luo converter. The LUO converter is used to step up the input dc voltage. The luo converter output voltage depends on the duty cycle of the converter. The BLDC motor has high reliability, high efficiency high torque/inertia ratio, improved cooling, low radio frequency interference, and noise and requires practically no maintenance.

Proposed System

              This project is proposed to control the speed of bldc motor by employing luo converter. The AC supply is applied to the bridge rectifier, the bridge rectifier converts ac supply into dc supply. That dc supply is applied to luo converter, the luo converter is boost the input voltage (i.e) if input 15v dc means luo converter output voltage is greater than 15v dc voltage. That dc voltage is given to the three phase inverter,it converts the dc voltage into three phase ac voltage. Three phase ac voltage is connected to the BLDC motor. The bldc motor have hall sensor. The hall sensor output is feedback to the controller. The three phase inverter Pulse depends on the hall sensor of bldc motor.The DSPIC controller key functions are used to control the bldc motor speed.

Hardware Requirements

• ATMEGA328
• Hall Sensor
• Transformer
• BLDC Motor
• LCD Display
• Power Supply Unit

Software Requirements

• Arduino IDE
• Proteus Simulation
• Embedded C

• Power Supply

Advantage/Benefits:

• Easy to control speed
• Highly reliable
• High efficiency and lessmaintanance
• Less noise

Applications

• Industrial applications
• Water pumping system

Conclusion:

This project is control the speed of the bldc motor by employing luo converter and three phase inverter. This inverter has low switching losses and bldc motor control without any additional control. And also study the response of the all characteristics and theory. This project is highly reliable and obtains high efficiency of this control technique

Project Block Diagram