Three phase BLDC motor controller using FOC algorithm

In this project it is intend to design and develop a three phase BLDC motor control for the electric vehicle. The BLDC motors are electronically commutated. These motor require rotor position sensor to properly perform the phase commutation. this project will be initiated by the designing of the har

Project Title

Three phase BLDC motor controller using FOC algorithm

Project Area of Specialization

Electrical/Electronic Engineering

Project Summary

In this project it is intend to design and develop a three phase BLDC motor control for the electric vehicle. The BLDC motors are electronically commutated. These motor require rotor position sensor to properly perform the phase commutation. this project will be initiated by the designing of the hardware part which consists of inverter circuit, Driver circuit for the MOSFETs, Voltage regulators, Control circuit and amplifiers. The purpose of the control circuit is to transmit the control signals to the drive circuit in order to drive the MOSFET of the inverter.

First of all, inverter along with its driver circuit will be designed and simulated on the software. Then first PCB based prototype will be developed for this hardware after the testing of this prototype we will move towards the software part. in this part of the project, we will develop our FOC algorithm. Basically, in electric vehicle, we would want a fine control over the torque to accelerate or slow down the motor. In this algorithm, our fundamental purpose is to control the amount of current through the windings so the torque of the motor will be control.

Basically, this algorithm will be developed to control the voltage of three phase BLDC motor. The three-phase current ia, ib, ic will be converted to 2-phase current i Alpha and I Beta. This is called the Clarke transformation. Through this transformation, only two control systems will be needed to control three phase current and the task of the microcontroller will be reduced. Further i-alpha and i-Beta converted in to ID and IQ, that will be the DC quantities. This will be done through Park’s transformation. PI controller will be use and these controllers only deal with DC quantities. These controllers will generate error signals according to the reference and the feedback currents and then these error signal will be converted to the voltage signals. Inverse of the Clarke transform will be also utilized here in order to convert 2-phase in 3-phase signal.

We will use virtual environment initially to test our algorithm. After testing we will upload this program in the microcontroller. now the rest of the hardware will be designed for the feedback like current amplifier and then second PCB based prototype will be developed (DIP components).

After the successful testing of the DIP components based PCB, we will focused on reducing the size and will improve the design of our prototype. Then a professional SMD component based PCB layout will be designed which will be send for fabrication. After the fabrication is done, we will test our final hardware

Project Objectives

The Fundamental task of the project is to design and develop 3 phase BLDC motor controller using a field-oriented control technique as using indirect control method. The project will be used for electric vehicles in the future so we have to convert the project into a professional product.

Project Implementation Method

In this project it is intend to design and develop a three phase BLDC motor control for the electric vehicle. The BLDC motors are electronically commutated. These motor require rotor position sensor to properly perform the phase commutation. this project will be initiated by the designing of the hardware part which consists of inverter circuit, Driver circuit for the MOSFETs, Voltage regulators, Control circuit and amplifiers. The purpose of the control circuit is to transmit the control signals to the drive circuit in order to drive the MOSFET of the inverter.

First of all, inverter along with its driver circuit will be designed and simulated on the software. Then first PCB based prototype will be developed for this hardware after the testing of this prototype we will move towards the software part. in this part of the project, we will develop our FOC algorithm. Basically, in electric vehicle, we would want a fine control over the torque to accelerate or slow down the motor. In this algorithm, our fundamental purpose is to control the amount of current through the windings so the torque of the motor will be control.

Basically, this algorithm will be developed to control the voltage of three phase BLDC motor. The three-phase current ia, ib, ic will be converted to 2-phase current i Alpha and I Beta. This is called the Clarke transformation. Through this transformation, only two control systems will be needed to control three phase current and the task of the microcontroller will be reduced. Further i-alpha and i-Beta converted in to ID and IQ, that will be the DC quantities. This will be done through Park’s transformation. PI controller will be use and these controllers only deal with DC quantities. These controllers will generate error signals according to the reference and the feedback currents and then these error signal will be converted to the voltage signals. Inverse of the Clarke transform will be also utilized here in order to convert 2-phase in 3-phase signal.

We will use virtual environment initially to test our algorithm. After testing we will upload this program in the microcontroller. now the rest of the hardware will be designed for the feedback like current amplifier and then second PCB based prototype will be developed (DIP components).

After the successful testing of the DIP components based PCB, we will focused on reducing the size and will improve the design of our prototype. Then a professional SMD component based PCB layout will be designed which will be send for fabrication. After the fabrication is done, we will test our final hardware

Benefits of the Project

1)Electric Vehicles provide good economic benefits by reducing fuel costs and shifting consumptions towards renewable energy and also reducing maintenance costs.

2) Electric vehicle has no tailpipe emissions and provides a sustainable solution for transport

3) In conventional vvehicles we have to go fuel stations to refuel the vehicle but in case of electric vehicle we can recharge the battery even at home

 4) currently in Pakistan all parts of Electric vehicle are imported and then assembled. Now motivation of this project is to design the controller of electric vehicle.

5)In this project that controller that is being design is based on FOC (Field Oriented Control) algorithm which is the most efficient controlling method for three Phase motors.

6) This control system will minimize the torque ripples and will provide smooth driving experience in electric Vehicles.

7) This controlling method also increases the efficiency of the motor and decreases the sound of the motor.

8) Besides electric Vehicles this control system can also be used in Industries for purpose of motor control where smooth operation of motor is required

Technical Details of Final Deliverable

1) BLDC motor controller for upto 2KW electric vehicle applications

2) Smooth operation of Motor with minimized torque ripples

3) SMD components based dual layer PCB with reduced size

Final Deliverable of the Project

HW/SW integrated system

Core Industry

Others

Other Industries

Transportation

Core Technology

Clean Tech

Other Technologies

Others

Sustainable Development Goals

Industry, Innovation and Infrastructure, Sustainable Cities and Communities

Required Resources

If you need this project, please contact me on contact@adikhanofficial.com