3 Phase Permanent Magnet Ac Synchronous Machines

Electrical Machines

What you'll learn

Learn about the basics of Electrical Machines

Learn about the working principles of Permanent Magnet synchronous Machines

Learn about Motor Control

Learn about different Losses in Electrical Machine

Requirements

Background in Electrical Engineering and Mathematics- both for Undergrades and Masters students

Description

This course is about the 3 Phase permanent magnet electrical machines. In the 1st and 2nd section, you will go through the fundamentals of mathematics and electromagnetism. These topics includes dot product, cross product, flux, Maxwell equations like Faraday’s law and Ampere’s law. This will help you in understanding the course ahead. 3rd section is about the materials that are used in electrical machines. These materials include the soft and hard magnetic materials. 4th section is about developing the basic equations for the magnetic circuit. 5th section is about diving deep into the 3 phase PM synchronous machine. Here you will learn about the basics of the PM machines, rotating magnetic fields, back EMF and torque equations. You will learn about different types of winding arrangements. Here you will also learn about the pitch and distribution factors and why we use it in electrical machines. In section 6, you will learn about the motor control especially the Clark and Park transformation. It also shows how to proof the torque equation in the alpha_beta and DQ reference frames. In section 7, you will go through different losses that occur in electrical machines and what is normally done within the manufacturing to reduce these losses.

Overview

Section 1: Introduction

Lecture 1 Motivational Video

Section 2: Chapter 1: Mathematical Fundamentals

Lecture 2 Dot product

Lecture 3 Cross Product

Lecture 4 Flux

Section 3: Electromagnetic Fundamentals

Lecture 5 Maxwell Equations

Lecture 6 Faraday's law

Lecture 7 Ampere's Law

Lecture 8 Lenz's Law

Section 4: Materials in Electrical Machines

Lecture 9 Magnetic Materials

Lecture 10 Soft Magnetic Materials (Electrical Steel)

Lecture 11 Hard Magnetic Material (Permanent Magnets)

Section 5: Magnetic Circuit

Lecture 12 Introduction

Lecture 13 Electrical Circuit, Magnetic Circuit and C Core with coil and No airgap

Lecture 14 Flux linkage and inductance

Lecture 15 C Core with coil and airgap

Lecture 16 C Core with magnet and no airgap

Lecture 17 C Core with magnet and airgap

Lecture 18 C Core with magnet, Coil and airgap

Lecture 19 Operating Point of the Permanent Magnet

Section 6: 3 Phase Permanent Magnet AC synchronous Machines

Lecture 20 Introduction

Lecture 21 Lorentz Force

Lecture 22 Basic working principle of 3 phase PM machine

Lecture 23 Rotating Magnetic field Concept

Lecture 24 Back EMF due to rotating magnetic field

Lecture 25 Back EMF due to permanent magnets

Lecture 26 Torque Equation : Proof

Lecture 27 Winding Arrangments

Lecture 28 Pitch Factor

Lecture 29 Distribution Factor

Lecture 30 Relationship Between Electrical and Mechanical Quantities

Section 7: Motor Control

Lecture 31 Introduction

Lecture 32 Clark Transformation

Lecture 33 Torque Equation in Alpha Beta reference frame : Proof

Lecture 34 Park Transformation

Lecture 35 Torque Equation in DQ reference frame : Proof

Lecture 36 Permanent Magnet Machines Rotor shapes based on the saliency

Section 8: Losses in Electrical Machines

Lecture 37 Introduction

Lecture 38 DC losses

Lecture 39 Iron losses

Lecture 40 Permanent Magnet losses

Lecture 41 AC losses

Lecture 42 Windage losses

Lecture 43 Bearing losses

For the Electrical engineers