Field Oriented Control — Lesson 8

This lesson covers the principles of motor control, focusing on electric vehicles. It explains how to control the speed and torque of a motor using voltage and how to measure these parameters. The lesson also discusses the importance of safety measures in motor control, including protection against overcurrent, overvoltage, undervoltage, and temperature rise. It further explains the concept of flux weakening and the use of software filters to smooth out noise in the signal. The lesson concludes with an MTPA and flux weakening blocks.

Video Highlights

00:17 - Introduction
05:27 - Concept of conventional closed loop control
11:13 - Hygiene items: ADC software filter and signal conditioning
14:09 - Introduction to the concept of software filter
17:21 - Home assignment
21:35 - Explanation of protection boundaries
26:58 - MTPA block and flux weakening block
32:47 - Discussion on work around BEMF for high speed

Key Takeaways

- Motor control involves applying voltage to control the speed and torque of a motor.
- Safety measures in motor control include protection against overcurrent, overvoltage, undervoltage, and temperature rise.
- Flux weakening is a technique used to reduce the back emf and thus increase the speed of the motor.
- Software filters are used to smooth out noise in the signal from the motor.
- The speed and torque of a motor can be measured using sensors, and these measurements are crucial for effective control.