1. BLDC Motor control using FPGA and LABVIEW
Author:
Gabriel ZSURZSAN
Scientific supervisor:
Prof. dr. eng. Aurel GONTEAN

2. Motivation Motors – a basic component of our lives
FPGA – challenging but extremely flexible
LabVIEW – powerful and intuitive development platform
Wii Remote – adds a much-needed fun factor and freedom of control to the project
Gabriel ZSURZSAN

3. The Hardware Platform Nintendo Wii Remote
Hurst BLDC motor
Motor Driver (partial schematic)
Spartan 3E Starter Kit
Gabriel ZSURZSAN

4. The Software Platform
LabVIEW 2009 provides a comprehensive development environment allowing access to all the resources necessary in order to implement the present project, either in its standard form or through one of its modules
FPGA Module
PID Module
Gabriel ZSURZSAN

5. The Software Platform LabVIEW greatly shortens development time
Gabriel ZSURZSAN

6. Full project chain
The WiiMote communicates with the laptop through Bluetooth
LabVIEW uses a .NET framework DLL in order to initialize the remote and interpret the data received
Gabriel ZSURZSAN

7. Full project chain
LabVIEW FPGA module manages the programming of the FPGA, as well as communication between the host and target VIs through USB
Gabriel ZSURZSAN

8. Full project chain Driver
The FPGA generates a PWM signal to drive the motor
The Hall signals generated on the BLDC side are read by the FPGA, determining correct energizing of driver transistors and motor speed for PID loop adjustments
PID feedback loop is implemented on the FPGA
Driver
Gabriel ZSURZSAN

9. Interface
Straightforward
Intuitive
Easy to use
Gabriel ZSURZSAN

10. Some results
Gabriel ZSURZSAN

11. Observations & Conclusions
Hall sensors are really noisy
WiiMote accelerometer is very sensitive
PID loop manual tuning is difficult and may take long
WiiMote control is very intuitive, extra visual feedback added by the implemented 3D model
LabVIEW allows for easily interpretable results
PID response follows the setpoint accurately, giving no overshoot but a 10% undershoot
Gabriel ZSURZSAN

12. My personal remark:
It was FUN!
Gabriel ZSURZSAN