Datasheet

AN1208
DS01208A-page 18 © 2008 Microchip Technology Inc.
CONCLUSION
Considering the consumer demand for increased effi-
ciency and growing desires for environmental stan-
dards, designers are always looking out for new
algorithms that can be used to develop low-cost, power
efficient motor control systems.
The dsPIC DSC device’s high processing power and
peripheral-rich platform enable the implementation of
complex algorithms on a single chip. The Sensorless
FOC process uses three control loops to compensate
the current and the speed. The PFC process uses two
control loops to compensate the input current and out-
put voltage. All of these compensators use a PI control-
ler to compensate for variations in these parameters,
which requires very high processing power and finer
control of the system. The dsPIC DSC devices are best
suited to handle the above requirements because of
the high resolution, good processing speed, availability
of advanced analog peripherals, and the variety of
instructions that support these functions.
Microchip has various resources to assist you in
developing this integrated system. Contact your local
Microchip sales office if you would like further support.
REFERENCES
Several application notes have been published by
Microchip Technology, which describe the use of dsPIC
DSC devices for motor control applications.
• For ACIM control see:
-AN984, An Introduction to AC Induction
Motor Control Using the dsPIC30F MCU
(DS00984)
-AN908, Using the dsPIC30F for Vector Control of
an ACIM (DS00908)
- GS004, Driving an ACIM with the dsPIC DSC
MCPWM Module (DS93004)
-AN1162, Sensorless Field Oriented Control
(FOC) of an AC Induction Motor (ACIM)
(DS01162)
- AN1206, Sensorless Field Oriented Control
(FOC) of an AC Induction Motor (ACIM)
Using Field Weakening (DS01206)
• For BLDC motor control see:
-AN901, Using the dsPIC30F for Sensorless
BLDC Control (DS00901)
-AN957, Sensored BLDC Motor Control Using
dsPIC30F2010 (DS00957)
-AN992, Sensorless BLDC Motor Control
Using dsPIC30F2010 (DS00992)
-AN1083, Sensorless BLDC Control with
Back-EMF Filtering (DS01083)
- AN1160, Sensorless BLDC Control with
Back-EMF Filtering Using a Majority Function
(DS01160)
• For PMSM control see:
- AN1017, Sinusoidal Control of PMSM Motors
with dsPIC30F DSC (DS01017)
-AN1078, Sensorless Field Oriented Control
of PMSM Motors (DS01078)
• For Power Control see:
-AN1106, Power Factor Correction in Power
Conversion Applications Using the dsPIC
DSC (DS01106)
• For information on the dsPICDEM MC1 Motor
Control Development Board see:
- dsPICDEM MC1 Motor Control Development
Board User’s Guide (DS70098)
- dsPICDEM MC1H 3-Phase High Voltage
Power Module User’s Guide (DS70096)
- dsPICDEM MC1L 3-Phase Low Voltage
Power Module User’s Guide (DS70097)
- Explorer 16 Development Board User’s
Guide (DS51589)
-
Motor Control Interface PICtail Plus Daughter
Board User’s Guide (DS51674)
These documents are available on the Microchip web
site (www.microchip.com).