TY - GEN
T1 - Observer-based sensorless speed control of PM-assisted SynRM for direct drive applications
AU - Chakali, Anil K.
AU - Toliyat, Hamid A.
AU - Abu-Rub, Haitham
PY - 2010
Y1 - 2010
N2 - An interesting alternative for today's high efficiency variable speed drive is the Permanent Magnet-Assisted Synchronous Reluctance Motor (PMa-SynRM) drive. Generally, the reluctance torque of this motor is significant compared to the permanent magnet torque. This advantage of increased reluctance torque lends itself well to less use of expensive permanent magnet materials. Therefore, this solution will be cheaper than similar permanent magnet synchronous motor and also holds promise for an extended flux weakening operation. Due to its synchronous operation, speed sensorless control is possible along with higher power factor and better efficiency compared to induction motors. This paper implements vector control strategy for speed control of PMa-SynRM that is applied to a direct drive washing machine. It focuses on the sensorless speed control of the PMa-SynRM. Sliding mode observer technique is used to take advantage of the lower costs as well as increased system reliability which otherwise is not possible using the delicate speed or position sensors. The only requirements of the observer-based speed control system are use of digital signal processor, specialized and optimized to perform complex mathematical calculations. The feasibility and effectiveness of the control techniques are verified experimentally employing Texas Instruments TMS320F2812 eZDSP controller board and the overall PMa-SynRM drive system.
AB - An interesting alternative for today's high efficiency variable speed drive is the Permanent Magnet-Assisted Synchronous Reluctance Motor (PMa-SynRM) drive. Generally, the reluctance torque of this motor is significant compared to the permanent magnet torque. This advantage of increased reluctance torque lends itself well to less use of expensive permanent magnet materials. Therefore, this solution will be cheaper than similar permanent magnet synchronous motor and also holds promise for an extended flux weakening operation. Due to its synchronous operation, speed sensorless control is possible along with higher power factor and better efficiency compared to induction motors. This paper implements vector control strategy for speed control of PMa-SynRM that is applied to a direct drive washing machine. It focuses on the sensorless speed control of the PMa-SynRM. Sliding mode observer technique is used to take advantage of the lower costs as well as increased system reliability which otherwise is not possible using the delicate speed or position sensors. The only requirements of the observer-based speed control system are use of digital signal processor, specialized and optimized to perform complex mathematical calculations. The feasibility and effectiveness of the control techniques are verified experimentally employing Texas Instruments TMS320F2812 eZDSP controller board and the overall PMa-SynRM drive system.
UR - http://www.scopus.com/inward/record.url?scp=78650384560&partnerID=8YFLogxK
U2 - 10.1109/ISIE.2010.5637861
DO - 10.1109/ISIE.2010.5637861
M3 - Conference contribution
AN - SCOPUS:78650384560
SN - 9781424463916
T3 - IEEE International Symposium on Industrial Electronics
SP - 3095
EP - 3100
BT - ISIE 2010 - 2010 IEEE International Symposium on Industrial Electronics
T2 - 2010 IEEE International Symposium on Industrial Electronics, ISIE 2010
Y2 - 4 July 2010 through 7 July 2010
ER -