TY - GEN
T1 - Power capability improvement of interior permanent magnet synchronous motor drives using capacitive network
AU - Lee, Kahyun
AU - Ha, Jung Ik
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/5/24
Y1 - 2019/5/24
N2 - This paper proposes a method to improve the power capability of an interior PM synchronous motor by boosting its terminal voltages with a capacitive network. In the conventional drive fed by a voltage source inverter (VSI), the terminal voltages of the motor are limited to the dc voltage. Such limitations cause the torque capability to decrease at high speeds and thereby lower the maximum output power. To overcome this problem, the proposed drive introduces a capacitive network between the VSI and the motor. The series capacitors boost the motor terminal voltages beyond the inverter output voltages to increase the rated speed, resulting in improved power capability. The enhanced power capability at high speeds and the design freedom of the rated speed are particularly advantageous in fan-load applications. This paper presents a dynamic d-q axis model, operating characteristics, and operable area of the proposed IPMSM drive. Experimental results are given to verify the feasibility and effectiveness of the system.
AB - This paper proposes a method to improve the power capability of an interior PM synchronous motor by boosting its terminal voltages with a capacitive network. In the conventional drive fed by a voltage source inverter (VSI), the terminal voltages of the motor are limited to the dc voltage. Such limitations cause the torque capability to decrease at high speeds and thereby lower the maximum output power. To overcome this problem, the proposed drive introduces a capacitive network between the VSI and the motor. The series capacitors boost the motor terminal voltages beyond the inverter output voltages to increase the rated speed, resulting in improved power capability. The enhanced power capability at high speeds and the design freedom of the rated speed are particularly advantageous in fan-load applications. This paper presents a dynamic d-q axis model, operating characteristics, and operable area of the proposed IPMSM drive. Experimental results are given to verify the feasibility and effectiveness of the system.
KW - Boost inverter
KW - Capacitor
KW - High-power drive
KW - Permanent magnet synchronous motor
KW - Voltage source inverter
UR - http://www.scopus.com/inward/record.url?scp=85067099889&partnerID=8YFLogxK
U2 - 10.1109/APEC.2019.8722103
DO - 10.1109/APEC.2019.8722103
M3 - Conference contribution
AN - SCOPUS:85067099889
T3 - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
SP - 2597
EP - 2602
BT - 34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019
Y2 - 17 March 2019 through 21 March 2019
ER -