TY - GEN
T1 - Multilevel Converter for Variable Speed Medium-Voltage Switched Reluctance Motor Drives
AU - Shehada, Ahmed
AU - Krishnan, R.
AU - Beig, Abdul R.
N1 - Funding Information:
This work was funded by the Abu Dhabi National Oil Company (ADNOC), Abu Dhabi, United Arab Emirates.
Publisher Copyright:
© 2020 IEEE.
PY - 2020/10/11
Y1 - 2020/10/11
N2 - Electric drives have gained ground in multi-megawatt applications, where synchronous and induction motors are mainly used. Switched reluctance motors have potential in high power, high reliability applications. But so far no suitable converter has been proposed for this motor that possesses the scalability, reliability, and efficiency required at such high power and voltage levels. In this paper, a novel converter suitable for multi-megawatt medium-voltage switched reluctance motor drives is proposed and analyzed. The converter is easily scalable, thanks to the modular construction based on chopper cells with capacitors. The converter can easily accommodate redundant cells, which makes it highly reliable. High efficiency is achieved by virtue of multilevel operation and due to the use of low-voltage devices in the cells. Contributions in this work include the novel converter topology, and a comprehensive control algorithm that overcomes the challenges of balancing and controlling cell capacitor voltages. The converter's operation and control are studied through extensive simulation of a 2 MW switched reluctance motor drive system. The simulation results validate the proposed converter's concept, suggesting it is as a viable option for multi-megawatt medium-voltage motor drives. Simulations also show that the proposed converter has higher efficiency than the conventional 2-level asymmetric switched reluctance motor converter.
AB - Electric drives have gained ground in multi-megawatt applications, where synchronous and induction motors are mainly used. Switched reluctance motors have potential in high power, high reliability applications. But so far no suitable converter has been proposed for this motor that possesses the scalability, reliability, and efficiency required at such high power and voltage levels. In this paper, a novel converter suitable for multi-megawatt medium-voltage switched reluctance motor drives is proposed and analyzed. The converter is easily scalable, thanks to the modular construction based on chopper cells with capacitors. The converter can easily accommodate redundant cells, which makes it highly reliable. High efficiency is achieved by virtue of multilevel operation and due to the use of low-voltage devices in the cells. Contributions in this work include the novel converter topology, and a comprehensive control algorithm that overcomes the challenges of balancing and controlling cell capacitor voltages. The converter's operation and control are studied through extensive simulation of a 2 MW switched reluctance motor drive system. The simulation results validate the proposed converter's concept, suggesting it is as a viable option for multi-megawatt medium-voltage motor drives. Simulations also show that the proposed converter has higher efficiency than the conventional 2-level asymmetric switched reluctance motor converter.
UR - https://www.scopus.com/pages/publications/85097192737
U2 - 10.1109/ECCE44975.2020.9236425
DO - 10.1109/ECCE44975.2020.9236425
M3 - Conference contribution
AN - SCOPUS:85097192737
T3 - ECCE 2020 - IEEE Energy Conversion Congress and Exposition
SP - 6258
EP - 6265
BT - ECCE 2020 - IEEE Energy Conversion Congress and Exposition
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 12th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2020
Y2 - 11 October 2020 through 15 October 2020
ER -
