TY - RPRT TI - Capacitor Voltage Ripple Estimation and Optimal Sizing of Modular Multi-Level Converters for Variable-Speed Drives AU - Ke, Ziwei AU - Pan, Jianyu AU - Sabbagh, Muneer Al AU - Na, Risha AU - Zhang, Julia AU - Wang, Jin AU - Xu, Longya PY - 2020 DO - 10.1109/tpel.2020.2988403 UR - https://www.osti.gov/biblio/1848504 ID - 1848504 ER -