TY - RPRT TI - Zero-Cost Closed-Loop Discharging Method for Modular Multilevel Converter Submodules Without External Circuits AU - Pan, Jianyu AU - Ke, Ziwei AU - Al Sabbagh, Muneer AU - Na, Risha AU - Zhang, Julia AU - Wang, Jin AU - Xu, Longya PY - 2019 DO - 10.1109/tia.2019.2916830 UR - https://www.osti.gov/biblio/1577863 ID - 1577863 ER -