PT Unknown AU Goertz, M Wenig, S Suriyah, M Leibfried, T TI Determination of Transient Overvoltages in a Bipolar MMC-HVDC Link with Metallic Return SE 2018 Power Systems Computation Conference (PSCC) PY 2018 BP Article EP no: DI 10.23919/PSCC.2018.8442507 LA english PI Dublin, Irland ER