Title :
Performance evaluation and control of modular multilevel converter under system fault conditions
Author :
Narwal, Ajit ; Kim, Sungho ; Yousefpoor, Nima ; Bhattacharya, Surya
Author_Institution :
Dept. of ECE, NC State Univ., Raleigh, NC, USA
Abstract :
For industrial applications requiring medium and high-power supplies modular multilevel converter (MMC) based voltage source converters (VSC) offer advantages over traditional VSCs. These include achievement of higher voltage levels with utilization of lower voltage power semiconductor devices. The control structure of MMC for fault operating condition is proposed in this paper, and dynamic performance of the MMC based on the proposed control structures is further investigated in PSCAD/EMTDC environment. Real Time Digital Simulator (RTDS) results are also presented to verify the controller performance under normal and fault operating conditions.
Keywords :
electrical faults; power convertors; power semiconductor devices; MMC control structure; PSCAD-EMTDC environment; RTDS; VSC; fault operating condition; high-power supplies modular multilevel converter; industrial application; medium-power supply MMC; real time digital simulator; system fault condition; voltage power semiconductor device; voltage source converter; Capacitors; Control systems; Equations; Inverters; Mathematical model; Power conversion; Voltage control; Modular multilevel converter; fault operation condition; medium and high voltage power conversion; voltage source converter;
Conference_Titel :
Industrial Electronics Society, IECON 2013 - 39th Annual Conference of the IEEE
Conference_Location :
Vienna
DOI :
10.1109/IECON.2013.6700171