Title :
Accelerated model of Modular Multilevel Converters in PSCAD/EMTDC
Author :
Jianzhong Xu ; Chengyong Zhao ; Wenjing Liu ; Chunyi Guo
Author_Institution :
Electr. & Electron. Eng. Sch., North China Electr. Power Univ., Baoding, China
Abstract :
Modular Multilevel Converters (MMC) is an effective option for continuously growing demands of Voltage Sourced Converter based High Voltage Direct Current (VSC-HVDC) transmission. However, accurate modeling of MMC with high level in PSCAD/EMTDC is extremely time-consuming and hardware-requiring. Based on the Kirchhoff´s Law, an equivalent accelerated model for MMC is proposed. The essence of the new model is partition of one large-scale admittance matrix into substantial small-scale matrices, which is mathematically demonstrated with Nodal Analysis Method. Finally, the detailed electromagnetic transient simulations are implemented for comparisons of steady state and transient performances, and the results validate the proposed model.
Keywords :
CAD; HVDC power convertors; HVDC power transmission; electric admittance; power engineering computing; Kirchhoff law; MMC; PSCAD-EMTDC; VSC-HVDC transmission; accelerated model; electromagnetic transient simulations; equivalent accelerated model; large-scale admittance matrix; modular multilevel converters; nodal analysis method; steady state performances; transient performances; voltage sourced converter based high voltage direct current; Acceleration; EMTDC; Educational institutions; Mathematical model; PSCAD; Power conversion; Accelerated model; High Voltage Direct Current (HVDC); Modular multilevel converter (MMC); Nodal Analysis Method; PSCAD/EMTDC; Voltage source converter (VSC);
Conference_Titel :
Power and Energy Society General Meeting (PES), 2013 IEEE
Conference_Location :
Vancouver, BC
DOI :
10.1109/PESMG.2013.6672313
