Journal
IEEE TRANSACTIONS ON POWER DELIVERY
Volume 28, Issue 3, Pages 1723-1730Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TPWRD.2013.2251912
Keywords
Average-value model (AVM); electromagnetic-transients (EMT)-type programs; high-voltage direct-current (HVDC) transmission; modular multilevel converter (MMC); voltage-source converter (VSC)
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Voltage-source converter (VSC) technologies are rapidly evolving and increasing the range of applications in a variety of fields within the power industry. Existing two-and three-level VSC technologies are being superseded by the new modular multilevel converter (MMC) technology for HVDC applications. The computational burden caused by detailed modeling of MMC-HVDC systems in electromagnetic transient-type (EMT-type) programs complicates the simulation of transients when such systems are integrated into large networks. This paper develops and compares different types of models for efficient and accurate representation of MMC-HVDC systems. The results show that the use of a specific type of model will depend on the conducted analysis and required accuracy.
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