Abstract
Voltage sourced converter (VSC) exhibits a brilliant open door in different fields of the power system. Newly introduced modular multilevel converters (MMCs) are expected to replace two- and three-level VSC-based configurations for high-voltage direct current (HVDC) transmission systems due to their advantages in terms of performance, scalability, and efficiency. In this paper, construction, basic operation, and control strategies of MMC are discussed. In HVDC transmission systems, due to a large number of submodules in MMC, simulation time in electromagnetic transient (EMT) program is very large. Few researchers have addressed this problem. In this paper, improved model of MMC for simulation is presented. The simulation studies show that the proposed model exhibits high computational efficiency with good accuracy.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
