PERFORMANCE EVALUATION OF MODULAR MULTILEVEL CONVERTER ARCHITECTURES FOR HIGH-VOLTAGE DIRECT CURRENT APPLICATIONS

Abstract

The increasing demand for efficient long-distance High Voltage Direct Current (HVDC)  integrated with renewable energy resources is universally has been intensified around the globe. The modular Multilevel Converters (MMC) is its component due to its modular structure design, high efficiency, higher dynamic performance and low harmonic distortion. This paper offers a design and performance assessment of MMC architectures for HVDC applications, highlighting its real-time authentication through Hardware-in-the-Loop (HIL) environments. The study delivers a thorough investigation of MMC modulation strategies, and multilevel output synthesis. Using real-time simulation platforms, the simulation results validate the converters’ improved excellent power quality across a wide operating range. Overall, the results confirm that simulation and HIL supported development expressively fortifies the dependability, performance, and practical deployment of MMCs in modern HVDC transmission lines.