Hybrid converter with ac side cascaded H‐bridge cells against H‐bridge alternative arm modular multilevel converter: steady‐state and dynamic performance

This study explorers the operating principles of the hybrid converter with ac side cascaded H‐bridge cells and the H‐bridge alternative arm modular multilevel converter, where the main objective is to compare their steady‐state and transient performance. This comparison focuses on steady‐state aspects such as active and reactive power control and semi‐conductor losses and the transient performance of these converters during ac and dc network faults. To facilitate this comparison, detailed switch models of both high‐voltage direct current (HVDC) converters are developed and simulated in Matlab‐Simulink. The major outcomes are discussed and strengths and weakness associated with each converter are highlighted.