Generic Model of MMC-VSC-HVDC for Interaction Study With AC Power System

This paper presents a generic rms model of voltage source converter (VSC) in modular multilevel converter (MMC) topology for high-voltage direct current (HVDC) application. The generic rms model is suitable for stability analysis of a MMC-VSC-HVDC interconnected to ac power system. Based on the rms model, a linearized model for analytical model analysis is also developed and described. The parameters of the generic rms model are identified via an established averaged EMT model. The dynamic performance of the proposed generic model is tested in both time and frequency domain analysis using a typical high-voltage transmission system.