Impedance-based stability criterion is effective for analyzing the oscillation phenomenon in
modular multilevel converter-based high-voltage DC (MMC-HVDC) transmission system, and …

Impedance models of modular multilevel converter (MMC) are required to analyze the
stability of the MMC high-voltage direct current (HVDC) system. In practical engineering, the …

The sequence impedance of modular multilevel converters (MMC) is the premise to analyze
the stability of MMC-based high voltage direct current (HVDC) system. However, few papers …

This article proposes an accurate dc-side impedance modeling method of modular multilevel
converter (MMC) and a control strategy for improving the stability of the dc system in MMC-…

Modular multilevel converter (MMC) has been widely used in high-voltage direct current (HVDC)
transmission system due to its advantages of modularity, low switching frequency and …

A modular multilevel converter with a passive circulating current filter (MMC-PCCF) is a
novel topology that can inherently suppress circulating currents and has a lower modulation …

Oscillationphenomenon has been reported in modular multilevel converter-based high-voltage
DC (MMC-HVDC) transmission system. Many methods have been proposed to suppress …

The broadband impedance of converters is an essential feature for the stability analysis of
new energy sources. However, obtaining the impedance for photovoltaic (PV) converters with …

Virtual synchronous generators (VSG), as one of the most widely used inverter control
schemes, has been studied in the perspective of impedance modeling in recent years. In this …

This paper presents an AC impedance modeling method of modular multilevel converter (MMC)
considering different control modes, and its accuracy is verified by simulation. Then the …