20 citations · 60 across the 27 of their papers we have counts for
7 papers · 2 filters
Harmonic State Space Modeling of a Three-Phase Modular Multilevel Converter
Jing Lyu, Marta Molinas, Xu Cai
This paper presents the harmonic state space (HSS) modeling of a three-phase modular multilevel converter (MMC). MMC is a converter system with a typical multi-frequency response d…
A simple method for shifting local dq impedance models to a global reference frame for stability analysis
Atle Rygg, Marta Molinas, Eneko Unamuno +2
Impedance-based stability analysis in the dq-domain is a widely applied method for power electronic dominated systems. An inconvenient property with this method is that impedance m…
Impedance Analysis of Modular Multilevel Converter Based on Harmonic State-Space Modeling Method
Jing Lyu, Qiang Chen, Xu Cai +1
The small-signal impedance modeling of modular multilevel converter (MMC) is the key for analyzing resonance and stability of MMC-based ac power electronics systems. MMC is a conve…
Non-parametric Impedance based Stability and Controller Bandwidth Extraction from Impedance Measurements of HVDC-connected Wind Farms
Mohammad Amin, Marta Molinas
Impedance measurements have been widely used with the Nyquist plot to estimate the stability of interconnected power systems. Being a black-box method for equivalent and aggregated…
Model Predictive Control of Voltage Source Converter in a HVDC System
Mohammad Amin, Marta Molinas
Model Predictive Control (MPC) method is a class of advanced control techniques most widely applied in industry. The major advantages of the MPC are its straightforward procedure w…
Accurate and reduced SISO Sequence Impedance Models of Grid-tied Voltage Source Converter for Small Signal Stability Analysis
Chen Zhang, Xu Cai, Atle Rygg +1
Impedance models are widely used in assessing small signal stability of grid-tied voltage source converter (VSC) systems. Recent research has proven that impedance models of grid-t…
Augmented Sequence Impedance Networks of Grid-tied Voltage Source Converter for Stability Analysis
Chen Zhang, Xu Cai, Atle Rygg +1
Impedance-based stability analysis is appealing in the case of Single-Input Single-Output (SISO) systems. However, in the case of grid-tied voltage source converter (VSC) systems,…