Modeling and Control of a Modular Multilevel Converter-Based HVDC System Under Unbalanced Grid Conditions

By Minyuan Guan, Zheng Xu. IEEE transactions on power electronics, 2012

528 citations recorded by the source corpus.

View Paper: https://www.semanticscholar.org/paper/7efce9791fb9cddebfcf6a1fed80198eaeb0e4fd

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1. S. Debnath
2. Yunjie Gu
3. Jiangchao Qin
4. T. Green
5. Ji-Woo Moon
6. Maryam Saeedifard
7. Behrooz Bahrani
8. Jin-Su Gwon

Citations in the corpus

• Operation, Control, and Applications of the Modular Multilevel Converter: A Review (2015, background): “control of the MMC primarily assume balanced system conditions [1]–[7], [9], [10], [12].”
• Reduced-Order Models for Representing Converters in Power System Studies (2018, background): “On the other hand, single-phase converters have much lower power rating than three-phase ones, and are of lower influence on power system stability [26]–[28].”
• Capacitor Voltage Balancing of a Five-Level ANPC Converter Using Phase-Shifted PWM (2015, background): “The most successful commercial application of MMC is in high-voltage direct-current (HVDC) transmissions [15]–[17].”
• Circulating Current Suppressing Strategy for MMC-HVDC Based on Nonideal Proportional Resonant Controllers Under Unbalanced Grid Conditions (2015, background): “However, the objective of the outer loop power controller to eliminate double line-frequency ripples in dc-side voltage is not achieved in MMC [24].”
• Model Predictive Control With a Reduced Number of Considered States in a Modular Multilevel Converter for HVDC System (2015, background): “For that reason, many studies have been carried out on an MMC as the most suitable structure for the VSC-HVDC system [4]–[12].”
• Isolated DC/DC Structure Based on Modular Multilevel Converter (2015, methodology): “The modular multilevel converter (MMC) [20] is normally used as an interface between the ac grid and an HVDC line, often in a setup where two MMCs are connected at their dc terminal over an HVDC transmission line [21], [22], as illustrated in Fig.”
• Modular Multilevel Converter With Series and Parallel Module Connectivity: Topology and Control (2015, methodology): “Further, the control strategy can implement methods to enhance robustness against typical fault or imbalance conditions in power systems, such as to suppress zero-sequence components without the need for a transformer [65], or to suppress circulating currents between different arms [66].”
• Design and Control of a Modular Multilevel DC/DC Converter for Regenerative Applications (2013, unknown): “MMCs are mainly used in HVDC systems because its modularity allows high voltage levels [25].”