Investigation of Capacitor Voltage Regulation in Modular Multilevel Converters with Staircase Modulation

다국어 초록 (Multilingual Abstract)

This paper presents a detailed theoretical analysis and performance assessment of the capacitor voltage balancing strategies for staircase modulated modular multilevel converters (MMC) in terms of the algorithm structures, voltage balancing effect, and switching frequency. A constant-frequency redundancy selection (CFRS) method with minimal switching loss is proposed and the function realization of specific modules of the algorithm is given. This method is simple and efficient in both switching frequency and regulation capacity. Laboratory results show very good agreement with the theoretical analysis and numerical simulations.

목차 (Table of Contents)

• Abstract
• Ⅰ. INTRODUCTION
• Ⅱ. PRINCIPLE AND ANALYSIS OF THE STAIRCASE MODULATION IN MMC
• Ⅲ. CAPACITOR VOLTAGE REGULATION SCHEMES
• Ⅳ. SIMULATION RESULTS
• Ⅴ. EXPERIMENTAL RESULTS
• Ⅵ. CONCLUSIONS
• REFERENCES

참고문헌 (Reference)

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