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Capacitor Voltage Ripple Reduction with State Trajectory Analysis for Modular Multilevel Converter
Year: 2017 | Author: Yadong | Paper: D4.7
Fig.1. State-of-the-art waveforms
To gain a better understanding of the nature of circulating energy and the means of reducing it, the method of state plane analysis is employed to offer visual support. In addition, the design trade-off between full bridge MMC and half bridge MMC is presented and a novel control strategy for hybrid MMC is proposed. Finally, the work is supported with a scaled down hardware demonstration shown in Fig.3.
Fig. 1. and 2 show the benefit of the proposed method versus the state-of-the-art to reduce the capacitors ripples.
Fig.2. Proposed control method
Fig. 3. Experimental Setup
