Ui-Min Choi and Kyo Beum Lee, “Space vector modulation strategy for neutral-point voltage balancing in three-level inverter systems,” IET Power Electronics, vol. 6, no. 7, pp. 1390–1398, Aug. 2013. -SCIE > Paper

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International Journals Ui-Min Choi and Kyo Beum Lee, “Space vector modulation strategy for neutral-point voltage balancing in three-level inverter systems,” IET Power Electronics, vol. 6, no. 7, pp. 1390–1398, Aug. 2013. -SCIE

2013

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This study proposes a space vector modulation (SVM) strategy to balance the neutral-point voltage of three-level inverter systems.

The proposed method is implemented by combining conventional symmetric SVM with nearest three-vector (NTV) modulation. The

conventional SVM is converted to NTV modulation by properly adding or subtracting a minimum gate-on time. In addition, using

this method, the switching frequency is reduced and a decrease of switching loss would be yielded. The neutral-point voltage is

balanced by the proposed SVM strategy without additional hardware or complex calculations. Simulation and experimental results

are shown to verify the validity and feasibility of the proposed SVM strategy. 

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