An Effective Carrier-Based Modulation Strategy to Reduce the Switching Losses for Indirect Matrix Converters

作者：Quoc Hoan Tran; Lee Hong Hee^*

来源：Journal of Power Electronics, 2015, 15(3): 702-711.

DOI：10.6113/JPE.2015.15.3.702

• AC/AC converter
• Carrier-based modulation method
• Indirect Matrix Converter (IMC)
• Switching losses

In this paper, an effective carrier-based modulation (CBM) strategy to reduce the switching losses for indirect matrix converters (IMCs) is presented. The discontinuous pulse width modulation method is applied to decrease the switching numbers in one carrier cycle, and an optimum offset voltage is selected to avoid commutations of the high output phase currents. By decreasing the switching numbers along with avoiding commutation of the high currents, the proposed CBM strategy significantly reduces the switching losses in IMCs. In addition, the proposed CBM strategy is independent of load conditions, such as load power and power factor, and it has good performance in terms of the input/output waveforms. Simulation and experimental results are provided to verify the effectiveness of the proposed CBM strategy.

• 出版日期2015-5