A Simple Method for Sinusoidal Input Currents of Matrix Converter Under Unbalanced Input Voltages

作者：Lei, Jiaxing^*; Zhou, Bo; Bian, Jinliang; Qin, Xianhui; Wei, Jiadan

来源：IEEE Transactions on Power Electronics, 2016, 31(1): 21-25.

DOI：10.1109/TPEL.2015.2456938

• Matrix converter (MC)
• notch filter
• sinusoidal input currents
• unbalanced input voltages

When matrix converter works under unbalanced input voltages, sinusoidal input currents could be obtained if the input power factor angle in conventional control strategy is modified based on the positive and negative sequence components of input voltages. Some existing literature realized this goal by using sequence component separation, which was usually complicated and/or storage-consuming. Instead, a simple realization method is proposed by this letter to obtain sinusoidal input currents, which constructs the expected input power factor angle by filtering the square of input voltage vector with a notch filter. The proposed method is easy to implement, since no sequence extraction algorithm is required. Experimental results demonstrate that compared with the existing realization methods, the proposed method reduces the computation time and storage space with identical performance of improving input currents quality.

• 出版日期2016-1
• 单位南京航空航天大学