Differential Flatness Control Strategy Based on Y-source Two-stage Matrix Converter Under Unbalanced Voltage
When the grid voltage produces unbalanced conditions,the current and voltage will have large fluctuations,and it is difficult to regulate the power quality of Y-source two-stage matrix converter(YSTSMC)using the traditional PI controller.In order to improve the input control of the YSTSMC under unbalanced grid voltage,the differential flatness control(DFC)strategy is proposed,and the dynamic modulation coefficient is used to reduce the high harmonic fluctuations produced by active power under unbalanced conditions.The results of simulation show that DFC-based control strategy can improve the system response speed and output power quality.
Y-source two-stage matrix converterunbalanced voltagedifferential flatness controlinput power controloutput voltage compensation
万方数据
维普
