Study on Matrix Converter Topology Applied to Accelerator Power Supply

A magnetic coupling matrix rectifier topology being suitable for accelerator power supply was presented. And the basic rectifier principle of the matrix topology was verified on the accelerator power supply. Based on space vector modulation (SVM) and feedback control, a control strategy was studied, which can well reduce line-side harmonic current, improve the line-side power factor, and guarantee the instruction current to be properly tracked by the output current. The results of simulation experiment and prototype test show that the matrix topology and its control strategy can realize DC output and achieve intended requirements. Therefore, as a kind of feasible choice of accelerator power converter topology, the matrix rectifier has a well research prospect.