Speed control of PMSM Fed by bridgeless PFC isolated Cuk converter using LCL filter

Abstract

In this paper, a LCL filtered power factor corrected (PFC) converter to feed permanent magnet synchronous machines (PMSM) having field-oriented control (FOC) method has been proposed. In order to compensate the total harmonic distortion (THD) and poor power factor (PF) problem while achieving the high efficiency and reducing the switching losses of the converter and the voltage source inverter (VSI), the proposed system has been designed as LCL filtered bridgeless single-stage PFC isolated cuk converter for low power applications. Value of the output inductor provides discontinuous conduction mode (DCM) operation for reducing the conduction losses on switches of the converter. On the other hand, source filter was designed as LCL type to ensure power quality improvement. Results of this paper through the simulation have demonstrated that the proposed system has a capability to drive low power applications within the boundaries of international power quality standards and speed of the PMSM was controlled as desired.