Mobile QR Code QR CODE : The Korean Institute of Power Electronics
Title Low frequency Multi-level Switching Strategy based on Phase-Shift Control
Authors Sung-Geun Song ; Sang-Hun Lee ; Hae-Kon Nam ; Sung-Jun Park ; Man-Hyung Lee
Page pp.520-528
ISSN 1229-2214
Keywords H-Bridge Inverter; THD(Total Harmonic Distortion); phase-shift switching method
Abstract This paper proposes an SRM drive system to improve the drive efficiency of the hydraulic system. From the maximum hydraulic pressure and flow rate required by the hydraulic system, a proper SRM is designed and tested. The proposed SRM drive system controls oil pressure of the hydraulic system as well as motor speed. A 2.2[㎾], 12/8-pole SR motor and digital controller based DSP are designed and tested for hydraulic pump system. The test results show that the system has some good features such as high efficiency and rapid response characteristics.