| 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 |
| 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. |