Journal of Power Electronics

The Korean Institute of Power Electronics (전력전자학회)
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A Hydraulic-Oil Pump System using SR Drive with a Direct Torque Control Scheme

  • Lee, Dong-Hee (Dept. of Electrical and Mechatronics Engineering, Kyungsung University) ;
  • Kim, Tae-Hyoung (Dept. of Electrical and Mechatronics Engineering, Kyungsung University) ;
  • Ahn, Jin-Woo (Dept. of Electrical and Mechatronics Engineering, Kyungsung University)
  • Published : 2009.05.20
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Abstract

The hydraulic-oil pump is widely used for building machinery, brake systems of vehicles and automatic control systems due to its high dynamic force and smooth linear force control performance. This paper presents a novel direct instantaneous pressure control of the hydraulic pump system with SRM drive. The proposed hydraulic pump system embeds the pressure controller and direct instantaneous torque controller. Due to the proportional relationship between pump pressure and torque, pressure can be controlled by the motor torque directly. The proposed direct torque controller can reduce inherent torque ripple of SRM, and develop a smooth torque, which can increase the stability of the hydraulic pump. The proposed hydraulic pump system has also fast step response and load response. The proposed hydraulic pump system is verified by computer simulation and experimental results.

Keywords

References

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