Journal of Drive and Control (드라이브 ㆍ 컨트롤)

The Korean Society for Fluid Power and Construction Equipment (유공압건설기계학회)
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Modeling and Controller Design of an Electro-Hydrostatic Actuator

정유압구동기(EHA)의 모델링과 제어기 설계

  • Huh, J.Y. (School of Mechatronics Engineering, Korea University of Technology and Education) ;
  • Kim, H.H. (Department of Mechatronics Engineering, Graduate School, Pukyung National University) ;
  • Lee, I.Y. (Department of Mechanical & Automotive Engineering, Pukyung National University)
  • Received : 2015.01.28
  • Accepted : 2015.04.20
  • Published : 2015.06.01
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Abstract

Recently, the Electro-Hydrostatic Actuator(EHA) has been developed as a result of research on energy saving. EHA is usually composed of a direct driven pump from an electric motor and is available to control cylinder displacement or velocity with high efficiency. In addition, it has the advantage of compactness, minimum leakage and availability of decentralized control. In this study, an EHA system was designed to decrease the path tracking error and manufactured for test. The linearization method provided in AMESim software was used to derive the model of EHA system. The derived model was applied to design the PI-D controller to effectively overcome the disturbance. The effectiveness of this controller was verified by further testing.

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References

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