TY - GEN
T1 - An electro-hydraulic control system with energy recycling
AU - Tao, Taoxinjun
AU - Wang, Junzheng
AU - Zhao, Jiangbo
AU - Hu, Xiaojie
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2016/1/13
Y1 - 2016/1/13
N2 - When traditional electro-hydraulic proportional valve or servo valve controlled systems are used to drive unbalanced external load, the hydraulic valve itself exists throttling losses. At the same time, the excess kinetic or potential energy of external load is consumed in the form of heat. In order to reduce energy loss and recycle external load energy, this paper puts forward a kind of electro-hydraulic control equipment which can recycle energy. It consists of directional valve, hydraulic motor, generator, power transformation device. In details, the directional valve is used to control the fluid direction of hydraulic actuator, hydraulic motor is connected to the fluid return channel of the directional valve. A generator is connected to hydraulic motor so that the back pressure of the actuator can be controlled by adjusting the torque applied on the hydraulic motor. In this way, the trajectory of the actuator is controlled. The mechanical energy applied on the hydraulic motor can be converted to electricity via the power conversion device, and then transmitted back to the grid. The simulation and experiment results prove that the proposed scheme is feasible.
AB - When traditional electro-hydraulic proportional valve or servo valve controlled systems are used to drive unbalanced external load, the hydraulic valve itself exists throttling losses. At the same time, the excess kinetic or potential energy of external load is consumed in the form of heat. In order to reduce energy loss and recycle external load energy, this paper puts forward a kind of electro-hydraulic control equipment which can recycle energy. It consists of directional valve, hydraulic motor, generator, power transformation device. In details, the directional valve is used to control the fluid direction of hydraulic actuator, hydraulic motor is connected to the fluid return channel of the directional valve. A generator is connected to hydraulic motor so that the back pressure of the actuator can be controlled by adjusting the torque applied on the hydraulic motor. In this way, the trajectory of the actuator is controlled. The mechanical energy applied on the hydraulic motor can be converted to electricity via the power conversion device, and then transmitted back to the grid. The simulation and experiment results prove that the proposed scheme is feasible.
KW - Back pressure control
KW - Elecrto-hydraulic valve controlled system
KW - Energy recycling
KW - Unbalanced load
UR - http://www.scopus.com/inward/record.url?scp=84966577806&partnerID=8YFLogxK
U2 - 10.1109/CAC.2015.7382627
DO - 10.1109/CAC.2015.7382627
M3 - Conference contribution
AN - SCOPUS:84966577806
T3 - Proceedings - 2015 Chinese Automation Congress, CAC 2015
SP - 909
EP - 914
BT - Proceedings - 2015 Chinese Automation Congress, CAC 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - Chinese Automation Congress, CAC 2015
Y2 - 27 November 2015 through 29 November 2015
ER -