TY - GEN
T1 - Research on Control of Active Optimal Load Sensing Electro-Hydrostatic Actuator
AU - Zhihui, Li
AU - Yaoxing, Shang
AU - Zongxia, Jiao
AU - Shuai, Wu
AU - Qingxin, Pan
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/8
Y1 - 2018/8
N2 - Electro-Hydrostatic Actuator (EHA) is an actuator of the power by wire (PBW) actuation system applied to more/all electrical aircraft (MEA/AEA), which is helpful to improve the reliability and efficiency of EHA in aircraft. EHA is highly integrated local closed hydrostatic system without external pipeline, therefore when working at low speed and high load, the heat generated by the motor is difficult to be conducted and dissipated rapidly resulting in rapid temperature rise. Active optimal load sensing EHA (AOLS-EHA) is a typical double inputs and single output system, in which the displacement of the variable pump is adjusted by controlling the load pressure. In this paper, on the basis of the optimal control algorithm, the heat value of the motor is taken as optimal performance index, the motor speed is controlled actively and the displacement of variable pump is matched with load, causing the AOLS-EHA to control pump discharge pressure with optimal load sensing. A specific nonlinear state equation of AOLS-EHA is built in this paper. The result of simulation shows that AOLS-EHA is feasible and the heating of motor can be effectively reduced while dynamic performance of the system is not reduced significantly.
AB - Electro-Hydrostatic Actuator (EHA) is an actuator of the power by wire (PBW) actuation system applied to more/all electrical aircraft (MEA/AEA), which is helpful to improve the reliability and efficiency of EHA in aircraft. EHA is highly integrated local closed hydrostatic system without external pipeline, therefore when working at low speed and high load, the heat generated by the motor is difficult to be conducted and dissipated rapidly resulting in rapid temperature rise. Active optimal load sensing EHA (AOLS-EHA) is a typical double inputs and single output system, in which the displacement of the variable pump is adjusted by controlling the load pressure. In this paper, on the basis of the optimal control algorithm, the heat value of the motor is taken as optimal performance index, the motor speed is controlled actively and the displacement of variable pump is matched with load, causing the AOLS-EHA to control pump discharge pressure with optimal load sensing. A specific nonlinear state equation of AOLS-EHA is built in this paper. The result of simulation shows that AOLS-EHA is feasible and the heating of motor can be effectively reduced while dynamic performance of the system is not reduced significantly.
UR - https://www.scopus.com/pages/publications/85082440469
U2 - 10.1109/GNCC42960.2018.9019200
DO - 10.1109/GNCC42960.2018.9019200
M3 - 会议稿件
AN - SCOPUS:85082440469
T3 - 2018 IEEE CSAA Guidance, Navigation and Control Conference, CGNCC 2018
BT - 2018 IEEE CSAA Guidance, Navigation and Control Conference, CGNCC 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2018 IEEE CSAA Guidance, Navigation and Control Conference, CGNCC 2018
Y2 - 10 August 2018 through 12 August 2018
ER -