Dynamic performance and temperature rising characteristic of a high-speed on/off valve based on pre-excitation control algorithm

作     者：Qi ZHONG Enguang XU Geng XIE Xiele WANG Yanbiao LI Qi ZHONG;Enguang XU;Geng XIE;Xiele WANG;Yanbiao LI

作者机构：College of Mechanical EngineeringZhejiang University of TechnologyHangzhou 310023China Key Laboratory of Special Purpose Equipment and Advanced Processing TechnologyMinistry of Education and Zhejiang ProvinceZhejiang University of TechnologyHangzhou 310023China 

出 版 物：《Chinese Journal of Aeronautics》 (中国航空学报（英文版）)

年 卷 期：2023年第36卷第10期

页      面：445-458页

核心收录：

学科分类：08[工学] 082504[工学-人机与环境工程] 0825[工学-航空宇航科学与技术] 

基　　金：the National Natural Science Foundation of China(No.52005441) Young Elite Scientist Sponsorship Program by CAST(No.2022QNRC001) Natural Science Foundation of Zhejiang Province(No.LQ21E050017) “Pioneer”and“Leading Goose”R&D Program of Zhejiang Province(Nos.2022C01122 and 2022C01132) Postdoctoral Science Foundation(Nos.2021M692777 and 2021T140594) State Key Laboratory of Mechanical System and Vibration(No.MSV202316) 

主　　题：High speed on/off valve Dynamic performance Pre-excitation Temperature rising Flow characteristic 

摘      要：High speed on/off valve(HSV)is an essential component in aerospace digital hydraulic systems(ADHS).Dynamic performance and temperature rising characteristic are two important features,which determine the performance of HSV,and affect the response speed and reliability of *** the driving voltage is an effective method for improving the dynamic performance of ***,continuous high voltage excitation will lead to more wasted energy,higher temperature rising and lower *** solve this problem,a pre-excitation control algorithm(PECA)is proposed in this paper based on the theoretical model of the influence of electrical parameters on dynamic performance and temperature rising *** PECA,an appropriate initial coil current is generated by pre-excitation instead of increasing driving voltage,which significantly shortens the switching delay ***,based on real-time current online calculation and feedback mechanism,the adaptive switching of five equivalent voltages is ***,the coil current can be rapidly kept at the expected state without consuming more energy and generating more *** indicate that compared with conventional PWM control algorithm,the PECA can improve dynamic performance of HSV,shorten the total switching time by 71.5%,and increase the maximum operation ***,the linear area of flow characteristic is expended by 80.0%,the adjusting time of HSV-controlled system is reduced by 23%,while shortening steady error by 46.7%.Moreover,the temperature rising characteristics of HSV are better,the maximum operation temperature is reduced by 68.6%,and the time to reach the steady state temperature is shortened by 20%.From the results,it can be concluded that the PECA is not only an effective and practical control algorithm for improving the performance of HSVs and HSV-controlled systems while reducing the heat generation and decreasing the temperature rising of HSV,but also can be a potentia