基于能量回收的新型电伺服作动器及其动态能耗分析  

A new electric servo actuator based on energy recovery and its dynamic energy consumption analysis

作　　者：刘谦 张祝新 赵丁选 王立新 王亚非 LIU Qian;ZHANG Zhu-xin;ZHAO Ding-xuan;WANG Li-xin;WANG Ya-fei(School of Mechanical Engineering,Yanshan University,Qinhuangdao 066000,China;School of Vehicle and Energy,Yanshan University,Qinhuangdao 066000,China;Systems Engineering Research Institute,China State Shipbuilding Corporation Limited,Beijing 100094,China)

机构地区：[1]燕山大学机械工程学院,河北秦皇岛066000 [2]燕山大学车辆与能源学院,河北秦皇岛066000 [3]中国船舶集团有限公司系统工程研究院,北京100094

出　　处：《吉林大学学报（工学版）》2024年第5期1196-1204,共9页Journal of Jilin University:Engineering and Technology Edition

基　　金：国家重点研发计划项目(2016YFC0802902);河北省重点研发计划项目(20353501D,22357601D)。

摘　　要：针对现有电伺服作动器在负载回落阶段负载势能被浪费的问题,提出了基于能量回收的新型电伺服作动器的实现方案。该方案通过与传动系统并联的蓄能器来回收负载回落时耗散的势能,在负载举升时将其用于提供辅助推力。结合功率键合图理论引入了一种复杂能域下的机械系统动态能耗分析方法,建立了新型电伺服作动器的动态能耗模型,并进行了对比仿真实验。结果表明,所设计的电伺服作动器使得系统响应时间缩短了约36.9%,所需的电机启动转矩降低了约43.3%;在举升负载时的能耗降低了约31%,在负载回落时能够回收36%的势能;在工作过程中滚珠螺旋副的承载大大降低,有助于减少摩擦热、延长丝杠的使用寿命。Aiming at the problem that the load potential energy is wasted in the load falling stage of the existing electric servo actuator,this paper proposes a new electric servo actuator implementation scheme based on energy recovery.The project uses an accumulator parallel to the transmission system to recover the potential energy dissipated during the load falling stage and provide extra thrust during the load lifting stage.Combined with the theory of power bond graph,a dynamic energy consumption analysis method of mechanical system in complex energy domain is introduced.The dynamic energy consumption model is established,and the comparison simulation test is carried out.The simulation results show that the response time can be reduced by 36.9%,and the motor starting torque can be reduced by 43.3%.When lifting the load,the energy consumption is reduced by about 31%,and 36%of potential energy can be recovered.In the working process,the bearing capacity of the ball screw pair is significantly reduced,which is helpful to reduce friction heat and prolong the service life of the screw.

关 键 词：机械电子工程 电伺服作动器 能量回收 蓄能器 功率键合图 动态能耗分析 

分 类 号：TP242.2[自动化与计算机技术—检测技术与自动化装置]