能量再生型电液混合驱动系统参数特性研究  

Parametric Characterisation of Energy Regenerative Electro-hydraulic Hybrid Drive System

作　　者：杜锐 刘志奇[1] 权龙[2] DU Rui;LIU Zhiqi;QUAN Long(College of Mechanical Engineering,Taiyuan University of Science and Technology,Taiyuan,Shanxi 030024;College of Mechanical Engineering,Taiyuan University of Technology,Taiyuan,Shanxi 030024)

机构地区：[1]太原科技大学机械工程学院,山西太原030024 [2]太原理工大学机械工程学院,山西太原030024

出　　处：《液压与气动》2024年第7期63-71,共9页Chinese Hydraulics & Pneumatics

摘　　要：重型装备回转运动负载惯量大、周期性频繁启停、能耗巨大,制动能一般都以热能形式耗散,能量再生利用一直没有很好的解决方案。提出了一种新型能量再生型电液混合驱动系统并定义了系统3种工作模式,以重型装备中可逆轧机为例,研究了所提系统的特性。以电动机能耗及输出峰值功率作为评价指标,研究关键元件参数对系统驱动特性的影响规律,通过AMESim建立了纯电动驱动与电液混合驱动仿真模型。结果表明:液压泵/马达排量对制动时间、电动机峰值功率及电动机能耗影响最大;最优参数下,所提电液混合驱动系统较原电动机驱动可降低电动机峰值功率45.75%,能耗可降低48.33%,启动时间缩短44.54%,制动时间缩短1.21%。Heavy equipment rotary motion has huge load inertia,cyclical frequent start and stop and energy consumption,braking energy is generally dissipated in the form of heat,energy regeneration has not been a good solution.This paper proposes a new type of energy-regenerative electro-hydraulic hybrid drive system and defines three working modes of the system.The characteristics of the proposed system are investigated by taking a reversible rolling mill in heavy equipment as an example.Taking the motor energy consumption and peak output power as evaluation indexes,the influence of key component parameters on the system drive characteristics is studied,and the simulation models of pure electric drive and electro-hydraulic hybrid drive are established by AMESim.The results show that the hydraulic pump/motor displacement has the greatest influence on braking time,peak motor power and motor energy consumption,and under the optimal parameters,the proposed electro-hydraulic hybrid drive system can reduce the peak motor power by 45.75%,energy consumption by 48.33%,start-up time by 4454%and braking time is shortened by 1.21%,compared with the original electric motor drive.

关 键 词：电液混合动力 能量管理策略 重型装备 能效分析 

分 类 号：TH137[机械工程—机械制造及自动化] TF32[冶金工程—冶金机械及自动化] TM762[电气工程—电力系统及自动化]