一种深海作业级ROV用电控负载敏感液压系统

An Electronically Controlled Load-sensitive Hydraulic System for Deep-sea Work Class Remotely Operated Vehicle

针对传统负载敏感液压系统因负载油路长产生沿程压力损失而导致控制偏差的问题,设计了一种电控负载敏感液压系统;为兼容深海作业级遥控潜水器(ROV)推进系统和工具系统各自的特殊需求,该系统分别设计了电控负载敏感模式和电控恒压模式。对所设计的液压系统进行建模,仿真结果表明该系统响应快、控制精度高,系统输出流量从0增至目标值仅需0.17 s,在负载波动±30%的情况下系统输出流量的波动值仅1.51%,可以满足ROV对液压系统控制多样性的要求。

It presented an electronically controlled load-sensitive hydraulic system to solve the control deviation problem caused by pressure loss of traditional load-sensitive hydraulic system due to long-distance transmission of load-sensitive line.At the same time,in order to be compatible with respective special needs of remotely operated vehicle’s propulsion system and tool system,the system is designed with an electronically controlled load-sensitive mode and an electronically controlled constant pressure mode.The hydraulic system is modeled and simulated by hydraulic simulation software to verify its feasibility,and the results show that the system has fast response and high control accuracy,and can meet the requirements of remotely operated vehicle for the diversity of hydraulic system control.It takes only 0.17 s for the system output flowing from 0 to the target value.In the case of load fluctuations of±30%,the fluctuation value of the system output flow is only 1.51%.