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| Modeling and simulation of synchronous speed control system about electric-hydraulic proportional motor |
| YANG Qian-ming1， KONG Ling-qi1， LI Jian1， WANG Shi-gang2， GUO Jian-wei2 |
1.College of Mechanical and Electronic Engineering， Shandong University of Science and Technology， Qingdao 266590， China;
2.Qingdao Huahai Environmental Protection Industry Company， Qingdao 266400， China |
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Abstract Taking the driving control system of oil boom uncoil and rewound for the ship carrying oil spill recovery machine as the research object, aiming at the problem of synchronous control of dual-motor speed synchronization, the electric-hydraulic proportional valve controlled motor speed synchronous scheme of master-slave based on PLC was proposed. The mathematical model of speed synchronous control system was established and the MATLAB/Simulink software was also used to analyze the stability, the output speed and the speed synchronization error. The PID unit had been introduced into this system for improving the stability and reducing the speed synchronization error. The simulation results showed that the stable performance was improved significantly, the motor output speed stability and the synchronization performance had satisfied design effect after the PID unit being introduced into the system. The synchronous control strategy of master-slave based on PLC is feasible when the demand of synchronous precision is not high.
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Received: 12 September 2014
Published: 28 August 2015
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电液比例马达速度同步控制系统建模与仿真
以船携式溢油回收机围油栏布放驱动控制系统为研究对象，针对双马达速度同步控制问题，提出以可编程逻辑控制器（programmable logic controller，PLC）为控制核心的电液比例阀控马达主从速度同步控制方案.建立其速度同步控制系统数学模型，利用MATLAB/Simulink软件进行稳定性、输出速度与速度同步误差分析；为提高系统稳定性同时减小速度同步误差，引入PID控制环节.仿真结果表明，控制系统引入PID整定环节后，其稳态性能明显提高，马达输出速度稳定性与同步性均有满意的设计效果.在同步精度要求不高的情况下，基于PLC的主从同步控制策略是切实可行的.
关键词：
溢油回收机,
马达速度同步,
电液比例,
Simulink,
PID
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