Research on dynamic characteristics of variable frequency drive hydraulic winch system
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摘要: 利用AMESim构建了闭环控制的变频驱动液压绞车系统的仿真模型，利用模型对液压绞车系统在不同负载突变情况下的动态特性进行了仿真分析。分析结果表明，变频驱动液压绞车系统可以实现对滚筒转速的精确控制，在空载和带载启动过程中，滚筒提升速度经短时波动后均可达到目标转速，且2种情况下滚筒实际位移与目标位移的最终偏差不超过0.1 m；在带载启动下，变频驱动液压绞车系统对于速度的阶跃及正弦变化具有良好的响应及跟踪特性，绞车的滚筒转速对负载的变化不敏感，且其带载速度稳定性较好。Abstract: A closed-loop control simulation model of variable frequency drive hydraulic winch system was built using AMESim, and the dynamic characteristics of the hydraulic winch system under different load mutations were simulated and analyzed using the model. The simulation results show that the variable frequency drive hydraulic winch system can realize accurate control of drum speed. In the process of no-load and on-load start-up, the lifting speed of the drum can reach the target speed after short-term fluctuation, and the final deviation between the actual displacement of the drum and the target displacement in two cases is not more than 0.1 m. Under the start-up with load, the variable frequency drive hydraulic winch system has good response and tracking characteristics to speed step and sinusoidal changes, and the drum speed of winch is insensitive to the change of load, and the speed stability with load is good.
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期刊类型引用(4)
1. 赵敏，杨波，李伟. 液压冲击抑制方法研究现状与展望. 中国农机化学报. 2023(09): 123-130 . 
百度学术
2. 赵汝和，柳润清，李小平. 基于PLC的机械液压启闭机动力节能数值仿真. 计算机仿真. 2022(01): 283-287 . 百度学术
3. 程玮玮，吴瑞. 大功率三电平PWM整流器无权值系数预测控制. 工矿自动化. 2021(01): 81-86 . 本站查看
4. 付亮. 无极绳绞车液压驱动系统设计研究. 江西化工. 2020(03): 273-274 . 百度学术
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