独立计量流体电源系统的模式切换控制
Junxiang Chen1, Hongda Jiang1, Xiangdong Kong1
1State Key Laboratory of Crane Technology, Yanshan University, Qinhuangdao 066004, China.
ISA transactions
|January 19, 2025
概括
本研究引入了独立计量系统 (IMS) 的新型控制器,以提高模式切换期间的能源效率和稳定性. 控制器提高了跟踪精度,并抑制了液压系统的不稳定性.
科学领域:
- 水力系统工程 水力系统工程
- 控制理论 控制理论
- 机器人技术 机器人技术 机器人技术
背景情况:
- 独立计量系统 (IMS) 将计入孔和计出孔分离,以提高液压系统的能源效率.
- IMS中的模式切换提高了效率,但在跟踪准确性和系统稳定性方面存在挑战.
- 现有的控制方法在模式转换期间努力确保稳定性和精确的轨迹跟踪.
研究的目的:
- 为IMS提出一种新的模式切换控制器,以解决稳定性和跟踪准确性问题.
- 用IMS提高液压系统的能源效率和运行可靠性.
- 为液压系统中的动态模式转换制定强大的控制策略.
主要方法:
- 应用K-过器理论来准确估计无法测量的系统状态.
- 模糊逻辑系统 (FLS) 的集成,以管理未建模的动态和外部干扰.
- 利用平均停留时间 (ADT) 稳定性分析来设计闭环稳定性的切换规则.
- 实施规定的性能控制 (PPC) 以保证在特定范围内实现状态错误的趋同.
- 采用动态表面控制 (DSC) 来减轻与传统后退方法相关的计算复杂性.
主要成果:
- 拟议的控制器有效地确保了IMS模式切换系统中的轨迹跟踪精度.
- 通常由液压系统的模式切换引起的不稳定性问题被显著抑制.
- K-过器准确地估计了无法测量的状态,提高了系统的可观测性.
- FLS成功地弥补了模型的不确定性和干扰.
- ADT,PPC和DSC共同确保了系统的稳定性和性能.
结论:
- 开发的模式切换控制器证明了IMS的高可行性和有效性.
- 控制器成功地平衡了能源效率的提高与强大的稳定性和精确的跟踪.
- 在迷你挖掘机上的实验验证证证了控制器的实际适用性和性能优势.
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