数字控制四象限电静电驱动器与分离的液压电机的特征性调查
Xiaoming Chen1,2, Yuchuan Zhu1, Jie Ling1
1College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China.
The Review of scientific instruments
|September 9, 2024
概括
这项研究介绍了一种新型的四象限电液静电执行器 (EHA),用于更电气的飞机,改善流量控制和能源效率. 新设计增强了位置准确性和动态性,特别是在不同的外部力下.
科学领域:
- 航空航天工程 航空航天工程
- 液压系统 水力系统
- 控制系统 控制系统
背景情况:
- 非对称的电静电驱动器 (EHA) 对更多电气飞机 (MEA) 至关重要,但受到流动不对称的影响,影响了控制精度和动态.
- 现有的EHA面临着在所有运营象限实现精确位置控制和能源效率方面的挑战.
研究的目的:
- 提出和验证一个数字控制的,四象限EHA与一个分离的液压电机 (SHM) 和一个新的四象限划分原则.
- 加强所有象限的流量控制,并改善EHA的辅助象限的能源节约.
主要方法:
- 使用MATLAB/Simulink.开发一个理论模型,用于拟议的EHA.
- 开发的理论模型的实验验证.
- 拟议的EHA与没有SHM的传统EHA的比较.
主要成果:
- 拟议的EHA证明了在增加的外部力下,在电阻和辅助象限中,圆柱的运动速度控制得到了改进.
- 与没有SHM的EHA相比,观察到能量消耗 (104%在第二象限,36.7%在第四象限) 和运动速度 (12.9%在第二象限,25.6%在第四象限) 的显著减少.
- 新的四象限划分方法有效地纠正象限误判,特别是在较低的外力下.
结论:
- 拟议的四象限EHA与SHM为更多电气飞机应用提供了卓越的流量控制,增强的位置精度和更好的能源效率.
- 这种新型的划分原则解决了现有方法的局限性,确保在各种外部力条件下可靠运行.
- 这一进步有助于为未来的飞机开发更强大,更有效的分布式液压驱动系统.
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