设计了一种新型状态反强大的滑动模式控制器,用于液压轮控制系统
Fang Dao1, Yidong Zou2, Jing Qian1
1Kunming University of Science and Technology, School of Metallurgical and Energy Engineering, Kunming, 650000, PR China.
Scientific reports
|November 23, 2024
概括
一个新的强大的滑动模式控制器增强了面临干扰的液压轮控制系统. 这种先进的控制方法在不确定的条件下提高了系统的稳定性和性能.
科学领域:
- 控制工程 控制工程 控制工程
- 流体动力学 流体动力学
- 电力系统 电力系统
背景情况:
- 水力轮机控制系统 (HTGS) 对于电网稳定性至关重要,但容易受到干扰.
- 复杂的管道动力学和外部负载变化带来了重大的控制挑战.
- 现有的控制器在不确定性下努力保持最佳性能.
研究的目的:
- 为HTGS开发一种新的状态反强大的滑动模式控制器 (SFRSMC).
- 提高HTGS对干扰和不确定性的稳定性和性能.
- 为了最佳的控制器设计,使用混合方法.
主要方法:
- 开发了一个HTGS动态的状态空间模型.
- 设计的SFRSMC使用滑动模式等效控制和干扰观察器.
- 使用混合线性矩阵不等式 (LMI) 进行滑动矩阵确定.
- 通过时间域模拟验证了控制器.
主要成果:
- 拟议的SFRSMC有效地减轻了外部负载干扰和控制信号的不确定性.
- 混合方法成功地平衡了稳健性和最佳性.
- 模拟显示,在各种操作场景中,控制性能得到了提高.
- 干扰观察者准确地估计和补偿未知的干扰.
结论:
- 新的SFRSMC为HTGS控制提供了强大而有效的解决方案.
- 混合LMI方法提供了一种系统的方式来设计高性能控制器.
- 拟议的方法提高了液压发电的稳定性和可靠性.
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