Higher Order Sliding Mode Based Decentralised Strategies For Complex Interconnected Systems.

为了满足对系统性能日益提高的要求，实际工程系统现在经常被建模为复杂的互连系统。由于非线性、子系统之间的相互联系、时滞和模型与现实世界之间的不确定性的存在，这类系统的研究既具有挑战性又具有冒险性。本提案中描述的研究旨在开发一种新颖的设计方法，并为使用HOSM技术的复杂互联系统的分散观测器和控制器设计问题提供实用但严格的解决方案。该项目将加强两个领先的滑模研究团队之间的合作，为这一新的研究领域创造一个框架。为了避免子系统间信息传输中的数据包问题，分散策略将是本研究的重点。本文提出了一种涉及人工互连的新方法，以减少分散策略下子系统间相互作用所引起的保守性。一个具体的重点将是消除/抑制不希望的抖振，以提高闭环系统的性能。研究者在使用经典滑模控制的互联系统的研究中投入了超过10年的时间，并有很强的研究记录。项目合作方在HOSM控制特别是颤振抑制方面取得了优异的效果，在HOSM领域处于国际领先地位。两个研究小组的专业知识相当丰富，而且互为补充。投影仪合作伙伴提供的实验设备对于测试所获得的结果至关重要。所有这些因素都是保证项目成功的重要因素。由于本提案的重点是在保留HOSM技术和分散策略的优势的同时消除抖振，因此本研究将在实际系统中实现运动机械部件时带来高鲁棒性的不确定性，易于实现，高可靠性和延长寿命的优势。该研究对提高经济效益具有很大的潜力。

In order to satisfy the increasingly enhanced requirements for system performance, practical engineering systems are now frequently modelled as complex interconnected systems. The study of such classes of systems is both challenging and adventurous due to the presence of nonlinearity, interconnections between subsystems, time delay and uncertainty between such models and the real world. The research described in this proposal aims to develop a novel design approach and to provide practical but rigorous solutions to the problems of decentralised observer and controller design for complex interconnected systems using HOSM techniques. The project will strengthen the collaboration between two leading sliding mode research teams to create a framework for this new research area. In order to avoid packet problems with transfer of information between subsystems, decentralised strategies will be the focus of this research. A novel approach involving artificial interconnections will be developed to reduce the conservatism caused by interaction between subsystems when decentralised strategies are employed. One specific focus will be to remove/suppress the undesired chattering to improve closed-loop system performance. The investigator has been heavily involved in research on interconnected systems using classical sliding mode control for over 10 years and has a strong research track record. The project partner has obtained excellent results in HOSM control specifically in chattering suppression, which is internationally leading in the area of HOSM. The expertise of both research teams is considerable and complementary. The experimental equipment provided by the projector partner will be crucial for testing the results obtained. All these factors are very important to guarantee the project success. As the focus of this proposal is to remove chattering whilst preserving the advantages of HOSM techniques and decentralised strategies, this research will bring the advantages of high robustness to uncertainty, ease of implementation, high reliability and increased lifespan of moving mechanical components when implemented in real systems. The research has great potential to enhance economic efficiency.