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Simulation of Distributed Wireless Networked Control Systems over MANET using OPNET (2007)
Presentation / Conference Contribution
Hasan, M. S., Yu, H., Griffiths, A., & Yang, T. C. (2007). Simulation of Distributed Wireless Networked Control Systems over MANET using OPNET. In 2007 IEEE International Conference on Networking, Sensing and Control. https://doi.org/10.1109/icnsc.2007.3

This paper investigates the simulation of distributed wireless networked control systems (WNCS) over mobile ad-hoc network (MANET). The simulation model includes multiple plants with a single controller and random node mobility. The widely used netwo... Read More about Simulation of Distributed Wireless Networked Control Systems over MANET using OPNET.

An Interface between MATLAB and OPNET to Allow Simulation of WNCS with MANETs (2007)
Presentation / Conference Contribution
Harding, C., Griffiths, A., & Yu, H. (2007). An Interface between MATLAB and OPNET to Allow Simulation of WNCS with MANETs. In 2007 IEEE International Conference on Networking, Sensing and Control. https://doi.org/10.1109/icnsc.2007.372867

MATLAB is a software simulator which is good for simulating the mathematical modeling and feedback control, while OPNET is a software tool which is good for simulating the network communication behavior. However, currently simulating the communicatio... Read More about An Interface between MATLAB and OPNET to Allow Simulation of WNCS with MANETs.

Modeling and control of hybrid machine systems — a five-bar mechanism case (2006)
Journal Article
Yu, H. (2006). Modeling and control of hybrid machine systems — a five-bar mechanism case. International Journal of Automation and Computing, 3(3), 235-243. https://doi.org/10.1007/s11633-006-0235-1

A hybrid machine (HM) as a typical mechantronic device, is a useful tool to generate smooth motion, and combines the motions of a large constant speed motor with a small servo motor by means of a mechanical linkage mechanism, in order to provide a po... Read More about Modeling and control of hybrid machine systems — a five-bar mechanism case.

Modeling delay and packet drop in Networked Control Systems using network simulator NS2 (2005)
Journal Article
Hasan, M. S., Harding, C., Yu, H., & Griffiths, A. (2005). Modeling delay and packet drop in Networked Control Systems using network simulator NS2. International Journal of Automation and Computing, 2(2), 187-194. https://doi.org/10.1007/s11633-005-0187-x

Wireless Networked Control Systems (WNCS) are used to implement a control mechanism over a wireless network that is capable of carrying real-time traffic. This field has drawn enormous attention from current researchers because of its flexibility and... Read More about Modeling delay and packet drop in Networked Control Systems using network simulator NS2.

Novel probability neural network (2005)
Journal Article
Cang, S., & Yu, H. (2005). Novel probability neural network. IEE Proceedings: Vision, Image and Signal Processing, 152(5), 535-544. https://doi.org/10.1049/ip-vis%3A20059021

This paper presents a novel probability neural network (PNN) that can classify the data for both continuous and categorical input data types. A mixture model of continuous and categorical variables is proposed to construct a probability density funct... Read More about Novel probability neural network.

Combined Petri net modelling and AI-based heuristic hybrid search for flexible manufacturing systems—part II. Heuristic hybrid search (2003)
Journal Article
Yu, H., Reyes, A., Cang, S., & Lloyd, S. (2003). Combined Petri net modelling and AI-based heuristic hybrid search for flexible manufacturing systems—part II. Heuristic hybrid search. Computers and Industrial Engineering, 44(4), 545-566. https://doi.org

This two-part paper presents modelling and scheduling approaches of flexible manufacturing systems using Petri nets (PNs) and artificial intelligence (AI)-based heuristic search methods. In Part I, PN-based modelling approaches and basic AI-based heu... Read More about Combined Petri net modelling and AI-based heuristic hybrid search for flexible manufacturing systems—part II. Heuristic hybrid search.

Combined Petri net modelling and AI based heuristic hybrid search for flexible manufacturing systems—part 1. Petri net modelling and heuristic search (2002)
Journal Article
Yu, H., Reyes, A., Cang, S., & Lloyd, S. (2003). Combined Petri net modelling and AI based heuristic hybrid search for flexible manufacturing systems—part 1. Petri net modelling and heuristic search. Computers and Industrial Engineering, 44(4), 527-543.

This two-part paper presents modelling and scheduling approaches for flexible manufacturing systems (FMS) using Petri nets (PNs) and artificial intelligence (AI) based heuristic search methods. In part I, the description of FMS formulation that will... Read More about Combined Petri net modelling and AI based heuristic hybrid search for flexible manufacturing systems—part 1. Petri net modelling and heuristic search.

Modelling and control of magnetic suspension systems (2002)
Presentation / Conference Contribution
Yu, H., Yang, T., Rigas, D., & Jayawant, B. (2002). Modelling and control of magnetic suspension systems. In Proceedings of the International Conference on Control Applications. https://doi.org/10.1109/cca.2002.1038729

The paper discusses the modelling and control of DC magnetic suspension systems. The dynamic model of magnetic suspension systems is first developed by using the Euler-Lagrange's formulation. The several important properties, which are very useful fo... Read More about Modelling and control of magnetic suspension systems.

Decentralised power system load frequency control beyond the limit of diagonal dominance (2002)
Journal Article
Yang, T., Ding, Z., & Yu, H. (2002). Decentralised power system load frequency control beyond the limit of diagonal dominance. International Journal of Electrical Power and Energy Systems, 24(3), 173-184. https://doi.org/10.1016/s0142-0615%2801%2900028-x

The design of decentralised robust load frequency control for interconnected multi-area power systems is studied in this paper. It is shown that although the design can be naturally formulated as a large-scale system decentralised control problem, it... Read More about Decentralised power system load frequency control beyond the limit of diagonal dominance.

Integrating Petri Nets and hybrid heuristic search for the scheduling of FMS (2001)
Journal Article
Reyes, A., Yu, H., Kelleher, G., & Lloyd, S. (2002). Integrating Petri Nets and hybrid heuristic search for the scheduling of FMS. Computers in Industry, 47(1), 123-138. https://doi.org/10.1016/s0166-3615%2801%2900124-5

This paper studies modelling and scheduling of Flexible Manufacturing Systems (FMS) using Petri Nets (PNs) and Artificial Intelligence (AI) based on heuristic search methods. A subclass of PNs, Buffer nets or B-nets is obtained by the systematic synt... Read More about Integrating Petri Nets and hybrid heuristic search for the scheduling of FMS.

Advanced scheduling methodologies for flexible manufacturing systems using Petri nets and heuristic search (2000)
Presentation / Conference Contribution
Moro, A., Yu, H., & Kelleher, G. (2000). Advanced scheduling methodologies for flexible manufacturing systems using Petri nets and heuristic search. In Proceedings 2000 ICRA. Millennium Conference. IEEE International Conference on Robotics and Automation

The combination of Petri net (PN) and AI to solve flexible manufacturing systems (FMS) scheduling problems has been proven to be a promising approach. However, the NP-hard nature of the problem prevents the PN capability of reasoning about the behavi... Read More about Advanced scheduling methodologies for flexible manufacturing systems using Petri nets and heuristic search.

Robust Combined Adaptive and Variable Structure Adaptive Control of Robot Manipulators (1998)
Journal Article
Yu, H. (1998). Robust Combined Adaptive and Variable Structure Adaptive Control of Robot Manipulators. Robotica, 16(6), 623-650. https://doi.org/10.1017/s0263574798000563

The paper addresses the robust adaptive control problem of robot manipulators. The dynamic equations of robot manipulators and their fundamental properties that facilitate analysis and control system design are first reviewed. Then the direct, indire... Read More about Robust Combined Adaptive and Variable Structure Adaptive Control of Robot Manipulators.

Variable structure adaptive control of robot manipulators (1997)
Journal Article
Yu, H., & Lloyd, S. (1997). Variable structure adaptive control of robot manipulators. IET Control Theory and Applications, 144(2), 167-176. https://doi.org/10.1049/ip-cta%3A19970803

The two main problems with variable-structure control are control input chattering and the assumption of known parameter uncertainty bounds, the second of which is studied. The robustness of a recently proposed variable-structure control approach wit... Read More about Variable structure adaptive control of robot manipulators.

Combined direct and indirect adaptive control of constrained robots (1997)
Journal Article
Yu, H., & Lloyd, S. (1997). Combined direct and indirect adaptive control of constrained robots. International Journal of Control, 68(5), 955-970. https://doi.org/10.1080/002071797223154

The force tracking error is dependent on both the position tracking error and the estimated parameter error so that, in constrained adaptive robot control, the convergence of the estimated parameter error becomes more important than in unconstrained... Read More about Combined direct and indirect adaptive control of constrained robots.