Dr Ross Drummond
School of Electrical and Electronic Engineering
Lecturer in Control and Systems Engineering
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Full contact details
School of Electrical and Electronic Engineering
Amy Johnson Building
Portobello Street
Sheffield
S1 3JD
- Profile
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Ross Drummond received an MEng degree from the Department of Aeronautical Engineering at Imperial College London (2009-2013). He then moved to the Control Group at the University of Oxford (2013-2017) to complete his DPhil degree. After some time as a research assistant (2017-2020) working on battery modelling, he was awarded a UK Intelligence Community research fellowship from the Royal Academy of Engineering. He is set to begin a lectureship in the Department of Automatic Control and Systems Engineering at the University of Sheffield upon completion of his fellowship.
- Research interests
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My research focuses on the use of modelling, control theory and optimisation to improve the performance of energy storage devices, notably lithium ion batteries. By using ideas from control theory to make our energy storage devices smarter, the goal of this research is to enable better batteries through more efficient management and control.
Understanding lithium ion batteries requires understanding the dynamics of nonlinear systems. For that reason, another aspect of my research is on developing tools to characterise stability properties of nonlinear systems. A particular focus is on the absolute stability problem where my collaborators and I have developed several results including on the search for Zames-Falb multipliers and Lyapunov functions.
Using these methods on the stability analysis of nonlinear systems, I have been motivated to address the problem of the lack of robustness of machine learning algorithms, particularly those driven by neural networks. As well as quantifying neural network robustness, I am also interested in drawing connections between model-based and datadriven control. The goal of this research is to exploit control theory’s understanding of nonlinear system dynamics to facilitate the deployment of data-driven control to safety-critical systems.
- Publications
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Journal articles
- A Multilayer Doyle-Fuller-Newman Model to Optimise the Rate Performance of Bilayer Cathodes in Li Ion Batteries. Journal of The Electrochemical Society, 171(6), 060531-060531.
- Control of Additive Manufacturing for Radio Frequency Devices With Spatially Varying Dielectric Properties. IEEE Transactions on Control Systems Technology, PP(99), 1-11.
- Reduced-Order Neural Network Synthesis With Robustness Guarantees. IEEE Transactions on Neural Networks and Learning Systems, 35(1), 1182-1191.
- Externally Positive Linear Systems From Transfer Function Properties. IEEE Control Systems Letters, 7, 3908-3913.
- Logarithmically completely monotonic rational functions. Automatica, 155, 111122-111122.
- Generalised Lyapunov functions for discrete-time Lurie systems with slope-restricted nonlinearities. IEEE Transactions on Automatic Control, 1-12.
- Aizerman Conjectures for a class of multivariate positive systems. IEEE Transactions on Automatic Control, 1-8.
- Extending the energy-power balance of Li-ion batteries using graded electrodes with precise spatial control of local composition. Journal of Power Sources, 542, 231758-231758.
- Roadmap on Li-ion battery manufacturing research. Journal of Physics: Energy.
- Modelling the Impedance Response of Graded LiFePO4 Cathodes for Li-Ion Batteries. Journal of The Electrochemical Society, 169(1), 010528-010528.
- Regional Stability Analysis of Transitional Fluid Flows. IEEE Control Systems Letters, 6, 2287-2292.
- Resolving Kirchhoff’s Laws for Parallel Li-Ion Battery Pack State-Estimators. IEEE Transactions on Control Systems Technology, 30(5), 2220-2227.
- Combining composition graded positive and negative electrodes for higher performance Li-ion batteries. Journal of Power Sources, 448, 227376-227376.
- Analysis of Systems With Slope Restricted Nonlinearities Using Externally Positive Zames–Falb Multipliers. IEEE Transactions on Automatic Control, 65(4), 1660-1667.
- A Feedback Interpretation of the Doyle–Fuller–Newman Lithium-Ion Battery Model. IEEE Transactions on Control Systems Technology, 28(4), 1284-1295.
- Micro-scale graded electrodes for improved dynamic and cycling performance of Li-ion batteries. Journal of Power Sources, 413, 59-67.
- Regional Analysis of Slope-Restricted Lurie Systems. IEEE Transactions on Automatic Control, 64(3), 1201-1208.
- Design Tools for Electrochemical Supercapacitors Using Local Absolute Stability Theory. IEEE Transactions on Control Systems Technology, 27(3), 1071-1083.
- Generalized Absolute Stability Using Lyapunov Functions With Relaxed Positivity Conditions. IEEE Control Systems Letters, 2(2), 207-212.
- Circuit synthesis of electrochemical supercapacitor models. Journal of Energy Storage, 10, 48-55.
- Low-order mathematical modelling of electric double layer supercapacitors using spectral methods. Journal of Power Sources, 277, 317-328.
- Exponential input-to-state stability for Lur’e systems via Integral Quadratic Constraints and Zames–Falb multipliers. IMA Journal of Mathematical Control and Information, dnae003.
Conference proceedings papers
- Optimal Flight Trajectories of Hybrid Electric Aircraft with In-Flight Charging. 2024 European Control Conference (ECC), 25 June 2024 - 28 June 2024.
- Incremental Stability Analysis of Lurie Systems. 2024 European Control Conference (ECC), 25 June 2024 - 28 June 2024.
- Tuning the Feedback Controller Gains is a Simple Way to Improve Autonomous Driving Performance. 2024 UKACC 14th International Conference on Control (CONTROL), 10 April 2024 - 12 April 2024.
- Discretisation-free battery fast-charging optimisation using the measure-moment approach. 2022 European Control Conference (ECC), 12 July 2022 - 15 July 2022.
- Equivalent Circuits for Electrochemical Supercapacitor Models * *This work was supported in part by funding from the EPSRC.. IFAC-PapersOnLine, Vol. 50(1) (pp 2671-2676)
Preprints
- A multilayer Doyle-Fuller-Newman model to optimise the rate performance of bilayer cathodes in Li ion batteries, Research Square Platform LLC.
- A multilayer Doyle-Fuller-Newman model to optimise the rate performance of bilayer cathodes in Li ion batteries, Research Square Platform LLC.
- Tuning the feedback controller gains is a simple way to improve autonomous driving performance, arXiv.
- A multilayer Doyle-Fuller-Newman model to optimise the rate performance of bilayer cathodes in Li ion batteries, Research Square Platform LLC.
- A multilayer Doyle-Fuller-Newman model to optimise the rate performance of bilayer cathodes in Li ion batteries, Research Square Platform LLC.
- A multilayer Doyle-Fuller-Newman model to optimise the rate performance of bilayer cathodes in Li ion batteries, Research Square Platform LLC.
- Bridging the Gap Between Microstructurally Resolved
Computed Tomography-Based and Homogenised
Doyle-Fuller-Newman Models for Lithium-Ion Batteries, Research Square Platform LLC.
- Detecting faulty lithium-ion cells in large-scale parallel battery packs using current distributions, Research Square Platform LLC.
- A Multilayer Doyle-Fuller-Newman Model to Optimise the Rate Performance of Bilayer Cathodes in Li Ion Batteries. Journal of The Electrochemical Society, 171(6), 060531-060531.
- Grants
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Research Grants
- High energy density battery pack design without compromising on safety, Royal Academy of Engineering, UK Intelligence Community Research Fellowship, 10/2020 - 11/2023, £200,000 as PI
- Teaching activities
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ACS133 Physical Systems