3 MW Marine Fuel-Cell Hybrid Powertrain
Marine fuel-cell and battery modelling: vessel duty cycles, operating strategy, energy use and heat generation.
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About
Power electronics, open-source tools, and creative systems.
AIPE CAD Agent
The mechanical-geometry agent of the AIPE framework: parametric FreeCAD models of transformers, cooling and converter assemblies with geometric checks, illustrated by a 10 kW DAB converter.
AIPE Field Simulation
The finite-element agent of the AIPE framework: Gmsh and Elmer workflows for thermal and magnetic fields, illustrated by the heat sink of a 10 kW DAB converter, solved from the CAD Agent’s model.
AIPE IEEE Paper Agent
The research-writing agent of the AIPE framework: evidence-linked paper plans and venue-specific IEEE manuscripts, illustrated by a paper plan for the 10 kW DAB benchmark.
AIPE PCB Agent
The PCB design agent of the AIPE framework: from converter requirements to checked KiCad schematics and boards, illustrated by a 5 kW SiC buck converter.
AIPE Sketcher
The schematic agent of the AIPE framework: circuit descriptions to connectivity-checked SVG schematics, illustrated by a dual-active-bridge converter.
Bidirectional Buck–Boost Converter
A modular bidirectional half-bridge converter linking battery banks to the DC bus of a laboratory microgrid.
Converter Design Optimisation
Multi-objective converter design: the optimal design process, an integrated framework for loss, volume and cost, and a Pareto study of a 1 kW buck-type inverter.
DC Microgrid Control Strategies
A hierarchical control scheme for low-voltage DC microgrids: passive converter control, DC bus signalling and rule-based energy management.
Dual-Window DC Bus Signalling
The dual-window DC bus interacting method: working and signalling voltage windows for coordination of sources and storage.
Passive Control for Boost Converter
A high-pass-filtered passive stabiliser that suppresses Boost converter oscillation in DC microgrids without shifting the bus voltage.
Rule-Based EMS and Hierarchical DC Microgrid Operation
Rule-based power management for a DC microgrid: six-bit bus commands, two-level state machines, battery coordination and PV surplus limitation.
Double Pulse Test
Double-pulse testing of power devices: the test circuit, a SiC MOSFET test platform and measurement campaign, and a purpose-designed GaN double-pulse test board.
EMS for DC Microgrids Considering Battery Degradation
An optimisation-based energy management system for DC microgrids that prices battery wear alongside grid electricity, so the battery can hold the bus voltage without excessive cycling.
Aston University DC Microgrid Testbed
A modular low-voltage DC microgrid with grid, PV and battery interfaces, built for PhD control experiments.
Loughborough University DC Microgrid Testbed
A modular low-voltage DC microgrid test bench and its successive interface-converter prototypes.
DC Microgrid Experimental Platforms
Low-voltage DC microgrid testbeds built at Aston and Loughborough, and a 50 kW test bench operated at Zhejiang University.
Zhejiang University 50 kW DC Microgrid Test Bench
A 50 kW DC microgrid test bench at Zhejiang University: converter protection, hierarchical control with passivity-based stabilisation, and droop control of three-phase AC–DC interface converters.
GaN Current Capability Test
Current capability of a packaged GaN power device, tracked through the junction temperature read from an on-chip sensing resistance.
Isolated Converters
Design and simulation of isolated DC–DC converters for data-centre power: LLC resonant and dual-active-bridge topologies.
10 kW LLC Resonant Converter
Resonant-tank design and closed-loop simulation of a 10 kW, 750 V to 50 V LLC converter for data-centre power.
Microgrid Energy Management
Microgrid energy management: a DC microgrid EMS considering battery degradation, the 3 MW marine fuel-cell powertrain and marine thermal evaluation.
Semiconductor Device Modelling
Semiconductor modelling for power conversion, with a SiC static ANN model for conduction, switching energy and thermal response.
Non-Isolated Converters
Non-isolated converters for DC microgrids: bidirectional battery interfaces and Boost-converter stabilisation.
Embedded-Core PCB Current Transformer
A current transformer with a ferrite core embedded in the PCB and a secondary winding of traces and vias, sized with a design workbook for bandwidth, saturation and trace current.
PCB Rogowski Coil Current Sensing
A review of how the Rogowski coil developed and how PCB winding patterns trade off, and five PCB coil designs with on-board signal conditioning for fast current transients in power converters.
PV Battery System
A modified MPPT algorithm that combines solar power tracking with battery charging limits in one converter controller.
Power Device Reliability Testing
Environmental and thermal reliability testing of SiC power modules and GaN devices.
Current Sensing
Compact PCB-integrated current sensors for fast-switching power converters: a PCB Rogowski coil and an embedded-core PCB current transformer.
SiC Power Devices — Static ANN Modelling
Neural-network models of SiC conduction, switching energy and thermal response for converter loss and temperature calculations.
Thermal Evaluation
Enclosure thermal modelling and ventilation behaviour across North Sea, Persian Gulf and Singapore climate scenarios.
Solid-State Transformers
A review of solid-state transformer technology for the ASSIST project, and the simulation-based design of the dual-active-bridge stage of a three-stage SST with Cardiff University.
Power Device Characterization
Electrical and thermal characterization of SiC and GaN power devices: double-pulse testing, thermal resistance and impedance, and current capability.
Thermal Characterization
Thermal resistance of a packaged GaN power device from an on-chip temperature-sensing resistance, and transient thermal impedance of a SiC MOSFET.
Wireless Power Transfer
Wireless power transfer research for underwater applications and a postdoctoral prototype test bench.
Posts
Spirit Connect Group
Published:
Keywords: Open Source, Power Electronics, Community, Collaboration.
WiPDA2024, Cardiff, UK
Published:
Attending WiPDA-Europe in Cardiff as an audience member, catching up on power semiconductor applications and exchanging ideas with fellow engineers.
PEAC 2022, Guangzhou, China
Published:
Joining PEAC 2022 online to present our DC microgrid signalling review, and celebrating a Best Paper Award with my co-authors.
IEEE PES General Meeting 2020, Montreal, Canada
Published:
Presenting research from my Waterloo visit through a recorded video during the pandemic, while hoping to visit Montreal in person another time.
ISIE 2020, Delft, The Netherlands
Published:
Sharing a virtual poster at ISIE 2020 during the pandemic, with memories of earlier Delft visits and hopes for meeting there again.
Research at Loughborough University — Hierarchical Control for DC Microgrids
Published:
Keywords: Research Associate, Loughborough University, DC microgrid, Hierarchical Control, EPSRC.
I successfully defended my PhD thesis
Published:
Keywords: PhD, Aston University, DC microgrid, thesis defense.
ISIE 2019, Vancouver, Canada
Published:
An award-winning three-minute presentation, meeting Robert Erickson, and exploring Vancouver with new friends made ISIE 2019 a highlight of my year.
ICDCM 2019, Matsue, Japan
Published:
Presenting a poster in Matsue, exploring Japanese shrines and gardens, and reflecting on the people behind academic reputations.
My Secondment to University of Waterloo, Canada, 2019
Published:
Keywords: PhD Secondment, University of Waterloo, Canada, DC microgrid, energy management, conference paper.
Invited Talk, Corfu, Greece 2018
Published:
Keywords: Oral Prenestation, RDC2MT
ECCE 2018, Portland, OR, USA
Published:
My first visit to the United States: presenting at ECCE in Portland, exploring the city, and forming impressions through my own experience.
My Secondment to Zhejiang University, China, 2018
Published:
I am still trying to build this page…
My Secondment to DC Systems BV, Netherlands, 2017
Published:
Keywords: Industrial Secondment, DC Systems BV, The Netherlands, DC protection, DC microgrid.
ICDCM 2017, Nuremberg, Germany
Published:
Keywords: Oral presentation
ICRERA 2016, Birmingham, UK
Published:
Keyword：Oral presentation
notes
Beyond the Moat: Why AI is the New Frontier of Human Imagination
Published:
keywords: blogs, digital civilization, humanity, future
Heated Rivalry
Published:
keywords: blogs, review, LGBTQ+, Canada
The AI and the Akashic Records
Published:
keywords: blogs, AI, philosophy, civilization, future
The Last Test of AI
Published:
keywords: blogs, AI, math, control systems
publications
Journal Papers
Published in , 2009
- Li, F., Lin, Z., Xu, H., Wang, F.: Comprehensive local control design for eliminating line resistance effect on power sharing degradation in DC microgrids. IET Power Electron. 15, 11–22 (2022).
- F. Li and Z. Lin, “Novel Passive Controller Design for Enhancing Boost Converter Stability in DC Microgrid Applications,” in IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 9, no. 6, pp. 6901-6911, Dec. 2021.
- F. Li, Z. Lin, Z. Qian, J. Wu and W. Jiang, “A Dual-Window DC Bus Interacting Method for DC Microgrids Hierarchical Control Scheme,” in IEEE Transactions on Sustainable Energy, vol. 11, no. 2, pp. 652-661, April 2020.
- M. Alshareef, Z. Lin, F. Li and F. Wang, “A grid interface current control strategy for DC microgrids,” in CES Transactions on Electrical Machines and Systems, vol. 5, no. 3, pp. 249-256, Sept. 2021.