Contact Dr Lejun Chen
- Tel: +44 (0) 1234 754897
- Email: Lejun.Chen@cranfield.ac.uk
- ORCID
Areas of expertise
- Aeronautical Systems
- Autonomous Systems
- Computing, Simulation & Modelling
- Flight Physics
- Instrumentation, Sensors and Measurement Science
- Mechatronics & Advanced Controls
- Safety, Resilience, Risk & Reliability
Background
Dr Lejun Chen obtained his PhD degree from the intelligent system group, the University of York. Recently, he has been appointed as a lecturer at the Centre of Aeronautics, Cranfield University. Before joining Cranfield, he was based on the control group at the University of Exeter. In the past ten years, he has been involved and working collaboratively with experts from industry and academia in international level cutting-edge research projects:
EU-FP7 project "Advanced Fault Diagnosis for Sustainable Flight Guidance and Control (ADDSAFE)" with participation for Airbus (France), DLR (Germany), STZAKI (Hungary), CNRS-IMS (France) and the Universities of Delft (The Netherlands), Leicester (U.K.) , Hull (U.K.) and Deimos (Spain).
HEIF5 infrastructure funded wind turbine fault tolerant control project.
EU-FP7 project "Reconfiguration of Control in Flight for Integral Global Upset Recovery (RECONFIGURE)". with participation for Airbus (France), DLR (Germany), STZAKI (Hungary), ONERA (France) and the Universities of Delft (The Netherlands),Exeter (U.K.), Cambridge(U.K.) and Deimos (Spain). His fault estimation and fault tolerant control schemes had been selected to be demonstrated on Airbus's flight simulator in Toulouse as part of the final project meeting.
EU (Horizon 2020)/Japan project "Validation of Integrated Safety-enhanced Intelligent flight cONtrol (VISION)". This project aims at developing smart fault detection and fault tolerant schemes for improving aircraft GNC based on the robust control technology or the vision-based system. In February 2017 and April 2018, his actuator condition monitoring and sensor fault tolerant control designs were flight-tested on a piloted aircraft in Tokyo.
Current activities
Dr Chen's current research interests are in observation and control, and their application to aerospace and autonomous systems.
Clients
- BAE Systems
- JAXA
- Airbus
- COMAC
Publications
Articles In Journals
- Chen L & Van M (2020) Sliding mode control of a class of underactuated system with non-integrable momentum, Journal of The Franklin Institute - Engineering and Applied Mathematics, Available online 20 July 2020.
- Chen L, Edwards C & Alwi H (2020) Sliding mode observers for a class of LPV systems, International Journal of Robust and Nonlinear Control, Available online 04 March 2020 (8).
- Chen L, Edwards C, Alwi H & Sato M (2020) Flight evaluation of a sliding mode online control allocation scheme for fault tolerant control, Automatica, 114 (April) Article No. 108829.
- Chen L, Alwi H & Edwards C (2019) On the synthesis of an integrated active LPV FTC scheme using sliding modes, Automatica, 110 (December) Article No. 108536.
- Chen L, Edwards C & Alwi H (2019) Integral sliding mode fault-tolerant control allocation for a class of affine nonlinear system, International Journal of Robust and Nonlinear Control, 29 (3) 565-582.
- Chen L, Alwi H & Edwards C (2019) Development and evaluation of an integral sliding mode fault-tolerant control scheme on the RECONFIGURE benchmark, International Journal of Robust and Nonlinear Control, 29 (16) 5314-5340.
- Chen L, Edwards C & Alwi H (2019) Sensor fault estimation using LPV sliding mode observers with erroneous scheduling parameters, Automatica, 101 (March) 66-77.
- Chen, L; Edwards, C; Alwi & H (2018) Sensor redundancy based FDI using an LPV sliding mode observer, IET Control Theory and Applications, 12 (14) 1956-1963.
- Chen L, Pomfret A & Clarke T (2018) Multistage output-lifting eigenstructure assignment: a multirate ball and plate example, International Journal of Control, 92 (12) 2761-2775.
- Sato M, Hardier G, Ferreres G, Edwards C, Alwi H, Chen L & Marcos A (2018) Fault tolerance - background and recent trends, Keisoku to Seigyo, 57 (4) 279-286.
- Chen L, Patton R & Goupil P (2016) Robust fault estimation using an LPV reference model: ADDSAFE benchmark case study, Control Engineering Practice, 49 (April) 194-203.
- Alwi H, Chen L & Edwards C (2016) Reconstruction of simultaneous actuator and sensor faults for the RECONFIGURE benchmark using a sliding mode observer, IFAC Proceedings Volumes, 47 (3) 3497-3502.
- Chen L, Pomfret AJ & Clarke T (2016) Increasing eigenstructure assignment design degree of freedom using lifting, International Journal of Control, 90 (10) 2111-2123.
- Chen L, Patton R & Goupil P (2016) Application of model-based LPV actuator fault estimation for an industrial benchmark, Control Engineering Practice, 56 60-74.
- Chen L, Alwi H & Edwards C (2015) Development and Application of an LPV Fault Tolerant Integral Sliding Mode Control Allocation Scheme for the RECONFIGURE Benchmark Model, IFAC-PapersOnLine, 48 (21) 994-999.
- Patton R.J., Chen L & Klinkhieo S (2012) An LPV pole-placement approach to friction compensation as an FTC problem, International Journal of Applied Mathematics and Computer Science, 22 (1) 149-160.
Conference Papers
- Chen L, Alwi H, Edwards C & Sato M (2019) Flight evaluation of an LPV sliding mode controller with online control allocation. In: 2017 IEEE 56th Annual Conference on Decision and Control (CDC), Melbourne, 12-15 December 2017.
- Chen L, Edwards C, Alwi H & Sato M (2019) Hardware-in-the-loop simulation for a sliding mode FDI scheme. In: 2019 American Control Conference, Philadelphia, 10-12 July 2019.
- Chen L, Alwi H, Edwards C & Sato M (2018) Evaluation of a sliding mode fault tolerant controller on the MuPAL-$\alpha$research aircraft. In: 2018 IEEE Conference on Control Technology and Applications (CCTA), Copenhagen, 21-24 August 2018.
- Chen L, Edwards C & Alwi H (2018) On the synthesis of variable structure observers for LPV systems. In: 2017 IEEE 56th Annual Conference on Decision and Control (CDC), Melbourne, 12-15 December 2017.
- Chen L, Alwi H, Edwards C & Sato M (2018) Active fault tolerant control of MuPAL-a using sliding modes. In: 2018 American Control Conference (ACC), Milwaukee, WI, 27-29 June 2018.
- Edwards C, Chen L, Khattab A, Alwi H & Sato M (2018) Flight evaluations of sliding mode fault tolerant controllers. In: 2018 15th International Workshop on Variable Structure Systems (VSS), Graz, 9-11 July 2018.
- Alwi H, Chen L & Edwards C (2018) Application of an LPV based model reference FTC scheme on the RECONFIGURE benchmark model. In: 2018 American Control Conference (ACC), Milwaukee, WI, 27-29 June 2018.
- Chen L, Alwi H, Edwards C & Sato M (2017) Hardware-in-the-loop evaluation of an LPV sliding mode fixed control allocation scheme on the MuPAL-α research aircraft. In: 2017 IEEE Conference on Control Technology and Applications (CCTA), Mauna Lani, 27-30 August 2017.
- Chen L, Edwards C & Alwi H (2016) LPV sliding mode observers for sensor fault reconstruction with erroneous scheduling parameter measurements. In: 2015 IEEE 54th Annual Conference on Decision and Control (CDC), Osaka, 15-18 December 2015.
- Chen L, Alwi H & Edwards C (2016) Application and evaluation of an LPV integral sliding mode fault tolerant control scheme on the RECONFIGURE benchmark. In: 2016 American Control Conference (ACC), Boston, MA, 6-8 July 2016.
- Chen L, Alwi H & Edwards C (2016) Integrated LPV controller/estimator scheme using sliding modes. In: 2015 IEEE 54th Annual Conference on Decision and Control (CDC), Osaka, 15-18 December 2015.
- Chandra KPB, Chen L & Alwi H and Edwards C (2016) Actuator faults and blow-down limit detection, and fault tolerant control for the RECONFIGURE benchmark problem. In: 2016 IEEE Conference on Control Applications (CCA), Buenos Aires, 19-22 September 2016.
- Chandra KPB, Chen L, Alwi H & Edwards C (2016) Development and evaluation of sliding mode schemes for the RECONFIGURE benchmark problem. In: 2016 3rd Conference on Control and Fault-Tolerant Systems (SysTol), Barcelona, 7-9 September 2016.
- Chen L, Shi F & Patton RJ (2014) Active FTC for hydraulic pitch system for an off-shore wind turbine. In: 2013 Conference on Control and Fault-Tolerant Systems (SysTol), Nice, 9-11 October 2013.