CAI Wenjian
Associate Professor of School of Electrical & Electronic Engineering

Phone: 6790 6862, Fax: 6793 3318
Office: S2-B2a-08
Email: ewjcai@ntu.edu.sg

Biography

Dr Cai Wenjian received his BEng, Meng, and PhD from Department of Precision Instrumentation Engineering, Department of Control Engineering, Harbin Institute of Technology, P. R. China, and Department of Electrical Engineering, Oakland University, U.S.A., in 1980, 1983 and 1992, receptively. After graduation, he worked as Postdoctoral Research Fellow at the Center for Advanced Robotics, Oakland University, U. S. A.; Senior Engineer at CEC Controls Company, U. S. A.; Research Scientist at National University of Singapore; Principal Engineer and R&D Manager at Supersymmetry Services Pte Ltd; Senior Research Fellow at Environmental Technology Institute, respectively. He has more than twenty years of industry and research experience in the areas of process control, environmental and energy conservation technologies, participated in many industry related research projects, published more that eighty technical papers with two patents.

Research Interest

Dynamic system modelling, control and optimization; Plantwide control and optimization for HVAC and waste treatment systems; Intelligent sensor technology; Fuzzy systems; Multi-model and Adaptive control.

Selected Research Projects

  • Collaborator, “Development of Steam Ejector Heat Pumps from Automobile Exhaust Heat Sources”, S$0.15m, 2006-2008, funded by National Environmental Agency
  • Principal Investigator, “Development of an intelligent monitoring and control system for hazardous waste Chemical treatment process”, 1999-2001, funded by Purechem Onyx Pte Ltd and National Science and Technology Board of Singapore.
  • Principal Investigator, “Development of an Intelligent Cleanroom Control System”, (S$0.9m), 1996-1998, funded by Supersymetry Pte Ltd and National Science and Technology Board of Singapore.

Selected Publications

  • Qiang Xiong, Wen-Jian Cai, Mao-Jun He, and Ming He, “Decentralized Control System Design for Multivariable Processes - A Novel Method Based on Effective Relative Gain Array” Ind. Eng. Chem. Res. 2006, 45, 2769-2776
  • Xiong Qian, Wen-Jian Cai and Mao-Jun He, “A practical loop pairing criterion for multivariable processes”, Journal of Process Control, 2005, Vol. 15(7), 741-747.
  • Mao-Jun He, Wen-Jian Cai and Shao-Yuan Li, “Evaluation of Decentralized Closed-loop Integrity for Multivariable Control Systems”, Ind. Eng. Chem. Res., Vol. 44, 3567-3574, 2005.
  • Lu Lu, Wen-jian Cai, Yeng Chai Soh and Lihua Xie, “Global optimization for overall HVAC systems-Part I and II, Energy Conversion and Management, Volume 46, Issues 7-8, May 2005, Pages 999-1028.
  • Wang, Ya-Gang and Wen-Jian Cai, “Decentralised relay-based multivariable process identification in the frequency domain”, IEEE Transactions on Automatic Control, 2003. Vol. 48, No. 5, pp. 873-877, 2003.