Zhen Liu


Biography
Dr. Liu earned his Ph.D. in Civil Engineering, with an emphasis in Geotechnical Engineering, from Case Western Reserve University in Cleveland, Ohio, in 2012. He continued working at Case as a research associate before joining the department. His teaching interests include soil mechanics, foundation engineering, numerical simulations, and other topics in classical mechanics. His research interests are integrated as the multiphysics simulation and innovative characterization in porous materials. The scope covers the numerical simulation and experimental measurement of multiphysical phenomena such as freezing, hydration, and dissociation and covers porous materials such soils, cement-base materials, gas hydrates, and biomaterials. His research has many direct applications in infrastructure sustainability, energy resources, environment protection, and advanced materials. Dr. Liu is currently serving as an active member on the ASCE task committee (Engineering Geology) and TRB standing committees (Physicochemical and Biological Processes, Climatic Effects, Unsaturated Soils).

  • Research Interests
  • Multiphysical phenomena: soil freezing, cement hydration, gas hydrate dissociation, carbon sequestration, shale gas recovery, processes in geothermal practice
  • Development and application of innovative sensor techniques
  • Innovative characterization (acoustic, electromagnetic) and advanced mechanics of porous materials (unsaturated soil mechanics, poromechanics)
  • Climatic effects on infrastructure
  • Numerical simulation techniques: Multiphysics and Multiscale, XFEM, SPH
  • ,

    2013 Publications

    • S. Castano, L. Gauchia, J. Sanz, 2013, “Effect of Packaging on Supercapacitors Strings
      Modeling: Proposal of a Functional Unit Defined Around the Balancing Circuit,” IEEE
      Transactions on Components, Packaging and Manufacturing Technology, Vol. 3, pp.
      1390-1398.
    • M. Maasoumy, B. Moridian, M. Razmara, M. Shahbakhti, A. Sangiovanni-Vincentelli, 2013, “Online Simultaneous State Estimation and Parameter Adaptation for Building Predictive Control,” ASME Dynamic Systems and Control Conference, Oct. 21-23, Palo Alto, CA, USA.
    • D. Rizzo and G. Parker, 2013, “State of Charge Optimization for Military Hybrid Vehicle
      Microgrids,” Proceedings of the 2013 IEEE PES Conference on Innovative Smart Grid
      Technologies, Feb. 24-27, Washington, DC.

    2012 Publications

    • O. Abdelkhalik, 2012, “Hidden Genes Genetic Optimization for Variable-Size Design Space Problems,” Journal of Optimization Theory and Applications, Vol. 155, No. 2.
    • B. Banerjee, W.W. Weaver, 2012, “Geometric Manifold Control of Power Electronics in DC Microgrids,” Proceedings of the IEEE Workshop on Control and Modeling for Power Electronics (COMPEL), June 10-13, Kyoto, Japan.
    • K. Bordeau, G. Parker, G. Vosters, W. Weaver, J. Kelly, D.G. Wilson, R.D. Robinett, 2012,
      “Distributed Control of Plug-in Hybrid Electric Vehicles on a Smart Grid,” Proceedings of the IEEE International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM), June 20-22, Sorrento, Italy.
    • N. Ekneligoda and W. Weaver, 2012, “Game-Theoretic Communication Structures in
      Microgrids,” IEEE Transactions on Power Delivery, Vol. 27, No. 4, pp. 2334-2341.
    • A. Giacomoni, S. Goldsmith, S. Amin, and B. Wollenberg, 2012, “Analysis, Modeling, and
      Simulation of Autonomous Microgrids with a High Penetration of Renewables,” Proceedings of the IEEE Power and Energy Society General Meeting, July 22-26, San Diego, CA.
    • M. Heath, G. Vosters, G. Parker, W. Weaver, D. Wilson, and R Robinett, 2012, “DC Microgrid Optimal Storage Distribution Using a Conductance and Energy State Modeling Approach,” Proceedings of the IEEE International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM), June 20-22, Sorrento, Italy.
    • R. Robinett, D. Wilson, and S. Goldsmith, 2012, “Collective Control of Networked Microgrids with High Penetration of Variable Resources Part I: Theory,” Proceedings of the IEEE International Conference on Cyber Technology in Automation, Control, and Intelligent Systems (CYBER), Bangkok, Thailand, May 27-31.
    • G. Vosters and W. Weaver, 2012, “Energy Space Modeling of Power Electronics in Local Area Power Networks,” Advances in Power Electronics.
    • W. Weaver, N. Mahmoudian and G. Parker, 2012, “Autonomous Mobile Power Blocks for
      Prepositioned Power Conversion and Distribution,” Proceedings of the Ground Vehicle Systems Engineering and Technology Symposium (GVSETS), Aug 12-14, Novi, MI.
    • J. Williams, D. Wilson, and R. Robinett, 2012, “Transient Stability and Performance Based on Nonlinear Power Flow Control Design of Wind Turbines,” Proceedings of the International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM), June 20-22, Sorrento, Italy.
    • D. Wilson, R. Robinett, and S. Goldsmith, 2012, “Renewable Energy Microgrid Control with Energy Storage Integration,” Proceedings of the International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM), June 20-22, Sorrento, Italy.

    AC/DC Microgrid

    Affiliated Research Centers and Facilities

    AC DC Microgrid

    AC/DC Microgrid Power Electronics & Control Testbed

    A highly flexible laboratory test-bed for advanced control and energy conversion research for microgrids.

    Prepositioned Power Facility

    Affiliated Research Centers and Facilities

    Prepositioned Power Facility

    Prepositioned Power Facility

    Test room for experimenting with distributed control of US Army Talon robots to autonomously create a power infrastructure in advance of troops.

    Agile Microgrid Testbench

    Affiliated Research Centers and Facilities

    Agile Microgrid Testbench

    Agile Microgrid Testbench

    Platform for performing multiple time scale, mocrogrid control and optimization studies with with nonhomogenous controllable storage, loads, and sources.

    Keweenaw Research Center

    Affiliated Research Centers and Facilities

    Keweenaw Research Center

    Keweenaw Research Center

    60 year history of vehicle-related, DoD research. 100,000 sq ft of laboratory and office space, 500 acre test tract, variety of military vehicle assets, net-positive building development.

    HEV Mobile Lab

    Affiliated Research Centers and Facilities

    HEV Mobile Lab

    HEV Mobile Lab / Microgrid / Smartgrid Advanced Power Systems Research Center

    Traveling HEV and micogrid education and research facility with interactive capabilities: (HEV powertrain dynamometer, instrumented power flow, 80kW generator, DC & AC busses, PV array & wind turbine, 5kW computer controlled load, Wireless device communication, Interactive GUI controlling, PV array/battery pack inverter, 0-5kW load profile, Wind turbine inverter, High speed data acquisition, 64 analog channels, Up to 10k Hz, Circuits instrumented for current & voltage, Plug-in electric vehicle)

    About Agile Interconnected Microgrid Research

    Agile Interconnected Microgrids (AIM) is a multidisciplinary research center with a broad research goal of solving future, long-term technical challenges of our Nation’s energy objective through microgrid modeling, control, and optimization. AIM has many research threads all focused towards achieving a single goal – scalable and flexible energy resource planning and execution for military and commercial sectors. The areas of research include; stability, optimization and control, cyber security, economics, intelligent power electronics, and human factors.

    Agile microgrids of the future will efficiently use stochastic generation, stochastic loads, and minimal energy storage to deliver power in both structured and unstructured environments. Their intelligent, multimode use of vehicles, high penetration of renewable sources, and system-level efficiency offer the promise of reducing fossil-fuel consumption. The purpose of the Center for Agile Interconnected Microgrids is to 1) develop technology and trained engineers for the design, deployment, and operation of agile microgrids with high penetration renewables, both fixed and mobile assets and the ability to interconnect within a cyber-secure framework; 2) curriculum development and commercial research that educates engineers with skills to solve energy-related, interdisciplinary problems and design next-generation systems; and 3) Commercialize IP developed at Michigan Tech to field microgrid and cyber security applications.

    AIM has researchers in the Department of Mechanical Engineering-Engineering Mechanics, Department of Electrical and Computer Engineering, and Department of Computer Science at Michigan Technological University.