RENEWABLE ENERGY AND DISTRIBUTED GENERATION ​​

The mechanisms of energy conversion from renewable sources are entirely different from traditional methods and involve multidisciplinary areas. Solar photovoltaic (PV) cells convert sunlight directly into electricity. Wind turbines capture aerodynamic energy from the wind and convert the mechanical energy into electricity through electric generators. Fuel cells convert the chemical energy from a fuel into electricity through chemical reaction with oxygen or another oxidizing agent. Batteries store the electrical energy into chemical energy and release the energy by chemical reaction when it is needed. Therefore, conversion and storage of renewable energy involves multidisciplinary areas, which causes a great challenge to integrate diverse renewable sources into the electric power grid. 
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Research Interests:

  • Explore interoperability characteristics of typical renewable energy sources and energy storage systems
  • Develop and model renewable energy sources and systems by adopting advanced computational strategies over the state-of-the-art cyberinfrastructure
  • Design and analyze renewable energy conversion systems
  • Investigate economics for grid integration of the different renewable sources by considering smart grid and smart metering technologies.

Patents:

  • Shuhui Li, “A New Solar Photovoltaic Module Structure for Enhanced Efficiency, Reliability, and Stability,” Filed in August 2011.
  • Shuhui Li and Timothy A. Haskew, “Control of Permanent Magnet Synchronous Generator Wind Turbine,” US Patent App. 13/218,311, August 25, 2011.
  • Shuhui Li and Timothy A. Haskew, “Intelligent Power Converter Control for Grid Integration of Renewable Energies,” US Patent App. 13/257,799, March 29, 2010.
  • Shuhui Li and Timothy A. Haskew, “Converter Control of Variable Speed Wind Turbines,” Issued: International Application Number: PCT/US2008/062641, International Publication No. WO 2008/137836 A1, U.S. Provisional Patent Application No. 60/916,007.

Related publications and papers:
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Journals:

  • Huiying Zheng, Shuhui Li, Rajab Challoo and Dong Zhang, “Shading and Bypass Diode Impact to Energy Extraction of PV Arrays under Different Converter Configurations,” Renewable Energy – An International Journal (Elsevier), vol. 68, pp. 58-66, August 2014. 
  • Huiying Zheng, Shuhui Li, Timothy A. Haskew, and Yang Xiao, “Impact of Uneven Shading and Bypass Diode to Energy Extraction Characteristics of Solar Photovoltaic Cells, Modules and Arrays,” International Journal of Sustainable Energy, 32 (5), pp. 351-365, 2013.
  • Shuhui Li, Timothy A. Haskew, Keith A. Williams, and Richard P. Swatloski, “Control of DFIG Wind Turbine with Direct-Current Vector Control Configuration,” IEEE Transactions on Sustainable Energy, Vol. 3, No. 1, Jan. 2012, pp. 1-11. 
  • Shuhui Li and Timothy A. Haskew, “Wind Power Extraction and Control Study of DFIG Wind Turbine under Weibull Wind Distribution,” Alternative Energy, Vol. 1, No. 1, ACTA Press, 2012.
  • Shuhui Li, Timothy A. Haskew, Dawen Li and Fei Hu, “Integrating Photovoltaic and Power Converter Characteristics for Energy Extraction Study of Solar PV Systems,” Renewable Energy AN INTERNATIONAL JOURNAL (Elsevier), Vol. 36, Issue 12, Deecmber 2011, pp. 3238-3245.
  • Shuhui Li, Timothy A. Haskew, and Yang-Ki Hong, “Investigation of Maximum Wind Power Extraction using Adaptive Virtual Lookup Table Approach,” International Journal of Energy Research (John Wiley & Sons), Vol. 35, Issue 11, September 2011, pp. 929-1022. 
  • Shuhui Li, Tim Haskew, Rajab Challoo, and Marty J. Nemmers, “Wind Power Extraction of DFIG Wind Turbines Using Stator-Voltage and Stator-Flux Oriented Frames,” International Journal of Emerging Electric Power Systems, Vol. 12: Issue 3, Article 7. DOI: 10.2202/1553-779X.2676, June 2011.
  • Shuhui Li, Timothy A. Haskew, Yang-Ki Hong, and Shukul Mazari, “Integrating Electrical and Aerodynamic Characteristics for DFIG Wind Energy Extraction and Control Study,” International Journal of Energy Research (John Wiley & Sons), Vol. 34, Issue 12, October 2010, pp. 1052-1070.
  • Shuhui Li, Tim Haskew, and Eduard Muljadi, “DFIG Maximum Wind Power Extraction Study through Integrated Steady-State and Close-Loop Control Evaluation,” Electric Power Components and Systems (Taylor & Francis), Vol. 38, Issue 7, 2010, pp. 767-785. 
  • Shuhui Li, Tim Haskew, and Ling Xu, “Conventional and Novel Control Designs for Direct Driven PMSG Wind Turbines,” Electric Power System Research (Elsevier), Vol. 80, Issue 3, March 2010, pp. 328-338.
  • Shuhui Li, Tim Haskew, and Jeff Jackson, “Power Generation Characteristic Study of Integrated DFIG and Its Frequency Converter,” Renewable Energy AN INTERNATIONAL JOURNAL (Elsevier), Vol. 35, No. 1, Jan. 2010, pp. 42-51.
  • Shuhui Li, Tim Haskew, Eduard Muljadi and Cristina Serrentino, “Characteristic Study of Vector-Controlled Direct Driven Permanent Magnet Synchronous Generator in Wind Power Generation,” Electric Power Components and Systems (Taylor & Francis), Vol. 37, Iss. 10, October 2009, pp. 1162-1179.
  • Shuhui Li and Tim Haskew, “Simulation Analysis of DFIG Characteristics under d-q Control Strategies in Stator-Voltage-Oriented Frame,” International Journal of Power and Energy Systems, Vol. 29, No. 2, 2009, pp. 103-115.
  • Shuhui Li, Tim Haskew, and Rajab Challoo, “Steady-State Characteristic Study for Integration of DFIG Wind Turbines into Transmission Grid,” International Journal of Emerging Electric Power Systems, Vol. 10, Iss. 1, Article 7, DOI: 10.2202/1553-779X.1967, January 2009.
  • Shuhui Li and Tim Haskew, “Characteristic Study of Vector-Controlled Doubly-Fed Induction Generator in Stator-flux-oriented Frame,” Electric Power Components and Systems (Taylor & Francis), Vol. 36, Iss. 9, September 2008, pp. 990-1015.

Conferences:

  • Huiying Zheng and Shuhui Li, “Coordinated Control for Grid Integration of PV Array, Battery Storage, and Supercapacitor,” Proceedings of 2013 IEEE Power & Energy Society General Meeting, Vancouver, Canada, 21-25 July, 2013. 
  • Shuhui Li, Timothy A. Haskew, and Yang-Ki Hong, “Characteristic Study of Vector-Controlled Permanent Magnet Synchronous Motor in Electric Drive Vehicles,” Proceedings of 2012 IEEE PES Transmission and Distribution Conference and Exposition, Orlando FL, May 7-10, 2012. 
  • Huiying Zheng, Shuhui Li, Ke Bao, and Dong Zhang, “Comparative Study of Maximum Power Point Tracking Control Strategies for Solar PV Systems,” Proceedings of 2012 IEEE PES Transmission and Distribution Conference and Exposition, Orlando FL, May 7-10, 2012.
  • Shuhui Li and Huiying Zheng, “Energy Extraction Characteristic Study of Solar Photovoltaic Cells and Modules,” Proceedings of 2011 IEEE PES General Meeting, Detroit MI, July 24-28, 2011.
  • Shuhui Li and Ke Bao, “Study of Battery Modeling using Mathematical and Circuit Oriented Approaches,” Proceedings of 2011 IEEE PES General Meeting, Detroit MI, July 24-28, 2011.
  • Shuhui Li, Timothy A. Haskew, and Eduard Muljadi, “Integrative Characteristic Evaluation of DFIG Maximum Power Extraction using Lookup Table Approach,” Proceedings of 2010 IEEE PES General Meeting, Minneapolis, MN, July 26-29, 2010.
  • Shuhui Li, Rajab Challoo and Marty J. Nemmers, “Comparative Study of DFIG Power Control Using Stator-Voltage and Stator-Flux Oriented Frames,” Proceedings of 2009 IEEE PES General Meeting, Calgary Alberta, Canada, July 26-30, 2009.
  • Shuhui Li and Tim Haskew, “Energy Capture, Conversion, and Control Study of DFIG Wind Turbine under Weibull Wind Distribution,” Proceedings of 2009 IEEE PES General Meeting, Calgary Alberta, Canada, July 26-30, 2009.
  • Shuhui Li, Tim Haskew, and Shukul Mazari, “Integrating Electrical and Aerodynamic Characteristics for DFIG Speed Control Study,” Proceedings of IEEE PES 2009 Power Systems Conference and Exposition, Seattle, WA, March 15-18, 2009.
  • Shuhui Li and Tim Haskew, “Characteristic Study of Direct Driven PMSG Wind Turbine under General d-q Control Strategies,” Proceedings of 2008 IEEE PES (Power & Energy Society) General Meeting, Pittsburgh, PA, July 21-24, 2008.
  • Shuhui Li, Tim Haskew, and Jeff Jackson, “Power Generation Characteristic Study of Integrated DFIG and Its Frequency Converter,” Proceedings of 2008 IEEE PES (Power & Energy Society) General Meeting, Pittsburgh, PA, July 21-24, 2008.
  • Shuhui Li, Tim Haskew, and R. Challoo, “Characteristic Study for Integration of Fixed and Variable Speed Wind Turbines into Transmission Grid,” Proceedings of 2008 IEEE PES (Power & Energy Society) Transmission & Distribution Conference and Exposition, Chicago, IL, April 21-24, 2008.
  • Shuhui Li, Tim Haskew, and Ling Xu, “DFIG Characteristic and Control integration Study Under Decoupled d-q Vector Control in Stator Flux Oriented Frame,” Proceedings of The 4th IET International Conference on Power Electronics, Machines and Drives (PEMD 2008), York St John University College, York, UK, April 2-4, 2008.
  • Shuhui Li and Tim Haskew, “Simulation Study of Fixed Speed Wind Energy Conversion System and Compensation Using PSpice,” Proceedings of 9th IASTED International Conference on Power and Energy Systems (PES 2007), January 03 to January 05, 2007, at Clearwater FL, USA.
  • Shuhui Li and Sitanshu Sinha, “A Simulation Analysis of Double-Fed Induction Generator for Wind Energy Conversion Using PSpice,” in Proceedings of 2006 IEEE PES General Meeting, 18-22 June 2006, Montréal, Québec Canada.