Publications

Most Significant Contributions

Full Referred Journals

Reviewed Conferences

Patents

               

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Most Significant Contributions

J2.         C.K. Sao, P.W. Lehn, "Control and Power Management of Converter Fed Microgrids", accepted by the IEEE Trans. on  Power Systems, Jan. 2008 , 9 pages.

J3.         P.W. Lehn, K.L. Lian, “Frequency coupling matrix of a voltage source converter derived from piecewise linear differential equations”, IEEE Trans. On Power Delivery, vol. 22, no. 3, July 2007, pp. 1603-1612.

C9.        J. Bebic, P.W. Lehn, M.R. Iravani, "The hybrid power flow controller - A new concept for flexible AC transmission", IEEE Power  Engineering Society General Meeting, Montreal, Canada, June 2006, 

J16.      J. Mossoba, P.W. Lehn, "A controller architecture for high bandwidth active power filters", IEEE Transactions on Power Electronics, vol. 18, no. 1, Jan. 2003, pp. 317-325. 

J20.      D. Shen, P.W. Lehn, "Fixed-frequency space-vector-modulation control for three-phase four-leg active power filters", IEE Proceedings-Electric Power Applications, vol. 149, no. 4, July 2002, pp. 268-274. 

 

 

Full Refereed Journals (published/accepted)

J1.         K.L. Lian, B.K. Perkins, P.W. Lehn, "Harmonic analysis of a three-phase diode bridge rectifier based on sampled-data model", accepted by the IEEE Trans. on  Power Delivery, Aug. 2007, 9 pages.

J2.         C.K. Sao, P.W. Lehn, "Control and Power Management of Converter Fed Microgrids", accepted by the IEEE Trans. on  Power Systems, Jan. 2008 , 9 pages.

J3.         P.W. Lehn, K.L. Lian, “Frequency coupling matrix of a voltage source converter derived from piecewise linear differential equations”, IEEE Trans. On Power Delivery, vol. 22, no. 3, July 2007, pp. 1603-1612.

J4.         Testa, A.; Akram, M. F.; Burch, R.; Carpinelli, G.; Chang, G.; Dinavahi, V.; Hatziadoniu, C.; Grady, W. M.; Gunther, E.; Halpin, M.; Lehn, P.; Liu, Y.; Langella, R.; Lowenstein, M.; Medina, A.; Ortmeyer, T.; Ranade, S.; Ribeiro, P.; Watson, N.; Wikston, J.; Xu, W., “Interharmonics: Theory and Modeling”, IEEE Trans. On Power Delivery, vol. 22, no. 4, Oct. 2007, pp. 2335-2348.

J5.         B.G. Rawn, P.W. Lehn, M. Maggiore, “Control methodology to mitigate the grid impact of wind turbines”, IEEE Trans. on Energy Conversion, vol. 22, no. 2, June 2007, pp. 413-438.

J6.         F. Katiraei, M.R. Iravani, P.W. Lehn, “Small signal dynamic model of a micro-grid including conventional and electronically interfaced distributed resources”, IET Generation, Transmission & Distribution, vol. 1, no. 3, May 2007, pp. 369-378.

J7.         K.L. Lian, P.W. Lehn, “Steady-state solution of a voltage source converter with full closed-loop control”, IEEE Trans. on Power Delivery, vol. 21, no. 4, Oct. 2006, pp. 2071-2081.

J8.         D. Dolan, P.W. Lehn, "Simulation model of wind turbine 3p torque oscillations due to wind shear and tower shadow", IEEE Trans. on Energy Conversion, vol. 21, no. 3, Sept. 2006, pp. 717-724.

J9.         E. Wu, P.W. Lehn, "Digital current control of a voltage source converter with active damping of LCL resonance", IEEE Trans. on Power Electronics, vol. 21, no. 5, Sept. 2006, pp. 1364-1373.

J10.      A. Pradhan, P.W. Lehn, "Frequency domain analysis of the static synchronous series compensator", IEEE Trans. on Power Delivery, vol. 21, no. 1, Jan. 2006, pp. 440-449.

J11.      C.K. Sao, P.W. Lehn, "Autonomous Load Sharing of Voltage Source Converters", IEEE Transactions on Power Delivery, vol. 20, no. 2, April 2005, pp. 1009-1016. A. Pradhan, P.W. Lehn, "Frequency domain analysis of the static synchronous series compensator", IEEE Trans. on Power Delivery, vol. 21, no. 1, Jan. 2006, pp. 440-449

J12.      R. K.-L. Lian, P.W. Lehn, "Real Time Simulation of Voltage Source Converters based on Time Average Method", IEEE Transactions on Power Systems, vol. 20, no. 1, Feb 2005, pp. 110-118.

J13.      F. Katiraei, M.R. Iravani, P.W. Lehn, "Micro-grid autonomous operation during and subsequent to islanding process", IEEE Transactions on Power Delivery, vol. 20, no. 1, Jan. 2005, pp. 248-257.

J14.      E. Lavers, P.W. Lehn, et. al. "A benchmark system for digital time domain simulation of an active power filter", IEEE Transactions on Power Delivery, vol. 20, no. 1, Jan. 2005, pp. 234-241.

J15.      P.W. Lehn, "Direct harmonic analysis of the voltage source converter", IEEE Transactions on Power Delivery, vol. 18, no. 3, July 2003, pp. 1034-1042. 

J16.      J. Mossoba, P.W. Lehn, "A controller architecture for high bandwidth active power filters", IEEE Transactions on Power Electronics, vol. 18, no. 1, Jan. 2003, pp. 317-325. 

J17.      J.Z. Bebic, P.W. Lehn, M.R. Iravani, "P-delta characteristics for the unified power flow controller-analysis inclusive of equipment ratings and line limits",  IEEE Transactions on Power Delivery, vol. 18, no. 3, July 2003, pp. 1066-1072.

J18.      C.K. Sao, P.W. Lehn, M.R. Iravani, J.A. Martinez, "A benchmark system for digital time-domain simulation of a pulse-width-modulated D-STATCOM", IEEE Transactions on Power Delivery, vol. 17, no. 4, Oct. 2002, pp. 1113-1120.

J19.      D.A.N. Jacobson, P.W. Lehn, R.W. Menzies, "Stability domain calculations of period-1 ferroresonance in a nonlinear resonant circuit", IEEE Transactions on Power Delivery, vol. 17, no. 3, July 2002, pp. 865-871.

J20.      D. Shen, P.W. Lehn, "Fixed-frequency space-vector-modulation control for three-phase four-leg active power filters", IEE Proceedings-Electric Power Applications, vol. 149, no. 4, July 2002, pp. 268-274.

J21.      P.W. Lehn, "Exact Modeling of the Voltage Source Converter", IEEE Transactions on Power Delivery, vol. 17, no. 1, Jan. 2002, pp. 217-222.

J22.      D. Shen, P.W. Lehn, "Modeling, Analysis and Control of a Current Source Inverter Based STATCOM", IEEE Transactions on Power Delivery, vol. 17, no. 1, Jan. 2002, pp. 248-253.

J23.      H. Mokhtari, M.R. Iravani, S.B. Dewan, P.W. Lehn, J.A. Martinez, "Benchmark Systems for Digital Computer Simulation of a Static Transfer Switch", IEEE Transactions on Power Delivery, vol. 16, no. 4, Oct. 2001, pp. 724-731.

J24.      P.W. Lehn, M.R. Iravani, "Discrete Time Modelling and Control of the Voltage Source Converter for Improved Disturbance Rejection", IEEE Trans. on Power Electronics, Vol. 14, no. 6, Nov. 1999, pp.1028-1036.

J25.      A. Sonnenmoser, P.W. Lehn, "Line Current Balancing with a Unified Power Flow Controller", IEEE Trans. on Power Delivery, vol. 14, no. 3, July 1999, pp. 1151-1157.

J26.      P.W. Lehn, M.R. Iravani, "Experimental Evaluation of STATCOM Closed Loop Dynamics", IEEE Trans. on Power Delivery, vol. 13, no. 4, Oct. 1998, pp. 1378-1384.

J27.      P. Lehn, J. Rittiger, B. Kulicke, "Comparison of the ATP Version of the EMTP and the NETOMAC Program for Simulation of HVDC Systems", IEEE Trans. on Power Delivery, Oct. 1995, pp. 2048-2053. 

 

Refereed Conference Papers

C1.        J.W.G. Hwang, P.W. Lehn, M. Winkelnkemper, "Control of Grid Connected AC-DC Converters with Minimized DC Link Capacitance under Unbalanced Grid Voltage Condition", European Power Electronics Conference, Aalborg, Denmark, Sept. 2007, 10 pages. 

C2.        D. Dolan, P.W. Lehn, "Analysis of a virtual air gap variable reactor", IEEE PESC, June 2007, 5 pages. 

C3.        J.W.G. Hwang, M. Winkelnkemper, P.W. Lehn, "Design of an optimal stationary frame controller for grid connected ac-dc converters", IEEE Industrial Electronics Conference, Paris, France, Nov. 2006, 6 pages. 

C4.        P.W. Lehn, G. Ebner, "Harmonic modelling of thyristor bridges using a simplified time domain method", IEEE International Conference on Harmonics and Quality of Power, Cascais, Portugal, Oct. 2006, 6 pages. 

C5.        D. Dolan, C.K. Sao, P.W. Lehn, "Voltage flicker model of wind turbine generators due to wind shear and tower shadow", Porceeding of the CIGRE Canada Conference on Power Systems, Montreal, Oct. 2006,   

C6.        J.W.G. Hwang, M. Winkelnkemper, P.W. Lehn, "Control of AC-DC-AC converters with minimized dc link capacitance under grid distortion", IEEE Int. Symposium on Industrial Electronics, Montreal, Canada, July 2006, 6 pages. 

C7.        R. K.-L. Lian, P.W. Lehn, "Harmonic analysis of single-phase full bridge rectifiers based on a fast time domain method", IEEE Int. Symposium on Industrial Electronics, Montreal, Canada, July 2006, 5 pages. 

C8.        J. Li, P.W. Lehn, "Sampled-data Modeling and control of the slow switching single phase voltage source converter", IEEE Int. Symposium on Industrial Electronics, Montreal, Canada, July 2006, 

C9.        J. Bebic, P.W. Lehn, M.R. Iravani, "The hybrid power flow controller - A new concept for flexible AC transmission", IEEE Power  Engineering Society General Meeting, Montreal, Canada, June 2006, 

C10.      C. K. Sao, P. W. Lehn, "Intentional islanded operation of converter fed networks", IEEE Power  Engineering Society General Meeting, Montreal, Canada, June 2006, 6 pages. 

C11.      B. Rawn, P. W. Lehn, M. Maggiore, "Toward controlled wind farm output: adjustable power filtering", IEEE Power Engineering Society General Meeting, Montreal, Canada, June 2006, 6 pages. 

C12.      C.K. Sao, P.W. Lehn, "A block diagram approach to reference frame transformation of converter dynamic models", CCECE, Ottawa, May 2006, 6 pages. 

C13.      C.K. Sao, D. Dolan, P.W. Lehn, "Lightning exposure of wind turbine generators", CCECE, Ottawa, Canada, May 2006, 6 pages. 

C14.      D. Dolan, P.W. Lehn, "Real time wind turbine emulator suitable for power quality and dynamic control studies", International Conference on Power Systems Transients, 2005, 6 pages. 

C15.      E. Wu, P.W. Lehn, "Digital current control of a voltage source converter with active damping of LCL resonance", Applied Power Electronics Conference, 2005, 8 pages. 

C16.      P. W. Lehn, "A Benchmark System for Simulation of the D-STATCOM", IEEE Power Engineering Society Winter Meeting, 2002, Volume 1, pp. 496-498. 

C17.      P. Lehn, "Sensitivity to Simulation Method for Power Electronics Circuits", IEEE Power Engineering Society Winter Meeting, 2001, Volume: 2, pp. 801-802.     

 

Patents

A. Patents Issued

P1.        J. Bebic, P.W. Lehn, Hybrid Power Flow Controller and Method”, U.S. Patent No. 6,963,187, Nov. 8, 2005.

 

Most Significant Contributions

Full Referred Journals

Reviewed Conferences

Patents

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Last Update: January 5, 2008