EPE  Vol.11 No.7 , July 2019
Performance Optimization of Diesel Generators Using Permanent Magnet Synchronous Generator with Rotating Stator
Abstract: One of the solutions to reduce fuel consumption of diesel generators (DG) is to adapt the rotational speed to mechanical torque of the crankshaft. When load power decreases, a reduction in both mechanical torque and rotational speed of the diesel engine will maintain the combustion efficiency near the levels of the nominal regime. Accordingly, the generator itself should operate at a variable speed which normally requires power electronics converters. In this paper, we are exploring a new generator concept that uses a stator rotating in opposite direction to the rotor such as the relative velocity between the two components remains constant when diesel engine slows down. The stator itself is driven by a compensator synchronous motor (CM) such as the relative velocity of the rotor is constant, eliminating as such sophisticated power electronics. The model developed for the synchronous machine with a rotating stator is based on Park’s transformation. This new concept was modelled using MATLAB software. Experimental analysis has been conducted using a 500-kW diesel GENSET equipped with a permanent magnet synchronous generator (PMSG). The numerical and experimental results are in good agreement and demonstrate that fuel consumption is reduced with a rotating-mode stator for PMSG during low electrical loads.
Cite this paper: Mobarra, M. , Issa, M. , Rezkallah, M. and Ilinca, A. (2019) Performance Optimization of Diesel Generators Using Permanent Magnet Synchronous Generator with Rotating Stator. Energy and Power Engineering, 11, 259-282. doi: 10.4236/epe.2019.117017.

[1]   Ibrahim, H., et al. (2011) Optimization of Diesel Engine Performances for a Hybrid Wind-Diesel System with Compressed Air Energy Storage. Energy, 36, 3079-3091.

[2]   Basbous, T., et al. (2015) Optimal Management of Compressed Air Energy Storage in a Hybrid Wind-Pneumatic-Diesel System for Remote Area’s Power Generation. Energy, 84, 267-278.

[3]   Cristóbal Monreal, I. and Dufo-López, R. (2016) Optimisation of Photovoltaic-Diesel-Battery Stand-Alone Systems Minimising System Weight. Energy Conversion and Management, 119, 279-288.

[4]   Karimi, E. and Kazerani, M. (2017) Impact of Renewable Energy Deployment in Canada’s Remote Communities on Diesel Generation Carbon Footprint Reduction. IEEE 30th Canadian Conference on Electrical and Computer Engineering, Windsor, 30 April-3 May 2017, 1-5.

[5]   Nejabatkhah, F., et al. (2018) Optimal Design and Operation of a Remote Hybrid Microgrid. CPSS Transactions on Power Electronics and Applications, 3, 3-13.

[6]   Saad, Y., et al. (2017) Study of an Optimized Wind-Diesel Hybrid System for Canadian Remote Sites. IEEE Electrical Power and Energy Conference, Saskatoon, 22-25 October 2017, 1-6.

[7]   Benhamed, S., et al. (2016) Dynamic Modeling of Diesel Generator Based on Electrical and Mechanical Aspects. IEEE Electrical Power and Energy Conference, Ottawa, 12-14 October 2016, 1-6.

[8]   Rezkallah, M., et al. (2016) Control of Small-Scale Wind/Diesel/Battery Hybrid Standalone Power Generation System Based on Fixed Speed Generators for Remote Areas. 42nd Annual Conference of the IEEE Industrial Electronics Society, Florence, 23-26 October 2016, 4060-4065.

[9]   McGowan, D.J., Morrow, D.J. and Fox, B. (2006) Integrated Governor Control for a Diesel-Generating Set. IEEE Transactions on Energy Conversion, 21, 476-483.

[10]   Ibrahim, H., et al. (2010) Optimizing the Efficiency of a Diesel Engine for a Hybrid Wind-Diesel Experimental Validation. Victoria Univ., Victoria.

[11]   Ibrahim, H., et al. (2010) Study and Design of a Hybrid Wind-Diesel-Compressed Air Energy Storage System for Remote Areas. Applied Energy, 87, 1749-1762.

[12]   Leuchter, J., et al. (2007) Dynamic Behavior of Mobile Generator Set with Variable Speed and Diesel Engine. IEEE Power Electronics Specialists Conference, Orlando, 17-21 June 2007, 2287-2293.

[13]   Mohamad Issa, M.M., Ibrahim, H. and Ilinca, A. (2018) Modeling and Optimization of the Energy Production Based on Eo-Synchro Application. Power Engineer, 21, 3-9.

[14]   Deng, J., et al. (2011) Fuel Path Control of a Diesel Engine at the Operating Point of the Low Load and Medium Speed. Chinese Control and Decision Conference, Mianyang, 23-25 May 2011, 747-751.

[15]   Ibrahim, H., et al. (2007) Study of a Hybrid Wind-Diesel System with Compressed Air Energy Storage. IEEE Canada Electrical Power Conference, Montreal, 25-26 October 2007, 320-325.

[16]   Waris, T. and Nayar, C.V. (2008) Variable Speed Constant Frequency Diesel Power Conversion System Using Doubly Fed Induction Generator (DFIG). IEEE Power Electronics Specialists Conference, Rhodes, 15-19 June 2008, 2728-2734.

[17]   Brace, C., et al. (1999) An Operating Point Optimizer for the Design and Calibration of an Integrated Diesel/Continuously Variable Transmission Powertrain. Proceedings of the Institution of Mechanical Engineers Part D Journal of Automobile Engineering, 213, 215-226.

[18]   Fiset, J. and Tony, D. (2008) United States Patent & Trademark Office—Patent No. US8258641B2: Mechanical Regulation of Electrical Frequency in an Electrical Generation System. 1.

[19]   Fiset, J. (2010) Canadian Intellectual Property Office—Patent No. 2697420: Mechanical Regulation of Electrical Frequency in an Electrical Generation System. W.I.P. Organization, 1.

[20]   Fiset, J. and Tony, D. (2008) Australian Patent—Patent No. 2008291635: Mechanical Regulation of Electrical Frequency in an Electrical Generation System.

[21]   Mohamad Issa, M.M., Fiset, J. and Ilinca, A. (2017) Optimizing the Performance of a 500 KW Diesel Generator: Impact of the Eo-Synchro Concept on Fuel Consumption and Greenhouse Gases. Power Engineer, 21, 22-31.

[22]   Barakat, A., et al. (2010) Analysis of Synchronous Machine Modeling for Simulation and Industrial Applications. Simulation Modelling Practice and Theory, 18, 1382-1396.

[23]   Ibrahim, H., et al. (2012) Wind-Diesel Hybrid System: Energy Storage System Selection Method. 12th International Conference on Energy Storage, Leida, 16-18 May 2012, 10.

[24]   Krause, P.C., et al. (2002) Analysis of Electric Machinery and Drive Systems. Wiley, Hoboken.

[25]   Ong, C.-M. (1997) Dynamic Simulations of Electric Machinery: Using MATLAB/SIMULINK.

[26]   Fedák, V., Balogh, T. and Záskalicky, P. (2012) Dynamic Simulation of Electrical Machines and Drive Systems Using MATLAB GUI. In: Katsikis, V., Ed., MATLAB: A Fundamental Tool for Scientific Computing and Engineering Applications, IntechOpen, London, 317-342.

[27]   Arrillaga, J.A. and Harker, B. (1983) Computer Modelling of Electrical Power Systems. John Wiley & Sons, Inc., Hoboken.

[28]   Bui, M.X., et al. (2018) A Modified Sensorless Control Scheme for Interior Permanent Magnet Synchronous Motor over Zero to Rated Speed Range Using Current Derivative Measurements. IEEE Transactions on Industrial Electronics, 66, 102-113.

[29]   Kundur, P., Balu, N.J. and Lauby, M.G. (1994) Power System Stability and Control. Vol. 7, McGraw-Hill, New York.

[30]   Liu, M. and Zhang, X. (2013) Simulation of AC Excitation Field Orientation Control for Hybrid Excitation Synchronous Generator. Proceedings of 2013 2nd International Conference on Measurement, Information and Control, Harbin, 16-18 August 2013, 879-882.

[31]   Katiraei, F. and Abbey, C. (2007) Diesel Plant Sizing and Performance Analysis of a Remote Wind-Diesel Microgrid. IEEE Power Engineering Society General Meeting, Tampa, 24-28 June 2007, 1-8.

[32]   Kiper, D. (2017) CATERPILLAR—Diesel Generator Chart 2017.

[33]   Sheet, G.S.C.D. (2017) Approximate Diesel Fuel Consumption Chart.