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 re duction 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 lo w electrical loads.
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. https://doi.org/10.1016/j.energy.2011.02.053
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. https://doi.org/10.1016/j.energy.2015.02.114
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. https://doi.org/10.1016/j.enconman.2016.04.050
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. https://doi.org/10.1109/CCECE.2017.7946740
Nejabatkhah, F., et al. (2018) Optimal Design and Operation of a Remote Hybrid Microgrid. CPSS Transactions on Power Electronics and Applications, 3, 3-13. https://doi.org/10.24295/CPSSTPEA.2018.00001
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. https://doi.org/10.1109/EPEC.2017.8286137
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. https://doi.org/10.1109/EPEC.2016.7771756
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. https://doi.org/10.1109/IECON.2016.7793057
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. https://doi.org/10.1109/TEC.2006.874247
Ibrahim, H., et al. (2010) Optimizing the Efficiency of a Diesel Engine for a Hybrid Wind-Diesel Experimental Validation. Victoria Univ., Victoria.
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. https://doi.org/10.1016/j.apenergy.2009.10.017
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. https://doi.org/10.1109/PESC.2007.4342366
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.
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. https://doi.org/10.1109/CCDC.2011.5968281
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. https://doi.org/10.1109/EPC.2007.4520350
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. https://doi.org/10.1109/PESC.2008.4592357
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. https://doi.org/10.1243/0954407991526810
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.
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.
Fiset, J. and Tony, D. (2008) Australian Patent—Patent No. 2008291635: Mechanical Regulation of Electrical Frequency in an Electrical Generation System.
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.
Barakat, A., et al. (2010) Analysis of Synchronous Machine Modeling for Simulation and Industrial Applications. Simulation Modelling Practice and Theory, 18, 1382-1396. https://doi.org/10.1016/j.simpat.2010.05.019
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.
Krause, P.C., et al. (2002) Analysis of Electric Machinery and Drive Systems. Wiley, Hoboken. https://doi.org/10.1109/9780470544167
Ong, C.-M. (1997) Dynamic Simulations of Electric Machinery: Using MATLAB/SIMULINK.
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. https://doi.org/10.5772/48519
Arrillaga, J.A. and Harker, B. (1983) Computer Modelling of Electrical Power Systems. John Wiley & Sons, Inc., Hoboken.
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. https://doi.org/10.1109/TIE.2018.2823663
Kundur, P., Balu, N.J. and Lauby, M.G. (1994) Power System Stability and Control. Vol. 7, McGraw-Hill, New York.
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. https://doi.org/10.1109/MIC.2013.6758101
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. https://doi.org/10.1109/PES.2007.386275
Kiper, D. (2017) CATERPILLAR—Diesel Generator Chart 2017.