Voltage Spectral Structure as a Parameter of System Technical Diagnostics of Ship Diesel Engine-Synchronous Generators
DOI:
https://doi.org/10.1515/ecce-2015-0005Keywords:
Diesel engines, Generators, Torque measurement, Vibration measurementAbstract
A method of technical diagnostics of ship diesel engine – generator installation – is proposed. Spectral-power diagnostic parameters of the synchronous generator voltage and currents are used. The electric machine in this case is the multipurpose sensor of diagnostic parameters. A judgment on the quality of the operational processes in diesel engine cylinders and its technical condition is possible on the basis of these parameters. This method is applicable to piston compressor installations with electric drive. On the basis of such parameters as rotating torque, angular speed and angular acceleration it is possible to estimate the quality of the operating process in the cylinders of a diesel engine, the condition of its cylinder-piston group and the crank gear mechanism. The investigation was realized on the basis of a diesel-generator with linear load. The generator operation was considered for the case of constant RL load. Together with the above mentioned, the condition of bearings of synchronous machines, uniformity of the air gap, windings of the electric machine were estimated during the experiments as well. The frequency spectrum of the stator current of the generator was researched and analyzed. In this case the synchronous machine is becoming a rather exact multipurpose diagnostic sensor. The signal of non-uniformity in the operation process of diesel engine cylinders and its technical condition is the increasing of the amplitudes of typical frequencies.References
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J. Son et al. “Detecting the crankshaft torsional vibration of diesel engines for combustion related diagnosis,” J. of Sound and Vibration, vol. 321, issues 3–5, 2009, pp. 1171–1185. http://dx.doi.org/10.1016/j.jsv.2008.10.024
T. Lus, “Marine diesel engine diagnostics in operating conditions,” Diagnostika – applied structural health usage and condition monitoring, 2(62), 2012 pp. 43–47.
T. Lus, “Vibro-acoustic methods in marine diesel engines diagnostics,” J. of KONES Powertrain and Transport, vol. 18, no. 3, 2011.
A. F. Gogin, E. F. Kivalkin and A. A. Bogdanov, “Ship diesel engines (Bases of the theory, the device and operation),” M.: Transport, 1988. (in Russian).
V. V. Lahanin, “Designing and calculation on durability of ship steam machines. River transport,” 1955. (in Russian).
A. I. Vazhnov, “Alternating current machinery in transient regimes,” L.: Energy. 1980. (in Russian).
A. Gasparjan, A. Terebkov and M. Terebkova, “The Use of Results of Spectral Analysis of Synchronous Generator Output Voltage for Technical Diagnostics,” IEEE Int. Conf. Ind. Technology, ICIT 2006, 2006, pp. 2085–2090. http://dx.doi.org/10.1109/icit.2006.372566
A. Gasparjans and A. Terebkovs, “Kuģa enerģetiskās iekārtas daudzfunkcionalā diagnostikas sistēma.” “Multifunction Diagnostics System of Ship Power Installations,” Rīgas tehniskās universitātes zinātniskie raksti. 4. sērija, Enerģētika un elektrotehnika. Rīga: RTU, 16. sējums, 2006, 163.–166. lpp. ISSN 1407-7345.
J. Greivulis, A. Gasparian and A. Terebkov, “Complex diagnostic system of ship electrical machines,” in Proc. Int. Conf. on Electric Ship, ELECSHIP 98, Istanbul, Turkey, Istanbul: Middle East Technical University Turkey, Sept. 1, 1998, pp. 56–58.
Y. Greivulis, A. Gasparian and A. Terebkov, “Control Device of Electrical Machines Insulation Parameters of Ship Power Systems,” Int. Aegean Conf. on Electrical Machines and Power Electronics, IEEE-Acemp 2001, Middle East Technical University. Turkey, Kusadasi, 27–29 June 2001, pp. 544–545. ISBN 975-93410-0-X.
A. Gasparjans and A. Terebkovs, “Kuga energetiskas iekartas daudzfunkcionala diagnostikas Sistema,” “Multifunction Diagnostics System of Ship Power Installations,” RTU 46. Starptautiska zinatniska konference. Riga, 13.–15. okt. 2005. ISSN 1407-7345.
St. Polanowski and T. Lus, “Monitoring and diagnostic systems of marine diesel engines,” 9th TC-10 IMECO Conference, Wroclaw, 1999, 9 p.
J-C. Trigeassou, Electrical Machines Diagnosis, Wiley-ISTE. 2011. 334 p. http://dx.doi.org/10.1002/9781118601662
C. Hui, W. Peili and Z. Jundong, “Modeling and Simulation of Working Process of Marine Diesel Engine with a Comprehensive Method,” Int. J. of Computer Information Systems and Industrial Management Applications, vol. 5, 2013, pp. 480–487.
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01.07.2015
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Copyright (c) 2015 Aleksandrs Gasparjans, Aleksandrs Terebkovs, Anastasia Zhiravetska (Author)
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Gasparjans, A., Terebkovs, A., & Zhiravetska, A. (2015). Voltage Spectral Structure as a Parameter of System Technical Diagnostics of Ship Diesel Engine-Synchronous Generators. Electrical, Control and Communication Engineering, 8(1), 37-42. https://doi.org/10.1515/ecce-2015-0005
