Maximal reactive power compensation using loaded synchronous motors Ioan Dragos DEACONU, Aurel Ionut CHIRILÃ, Constantin GHITÃ, Valentin NÃVRÃPESCU   2017/04/25

Abstrac

The paper presents an intelligent system that aims to maximum possible compensate the level of the reactive power within a given power grid, usually present at factory sites or large electric vehicles such as ships. The novelty consists in the compensation method, which is performed using the already existing synchronous machines operating as motors below rated load. It is presented the control algorithm of the motor in order to achieve the maximum reactive power compensation and an example of an automated system implementation is provided.

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Key word

Synchronous motor, reactive power compensation, automated monitoring and control system

References

[1] A. Novitskiy, I. Konotop, D. Westermann, Design of Reactive Power Compensations Devices on the Base of
Dynamical Simulation of Steelmaking Process, International Conference on Renewable Energies and Power Quality (ICREPQ'13), Bilbao, Spain, 2013;
[2] K. Dezan, E. Belic, G. Stumberger, Benefits that could be achieved by a proper reactive power generation in small photovoltaic systems operating inside low voltage distribution network, International Conference on
Renewable Energies and Power Quality (ICREPQf15) La Coruna (Spain), 2015;
[3] I. Vokony, Reactive Power- and Voltage Regulation in Micro Grids, International Conference on Renewable Energies and Power Quality (ICREPQf12), RE&PQJ, Vol.1, No.10, April 2012, pp. 1519-1523;
[4] R. S. Herrera, P. Salmeron, J. R. Vazquez, S. P. Litran, Instantaneous Reactive Power Theory: A New Approach Applied to N Wire Systems, International Conference on Renewable Energies and Power Quality (ICREPQ 2007), RE&PQJ, Vol. 1, No.5, March 2007;
[5] M. K. T. Khaing, Power Factor Correction with Synchronous Condenser for Power Quality Improvement in Industrial Load, International Journal of Science and Engineering Applications, Volume 3, Issue 3, 2014;
[6] C. Ghita, A. Craciunescu, V. Navrapescu, I. D. Deaconu, A. I. Chiril., I. D. Ilina, Optimal reactive power compensation using synchronous generators, International Conference of Renewable Energies and Power Quality (ICREPQ'10), Granada, Spain, 2010;
[7] G. Sulligoi, A. Vicenzutti, R. Menis, All-Electric Ship Design: From Electrical Propulsion to Integrated Electrical and Electronic Power Systems, IEEE Transactions on transportation electrification, vol. 2, no. 4, December 2016;
[8] On-line catalog AEM - Anhaltische Elektromotorenwerk Dessau GmbH, http://www.aemdessau.de/en/products/three-phase-motors/synchronous.html;
[9] D. Deaconu, A. Chirila, C. Ghita, Electrical Machines and Drives vol. 1,2, Printech, Bucuresti, Romania (2015), ISBN 978-606-23-0369-3;
[10] A. Hadar, C. Marin, C. Petre, A. Voicu, Numerical methods in Engineering, Politehnica Press, Bucuresti,
Romania (2004);
[11] M. R. Buneci, Numerical methods, Academic Press Brancusi, Targu Jiu, 2009;
[12] DC Marine, Technical notes of interest to Marine Engineers - Ship's electrical system described, January 2000;
[13] E. Skjong, E. Rodskar, M. Molinas, T. Johansen, J. Cunningham, The Marine Vesselfs Electrical Power System: From its Birth to Present Day, IEEE Proceeding, Vol. 103, No. 12, December 2015.