DOI: https://doi.org/10.15587/1729-4061.2016.74954

Analysis of exchange processes during parallel operation of wind electric units

Sergii Denysiuk, Darya Horenko

Abstract


Quality control of electric power is usually performed at the point of delimitation, and mutual influence of the elements of power systems and exchange processes between generators is not considered. But in the transition processes, transmission, accumulation or generation of exchange energy take place both between the supporting elements of the power system and between the generators. The influence of exchange processes on the load is compensated by special instruments and the quality of electricity from a consumer’s perspective is almost not affected. However, mutual overflows of energy, even with full compensation, will produce electromagnetic effect on the equipment (for example, magnetic circuit oversaturation) that would cause deterioration in the operating modes of generators, increasing losses, etc. All the above­said predetermines the need for analysis of exchange processes directly in the intersection of generation.

So the calculations were carried out of the exchange capacity during the work of two generators with different modes of operation and the influence of perturbations during the work of one generator was studied. We constructed corresponding graphic dependencies of the exchange capacity on the phase shift angle using MathCAD and Excel software applications. By analyzing graphic dependencies, the conclusions were drawn. Even with an active load, the overflows of inactive power in the system are present. We also defined by the graphs the optimal value of the phase shift angle, at which exchange capacity equals zero.

The conducted studies make it possible to carry out analysis and optimization of energy processes in dispersed electric power systems with different energy sources, to identify and minimize unwanted energy flows between the elements of the system, as well as to compensate for the mutual influence of various­type electric power sources, both traditional and non­traditional.

Keywords


electromagnetic compatibility of generators; renewable sources of electric power; inactive power of Frieze; exchange processes; exchange capacity

References


Artyukh, S., Mahatala, V., Sapelnikov, K. (2015). Preconditions for the creation of power generating nodes hybrid type on the basis of renewable energy. Scientific works of DonNTU, 1, 13–17.

Smart Grids Strategic Research Agenda (SRA) for RD&D1 needs towards 2035 “SmartGrids SRA 2035” (2012). European Technology Platform SmartGrids, 74. Available at: http://www.smartgrids.eu/documents/sra2035.pdf

Brown, E., Busche, S. (2008). State of the States 2008: Renewable Energy Development and the Role of Policy. Technical Report NREL/TP, 16–35. doi: 10.2172/1219298

Zhuikov, V., Denysiuk, S. (2010). Energy processes in electionic chains with the key elements. Kyiv: NTUU “KPI”, 264.

Zhezhelenko, I., Szydlowski, A., Pivnyak, G. et. al. (2012). Electromagnetic compatibility of consumers. Мoscow: Mashinostroenie, 351.

Kirilenko, A. V., Denisyuk, S. P., Rybina, A. B. (2007). The characteristics of electromagnetic compatibility in electrical networks of Ukraine. PR. Institute of electrodynamics of NAS of Ukraine, 1 (16), 27–30.

Ramie, J. (2013). Smart grid EMC standards harmonization. IEEE Electromagnetic Compatibility Magazine, 2 (4), 79–82. doi: 10.1109/memc.2013.6714704

Oliveira, P. M. D., Jesus, P. M., Castronuovo, E. D., Leao, M. T. (2008). Reactive Power Responseof Wind Generators Underan Incremental Network-Loss Allocation Approach. IEEE Transactions on Energy Conversion, 23 (2), 612–621. doi: 10.1109/tec.2007.914172

Verma, S. P., Kumar, P., Islam, N. (2012). Smart Grid, Its Power Quality and Electromagnetic Compatibility. MIT International Journal of Electrical and Instrumentation Engineering, 2 (1), 55–64.

Akagi, H., Watanabe, E. H., Aredes, M. (2007). Instantaneous Power Theory and Applications to Power Conditioning. New York: Wiley, 380. doi: 10.1002/0470118938

Czarnecki, L. S. (2006). Instantaneous Reactive Power p-q Theory and Power Properties of Three-Phase Systems. IEEE Transactions on Power Delivery, 21 (1), 362–367. doi: 10.1109/tpwrd.2005.852348

Zagirnyak, N. V., Rodkin, D. S. (2012). Analysis of processes of energy conversion in Electromechanical systems. Electromechanical and energy saving systems, 3, 30–36.

Zagirnyak, N. V., Rodkin, D. S., Chornuy, A. P., Korenkova, T. V. (2011). Directions of development of the theory of instantaneous power and its application in problems of electrical engineering. Electrical and computer systems, 3, 347–354.

Denysiuk, S. P. (2007). Analysis of mutual influence of elements of power system AC. PR. Institute of electrodynamics of NAS of Ukraine, 2, 13–17.

Kostin, N., Petrov, A. V. (2011). Methods of determining the components's total power in electric traction systems. Technical electrodynamics, 3, 53–59.

Zhemerov, G. G., Krylov, D. S., Tugaj, D. V. (2004). System components with full power and energy coefficients based on p-q-r power theory. Technical electrodynamics, thematic issue. Problems of modern electrical engineering, 1, 69–74.

Xu, L., Cartwright, P. (2006). Direct Activeand Reactive Power Control of DFIG for Wind Energy Generation. IEEE Transactions on Energy Conversion, 21 (3), 750–758. doi: 10.1109/tec.2006.875472

IEEE Standard Definition for the measurement of Electric Power Quantities under sinusoidal, nousinusoidal, balanced or unbalanced conditions (IEEE std. 1459ТМ – 2010) (2010). IEEE Power and Energy Society, New York.

Willems, J. L., Ghijselen, J. A., Emanuel, A. E. (2005). The Apparent Power Conceptand the IEEE standard 1459–2000. IEEE Transactions on Power Delivery, 20 (2), 876–884. doi: 10.1109/tpwrd.2005.844267

Gumerov, G. G., Ilyin, A. V. (2007). Theory of the power of the Frieze and the modern theory of power. Electrical engineering and Electromechanics, 6, 63–65.


GOST Style Citations


1. Artyukh, S. Preconditions for the creation of power generating nodes hybrid type on the basis of renewable energy [Text] / S. Artyukh, V. Mahatala, K. Sapelnikov // Scientific works of DonNTU. – 2015. – Issue 1. – P. 13–17.

2. Smart Grids Strategic Research Agenda (SRA) for RD&D1 needs towards 2035 “SmartGrids SRA 2035” [Text]. – European Technology Platform SmartGrid, 2012. – 74 p. – Available at: http://www.smartgrids.eu/documents/sra2035.pdf

3. Brown, E. State of the States 2008: Renewable Energy Development and the Role of Policy [Text] / E. Brown, S. Busche // Technical Report NREL/TP. – 2008. – P. 16–35. doi: 10.2172/1219298

4. Zhuikov, V. Energy processes in electionic chains with the key elements [Text] / V. Zhuikov, S. Denysiuk. – Kyiv: NTUU “KPI”, 2010. – 264 p.

5. Zhezhelenko, I. Electromagnetic compatibility of consumers [Text]: monograph / I. Zhezhelenko, A. Szydlowski, G. Pivnyak et. al. – Мoscow: Mashinostroenie, 2012. – 351 p.

6. Kirilenko, A. V. The characteristics of electromagnetic compatibility in electrical networks of Ukraine [Text]: coll. sciences. works / A. V. Kirilenko, S. P. Denisyuk, A. B. Rybina // PR. Institute of electrodynamics of NAS of Ukraine. – 2007. – Issue 1 (16). – P. 27–30.

7. Ramie, J. Smart grid EMC standards harmonization [Text] / J. Ramie // IEEE Electromagnetic Compatibility Magazine. – 2013. – Vol. 2, Issue 4. – P. 79–82. doi: 10.1109/memc.2013.6714704

8. Oliveira, P. M. D. Reactive Power Responseof Wind Generators Underan Incremental Network-Loss Allocation Approach [Text] / P. M. D. Oliveira, P. M. Jesus, E. D. Castronuovo, M. T. Leao // IEEE Transactions on Energy Conversion. – 2008. – Vol. 23, Issue 2. – P. 612–621. doi: 10.1109/tec.2007.914172

9. Verma, S. P. Smart Grid, Its Power Quality and Electromagnetic Compatibility [Text] / S. P. Verma, P. Kumar, N. Islam // MIT International Journal of Electrical and Instrumentation Engineering. – 2012. – Vol. 2, Issue1. – P. 55–64.

10. Akagi, H. Instantaneous Power Theory and Applications to Power Conditioning [Text] / H. Akagi, E. H. Watanabe, M. Aredes. – New York: Wiley, 2007. – 380 p. doi: 10.1002/0470118938

11. Czarnecki, L. S. Instantaneous Reactive Power p-q Theory and Power Properties of Three-Phase Systems [Text] / L. S. Czarnecki // IEEE Transactions on Power Delivery. – 2006. – Vol. 21, Issue 1. – P. 362–367. doi: 10.1109/tpwrd.2005.852348

12. Zagirnyak, N. V. Analysis of processes of energy conversion in Electromechanical systems [Text] / N. V. Zagirnyak, D. S. Rodkin // Electromechanical and energy saving systems. – 2012. – Issue 3. – P. 30–36.

13. Zagirnyak, N. V. Directions of development of the theory of instantaneous power and its application in problems of electrical engineering [Text] / N. V. Zagirnyak, D. S. Rodkin, A. P. Chornuy, T. V. Korenkova // Electrical and computer systems. – 2011. – Issue 3. – P. 347–354.

14. Denysiuk, S. P. Analysis of mutual influence of elements of power system AC [Text]: coll. sciences. works / S. P. Denysiuk // PR. Institute of electrodynamics of NAS of Ukraine. – 2007. – Issue 2. – P. 13–17.

15. Kostin, N. Methods of determining the components's total power in electric traction systems [Text] / N. Kostin, A. V. Petrov // Technical electrodynamics. – 2011. – Issue 3. – P. 53–59.

16. Zhemerov, G. G. System components with full power and energy coefficients based on p-q-r power theory [Text] / G. G. Zhemerov, D. S. Krylov, D. V. Tugaj // Technical electrodynamics, thematic issue. Problems of modern electrical engineering. – 2004. – Issue 1. – P. 69–74.

17. Xu, L. Direct Activeand Reactive Power Control of DFIG for Wind Energy Generation [Text] / L. Xu, P. Cartwright // IEEE Transactions on Energy Conversion. – 2006. – Vol. 21, Issue 3. – P. 750–758. doi: 10.1109/tec.2006.875472

18. IEEE Standard Definition for the measurement of Electric Power Quantities under sinusoidal, nousinusoidal, balanced or unbalanced conditions (IEEE std. 1459ТМ – 2010) [Text]. – IEEE Power and Energy Society, New York, 2010.

19. Willems, J. L. The Apparent Power Conceptand the IEEE standard 1459–2000 [Text] / J. L. Willems, J. A. Ghijselen, A. E. Emanuel // IEEE Transactions on Power Delivery. – 2005. – Vol. 20, Issue 2. – P. 876–884. doi: 10.1109/tpwrd.2005.844267

20. Gumerov, G. G. Theory of the power of the Frieze and the modern theory of power [Text] / G. G. Gumerov, A. V. Ilyin // Electrical engineering and Electromechanics. – 2007. – Issue 6. – P. 63–65.







Copyright (c) 2016 Sergii Denysiuk, Darya Horenko

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ISSN (print) 1729-3774, ISSN (on-line) 1729-4061