Monitoring Power Quality in Microgrids Based on Disturbances Propagation Algorithms

Abstract:

The paper shows how the surveying of power quality in microgrids working under unbalanced harmonic distorted operating states with possible voltage dips and voltage swells existence can be accomplished implying a small amount of time and measurement activities. The surveying methodology uses the disturbances propagation phenomenon to determine the power quality indices in all of interest nodes of the microgrid utilizing the voltages and currents characteristics in one or several strategic nodes. The disturbances propagation is based on the sequence component theory applied for all detected harmonics and for the microgrids components. The proposed surveying methodology was implemented in a virtual instrument capable to acquire the voltages and currents waveforms, to analyze them in order to identify the disturbances characteristics, to calculate the disturbances propagation and display the power quality indices in all of interest nodes of the microgrid. The virtual instrument was tested using several microgrid topologies and scenarios.

• Periodical: Advanced Engineering Forum (Volumes 8-9)
• Pages: 127-138
• DOI: https://doi.org/10.4028/www.scientific.net/AEF.8-9.127
• Online since: June 2013
• Authors: Anca Miron, Mircea D. Chindris, Andreas Sumper
• Keywords: Harmonics, Microgrids (MGs), Power Quality (PQ), Unbalance, Virtual Instrumentation, Voltage Dip, Voltage Swells

References

[1] N. Hatziargyriou, H. Asano, Microgrids: An Overview of Ongoing Research, Development, and Demonstration Projects, http: /eetd. lbl. gov/EA/EMP/emp-pubs. html, Last Accesed: June (2012).

[2] B. Lasseter, Microgrids and distributed energy resources, Sustainability Innovation Workshop, HP Laboratories, Wuhan, October (2008).

[3] Advanced architectures and control concepts for more microgrids, European project, coord. Nikos Hatziargyriou, ICCS Company, Finished in December 2009, www. microgrids. eu, Last Accesed: June (2012).

[4] T.L. Vandoorn, B. Renders, L. Degroote, B. Meersman and L. Vandevelde, Active load control in islanded microgrids based on the grid voltage, IEEE Trans. Smart Grid, 2(1) (2011) 139 – 151.

DOI: 10.1109/tsg.2010.2090911

[5] H. Chen, J. Chen, D. Shi and X. Duan, Power flow study and voltage stability analysis for distribution systems with distributed generation, IEEE Power Eng. Soc. General Meeting, Montreal, QC, Canada, (2006).

DOI: 10.1109/pes.2006.1709198

[6] W. Bo, W. Sheng, L. Hua and X. Hua, Steady-state model and power flow analysis of grid connected photovoltaic power system, Proc. IEEE Intern. Conf. Ind. Tech., (2008) 1–6.

[7] D. Shirmohammadi, H. Hong, A. Semlyen and G. Luo, A compensation-based power flow method for weakly meshed distribution and transmission networks, IEEE Trans. Power Syst., 3 (2), (1988) 753–762.

DOI: 10.1109/59.192932

[8] C. Cheng and D. Shirmohammadi, A three-phase power flow method for real-time distribution system analysis, IEEE Trans. Power Syst., 10 (2) (1995) 671–679.

DOI: 10.1109/59.387902

[9] J. Teng, A modified Gauss-Seidel algorithm of three-phase power flow analysis in distribution networks, Intern. J. Elect. Power Energy Syst., 24 (2) (2001) 97–102.

DOI: 10.1016/s0142-0615(01)00022-9

[10] J. Vieira, W. Freitas and A. Morelato, Phase-decoupled method for three-phase power-flow analysis of unbalanced distribution systems, Proceedings Inst. Elect. Eng. Generation, Transmission Distribution, 151 (5) (2004) 568–574.

DOI: 10.1049/ip-gtd:20040831

[11] V. Costa, M. Oliveira and M. Guedes, Developments in the analysis of unbalanced three-phase power flow solutions, Intern. J. Elect. Power Energy Syst., 29 (2) (2007) 175–182.

DOI: 10.1016/j.ijepes.2006.06.005

[12] K. Lo and C. Zhang, Decomposed three-phase power flow solution using the sequence component frame, Proc. Inst. Elect. Eng., Gen., Transm. Distrib., 140 (3) (1993) 181–188.

DOI: 10.1049/ip-c.1993.0028

[13] M. Abdel-Akher, K. Nor and A. Rashid, Improved three-phase power-flow methods using sequence components, IEEE Trans. Power Syst., 20 (3) (2005) 1389–1397.

DOI: 10.1109/tpwrs.2005.851933

[14] M. Abdel-Akher, K. Nor and A. Abdul-Rashid, Development of unbalanced three-phase distribution power flow analysis using sequence and phase components, in Proc. 12th Int. Middle-East Power System Conf., (2008) 406–411.

DOI: 10.1109/mepcon.2008.4562347

[15] M. Z. Kamh, R. Iravani, Unbalanced model and power flow analysis of microgrids and active distribution systems, IEEE Tran. Power Deliv., 25 (4) (2010) 2851 – 2858.

DOI: 10.1109/tpwrd.2010.2042825

[16] L.D. Zhang, M.H.J. Bollen, A method for characterizing unbalanced voltage dips (sags) with symmetrical components, IEEE Power Engineering Letters, (1998) 50-52.

[17] L.D. Zhang, Propagation of voltage sags in power systems, PhD. thesis, Department of Electric Power Engineering and Department of Signals and Systems, Chalmers University of Technology, Goteborg, Sweden, (2000).

[18] G. -R. Gillicha, D. Frunzaverdea, N. Gillicha and D. Amariei, The use of virtual instruments in engineering education, Procedia Social and Behavioral Sciences, 2 (2010) 3806–3810.

DOI: 10.1016/j.sbspro.2010.03.594

[19] G. Bucci, E. Fiorucci and C. Landi, Digital measurement station for power quality analysis in distributed environments, IEEE Transactions on Instrumentation and Measurement, 52 (1) (February 2003) 75 – 84.

DOI: 10.1109/tim.2003.809080

[20] A. López, J. -C. Montaño, M. Castilla, J. Gutiérrez, M. Dolores Borrás and J. C. Bravo, Power system frequency measurement under non-stationary situations, IEEE Trans. Power Deliv., 23 (2) (2008) 562 – 567.

DOI: 10.1109/tpwrd.2007.916018

[21] I. Orovi´c, M. Orlandi´c, S. Stankovi´c and Z. Uskokovi´c, A Virtual instrument for time-frequency analysis of signals with highly non-stationary instantaneous frequency, IEEE Trans. Instr. Measurement., 60 (3) (2011) 791 – 803.

DOI: 10.1109/tim.2010.2060227

[22] L. Ferrigno, C. Liguori and A. Pietrosanto, Measurements for the characterization of passive components in non-sinusoidal conditions, IEEE Trans. Instr. Measurement, 51 (6) (2002) 1252 – 1258.

DOI: 10.1109/tim.2002.807989

[23] J. -H. Teng, S. -Y. Chan, J. -C. Lee and R. Lee, A LabVIEW based virtual instrument for power analyzers, IEEE Proc. Intern. Conf. Power Syst. Tech., 1 (2000) 179-184.

DOI: 10.1109/icpst.2000.900052

[24] A. Monti, F. Ponci, S. Pelizzari and L. Cristaldi, A virtual instrument for time-frequency analysis of Park power components, J. Electr. Power Qual. Utilis., XIII (1) (2007) 121 – 128.

[25] W. Xinling and Z. Cheng, Design and simulation of voltage fluctuation rate monitor system based on virtual instrument technology, Energy Procedia, 17 (2012) 450 – 455.

DOI: 10.1016/j.egypro.2012.02.119

[26] F. Adamo, F. Attivissimo, G. Cavone and N. Giaquinto, SCADA/HMI systems in advanced educational courses, Proc. IEEE Instrum. Measur. Tech. Conf., IMTC 2005, 2 (2005) 1097 – 1101.

DOI: 10.1109/imtc.2005.1604312

[27] Clarke Edith, Analysis of power systems circuits, Technical Publishing House, (1973).

[28] A. Miron, M.D. Chindriş and A.C. Cziker, Harmonics and interharmonics analysis of power signals using Gaussian filter banks, Elect. Power Syst. Res., unpublished (submitted for publication).

DOI: 10.1109/upec.2014.6934606

[29] A. Miron, M.D. Chindriş and A.C. Cziker, Time domain analysis of voltage dips/swells in modern power networks, IET Gen., Transm. & Distr., unpublished (submitted for publication).

[30] A. Cziker, A. Miron and M. Chindris, Power quality indices for unbalance characterization in non‐sinusoidal condition, 14th Intern. Research/Expert Conf. Trends in the Development of Machinery and Associated Technology, TMT 2010, 11-18 September 2010, pp.481-484.

[31] A. Miron, M.D. Chindriş and A. Cziker, Voltage dips and swells quantification in harmonic unbalanced polluted power systems, unpublished.

[32] A. Cziker and A.C. Cziker, Exploitation of power station and substations, Science Book Publishing House, Cluj – Napoca, Romania, (2006).

[33] M.J. Heathcote, The J&P Transformer book, Twelfth edition, A practical technology of the power transformer, Leed Educational and Professional Publishing Ltd. 1998, Woburn, Great Britain.

[34] A.J. Pansini, Electrical distribution engineering, The Fairmont Press Inc., Great Britain, (2007).

[35] M. Chindriş, A. Sudria, A. Cziker and Anca Miron, Propagation of unbalance in electric power systems, 9th Intern. Conf. Electr. Power Qual. Utilis., EPQU'07, Barcelona, Spain, 9 – 11 October 2007, Session 4D – Improvement and distribution loads.

DOI: 10.1109/epqu.2007.4424221

[36] A. Miron, M. Chindriş and A. Cziker, Efficiency increase of power quality analysis using virtual instrumentation, WEC REGIONAL ENERGY FORUM – FOREN 2010, Neptun, 2010, paper s3-13-en.

[37] IEC 61000-4-30 Testing and Measurement Techniques – Power Quality Measurement Methods.