ELIMINATION OF HARMONIC COMPONENTS IN SOLAR SYSTEM WITH L AND LC PASSIVE FILTERS

Abstract

As a result of the increase in the use of power electronics-based converters (DC/DC to DC/AC) and non-linear loads, harmonic components occur in the solar networks. It is quite common to use passive LC and L filters to eliminate harmonics in the solar PV systems. The solar system analyzed and modeled consists of solar panels, DC boost converter, PWM controlled solar inverter and six pulsed uncontrolled rectifier. Six pulse uncontrolled rectifier used as load in off-grid solar system produces 5th, 7th, 11th, 13th etc. harmonic components. LC and L filters are used to reduce the solar inverter output current total harmonic distortion (THDI). In the solar system, the THDI value has been reduced to the limit values given by the standards.. LC and L filters are commonly used to eliminate harmonics in solar system. Their widespread use is due to their easy structure and control. Modeling and simulation of the stand-alone PV power system was carried out with Matlab/Simulink program. While the value of THDI was reduced from 91.55% to 2.62% with the LC filter, the value of THDI was reduced to 5.73% with the L filter. It has been observed that the performance of the LC in eliminating the harmonic components is better than the L filter. As a result, LC filter improves both the system efficiency and reduce the THDI value.

Keywords

• : L filter
• LC filter
• Solar Inverter
• Off-Grid Solar System
• Total Harmonic Distortion

References

1. Liu, Q., Peng, L., Kang, Y. S., Tang, D., Wu, L. and Qi, Y., A novel design and optimization method of an LCL filter for a shunt active power filter,” IEEE Trans. Ind. Electron., 61(2014), 8, pp. 4000–4010.
2. Haydaroğlu, C., & Gümüş, B. (2017). Investigation of the effect of short term environmental contamination on energy production in photovoltaic panels: Dicle University solar power plant example. Applied Solar Energy, 53(20017), 1, pp. 31-34
3. Rüstemli, S., Okuducu, E., Efe, S. B., Elektrik Tesislerinde Harmoniklerin Pasif Filtre Kullanılarak Azaltılması ve Simülasyonu, EVK2015, Enerji Verimliliği Kalitesi Sempozyumu, 6(2015), pp.120-124, 4-6 Haziran, Sakarya.
4. Cangi, H., Adak, S., Analysis of solar inverter THD according to PWM’s carrier frequency, IEEE Xplore Digital Library, DOI 10.1109/ICRERA. (2015), 7418694, INSPEC Accession no:15807201.
5. Ozdemir, A. Ferikoglu, A., Low cost mixed-signal microcontroller based power measurement technique, IEE Proceedings-Science Measurement And Technology, 151(2004), pp.253-258, ISSN : 1350-2344 - DOI : 10.1049/ip-smt:20040242 - JUL - - Article - - 2004 - WOS:000222969400004.
6. Malla, S. G., Bhende, C.N., Elsevier: International Journal of Electrical Power & Energy Systems, 56 (2014), pp. 361-373.
7. San-Sebastian, J., Etxeberria-Otadui, I. A., Rujas, Barrena, J. A. and Rodriguez, P. (2012). Optimized LCL filter design methodology applied to MV grid-connected multimegawatt VSC, in Energy Conversion Congress and Exposition (ECCE), IEEE, (2012) , pp. 2506-2512.
8. TavakoliBina, M., and Pashajavid, E., An efficient procedure to design passive LCL filters for active power filters, Electric Power Systems Research, 79(2009), 4, pp. 606–614.

9. Muhlethaler, J., Schweizer, M. Blattmann, R. J., Kolar, W. and Ecklebe, A. (2013). Optimal design of LCL harmonic filters for three-phase PFC rectifiers, Power Electronics, IEEE Transactions on, 28(2013), 7, pp. 3114-3125.
10. Sekkeli, M., Tarkan N., Development of a novel method for optimal use of a newly designed reactive power control relay. International Journal of Electrical Power and Energy Systems, 44 (2013), pp.736-742.
11. Arifoğlu, U., Matlab9.1-Simulink ve Mühendislik Uygulamaları, Alfa Yayıncılık, 964p. İstanbul-Turkey, 2016.
12. Liserre, M., Blaabjerg, and Hansen, S. Design and Control of an LCL-Filter-Based Three-Phase Active Rectifier, IEEE Transactions on Industry Applications, 41(2005), 5, pp. 1281-1291.
13. Adak, S., Cangi, H., Analysis and Simulation Total Harmonic Distortion of Output Voltage Three Level Diode Clamped Inverter in Photovoltaic System, Bitlis Eren University, Fen Bilimleri Dergisi, (2015). ISSN 2147-3129.
14. Yilmaz, A. S., Alkan, A, and H. Asyali, M., Applications of parametric spectral estimation methods on detection of power system harmonics, Electric Power Systems Research, 78, Issue 4, , (2008), pp. 683-693.
15. Jayaraman, M., Sreedevi, V.T, and Balakrishnan, R., Analysis and Design of Passive Filters for Power Quality Improvement in Standalone PV Systems, Nirma University International Conference on Engineering (NUICONE),(2013), DOI: 10.1109/NUiCONE.2013.6780164.
16. Adak, S., Harmonics Mitigation of Stand Alone Photovoltaic System Using LC Passive Filter, Journal of Electrical Engineering & Technology, (2021), https://doi.org/10.1007/s42835-021-00777-7
17. Motahhir, S., El Hammoumi, A., El Ghzizal, A., Photovoltaic system with quantitative comparative between an improved MPPT and existing INC and P&O methods under fast varying of solar irradiation. Energy Rep 5(2019), pp.341–350
18. Mustafa Ergin Şahin, E.M., Halil İbrahim Okumuş, I.H., Güneş Pili Modülünün Matlab/Simulink ile Modellenmesi ve Simülasyonu Modeling and Simulation of Solar Cell Module in Matlab/Simulink, EMO Bilimsel Dergi, 382013),5, pp.17-25
19. Tan, R.H.G., Tai, P.LJ., Mok, V.H., Solar irradiance estimation based on photovoltaic module short circuit current measurement. In: IEEE international conference on smart instrumentation, measurement and applications (ICSIMA), (2015). https://doi.org/10.1109/PVSC.2015.7355816
20. Karabacak, M., Kiliç, F., Saraçoğlu, B., Boz, A.F., Ferikoğlu A., Şebeke Bağlantılı Eviriciler için LLCL Filtre Tasarımı; Detaylı Bir Performans Analizi, Politeknik Dergisi, 19(2016), 3, pp. 251-260
21. Bhonsle, D.C., Kelkar, R.B., Harmonic pollution survey and simulation of passive flter using Matlab. In: International conference on recent advancements in electrical, electronics and control engineering (ICONRAEeCE), Sivakasi, (2011), pp 230–236
22. Adak, S., • Cangi, H., •Eid, B., Yilmaz, A.S., Developed analytical expression for current harmonic distortion of the PV system’s inverter in relation to the solar irradiance and temperature, Electrical Engineering, 103 (2021), pp. 697–704, https://doi.org/10.1007/s00202-020-01110-7
23. Shuhui Li, S., Fu, X., Ramezani, M., Sun, Y., Hoyun Won A novel direct-current vector control technique for single-phase inverter with L, LC and LCL filters, Electric Power Systems Research, 125 (2015), pp. 225-244