Improving quality of electricity generated by grid-tied inverters in solar power plants in low generated power mode using frequency adaptive PWM
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Oleksandr Plakhtii
, Volodymyr Nerubatskyi Candidate of technical sciences (PhD) in the field of power electronics, associate professor. Specialist in computer simulations of power converters, methods of analytical analysis of power loss parameters in power switches and methods of transmitting electricity to a grid with a power factor close to unity, as well as active compensation of current harmonics and reactive power. , Volodymyr Ivakhno Candidate of technical sciences (PhD) in the field of power electronics, associate professor. Specialist in computer simulations of power converters. and Volodymyr Zamaruiev Doctor of Technical Sciences, Professor in the field of power electronics. Specialist in the field of DC/DC converters with improved energy performance, which is the subject of his doctoral dissertation. Candidate of technical sciences (PhD), professor in the field of power electronics. Specialist in the field of control systems, digital filtering, computer simulation.
Abstract
The article presents the results of a study of the dependence of the quality indicators of electricity generated by solar power plants in three-phase electrical networks on the level of generated power. In the course of the study, it was established that when the generated power is reduced, the grid voltage inverters that are part of the solar power plants cause an increase in the share of higher harmonic currents to the electric grid. An analysis of international standards regarding the quality requirements of the generated current was performed, which showed that when the level of generated power decreases, the quality of electric energy decreases and may not meet the requirements of the standard. The algorithm of frequency-adaptive pulse-width modulation is proposed, which allows to improve the quality indicators of the electricity generated by the grid inverter of the voltage of the solar power plant to the electrical grid.
Zusammenfassung
Die Qualitätsindikatoren des von Solarkraftwerken in dreiphasigen Stromnetzen erzeugten Stroms werden in Abhängigkeit von der Höhe der erzeugten Leistung untersucht. Es zeigt sich, dass Netzspannungswechselrichter in Solarkraftwerken bei abnehmender erzeugter Leistung zu einem Anstieg des Anteils höherer Oberschwingungsströme im Stromnetz führen. Es wird eine Analyse internationaler Qualitätsstandards für erzeugten Strom durchgeführt. Es zeigt sich, dass die Qualität der elektrischen Energie mit abnehmender erzeugter Leistung abnimmt und möglicherweise nicht den Anforderungen der Norm entspricht. Es wird ein Algorithmus zur frequenzadaptiven Pulsweitenmodulation vorgeschlagen. Dieser ermöglicht es, die Qualität des von netzgekoppelten Spannungswechselrichtern eines Solarkraftwerks erzeugten Stroms in das Stromnetz zu verbessern.
Funding source: European Union
Award Identifier / Grant number: 871072
About the authors

Candidate of technical sciences (PhD) in the field of power electronics, associate professor. Specialist in computer simulations of power converters, methods of analytical analysis of power loss parameters in power switches and methods of transmitting electricity to a grid with a power factor close to unity, as well as active compensation of current harmonics and reactive power.

Candidate of technical sciences (PhD) in the field of power electronics, associate professor. Specialist in computer simulations of power converters.

Doctor of Technical Sciences, Professor in the field of power electronics. Specialist in the field of DC/DC converters with improved energy performance, which is the subject of his doctoral dissertation.

Candidate of technical sciences (PhD), professor in the field of power electronics. Specialist in the field of control systems, digital filtering, computer simulation.
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Research ethics: Not applicable.
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Informed consent: Not applicable.
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Author contributions: The authors have accepted responsibility for the entire content of this manuscript and approved its submission.
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Use of Large Language Models, AI and Machine Learning Tools: None declared.
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Conflict of interest: The authors state no conflict of interest.
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Research funding: This investigation has received funding through the EURIZON project, which is funded by the European Union under grant agreement No. 871072.
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Data availability: Not applicable.
References
[1] O. Plakhtii, V. Nerubatskyi, and D. Hordiienko, “Research of operating modes and features of integration of renewable energy sources into the electric power system,” in 2022 IEEE 8th International Conference on Energy Smart Systems (ESS), Kyiv, Ukraine, 2022, pp. 133–138.10.1109/ESS57819.2022.9969337Search in Google Scholar
[2] T. Kurbatova and T. Perederii, “Global trends in renewable energy development,” in 2020 IEEE KhPI Week on Advanced Technology (KhPIWeek), Kharkiv, Ukraine, 2020, pp. 260–263.10.1109/KhPIWeek51551.2020.9250098Search in Google Scholar
[3] R. V. Zaitsev, V. R. Kopach, M. V. Kirichenko, E. O. Lukyanov, G. S. Khrypunov, and V. N. Samofalov, “Single-crystal silicon solar cell efficiency increase in magnetic field,” Funct. Mater., vol. 17, no. 4, pp. 554–557, 2010.Search in Google Scholar
[4] V. Nerubatskyi, O. Plakhtii, D. Hordiienko, and H. Khoruzhevskyi, “Study of the energy parameters of the system “solar panels – solar inverter – electric network”,” IOP Conf. Ser. Earth Environ. Sci., vol. 1254, pp. 1–13, 2023. https://doi.org/10.1088/1755-1315/1254/1/012092.Search in Google Scholar
[5] N. Mia, S. Das, M. Hossain, and N. Ahmed, “A review on feasibility of solar based renewable energy: a projection up to 2050,” in 2020 IEEE International Conference on Technology, Engineering, Management for Societal Impact Using Marketing, Entrepreneurship and Talent (TEMSMET), Bengaluru, India, 2020, pp. 1–6.10.1109/TEMSMET51618.2020.9557402Search in Google Scholar
[6] E. Wesoff and M. V. Olano, “Clean energy journalism for a cooler tomorrow,” Canary Media, 2023, [Online]. Available at: https://www.canarymedia.com/articles/solar/chart-solar-installations-set-to-break-global-us-records-in-2023 [accessed: Aug. 10, 2024].Search in Google Scholar
[7] S. M. Ahsan, H. A. Khan, A. Hussain, S. Tariq, and N. A. Zaffar, “Harmonic analysis of grid-connected solar PV systems with nonlinear household loads in low-voltage distribution networks,” Sustainability, vol. 13, no. 7, p. 3709, 2021. https://doi.org/10.3390/su13073709.Search in Google Scholar
[8] D. Cernusca, C. Ungureanu, R.-D. Pentiuc, E. Hopulele, and T. Pop, “Analysis of the operation of solar micro-inverters,” Еmerg – Energy Environ. Effic. Resour. Glob., vol. VIII, no. 4, pp. 93–102, 2022. https://doi.org/10.37410/emerg.2022.4.06.Search in Google Scholar
[9] I. Lutsenko, N. Rukhlova, M. Kyrychenko, P. Tsyhan, and V. Panchenko, “Increasing the energy efficiency of modes of distribution networks with photovoltaic stations,” Bull. Natl. Min. Univ., vol. 1, pp. 99–106, 2023, https://doi.org/10.33271/nvngu/2023-1/099.Search in Google Scholar
[10] O. Plakhtii, V. Nerubatskyi, I. Ryshchenko, O. Zinchenko, S. Tykhonravov, and D. Hordiienko, “Determining additional power losses in the electricity supply systems due to current’s higher harmonics,” E. Eur. J. Enterprise Technol., vols. 1/8, no. 97, pp. 6–13, 2019. https://doi.org/10.15587/1729-4061.2019.155672.Search in Google Scholar
[11] S. L. Gundebommu, I. Hunko, O. Rubanenko, and V. Kuchanskyy, “Assessment of the power quality in electric networks with wind power plants,” in 2020 IEEE 7th International Conference on Energy Smart Systems (ESS), Kyiv, Ukraine, 2020, pp. 190–194.10.1109/ESS50319.2020.9160231Search in Google Scholar
[12] V. Arangarajan, A. Aziz, K. S. V. Swarna, and A. Stojcevski, “Power quality impacts in a typical microgrid,” in International Conference on Sustainable Energy and Environmental Engineering (SEEE 2015) Vol: Advances in Engineering Research, 2015, pp. 77–82.Search in Google Scholar
[13] Y. Sokol, R. Tomashevskyi, K. Kolisnyk, and T. Bernadskaya, “Improving the method of interference holography to determine the state of plasma membranes,” in 2019 IEEE 39th International Conference on Electronics and Nanotechnology (ELNANO), Kyiv, Ukraine, 2019, pp. 159–163.10.1109/ELNANO.2019.8783675Search in Google Scholar
[14] V. P. Nerubatskyi, O. A. Plakhtii, D. V. Tugay, and D. A. Hordiienko, “Method for optimization of switching frequency in frequency converters,” Nauk. Visn. Nat. Hirn. Univ., vol. 1, pp. 103–110, 2021, https://doi.org/10.33271/nvngu/2021-1/103.Search in Google Scholar
[15] M. Mohamadi, E. Roshandel, S. M. Gheasaryan, and P. Khoshkalamyan, “Stability and power factor improvement in a power system with simultaneous generation of steam and solar power plant,” in 2016 6th Conference on Thermal Power Plants (CTPP), Tehran, Iran, 2016, pp. 83–88.10.1109/CTPP.2016.7483058Search in Google Scholar
[16] A. S. Samosir, S. Purwiyanti, H. Gusmedi, and M. Susanto, “Design of DC to DC converter for solar photovoltaic power plant applications,” in 2021 International Conference on Converging Technology in Electrical and Information Engineering (ICCTEIE), Bandar Lampung, Indonesia, 2021, pp. 132–137.10.1109/ICCTEIE54047.2021.9650639Search in Google Scholar
[17] E. Koutroulis, K. Kalaitzakis, and N. C. Voulgaris, “Development of a microcontroller-based, photovoltaic maximum power point tracking control system,” IEEE Trans. Power Electron., vol. 16, no. 1, pp. 46–54, 2001. https://doi.org/10.1109/63.903988.Search in Google Scholar
[18] C. R. Sullivan and M. J. Powers, “A high-efficiency maximum power point tracker for photovoltaic arrays in a solar-powered race vehicle,” in Proceedings of IEEE Power Electronics Specialist Conference – PESC ’93, Seattle, WA, USA, 1993, pp. 574–580.10.1109/PESC.1993.471984Search in Google Scholar
[19] M. Veerachary, T. Senjyu, and K. Uezato, “Maximum power point tracking of coupled inductor interleaved boost converter supplied PV system,” IEE Proc. Elect. Power Appl., vol. 150, no. 1, pp. 71–80, 2003. https://doi.org/10.1049/ip-epa:20020686.10.1049/ip-epa:20020686Search in Google Scholar
[20] O. Plakhtii, V. Tsybulnyk, V. Nerubatskyi, and N. Mittsel, “The analysis of modulation algorithms and electromagnetic processes in a five-level voltage source inverter with clamping diodes,” in 2019 IEEE International Conference on Modern Electrical and Energy Systems (MEES), Kremenchuk, Ukraine, 2019, pp. 294–297.10.1109/MEES.2019.8896567Search in Google Scholar
[21] O. Plakhtii, V. Nerubatskyi, I. Khomenko, V. Tsybulnyk, and A. Syniavskyi, “Comprehensive study of cascade multilevel inverters with three level cells,” in 2020 IEEE 7th International Conference on Energy Smart Systems (ESS), Kyiv, Ukraine, 2020, pp. 277–282.10.1109/ESS50319.2020.9160258Search in Google Scholar
[22] S. Asapu, L. Juttiga, D. Bhuvaneswari, S. S. Adabala, P. Apireddi, and A. Bale, “Implementation of seven-level asymmetrical multilevel inverter for solar PV application,” in International Conference on Distributed Computing and Optimization Techniques (ICDCOT), Bengaluru, India, 2024, pp. 1–5.10.1109/ICDCOT61034.2024.10516167Search in Google Scholar
[23] C. Hu, Y. Wang, S. Luo, and F. Zhang, “State-space model of an inverter-based micro-grid,” in 2018 3rd International Conference on Intelligent Green Building and Smart Grid (IGBSG), Yilan, Taiwan, 2018, pp. 1–7.10.1109/IGBSG.2018.8393525Search in Google Scholar
[24] Z. Dong and Y. Yu, “A comparison of discrete-time complex vector current regulators at low frequency ratio,” in 2017 IEEE Transportation Electrification Conference and Expo, Asia-Pacific (ITEC Asia-Pacific), Harbin, China, 2017, pp. 1–5.10.1109/ITEC-AP.2017.8080898Search in Google Scholar
[25] Q. Zhao, H. Zhang, W. Song, X. Li, and Q. Yang, “Regulator reconstruction strategy of grid-connected inverter in weak grid,” in 2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia), Hefei, 2016, pp. 451–457.10.1109/IPEMC.2016.7512328Search in Google Scholar
[26] K. Javed, L. Vandevelde, and F. De Belie, “Efficiency and Transfer function calculation of the buck-boost converter with ideal flow control,” in 2021 23rd European Conference on Power Electronics and Applications (EPE’21 ECCE Europe), Ghent, Belgium, 2021, pp. 1–10.10.23919/EPE21ECCEEurope50061.2021.9570503Search in Google Scholar
[27] G. Qin, X. Luo, Q. Chen, and L. Zhang, “Predictive controller design and simulation for a 50kW three-phase grid-tied inverter,” in 2017 29th Chinese Control and Decision Conference (CCDC), Chongqing, China, 2017, pp. 1447–1451.10.1109/CCDC.2017.7978745Search in Google Scholar
[28] F. Raziya, M. Afnaz, S. Jesudason, I. Ranaweera, and H. Walpita, “MPPT technique based on perturb and observe method for PV systems under partial shading conditions,” in 2019 Moratuwa Engineering Research Conference (MERCon), Moratuwa, Sri Lanka, 2019, pp. 474–479.10.1109/MERCon.2019.8818684Search in Google Scholar
[29] A. V. S. Moreira, A. de Souza Lima, A. L. Maitelli, and L. S. Barros, “An adaptive perturb and observe method with clustering for photovoltaic module with smart bypass diode under partial shading,” in 2019 IEEE PES Innovative Smart Grid Technologies Conference – Latin America (ISGT Latin America), Gramado, Brazil, 2019, pp. 1–6.10.1109/ISGT-LA.2019.8895317Search in Google Scholar
[30] D. Verma, S. Nema, and R. K. Nema, “Implementation of perturb and observe method of maximum power point tracking in SIMSCAPE/MATLAB,” in 2017 International Conference on Intelligent Sustainable Systems (ICISS), Palladam, India, 2017, pp. 148–152.10.1109/ISS1.2017.8389387Search in Google Scholar
[31] Y. Zhu, M. Kim, and H. Wen, “Simulation and analysis of perturbation and observation-based self-adaptable step size maximum power point tracking strategy with low power loss for photovoltaics,” Energies, vol. 12, no. 1, p. 92, 2019. https://doi.org/10.3390/en12010092.Search in Google Scholar
[32] A. Patel and R. Singh, “Power quality improvement in grid connected solar energy for harmonic analysis,” in 2022 IEEE International Conference on Data Science and Information System (ICDSIS), Hassan, India, 2022, pp. 1–5.10.1109/ICDSIS55133.2022.9915883Search in Google Scholar
[33] O. P. Mahela, S. Agarwal, and N. K. Saini, “Power quality improvement in hybrid power system using synchronous reference frame theory based distribution static compensator with battery energy storage system,” in 2019 International Conference on Computing, Power and Communication Technologies (GUCON), New Delhi, India, 2019, pp. 25–30.Search in Google Scholar
[34] O. Rubanenko, I. Hunko, O. Rubanenko, and A. Rassõlkin, “Influence of solar power plants on 0.4 kV consumers,” in 2019 IEEE 60th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON), Riga, Latvia, 2019, pp. 1–5.10.1109/RTUCON48111.2019.8982257Search in Google Scholar
© 2024 Walter de Gruyter GmbH, Berlin/Boston
Articles in the same Issue
- Frontmatter
- Editorial
- Resilient energy supply in times of crises and transition
- Methods
- Batteries for fast frequency containment response: market impacts on outage dynamics
- Synthesis of speed controllers by the polynomial equations method for an unstable electromechanical object
- Optimal power dispatch in microgrids using mixed-integer linear programming
- Review on peak detect and hold circuits and their applicability in partial discharge detection
- Applications
- Analysis of the degree of correlation of spatial distribution of electricity theft and exogenous variables: case study of Florianopolis, Brazil
- Linear transverse flux generator for wave energy conversion: design optimization and analysis
- Improving quality of electricity generated by grid-tied inverters in solar power plants in low generated power mode using frequency adaptive PWM
- Survey
- Regional marketing mechanisms for industrial energy flexibility enabled by service-oriented IT platforms
Articles in the same Issue
- Frontmatter
- Editorial
- Resilient energy supply in times of crises and transition
- Methods
- Batteries for fast frequency containment response: market impacts on outage dynamics
- Synthesis of speed controllers by the polynomial equations method for an unstable electromechanical object
- Optimal power dispatch in microgrids using mixed-integer linear programming
- Review on peak detect and hold circuits and their applicability in partial discharge detection
- Applications
- Analysis of the degree of correlation of spatial distribution of electricity theft and exogenous variables: case study of Florianopolis, Brazil
- Linear transverse flux generator for wave energy conversion: design optimization and analysis
- Improving quality of electricity generated by grid-tied inverters in solar power plants in low generated power mode using frequency adaptive PWM
- Survey
- Regional marketing mechanisms for industrial energy flexibility enabled by service-oriented IT platforms