Investigasi Strategi PODPWM dan APODPWM untuk Meminimalkan Total Harmonic Distortion pada Sistem Inverter Tiga Fasa

I Ketut Wiryajati, I Nyoman Wahyu Satiawan, Ni Made Seniari

Abstract


Penelitian ini membahas analisis kinerja dua strategi modulasi pulsa lebar (PWM), yaitu Phase Opposition Disposition PWM (PODPWM) dan Alternate Phase Opposition Disposition PWM (APODPWM), dalam upaya meminimalkan Total Harmonic Distortion (THD) pada sistem inverter tiga fasa. Simulasi dilakukan menggunakan MATLAB/Simulink dengan parameter identik untuk kedua metode, mencakup tegangan DC sebesar 100 V, frekuensi pembawa 5 kHz, dan beban R–L. Analisis dilakukan terhadap bentuk gelombang keluaran, spektrum harmonisa, dan nilai THD berdasarkan hasil Fast Fourier Transform (FFT). Hasil menunjukkan bahwa metode APODPWM secara konsisten menghasilkan nilai THD yang lebih rendah dibandingkan PODPWM pada seluruh rentang indeks modulasi. Pada Ma=1.0, THD PODPWM mencapai 10%, sedangkan APODPWM hanya 8,3%. Setelah diterapkan filter LC (L = 5 mH, C = 22 μF), nilai THD menurun drastis menjadi 2,1% untuk PODPWM dan 1,2% untuk APODPWM, memenuhi batas standar IEEE Std. 519-2014. Selain itu, APODPWM menunjukkan bentuk gelombang keluaran yang lebih halus dan nilai RMS tegangan yang lebih tinggi, menandakan efisiensi konversi daya yang lebih baik. Hasil penelitian ini menegaskan bahwa strategi APODPWM lebih unggul dalam menghasilkan kualitas daya yang tinggi pada inverter tiga fasa dan dapat diimplementasikan secara efektif pada sistem penggerak motor, konversi energi terbarukan, serta kendaraan listrik.


Keywords


Inverter tiga fasa;PODPWM;APODPWM;PWM;Total Harmonic Distortion (THD);Filter LC

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References


B. K. Bose, “Power Electronics in Smart Grid and Renewable Energy Systems,” vol. 105, no. 11, pp. 2011–2018, 2017, doi: 10.1109/JPROC.2017.2745621.

N. Hinov, “Smart Energy Systems Based on Next-Generation Power Electronic Devices,” Technol., vol. 12, no. 6, p. 78, 2024, doi: 10.3390/technologies12060078.

J. Swargiary and P. K. Choudhury, “Design and Simulation of Grid Connected Inverters for Solar Photovoltaic Applications,” Adv. Sci. Technol., 2023, doi: 10.4028/p-gn763x.[4] G. Xuan, W. Li, L. Dawei, J. Xu, X. Dong, and B. Sun, “Optimization of UPS Output Waveform Based on Single-Phase Bridge Inverter,” Springer, Cham, 2019, pp. 147–155. doi: 10.1007/978-3-030-31129-2_14.

C. Makdisie and M. F. Mariam, “Applied Power Electronics: Inverters, UPSs,” IGI Global, 2020, pp. 322–361. doi: 10.4018/978-1-7998-1230-2.CH017.

N. A. Ahmed and M. Faeq, “A Review of Single Phase Transformer-less Inverter Topologies for Grid-tied Photovoltaic System andControl Strategy Methods,” NTU J. Renew. Energy, vol. 7, no. 1, pp. 84–97, 2024, doi: 10.56286/m55ayy76.

M. R. Chowdhury, S. Chowdhury, M. R. Islam, A. M. M.-U. Razman, A. Z. Kouzani, and M. A. P. Mahmud, “An Improved Switching Control Technique for Single-Phase Voltage Source Inverter,” IEEE Int. Conf. Appl. Supercond. Electromagn. Devices, 2020, doi: 10.1109/ASEMD49065.2020.9276322.

K. Lakshmikhandan, A. Srinivasan, and M. Dharani, “Improved SPWM Modulation Technique to Reduce Harmonic Distortion in Voltage Source Converter,” Int. J. Innov. Sci. Res., vol. 25, no. 1, pp. 8–14, 2016, [Online]. Available: http://www.ijisr.issr-journals.org/abstract.php?article=IJISR-16-049-38

A. Alias, W. A. Halim, M. Azri, J. M. Lazi, and M. Z. Aihsan, “Analysis of cascaded H-Bridge multilevel inverters using SPWM with multi-sinusoidal reference,” Int. J. Power Electron. Drive Syst., vol. 16, no. 3, p. 1740, 2025, doi: 10.11591/ijpeds.v16.i3.pp1740-1751.

C. L. Kuppuswamy and T. A. Raghavendiran, “FPGA Implementation of Carrier Disposition PWM for Closed Loop Seven Level Diode Clamped Multilevel Inverter in Speed Control of Induction Motor,” 2018, [Online]. Available: http://nopr.niscair.res.in/bitstream/123456789/44946/1/JSIR 77%289%29 504-509.pdf

R. Sarker, “Phase Opposition Disposition PWM (POD-PWM) Strategy to Reduce WTHD Content from an NPC Inverter-Fed Electric Vehicle System,” IEEE India Conf., 2020, doi: 10.1109/INDICON49873.2020.9342352.

V. Chand, S. V Kumar, and R. Bhasker, “A APOD PWM based Seventeen level Inverter with less Total Harmonic Distortion,” pp. 1–6, 2023, doi: 10.1109/icccnt56998.2023.10307005.

Z. Gao, Y. Li, Q. Ge, K. Wang, M. Zhao, and J. Zhu, “Research on the Synchronized Carrier-Based PWM Strategy Under Low Switching Frequency for Three-Level Neutral Point Clamped Inverter,” Conf. Ind. Electron. Soc., pp. 4121–4126, doi: 10.1109/IECON43393.2020.9254800.

Z. Zhao, Y. Shao, L. Guo, and X. Qu, “Carrier phase-shifting pulse width modulation method.” 2014.

K. Bano, G. Abbas, M. Hatatah, E. Touti, A. Emara, and P. Mercorelli, “Phase Shift APOD and POD Control Technique in Multi-Level Inverters to Mitigate Total Harmonic Distortion,” Mathematics, vol. 12, no. 5. 2024. doi: 10.3390/math12050656.

C. R. Balamurugan, S. P. Natarajan, T. S. Anandhi, and B. Shanthi, “Simulation and Real Time Implementation of Various PWM Strategies for 3 Φ Multilevel Inverter Using FPGA,” vol. 6, no. 1, pp. 1–19, 2018, doi: 10.11591/IJRES.V6.I1.PP1-19.




DOI: http://dx.doi.org/10.30872/electrops.v4i2.22845

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