Mitigation of Voltage Sag and Harmonic Distortion in Weak Industrial Microgrids Using Adaptive STATCOM: A Case Study of the Gafsa Phosphate Mining Complex, Tunisia
Anahtar Kelimeler:
power quality- voltage sag- NPC inverterÖz
Here is the English version, condensed to under 200 words while retaining all technical data, metrics, and case-study details: Industrial microgrids in remote mining environments often operate under weak-grid conditions ($SCR < 5$), amplifying voltage sags during motor starting and causing variable-frequency drive (VFD) harmonics to exceed the IEEE 519-2022 $THD_V$ limit of 8% at the point of common coupling (PCC). This paper presents an adaptive Static Synchronous Compensator (STATCOM) designed for the 30 kV microgrid at the Compagnie des Phosphates de Gafsa (CPG) mining complex in Tunisia. The system utilizes a three-level neutral-point-clamped (NPC) converter regulated by an adaptive proportional-integral (API) scheme. Controlled by a Lyapunov-stability-based adaptation law, it eliminates the need for offline tuning. MATLAB/Simulink simulations, calibrated with CPG field data, demonstrate that during the direct-on-line starting of a 2.4 MW crusher motor, voltage sags recover from 0.72 p.u. to 0.98 p.u. within 18 ms. Furthermore, $THD_V$ drops from 11.3% to 2.8%, achieving IEEE 519-2022 compliance. Compared to fixed-gain PI STATCOMs, active and reactive power transient overshoot is reduced by 31%, validating the architecture's performance under weak-grid conditions.
Referanslar
[1] I. Khan, A. S. Vijay, and S. Doolla, "Nonlinear load harmonic mitigation strategies in microgrids: State of the art," IEEE Syst. J., vol. 16, no. 3, pp. 4243–4255, Sep. 2021.
[2] S. Wang, Y. Ma, K. Sun, J. Wang, H. Li, L. M. Tolbert, and F. Wang, "Modeling and control of variable speed drive based loads for grid primary frequency support," IEEE Trans. Power Del., vol. 38, no. 2, pp. 1219–1230, Apr. 2023.
[3] European Bank for Reconstruction and Development (EBRD), "Project CAPSA – Compagnie des Phosphates de Gafsa: Board Report," EBRD, London, UK, 2023. [Online]. Available: https://www.ebrd.com/content/dam/ebrd_dxp/documents/project/55930/Board_Report_Project_CAPSA.pdf
[4] M. K. Saini and R. Beniwal, "Detection and classification of power quality disturbances in wind energy integrated system using fast time-frequency transform and small residual-extreme learning machine," Int. Trans. Elect. Energy Syst., vol. 28, no. 4, pp. e2519, Apr. 2018.
[5] Y. Xu and F. Li, "Adaptive PI control of STATCOM for voltage regulation," IEEE Trans. Power Del., vol. 29, no. 3, pp. 1002–1011, Jun. 2014.
[6] I. Khan, A. S. Vijay, and S. Doolla, "Nonlinear load harmonic mitigation strategies in microgrids: State of the art," IEEE Syst. J., vol. 16, no. 3, pp. 4243–4255, Sep. 2021.
[7] IEEE Recommended Practice and Requirements for Harmonic Control in Electric Power Systems, IEEE Standard 519-2022, Jun. 2022.
[8] N. Jaalam, N. A. Rahim, A. H. A. Bakar, C. K. Tan, and A. M. A. Haidar, "A comprehensive review of synchronization methods for grid-connected converters of renewable energy source," Renew. Sustain. Energy Rev., vol. 59, pp. 1471–1481, Jun. 2016.
[9] A. F. Akkad, N. Erdili, and E. Sosnina, "Application of a fuzzy logic controller in a D-STATCOM in an electrical network with distributed generation," in 2023 Int. Russian Smart Industry Conf. (SmartIndustryCon), pp. 650–654, 2023.
[10] H. Elmazouri, A. Chaker, and Y. Zidane, "Comparative analysis of reactive power compensation devices in a distribution system: SVC versus STATCOM," Energies, vol. 15, no. 12, pp. 4453, Jun. 2022.
[11] L. Wang, C.-S. Lam, and M.-C. Wong, "A hybrid-STATCOM with wide compensation range and low DC-link voltage," IEEE Trans. Ind. Electron., vol. 63, no. 6, pp. 3333–3343, Jun. 2016.
[12] P. Fortescue, J. Stark, and G. Swinerd, Spacecraft Systems Engineering, 4th ed. Chichester, UK: Wiley, 2011.
[13] Compagnie des Phosphates de Gafsa, "Historical Timeline, Global Positioning and Economic Performance of the Tunisian Public Mining Firm TCGP," Internat. J. Manage. Sci. Bus. Admin., 2019.
[14] IEC/TR 61000-3-6, Electromagnetic Compatibility (EMC) – Part 3-6: Assessment of Emission Limits for the Connection of Distorting Installations to MV, HV and EHV Power Systems, IEC, Geneva, 2008.
[15] T. Ahmed, A. Waqar, R. M. Elavarasan, J. Imtiaz, M. Premkumar, and U. Subramaniam, "Analysis of fractional order sliding mode control in a D-STATCOM integrated power distribution system," IEEE Access, vol. 9, pp. 70337–70352, 2021.
[16] C. Kumar and M. K. Mishra, "An improved hybrid DSTATCOM topology to compensate reactive and nonlinear loads," IEEE Trans. Ind. Electron., vol. 61, no. 12, pp. 6517–6527, Dec. 2014.
[17] S. Yang, P. Wang, Y. Tang, and L. Zhang, "Explicit phase lead filter design in repetitive control for voltage harmonic mitigation of VSI-based islanded microgrids," IEEE Trans. Ind. Electron., vol. 64, no. 1, pp. 817–826, Jan. 2017.
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