Mitigation of voltage unbalance by DSTATCOM in a three phase four wire system

• Autorzy: Patel Dhairya , Venkatraman K. , Rudraraju Venkata Rama Raju
• Języki publikacji: EN

Abstrakty

EN

This paper presents a Distribution Static Compensator (DSTATCOM) that uses a traditional Synchronous Reference Frame (SRF) to make source current in phase and sinusoidal shape w.r.t source voltage, so that unity power factor is achieved at source side. In addition to this, a new concept of single phase synchronous d-q reference frame theory is used for generation of reference signals in a three phase distribution system for compensation of voltage unbalances at the load side. Further, this paper uses a traditional hysteresis controller for generation of switching signals for the Voltage Source Converter (VSC). Moreover, switching of DSTATCOM between Current Controlled Mode (CCM) and Voltage Controlled Mode (VCM) is carried out so that only single DSTATCOM serves the problem for current and voltage related Power Quality problems. Simulations are carried out in MATLAB/Simulink environment to validate the proposed scheme and results indicate that the unity power factor is achieved during CCM mode and voltages in all the three phases at PCC are maintained at 1 p.u. during VCM mode.

Słowa kluczowe

EN

hysteresis controller; DSTATCOM; power quality; single phase SRF theory; voltage unbalance; current controlled mode; voltage controlled mode

PL

regulator dwustawny; DSTATCOM; jakość energii; teoria SRF; asymetria napięć; system kontroli napięcia; system kontroli prądu

• Wydawca: Institute of Heat Engineering, Warsaw University of Technology
• Czasopismo: Journal of Power Technologies
• Rocznik: 2019
• Tom: Vol. 99, nr 4
• Strony: 237--244
• Opis fizyczny: Bibliogr. 16 poz., rys., tab., wykr.

Twórcy

autor

Patel Dhairya

• Vardhaman College of Engineering, India

autor

Venkatraman K.

• Vardhaman College of Engineering, India

autor

Rudraraju Venkata Rama Raju

• Vardhaman College of Engineering, India

Bibliografia

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• [7] K. Venkatraman, S. Moorthi, M. P. Selvan, Modelling and Control of Transformer-less Universal Power Quality Conditioner (TUnPQC): An Effective Solution for Power Quality Enhancement in Distribution System, Journal of Control Automation and Electrical Systems 28 (1) (2016) 123–134. doi:10.1007/s40313-016-0276-9. URL https://doi.org/10.1007%2Fs40313-016-0276-9
• [8] S.-J. S. Tsai, Y. Chang, Dynamic and unbalance voltage compensation using STATCOM, in: 2008 IEEE Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century, IEEE, 2008. doi:10.1109/pes.2008.4596369. URL https://doi.org/10.1109%2Fpes.2008.4596369
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• [10] B. Singh, P. Jayaprakash, D. P. Kothari, Three single-phase voltage source converter based three-phase four wire DSTATCOM, in: 2009 International Conference on Power Systems, IEEE, 2009. doi:10.1109/icpws.2009.5442701. URL https://doi.org/10.1109%2Ficpws.2009.5442701
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• [12] P. Kanjiya, B. Singh, A. Chandra, K. Al-Haddad, “SRF Theory Revisited” to Control Self-Supported Dynamic Voltage Restorer (DVR) for Unbalanced and Nonlinear Loads, IEEE Transactions on Industry Applications 49 (5) (2013) 2330–2340. doi:10.1109/tia.2013.2261273. URL https://doi.org/10.1109%2Ftia.2013.2261273
• [13] V. Khadkikar, B. Singh, A. Chandra, Generalised single-phase pq theory for active power filtering: simulation and DSP-based experimental investigation, IET Power Electronics 2 (1) (2009) 67–78. doi:10.1049/iet-pel:20070375. URL https://doi.org/10.1049%2Fiet-pel%3A20070375
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Uwagi

EN

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).