Improvement of Power Quality in Four-Wire ‎Distribution Systems

Document Type : Original Article

Authors

1 Department of Electrical Engineering, Aliabad Katoul Branch, Islamic Azad University, Aliabad Katoul, Iran

2 MAPNA Operation and Maintenance Co. (O&M), Tehran, Iran

Abstract

This paper explores the inherent characteristics of multigrounded three-phase four-wire distribution systems under unbalanced situations. As a result, the mechanism of profile voltage in MGN feeders becomes difficult to understand. The simulation tool that been used for this paper is Matlab under Windows platform. In this paper the equivalent model of a full-scale multi-grounded distribution system implemented by Matlab is introduced. The results are expected to help utility engineers to understand the impact of MGN on distribution system operations.This paper explores the inherent characteristics of multigrounded three-phase four-wire distribution systems under unbalanced situations. As a result, the mechanism of profile voltage in MGN feeders becomes difficult to understand. The simulation tool that been used for this paper is Matlab under Windows platform. In this paper the equivalent model of a full-scale multi-grounded distribution system implemented by Matlab is introduced. The results are expected to help utility engineers to understand the impact of MGN on distribution system operations.

Keywords


1. J. Burke, “Power Distribution Engineering Fundamentals and Applications”. New York: Marcel Dekker, 1994, pp. 16–17.
2. Rohani; M. Joorabian; S. Rahimi, “Power quality improvement in three-phase four-wire distribution systems by DSTATCOM and using adaptive hysteresis band current controller”,2014 22nd Iranian Conference on Electrical Engineering (ICEE).
3. Soumya Ranjan Das, Prakash K. Ray, Arun Kumar Sahoo1, Karthik Balasubramanian and GaddamSanjeeva Reddy, “Improvement of Power Quality in a Three-Phase System Using an Adaline-Based Multilevel Inverter”, Energy Res., 28 February 2020.
4. Mihaela Popescu, Alexandru Bitoleanu, MihaitaLinca and Constantin Vlad Suru, “Improving Power Quality by a Four-Wire Shunt Active Power; Filter: A Case Study,”Energies 2021, 14, 1951.
5. H. Chen, M. S. Chen, T. Inoue, P. Kotas, and E. A. Chebli, “Three-phase cogenerator and transformer models for rigorous distributionsystem analysis,” IEEE Trans. Power Delivery, vol. 6, no. 4, pp.1671–1681, Oct. 1991.
6. H. Chen, J. D. Chang, and Y. L. Chang, “Models of grounded mid-tap open wye and open delta connected transformers for rigorous analysisof a distribution system, ”IEEE Proceedings—Generation, Transmission and Distribution, vol. 143, no. 1, pp. 82–88, Jan. 1996.
7. P. Meliopoulos, J. Kennedy, C. A. Nucci, A. Borghetti, and G. Contaxies, “Power distribution practices in USA and Europe: impact on power quality,” in Proc. Int. Conf. Harmon. Quality Power, vol. 1, 1998,pp. 24–29.
8. Xu, MHLF, “Manual—Multiphase Harmonic Load Flow Program. Surrey, BC, Canada: Powertech Lab,” Inc., 1991.
9. Popescu, M.; Bitoleanu, A.; Linca, M.; Suru, C.V. “Improving Power Quality by a Four-Wire Shunt Active Power Filter: A Case Study,Energies2021, 14, 1951.
10. S. Chen andW. E. Dillon, “Power system modeling,” IEEE Proceedings, vol. 62, no. 7, pp. 901–915, July 1974.
11. “IEEE Recommended Practice for Grounding of Industrial and CommercialPower Systems,”IEEE Std. 142-1991, June 1992.
12. H. Chen,W. C. Yang, T. Y. Guo, and G. C. Pu, “Modeling and analysisof asymmetrical three-phase distribution transformer banks with mid-tap connected to the secondary neutral conductor,” Electric Power SystemsResearch, vol. 54, no. 2, pp. 83–89, May 2000.
13. C. Balda, A. R. Oliva, D. W. McNabb, and R. D.Richardson, “Measurements of neutral currents andvoltages on a distribution feeder,” IEEE Trans. PowerDelivery, vol. 12, no. 4, pp. 1799–1804, Oct.1997.
14. P. S. Meliopoulos, J. Kennedy, C. A. Nucci, A. Borghetti, and G. Contaxies, “Power distribution practices in USA and Europe: Impact on power quality,” in Proc.1998 International Conference onHarmonics and Qualityof Power, vol. 1, pp24–29.
15. C. Das and R. H. Osman, “Grounding of AC andDC low-voltage andmedium-voltage drive system,” IEEE Trans. Industry Applications, vol.34, no. 1, pp.205–216, Jan./Feb. 1998.
16. Jim Burkeand Mike Marshall, “Distribution SystemNeutral Grounding,” ABB Power T&D – Raleigh,North Carolina, 0-7803-7285-9/01/$17.00 (C) 2001IEEE