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http://dx.doi.org/10.5370/KIEE.2018.67.4.491

Voltage Estimation Method for Distribution Line with Irregularly Dispersed Load  

Park, Sanghyeon (Dept. of Electrical Engineering, Kyungnam University)
Lim, Seongil (Dept. of Electrical Engineering, Kyungnam University)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.67, no.4, 2018 , pp. 491-497 More about this Journal
Abstract
Most of the applications for distribution system operation highly rely on the voltage and current managements from the field devices. Voltage from the remote controlled switch contains unacceptably large measurement error due to the nonlinear characteristics of the bushing potential transformer. This paper proposes a new voltage magnitude estimation method by calculating voltage drop using current measurement, line impedance and loads deployment data. Contract demand power and pole transformer capacity managed by NDIS are used as a key element to improve accuracy of the proposed method. Various case studies using Matlab simulation have been performed to verify feasibility of the propose voltage estimation method.
Keywords
Distribution Automation; Voltage Estimation; State Estimation;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 KEPCO, "Development of high precision potential transformer for distribution system," pp. 2, 2016.
2 M. E. Baran and A. W. Kelley, "State estimation for real-time monitoring of distribution system," IEEE Trans. on Power System, Vol. 9, pp. 1601-1609, 1994.
3 H. Wang and N. N. Schulz, "A revised branch currentbased distribution system state estimation algorithm and meter placement impact," IEEE Trans. on Power System, Vol. 19, pp. 207-213, 2004.
4 W. M. Lin and J. H. Teng, "Distribution fast decoupled state estimation by measurement pairing," Proc. Gen. Transmission & Distribution, vol. 143, no. 1, pp. 43-48, 1996.
5 W. M and Lin, J. H. Teng, "State estimation for distribution system with zero-injection constraints," IEEE Trans, vol. 11, pp. 518-524, 1996.
6 K. Li. "State estimation for power distribution system and measurement impacts," IEEE Trans. on Power Systems, vol. 11, pp. 911-916, 1996.
7 W. M Lin, J. H. Teng and S. J. Chen, "A highly efficient algorithm in treating current measurements for the branch-current-based distribution state estimation," IEEE Trans. on Power Delivery, vol. 16, pp. 433-439, 2001.
8 I. Roytelman and S. M. Shahidehpour, "State estimation for electric power distribution systems inf quasi realtime condition," IEEE Trans. on Power Del., vol. 8, no. 4, pp. 2009-2015, 1995.
9 M. K. Celik, W. -H. E. Liu, "A practical distribution state calculation algorithm, IEEE Power Engineering Society," 1999 Winter Meeting(Cat. No.99CH36233), Vol. 1, pp. 442-447, 1999.
10 J. Park, C. Jeon and S. Lim. "Accurate Section Loading Estimation Method Based on Voltage Measurement Error Compensation in Distribution System." Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, Vol. 30, pp. 43-48, 2016.
11 G. Song, "New Transmission and Distribution Engineering," Dong-A, pp. 483-492, 2010.
12 M. E. Baran and A. W. Kelley, "A branch-current-based state estimation method for distribution systems," IEEE Trans. on Power Systems, Vol. 10, pp. 483-491, 1995.
13 M. Sin, "Transmission and Distribution Engineering", Gwangmyeong, pp. 451-454, 2000.