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Journal of electrical engineering & technology v.7 no.3, 2012년, pp.320 - 329   SCIE
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The Coordinate Control Method of LTC Transformer and Capacitor Banks at Distribution Substation

Choi, Joon-Ho    (Dept. of Electrical Engineering, Chonnam National University   ); Ahn, Seon-Ju    (Dept. of Electrical Engineering, Chonnam National University   ); Nam, Hae-Kon    (Dept. of Electrical Engineering, Chonnam National University   ); Kim, Jae-Chul    (Dept. of Electrical Engineering, Soongsil University   ); Moon, Seung-Il    (School of Electrical and Computer Engineering, Seoul National University   ); Jung, Won-Wook    (Smart Energy Lab., KEPCO Research Institute   ); Song, Il-Keun    (Smart Energy Lab., KEPCO Research Institute  );
  • 초록

    The Load Tap Changing (LTC) transformer and Shunt Capacitor (SC) bank are major devices for voltage and reactive power control in a distribution substation. Thus, the coordination operation of a LTC transformer and a SC bank is required to achieve better voltage and reactive power compensation at a distribution substation in the same time. This paper proposes coordinate control method of LTC transformer and SC bank to achieve better voltage and reactive power compensation and operation times of these two devices in the same time. The mathematical formulations of the proposed coordinate control method are introduced. Sample case studies are shown to verify the effectiveness of the proposed coordinate control method.


  • 주제어

    Load Tap Changing (LTC) transformer .   Shunt capacitor (SC) bank .   Line Drop Compensation (LDC) .   Voltage control .   Reactive power .   Coordinate control .   Dead band control .   Distribution substation .   Load diversity.  

  • 참고문헌 (12)

    1. Hsu, Y-Y. and Kuo, H.-C., "Dispatch of Capacitors on Distribution System Using Dynamic Programming", IEE Generation, Transmission, and Distribution, vol. 140, pp. 433-438, 1993 
    2. Lu, F.-C. and Hsu, Y.-Y., "Reactive Power/Voltage Control in a Distribution Substation Using Dynamic Programming", IEE Generation, Transmission, and Distribution, vol. 142, pp. 639-645, 1995 
    3. Liang, R-.H. and Cheng, C.-K., "Dispatch of Main Transformer ULTC and Capacitors in a Distribution System", IEEE Transaction on Power Delivery, Vol. 16, pp. 626-630, 2001 
    4. Civanlar, S., and Grainger, J.-J., "Volt/VAr Control on Distribution Systems with Lateral Branches Using Shunt Capacitors and Voltage Regulator. Part III: Numerical Results", IEEE Transaction on PAS, PAS-104, pp. 3291-3297, 1985 
    5. Hsu, Y.-Y. and Lu, F.-C., "A Combined Artificial Neural Network - Fuzzy Dynamic Programming Approach to Reactive Power/Voltage Control in a Distribution Substation", IEEE Transaction on Power Systems, vol. 13, pp. 1265-1271, 1998 
    6. Wang, Z.-H., Chen, H. and Taylor, G.-A., "Volt/VAr Control in Distribution Systems Using a Timeinterval Based Approach", IEE Generation, Transmission, and Distribution, vol. 150, pp. 548-554, 2003 
    7. M. E. Baran and M.-Y Hsu, "Volt/Var Control at Distribution Substation", IEEE Transaction on Power Systems, vol. 14, pp. 312-318, 1999 
    8. Joon-Ho Choi, "Cooperation Schemes of the LTC and SC for Distribution Volt/Var Compensation", KIEE International Transactions on PE, vol. 4-A, pp. 207-213, 2004     
    9. Joon-Ho Choi and Jae-Chul Kim, "Advanced Voltage Regulation Method at the Power Distribution Systems Interconnected with Dispersed Storage and Generation Systems", IEEE Transaction on Power Delivery, vol. 15, pp. 691-696, 2000 
    10. Joon-Ho Choi and Jae-Chul Kim, "Advanced Voltage Regulation Method at the Power Distribution Systems Interconnected with Dispersed Storage and Generation Systems (revised)", IEEE Transaction on Power Delivery, vol. 16, pp. 329-334, 2001 
    11. Joon-Ho Choi and Seung-Il Moon, "The Dead Band Control of LTC Transformer at Distribution Substation", IEEE Transaction on Power Systems, vol. 24, pp. 319-326, 2009 
    12. M.S. Calovic., "Modeling and Analysis of Under Load Tap Changing Transformer Control Systems", IEEE Transaction on PAS, PAS-103, pp. 1909-1915, 1984 

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