배전기기 전압계측 정밀도 평가시스템 개발 및 성능시험

다국어 초록 (Multilingual Abstract)

Power distribution system has been changed from radial system to closed loop or mesh system due to connection of distributed generation growth. Data from distribution equipments which are installed at distribution line is required to be accurate for the performance of DMS(Distribution Management System). This paper analyzes the voltage measurement data from distribution equipment. However, the results of the analysis are confirmed to have some errors in voltage measurement data from distribution equipment. These errors come from aging of voltage sensor in distribution equipment and inaccurate data transfer to FRTU(feeder remote terminal unit) through the controller. The main problem is that the voltage measurement data of distribution equipment can not be assessed after its first installation at the distribution line. The voltage measurement accuracy assessment system is to assess the voltage measurement data from distribution equipment on hot-line. This study had a field test to verify the performance of system.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 전압계측 정밀도 평가시스템
• 3. 성능시험
• 4. 결론
• References

참고문헌 (Reference)

1 A.H. Luxa, "Sensors and Non-conventional VT and CT for Medium Voltage Switchgear" 173-180, 1998

2 D.M. Parker, "Medium-voltage Sensors for the Smart Grid: Lessons learned" 1 (1): 1-7, 2011

3 "Live working –Voltage detectors –part 2: Resistive type to be used for voltages of 1kV to 36kV a.c., IEC std. 61243-2"

4 "Live working –Portable phase comparators for use on voltages from 1kV to 36kV a.c., IEC std. 61481"

5 "Live working –Insulation foam-filled tubes and solid rods –Part 1: Tubes and rods of a circular cross-section, IEC std. 60855-1"

6 S.Y. Yun, "Development of Load Estimator and Power Flow Program for Smart Distribution Management System" 2011