초록

• 한전과 협의하여 신태백, 동제주 변전소에 유도전류 관측시스템 설치
• 유도전류 및 지자기 관측소의 지자기 폭풍 발생 관측 자료 상관관계 분석
• 유도전류 예측 모델 개발 및 검증
• 이천 구 관측소를 철거하고 새로운 관측 센서 설치 등 지자기 관측소 구축
• 절대 자기장 및 baseline 측정 및 품질관리
• 구축이후 INTERMAGNET 가입을 위한 최소 요구량인 1년간의 관측 자료 확보 예정
• 2013년 6월 12일 새로운 이천 지자기 관측소 개소시 전문가 초청 국제 세미나 개최

Abstract ▼

Development of observation and analysis for induced current on power grid
After the live-action and business consultations with Korea Electric Power Corporation (KEPCO) on the establishment of (GIC) measurement system for geomagnetic induced current, GIC measurement system have been installed at

Development of observation and analysis for induced current on power grid
After the live-action and business consultations with Korea Electric Power Corporation (KEPCO) on the establishment of (GIC) measurement system for geomagnetic induced current, GIC measurement system have been installed at east-Jeju substation and Shintaebaek substation in May. The constructed systems consist of sensor modules, data collection S/W and monitoring S/W for the induced current measurement data. The measurement data are automatically sent to the server of KSWC in Jeju and being monitored.
Collected GIC data were used to develop prediction model of GIC with reference to literature surveys. In order to increase the efficiency of research and monitoring, useful tools such as GIC Viewer have been produced. With comparison to the observation data of geomagnetic storms, analysis research to derive correlation coefficients between the geomagnetic field and GIC data was conducted. One another prediction model was developed with reffering to the method which was introduced in Canada and based on the layered earth conductivity model and meshed network method on circuit theory. In this research, several points of GIC value were modelled and simulated such like Shintaebaek, Shingapyeong, Shinanseong and Shinseosan which are all substations of the main transmission line of 765 kV. The simulation result are displayed with the graph and map on the homepage of KSWC.
• Construction of geomagnetic observation system
Activities related to the construction of a new geomagnetic observatory are the result of the main goal of the project. Through consultation and study about candidate sites from the early in this project, newly designed location of the geomagnetic observatory in Icheon was set to construct a new geomagnetic observatory. The installation of devices such as a new geomagnetic sensor having a better performance than the past was successfully done with the help of experts who gave thousands pieces of advice. They also gave the lessons about baseline measurement which is very important procedure to maintain quality of the overall data. Geomagnetic baseline measurement is being conducted regularly every week which enables this observatory to register INTERMAGNET with qualified 1 year long data. The results of the geomagnetic field observation like those of GIC is sent to the server at KSWC in Jeju through the built data transmission system and used for various purposes such as displaying the real time data on the web page. In addition to the construction, a lightning protection gears are installed additionally together with center installed gear to protect the new devices which in particular would be essential to these kind of long-term measurement equipments. Education mentioned above by experts for usage and knowledge of equipment is carried out during the construction of the observatory and then manual and guide notes were made for the consistency of measurement activities just in case of change of person conducts.
• Analysis of the change in domestic magnetic field
As part of the preparation activities of construction of geomagnetic observatory, a magnetic field exploration for the proposed observatory location is conducted early in this project. The explorations were performed repeatedly in order to analyze the impact of the installation of each observation equipment while building the observatory, then finally completed successfully.
Along with the preparatory work, the baseline measurement has been being carried out every week, which needs for INTERMAGNET registration in future with 1 year long qualified data, and analysis of the data measured also followed under the confirmation by expert in GIGAM. The invited experts of Icheon geomagnetic observatory site also did their wonderful job at the international seminar held in Icheon when the new observatory opened, there were a lot of invaluable advice and experts’ opinion about prospect of the observatory and measurement.

목차 Contents

• 표지 ... 1
• 제 출 문 ... 5
• 보고서 요약서 ... 6
• 요 약 문 ... 7
• SUMMARY ... 8
• CONTENTS ... 10
• 목 차 ... 12
• 제1장 연구개발과제의 개요 ... 14
• 제 1 절 지자기 관측시스템 구축 및 국내 자기장 변화 분석 연구 ... 14
• 제 2 절 국내 전력 망 유도전류 관측 및 분석 모델 개발 ... 14
• 제2장 국내외 기술개발 현황 ... 16
• 제 1 절 국내 기술 및 산업 동향 ... 16
• 제 2 절 국외 기술 및 산업 동향 ... 19
• 제3장 연구개발수행 내용 및 결과 ... 22
• 제 1 절 전력망 유도전류 관측 및 분석 체계 개발 ... 22
• 제 2 절 지자기 관측시스템 구축 ... 24
• 제 3 절 국내 자기장 변화 분석 ... 26
• 제4장 목표달성도 및 관련분야에의 기여도 ... 28
• 제 1 절 연구목표 달성도 ... 28
• 제 2 절 관련분야 기여도 ... 29
• 제5장 연구개발결과의 활용계획 ... 30
• 제 1 절 활용 분야 ... 30
• 제 2 절 활용 방안 ... 30
• 제 3 절 추가연구 방안 ... 30
• 제6장 연구개발과정에서 수집한 해외과학기술정보 ... 31
• 제7장 연구시설ㆍ장비현황 ... 32
• 제 1 절 지자기 관측소 구축 ... 32
• 제 2 절 지자기 관측 장비 설치 ... 32
• 참고문헌 ... 36
• [붙임 1] 지자기 유도전류 측정 시스템 설치를 위한 신태백 변전소 방문 조사 결과 ... 38
• [붙임 2] GIC 관측자료 종합 분석 ... 43
• [붙임 3] 지자기 관측 데이터 종합 분석 ... 65
• [붙임 4] GIC 시뮬레이터 사용자 매뉴얼 ... 83
• [붙임 5] 지자기 관측소 구축 ... 98
• [붙임 6] 지구자기장 교란관측 및 영향 분석모델 개발 ... 108
• [붙임 7] 이천 지자기 관측소 장비 구성 매뉴얼 ... 117
• [붙임 8] 절대측정 결과 종합 보고서(1차) ... 127
• [붙임 9] 이천 지자기 측정소의 지자기 절대 측정을 위한 기선의 방위각 측량 ... 137
• [붙임 10] 지자기 절대 측정 절차서 ... 148
• [붙임 11] 이천 지자기 관측소 이전, 설치 후보지에 대한 자력 탐사 결과 ... 161
• [붙임 12] 국제 지구자기장 워크숍 개최 결과 보고서 ... 168
• [붙임 13] 한반도 지자기 변화량과 유도전류의 상관관계 분석 ... 172
• [붙임 14] INTERMAGNET 기준의 신규 관측소 설치 ... 180
• [붙임 15] 우주전파센터 지자기 유도전류 측정시스템 H/W 설치 정보 ... 188
• [붙임 16] 우주전파센터 지자기 유도전류 측정시스템 H/W 설치 정보 ... 206
• 끝페이지 ... 220