철탑 사각골조의 풍력 계수 산정에 관한 실험적 연구

신구용,임재섭,황규석,길용식,Shin, Koo-Yong,Lim, Jae-Seob,Hwang, Kyu-Seok,Kil, Yong-Sik 한국강구조학회 2011 한국강구조학회 논문집 Vol.23 No.1

골조로 구성된 철탑의 풍력계수는 구성부재의 단면형상, 충실율 등에 의해 변하며 풍향각에 의해서도 여러 가지 특성이 나타난다. 본 연구에서는 이러한 철탑골조에 대하여 충실율과 풍향각을 변화시키면서 풍동실험을 수행하여 철탑골조에 작용하는 풍력특성을 평가한다. 실험은 먼저 철탑을 구성하고 있는 부재의 특성을 파악하기 위한 기본형상 부재에 대한 실험을 수행하였다. 그리고 철탑 사각골조는 2D와 3D 형태로 기본형에 철탑부재를 추가하는 방법과, 부재크기를 증가시키는 방법으로 충실율을 변화시킨 모형을 제작하였으며, 2D 형상은 풍향각을 0도에서 90도까지, 3D 형상은 풍향각을 0도에서 45도까지 변화시키면서 풍동실험을 수행하였다. 본 연구의 결과인 철탑 사각골조의 풍력계수 특성은 향후 철탑 풍하중 설계의 기초자료로 사용될 것이다. The wind force coefficient of a transmission tower frame shows several characteristics when the section shape, solidity ratio, and wind direction angle are changed. In this study, the wind force characteristics of a transmission tower frame with a basic structure were evaluated using different solidity ratios and wind direction angles in a wind tunnel test. According to the solidity ratio, the size of the structure and the rectangular-frame model of the transmission tower were changed by adding a two-dimensional (2D) or three-dimensional (3D) structure. The transmission tower's rectangular frame was tested by changing the wind direction angle of the 2D-type structure from 0 to $90^{\circ}$ and by changing the wind direction angle of the 3D-type structure from 0 to $45^{\circ}$ Based on the results that were obtained, it can be concluded that the wind force coefficient of a transmission tower frame can be used as preliminary data in deciding the transmission tower's wind load.

한국 HVDC 사업 및 연구개발 어떻게 추진되고 있는가? (Ⅰ)

신구용,정채균,이동일 대한전기학회 2016 전기의 세계 Vol.65 No.6

도체귀로형 ±500 kV Double Bipole 송전선로 공기절연에 관한 연구

신구용,권구민,송성환,우정욱,Shin, Kooyong,Kwon, Gumin,Song, Seongwhan,Woo, Jungwook 한국전력공사 2019 KEPCO Journal on electric power and energy Vol.5 No.3

Recently, the biggest issue in the electricity industry is the increase in renewable energy, and various technologies are being developed to ensure the capacity of the power system. In addition, super-grids linking power systems are being pushed to utilize eco-friendly energy between countries and regions worldwide. The HVDC transmission technology is required to link the power network between regions with different characteristics of the power system such as frequency and voltage. Until now, Korea has applied HVDC transmission technology that connects mainland and Jeju Island with submarine cables. But, the HVDC transmission technology is still developing for long-distance high-capacity power transmission from power parks on the east coast to load-tight areas near the metropolitan area. Considering the high population density and mountainous domestic environment, it is pushing for commercialization of the design technology of the ${\pm}500kV$ Double Bipole with metallic return wire transmission line to transmit large-scale power of 8 GW using minimal right of ways. In this paper, the insulation characteristics were studied for the design of double-bipole transmission tower with metallic return wire, which is the first time in the world. And the air insulation characteristics resistant to the various overvoltage phenomena occurring on transmission lines were verified through a full-scale impulse voltage test.

초고압 송전선로용 환경친화 저풍소음 특수전선 개발

신구용,Sin, Gu-Yong 한국전기산업진흥회 2001 電氣産業 Vol.12 No.5

전력설비의 전기환경장해

신구용,이동일,윤진열,김상범,김정부 한국조명전기설비학회 1999 조명·전기설비학회논문지 Vol.13 No.2

본 논문은 전력설비, 특히 송전선로에 의해서 발생되는 전기환경장해의 특성과 이것의 제한기준에 관한 연구로서, 전기환경기준을 만족하는 송전선로 최적도체선정에 기본이 되며 전기환경장애 민원의 주 항목이 되는 가청소음, 라디오 및 TV장해, 정전유도 그리고 전자유도에 대한 국내 및 세계각국의 관련기준과 법규를 조사, 비교하고 초고압 실증시험선로에서 도출된 결과를 통하여 우리나라 실정에 맞는 전력설비 전기환경 설계기준(안)을 제시하였다. This paper describes the characteristics and the criteria of electrical envirionmental effects produced from power systam, especially transmission line. Audible noise, radio and TV interlerence, electric and magnetic inductions which are main items for optimal conductor selection as well as major contributors to the community complaint of electrical envirorurental problem, are surveyed and studied comparing with the criteria or the envirorurental protection regulation of domestic and foreign countries. As a result, a domestic criteria of electrical envirorurental on power system was suggested.gested.

실증시험선로를 이용한 도체귀로형 HVDC ±500 kV Double Bipole 가공송전선로의 이온류 특성 평가

신구용,권구민,주문노,우정민,Shin, Kooyong,Kwon, Gumin,Ju, Munno,Woo, Jeong Min 한국전력공사 2019 KEPCO Journal on electric power and energy Vol.5 No.4

A full-scale test line was established to verify the electrical environmental interferences caused by the HVDC ±500 kV Double Bipole overhead transmission line with metallic return conductor, which is scheduled for construction in Korea and the fullscale test was conducted for one year. And through the human perception test of the DC electric-field under the HVDC Double Bipole line, the threshold value at which the human detects DC electric field was investigated to verify the validity of the design guide for the HVDC ±500 kV Double Bipole overhead transmission line. The polarity configuration of the HVDC ±500 kV Double Bipole test line was arranged diagonally with the same polarity in terms of the electrical environment disturbance and operation. The test line utilized the 6-bundle arrangement to prevent the corona discharge taking into account the domestic social acceptability. The test results show that the HVDC ±500 kV Double Bipole transmission line generated very little corona discharge from the conductors. Therefore, both DC electric field and ion current density met the domestic design guide for DC overhead transmission lines. Also, the human perception test of DC electric fields under the test line showed that 70% of participants did not recognize the DC electric field even when exposed to 23 kV/m.

HVDC 직류선로 기술개발 동향

신구용 대한전기학회 2010 대한전기학회 워크샵 Vol.2010 No.11

화염노출에 의한 송전선로 인바 강심의 온도 및 인장하중 분석에 관한 연구

신구용(Koo-Yong Shin),정채균(Chae-Kyun Jung),이상윤(Sang-Yun Lee),강지원(Ji-Won Kang),이동일(Dong-Il Lee) 대한전기학회 2009 전기학회논문지 Vol.58 No.10

This paper describes the conductor temperature and tensile load analysis of invar by flame exposure on STACIR(Super Thermal-resistance Aluminium-alloy Conductors Reinforced) overhead transmission line based on real fault phenomena. Firstly, short-circuit fault by flame exposure is analysed by EMTP/ATP simulation, then the cutting causes of Al layer are also discussed. And then, the conductor temperature is calculated based on IEC 60949 according to 3 kinds of materials including invar, Al conductor and ACSR when same load current respectively flows in 3 kinds of material, they are compared each other. Finally, the tensile load tests are performed with various samples including new invar, used invar for a long time and invar exposed flame.

인공잡음 발생장치를 이용한 초고압 시험선로의 잡음 방사특성 연구

신구용(K.Y. Shin),이동일(D.I. Lee),김상범(S.B. Kim) 대한전기학회 1999 대한전기학회 학술대회 논문집 Vol.1999 No.7

직류 송전선로의 극배치에 따른 전기환경특성 분석

신구용(Koo-Yong Shin),이동일(Dong-Il Lee),임재섭(Jae-Seop Lim),주문노(Mun-No Ju),양광호(Kwang-Ho Yang),지홍근(Hong-Keun Ji),민석원(Suk-Won Min) 대한전기학회 2010 대한전기학회 학술대회 논문집 Vol.2010 No.7

HVDC transmission lines must be designed to satisfy environmental regulations. Therefore it is necessary to pre-evaluate environmental problems for transmission line designer using prediction program. In this study, environment design software, for HVDC transmission lines was developed as a comprehensive window program. It can calculate electric field strength of ground surface, ion current density and charged voltage. This program will be usefully applied to the environmental friendly design and construction of HVDC transmission lines.