高电压技术
高電壓技術
고전압기술
HIGH VOLTAGE ENGINEERING
2009年
12期
2930-2936
,共7页
陆国俊%熊俊%陈家宏%童雪芳%谷山强
陸國俊%熊俊%陳傢宏%童雪芳%穀山彊
륙국준%웅준%진가굉%동설방%곡산강
雷电定位系统%雷电参数%地闪密度%雷电流%雷电日%雷击故障%相关性%雷电防护
雷電定位繫統%雷電參數%地閃密度%雷電流%雷電日%雷擊故障%相關性%雷電防護
뇌전정위계통%뇌전삼수%지섬밀도%뇌전류%뇌전일%뢰격고장%상관성%뇌전방호
lightning location system%lightning parameter%ground flash density%lightning current%thunderstorm day%lightning fault%correlation%lightning protection(JA2008008)
为掌握高雷区雷电活动规律,以广州地区1999~2008年间雷电定位数据为基础,利用雷电参数统计技术及综合分析平台,结合GIS系统,详细研究了广州地域地闪总数、地闪密度、雷电幅值、雷电幅值概率分布及雷电日等重要雷电参数.研究表明广州地区地闪分布季节性明显,54%~83%的地闪主要集中在夏季;地闪密度空间分布具有较强的规律性,与海拔高度关系密切,相比雷电日更能科学反映实际雷电活动分布和变化特征;正负极性雷电流幅值均有明显的集中性.以广州电网500 kV蓄增甲线为例,分析得到走廊沿线雷电活动与雷击故障具有较强的相关性,对于解决高雷区长期电网防雷难题更有指导意义.
為掌握高雷區雷電活動規律,以廣州地區1999~2008年間雷電定位數據為基礎,利用雷電參數統計技術及綜閤分析平檯,結閤GIS繫統,詳細研究瞭廣州地域地閃總數、地閃密度、雷電幅值、雷電幅值概率分佈及雷電日等重要雷電參數.研究錶明廣州地區地閃分佈季節性明顯,54%~83%的地閃主要集中在夏季;地閃密度空間分佈具有較彊的規律性,與海拔高度關繫密切,相比雷電日更能科學反映實際雷電活動分佈和變化特徵;正負極性雷電流幅值均有明顯的集中性.以廣州電網500 kV蓄增甲線為例,分析得到走廊沿線雷電活動與雷擊故障具有較彊的相關性,對于解決高雷區長期電網防雷難題更有指導意義.
위장악고뢰구뇌전활동규률,이엄주지구1999~2008년간뇌전정위수거위기출,이용뇌전삼수통계기술급종합분석평태,결합GIS계통,상세연구료엄주지역지섬총수、지섬밀도、뇌전폭치、뇌전폭치개솔분포급뇌전일등중요뇌전삼수.연구표명엄주지구지섬분포계절성명현,54%~83%적지섬주요집중재하계;지섬밀도공간분포구유교강적규률성,여해발고도관계밀절,상비뇌전일경능과학반영실제뇌전활동분포화변화특정;정부겁성뇌전류폭치균유명현적집중성.이엄주전망500 kV축증갑선위례,분석득도주랑연선뇌전활동여뢰격고장구유교강적상관성,대우해결고뢰구장기전망방뢰난제경유지도의의.
The Lightning Location System has been put into operation in Guangzhou, one of the highest thunderstorm regions in China, for a decade, and accumulated a ten-year lightning detection data. In order to master the characteristics of lightning activities in Guangzhou, this paper applies the lightning parameter statistical technology and geographic information system to particularly study the lightning amount, flash density, lightning current,thunderstorm day, as well as their distribution. The studies show that ground flashes in Guangzhou have distinct seasonal characteristics and 54% ~ 83% of the total amount concentrates in summer. The special distribution of ground flash density has a strong regularity, and it also has a close relationship with elevation. Compared with the traditional thunderstorm day, the ground flash density is more scientific and applicable to describe the distribution characteristics of lightning activities. The analysis results also show that both the positive and negative lightning currents have a clear centrality. In this paper Xuzeng Jia Line is analyzed in detailed as an application example of lightning parameters for lightning protection of transmission lines. The results show that there is a strong correlation between the lightning faults and lightning activities along the line corridor, which would provide a guide for solving the long-term difficult problems of lightning protection in power system of high thunderstorm regions.