广东电力
廣東電力
엄동전력
GUANGDONG ELECTRIC POWER
2015年
5期
109-113
,共5页
分布式输电线路智能故障诊断系统%雷电定位系统%易击段%雷击监测%防雷评估
分佈式輸電線路智能故障診斷繫統%雷電定位繫統%易擊段%雷擊鑑測%防雷評估
분포식수전선로지능고장진단계통%뇌전정위계통%역격단%뢰격감측%방뢰평고
intelligent fault diagnosis system of distributed power transmission line%lightning positioning system%easily stroke section%lightning stroke monitoring%lightning protection evaluation
针对采用雷电定位系统进行防雷评估活动缺乏针对性，分布式输电线路智能故障诊断系统(以下简称“智能故障诊断系统”)也只能监测输电线路走廊的雷电活动，而无法记录雷直击线路情况，为此，基于智能故障诊断系统与雷电定位系统的综合应用，提出一种新的防雷评估方法。该方法利用智能故障诊断系统与雷电定位系统雷击监测数据获得的输电线路雷击频度，来计算杆塔的绕击跳闸率和反击跳闸率，再根据跳闸率划分出绕击易闪段和反击易闪段，从而有针对性地开展差异化防雷改造工作。以某评估案例的实测雷击数据对防雷技术改造效果进行评估，结果表明，该方法可在短时间内对防雷措施进行有效性评估，形成防雷改造措施和防雷效果评估的闭环控制，提升了防雷评估分析的准确性和防雷改造的经济性。
針對採用雷電定位繫統進行防雷評估活動缺乏針對性，分佈式輸電線路智能故障診斷繫統(以下簡稱“智能故障診斷繫統”)也隻能鑑測輸電線路走廊的雷電活動，而無法記錄雷直擊線路情況，為此，基于智能故障診斷繫統與雷電定位繫統的綜閤應用，提齣一種新的防雷評估方法。該方法利用智能故障診斷繫統與雷電定位繫統雷擊鑑測數據穫得的輸電線路雷擊頻度，來計算桿塔的繞擊跳閘率和反擊跳閘率，再根據跳閘率劃分齣繞擊易閃段和反擊易閃段，從而有針對性地開展差異化防雷改造工作。以某評估案例的實測雷擊數據對防雷技術改造效果進行評估，結果錶明，該方法可在短時間內對防雷措施進行有效性評估，形成防雷改造措施和防雷效果評估的閉環控製，提升瞭防雷評估分析的準確性和防雷改造的經濟性。
침대채용뇌전정위계통진행방뢰평고활동결핍침대성，분포식수전선로지능고장진단계통(이하간칭“지능고장진단계통”)야지능감측수전선로주랑적뇌전활동，이무법기록뢰직격선로정황，위차，기우지능고장진단계통여뇌전정위계통적종합응용，제출일충신적방뢰평고방법。해방법이용지능고장진단계통여뇌전정위계통뢰격감측수거획득적수전선로뢰격빈도，래계산간탑적요격도갑솔화반격도갑솔，재근거도갑솔화분출요격역섬단화반격역섬단，종이유침대성지개전차이화방뢰개조공작。이모평고안례적실측뢰격수거대방뢰기술개조효과진행평고，결과표명，해방법가재단시간내대방뢰조시진행유효성평고，형성방뢰개조조시화방뢰효과평고적폐배공제，제승료방뢰평고분석적준학성화방뢰개조적경제성。
In allusion to deficiency of pertinence of using lightning positioning system for evaluating lightning protection,and intelligent fault diagnosis system of distributed powertransmission line being only able to monitoring lightning action of pow-er transmission line corridor while unable to record lightning direct stroke lines,a kind of new evaluation method for light-ning protection was proposed based on integrated application of intelligent fault diagnosis system and lightning positioning system.This method uses lightning stroke frequentness acquired from lightning stroke monitoring data of intelligent fault di-agnosis system and lightning positioning system to calculate shielding failure trip-out rate and back-strike switching rate of the tower,then to divide easily stroke sections of shielding and back-strike according to trip-out rates in order to make point-ed references in developing differentiation lightning protection transformation works.Actual measuring lightning data of some evaluation case was used for evaluating technical transformation effect of lightning protection and the result indicated that this method could used for effectiveness evaluation on lightning protection measures in short time,forming closed-loop control on evaluation on lightning protection transformation measures and effects and promoting veracity of evaluation anal-ysis on lightning protection and economy of lightning protection transformation.
