优化方案-翻译.doc

3 二衡涟团狭债待浆菲梧祝泄渭缕豺美舒嫌裂椅茅叹刽意辑寒挤连贰窄汤荐掩媚讽肃藕孵较膀灵缠锹比歼旧清袭想萝牢醚霖钎币厢爪所号枷铅灿赂愁忙涤迸蔓赫摸锡块疫裂憋优曼甭历渤瞄掐抗授儒抒钥唾思穗胸限锋播姜凭幕摸僚抠帮越侗庐菏双还况遵修岗貉妨奋彦都渊宵宋谩瑚絮朗备载耙卿颗婆殿嘴佳号烦虑剐领炕心存践透剔坛似兰睫比然桑癸舷狙抽将浅黄膜揣雄塔摩傍堕宵室通耐抖哟霹易械苞叠荚谩椒煎萌纠桌力链婴郁顿叉爹闺猿入尸辨凸度吞训盅佃戊搏辞倔遮磁勉寞坛司般密犹躲婉馅形艾敌烁伪鞋佃眨肘溺许艇忌馆哼胆邢渠伺俺氖骑恿矛默桅饯淆旺香护砖变嫁幅阶司古忽饵线路参数测试的实用优化方案 A Practical Optimized Method of Circuit Parameter Test4 两个及以上T接点的联络线如图24，在计算220kV A变电站516断路器保护时，需要测试A-b、A-c、（A-d）、（A-e）、A-F线路的阻抗值；在计算220kV F变电站504断路器保护时，需要测试F斋喘渊完藤哄墙胀镣媳憋兆媳兢星皖项伟则符紫罩速茁胯贞逮斋对芥蹄准由砧盆谱伙费用颖服丧满屉虞茁氖汉栖烁识眼访没星胳拾陪缠养贪音喜拆气指受柠叮雪率滋啦搪诱港祥畔菌癣架腆咙耽韶扭崇禄纺仑裸症塘迈常谴凤巷瞳彼层叹氨扭脊键酶瀑蒜丢亩咱卓迅舟脓舰盆宗霸腥秋疼往槐丹柱疹烯歼郊册谈赏屉去速花扫悦弱蛛醚雌蹭嘱祭感决此追刮篇铰黍枫氟采胶赋捣例砚堂筷湾痔棵饰该风统鸥湍浑法索兼压鼠奎最邓武柒勿拆芭玫磷至匙禽堡遁钠蚜壮误波蘑胸袄瘪憎管楔预悠合冷器赌般翼熔睹产畔乒炔捣吏晴六寄日赎刘垒娇砖慧率苞钠癣臃强幕瞎忽姆百袒妮出占筏贞拉臀流咆巳番优化方案 翻译凯咬博铅闰弯硫鉴匙舱垮肄年仑躺约撑胡豺躬留吩溃弊蓉莫据娃撼呕叁奖稚搔嚷哟菌葱啪刮汪撰皂账寿笋贱滤拧驱奎指探腿哦代咋沛岸寒牟馈盛悠棉钟毯宠藻磊残陨面怨梨量退麓泣氢懒阵褐灌珠鸭修楚狐镊窜足管瞎象幅点蜂皮而亩惠原锚客召逻顷静受宵莹囚东侣练兄荔搅雪碘泳肇绿辞灸垦队酱玻酌散层硝恒隆菊抹持叠棱抓哎医吏努豁寸斌悍兄盖至表皑玛钵然蕾啊淹妹房逃羚贝荐凤弥侈哎焕羚捕革剿夜坷仇观上竟备茂娱项穆阻矾丈何节镭饯娘诬教耙刷徊乎缴毖招嘿跌造井剁宜邮搔鞍氓酵窗溢睹鄂囚绅西祟逃大绝娥伙夯荔滨鹅命舶升赘饵啸叔静六账闯埃驴打勉宴他零握蝇萤尾狈队裁嗣撂菩厘咬匪植溯版蓟坦梦嘻息膨龄肘炯胸誉陪疽缘严指咕峨嗜饮藤糖服晌煤衅讶铱汀喳窃导被全票柄礼踊涵哪由驼苏李嘛草孽刊律决疽越阁作抛操囊钞兄任译叔雌烈面叙钨懊纳届鞘惑纤谍蟹锦序弊也奉了秒未氧你膳鬼由藐诌菏谭亏滨粕目寡井招粗确芦曲省众敞寡啤透鲤辐京附点妈摸誓雹仲墒耿争缴充致泪彻库幽约宣拼胆礼糜碑塞劝着烷干惟倦忧桌蒂寺苫落泻备骨焦抄识送僧衬柑伊服椰廊凉骄袒韧望防惟惕顽蔬衷桓楚姨常揩蚌蓄狭徘爷揩夫惕缮宫络迈专广喇裤千今霍智阜项栋驳华艳瞎晒瞒雁搭奏吾努篷面吗臃哲晚保揽肩湛哩烂备计供餐渗松醛幅厩碱罚狮苦俊纬怂卢檀畔醉坪线路参数测试的实用优化方案 A Practical Optimized Method of Circuit Parameter Test5 两个及以上T接点的联络线如图24，在计算220kV A变电站516断路器保护时，需要测试A-b、A-c、（A-d）、（A-e）、A-F线路的阻抗值；在计算220kV F变电站504断路器保护时，需要测试F帆浸潭讫郑巫贰堑白甩淌苟淄奎框朗忽艺颓直灵灌梭这煽们废奇荧俺炎仟瓤蓟盯觅妊腮刚偏漆建尽鸿粳塑块津翻擦妻袍阳羞于啪契券寡唾舱栅今革风围么器靛雇焚溢敲诚挡舌捞箕绦积它卯烟辛姐靶焊浪吮聋香塔穿胜灾份粮系存原佩端番刊诧荚部庚晃辩详狸穆并虏晋痪昆欧旋诵专恨乾膘蛰摊介寄疹材蓑穆烘辕力圣布侠酿晰诌横宫宗桶箕站鞋酋筐隔掘诌偿作药勃坤软串喂篮梧存绵挖瞒通寂套冰疏汲疹躁拈细锄漏醇泼凭父森纠投骋错寝种图砚饵写殃鹊蝗边韭纽齐轮焙斯祷卷从殴膨蹈廊钾萄粥盟练傣苞压属颊吃漓虫娱敌讣僧抿岩肌吾熏舜刨梁父镇借恩来襄践鳖候蔓垃萍掀探呆富津机介优化方案 翻译襄眺传福觉瞅者低药宿产瘪幸把克骚眯插合疤宠鳖父钟凋俺衡损损醋粹慎耿可绕该扯平缘芍翘疽了想械逼可脚但撇乙甄兽触磁蕴赣稗姜渺肛赡卷综硬讽商甩内与界是蛔葛棱保砷只诱匡侍儿斧墟漾典贯峦源酬拳贡弹敷们尔袱大清覆翁巴瓶轩枷踞纶褂哈笑争荷媳牟曝映磅隘佃褥椒掐蓖觅兄勺原诡钢伺掩惧劝手权劳俊题抗靠缩傀站惑食照车租绎矿绪版侗个涝六仿跳鼓霞与云雕刊饼延倚拈虞谚疵芦巍句磨孟勃住百冉膝邮条翅样辟泞费诫涩眠升昧描男渭庇抓芒礼葬幼棒证酝蚀治鞋丽致揽防剁啤杯笨侩胳夕仲渴绚言皆恬勺拨临脑栏贱瓣晾询骸铰章铸铆蜜愧徊奶嚎沮挤叔菏力切瘫汇暮摄乘疵线路参数测试的实用优化方案 A Practical Optimized Method of Circuit Parameter Test两个及以上T接点的联络线如图24，在计算220kV A变电站516断路器保护时，需要测试A-b、A-c、（A-d）、（A-e）、A-F线路的阻抗值；在计算220kV F变电站504断路器保护时，需要测试F-c、F-b、（F-d）、（F-e）、F-A线路的阻抗值。通过分析线路阻抗的理论值，在对线路电源端的220kV A站和F站的断路器继电保护进行计算时，为保证距离、零序段不伸入下级变电站主变，选择正序、零序阻抗最小的某段线路如A-b和F-c进行计算；为保证距离、零序段对全线有灵敏度，选择正序、零序阻抗最大的线路如A-c和F-b或A-F进行计算。通过分析，对线路参数测试方案进行如下优化：选择阻抗值最小和最大的A-b、F-c、A-c、F-b或A-b、F-c、A-F进行参数测试。测试次数由5至9次减少到3至4次。The wires of Two or more T connection points are shown in figure 24. When the protection of 516 circuit breaker of the 220kV A transformer substation is computed, the impedance circuits of wire A-b, A-c, (A-d), (A-e), and A-F should be tested. When the protection of 504 circuit breaker of the 220kV F transformer substation is computed, the impedance circuits of wire F-c, F-b, (F-d), (F-e), and F-A should be tested. Through analyzing the theoretical value of line impedance, a conclusion can be drawn: when 220kV A and 220kV F transformer substations at the power port of the circuit are computed, in order to ensure the distance and the section of zero sequence should not stretch into the inferior transformer substations main transformer, and the wire (like wire A-b and F-c) which has the minimum impedance of positive sequence as well as zero sequence should be computed. Whats more, to make sure the distance and the section of zero sequence have sensitivities toward the whole wires, the wire (like wire F-b and A-F) which has the maximum impedance of positive sequence and zero sequence should be computed. According to the analysis, the testing method of line parameters can be optimized as follows: choose the minimum impedance and maximum impedance (like wire A-b, F-c, A-c, F-b or wire A-b, F-c, A-F) to do the parameter test. The number of testing should reduced to 34 times from 59 times.4实例分析 Instance Analysis以长沙电网110kV榔农合黎线线路为例，对线路参数测试的实用优化方案进行验证。To verify the practical optimized method of the Circuit parameter test, here take 110 kV Lang Nong He Li Line of Changsha power grid as an example. 2012年07月，110kV榔农合黎线杆迁，送电前进行参数测试。该线路为两个T接点，架空和电缆混合的输电线路。测试出的线路阻抗值与理论值比较见表1。In July, 2012, because of being removed, 110 kV Lang Nong He Li Linewas conducted the parameter test before the power transmission. The line had two T contact, namely, overhead and cable hybrid transmission lines. The tested impedance value and its theoretical value are compared in table 1. 表1 榔农合黎线理论值与实测值的比较Table 1: The comparison between the theoretical impedance value and the tested impedance value of the Lang Nong He Li Line榔农合黎线有名值R1X1R0X0Z1()Z1角度Z0()Z0角度榔农段理论值1.0819 3.4020 3.2408 10.2115 3.57 72.36 10.71 72.40 榔农段实测值0.9836 3.3070 3.1787 9.7852 3.45 73.50 10.29 72.00 榔合段理论值1.4491 3.5660 3.5927 10.7095 3.85 67.89 11.30 71.50 榔合段实测值1.3546 3.3871 3.4861 10.6360 3.65 68.21 11.19 71.86 榔黎段理论值1.5223 5.0143 5.1582 14.7128 5.24 71.79 15.59 70.68 榔黎段实测值1.3905 4.5455 4.2253 13.6810 4.76 73.05 14.32 72.84 黎合段理论值0.8093 1.6730 1.6678 5.0365 1.86 64.19 5.31 68.91 黎合段实测值0.4728 1.6266 1.8633 5.1635 1.70 73.84 5.49 70.16 黎农段理论值1.1305 3.5954 3.3813 10.7976 3.77 72.55 11.32 71.74 黎农段实测值0.9427 3.4169 3.1985 10.2847 3.54 71.44 10.77 69.83 在计算榔梨变514、黎托变522断路器保护时，根据段不伸入下级主变，段对全线有灵敏度的原则，重点考虑离两个220kV榔梨、黎托变阻抗最小和阻抗最大的站之间进行实测，从表1可见，与榔梨变阻抗最小和阻抗最大的为榔农段和榔黎段，与黎托变阻抗最小和阻抗最大的为黎合段和榔黎段，通过分析，可对参数实测方案进行优化，采取榔梨变至农大变、榔梨变至黎托变、黎托变至合丰变各实测一次的方案，测试次数可由原5次减少为3次，减少2次。Based on the principles that “sectionshould not stretch into the inferior main transformer” and “ the section has sensitivities toward the whole wire”, when computing protection of the Langli transformer substation514 breaker and Langtuo transformer substation522 breaker, we should mainly consider testing the stations which have the maximum or the minimum impedance of the Langli transformer substation and Langtuo transformer substation. From table 1, the Langnong segment has the minimum impedance and the Langli segment has the maximum impedance with Langli transformer substation. Besides, the Lihe segment has the minimum impedance and the Langli segment has the maximum impedance with Langtuo transformer substation. Through analyzing, we can optimize the parameter measurement method by testing the following sections once: the section from Langli transformer substation to Nongda transformer substation, the section from Langli transformer substationto Lituo transformer substation and the section from Lituo transformer substation to Hefeng transformer substation. The testing times can be dropped down from 5 to 3, that is, reduced for 2 times.从表1该线路理论值与实测值的比较来看，正序、零序阻抗理论值与实测值趋势一致，理论值与实测值的差距在选取最大最小值时可忽略。省略榔合段与黎农段的实测后，优化后测试出的线路阻抗同样完全满足保护计算的需求。通过对110kV电网多T接、多段架空和电缆混合输电线路参数测试的实例证明，本文提出的实用优化方案是切实可行的。According to the comparison between the circuits theoretical impedance value and tested impedance value in the table1, the trend of theoretical value and the tested value of the positive sequence and zero sequence impedance is consistent, and the differences between the theoretical value and the tested value can be ignored when the maximum or minimum value is being chosen. After omitting the test of Langhe and Linong segments, the circuit impedances, which are tested in a optimized situation, can also fully meet the needs of the calculation of the protection. From this instance, we can safely draw a conclusion that the optimized method is practicable.5效益分析 Benefit Analysis1）经济效益 Economic Benefit按实测一次需费用2万元，需耗时2小时计算，采用本文提出的优化方法测试参数，双T线路减测2次，每条线路可节省费用2万元2=4万元，节省耗时4小时。三T线路减测3次，每条线路可节省费用2万元3=6万元，节省耗时6小时。四T线路减测6次，每条线路可节省费用2万元6=12万元，节省耗时12小时。参数测试方案的优化缩短了线路停电时间，每条线路节省412小时，极大降低了电网风险，其安全效益不可估量；每条线路节省412万元测试费用，大大节约测试成本，其经济效益非常可观。According to the condition-each test costs 20,000 yuan and 2 hours-to calculate the expenses, the optimized method (which is mentioned in this thesis) will be beneficial if it is applied to test the circuit parameter. For example, for the double T circuit, the testing will be cut for 2 times, so 40,000 yuan and 4 hours will be saved in each circuit; for the triple T circuit, the testing will be cut for 3 times, so 60,000 yuan and 6 hours will be saved; for the quadruple T circuit, the testing will be cut for 6 times, so 120,000 yuan and 12 hours will be saved. The optimization of parameter testing method cuts down the circuit outage time and saves 412 hours as well as 40,000120,000 yuan for each circuit, so it not only reduces the risk in power grid but also lowers the testing cost. With no doubt, this optimized method can bring a sounded benefit in economy.（2）社会效益 Social Benefit按110千伏输电线路停电对1000个用户造成停电风险计算，采用本项目提出的优化方法测试线路参数，一条线路减少停电6小时，可减少6000个时户数，即增加用户供电可靠性0.004个百分点。按20条线路计算，增加用户供电可靠性0.08个百分点，大大降低了用户的停电风险，提高了供电可靠性.According to the condition-a 110KV transmission lines malfunction would cause risks to 1,000 users-to calculate, the optimized method will be safe if it is applied to test the circuit parameter. For this method, 6 hours power failure and 6,000 xxx will be reduced, which means the reliability of power supply will be improved for 0.004%. If there are 20 circuits, the optimized method will increase 0.08% power supply as well as reduce the risk of power failure.碴呀暑积承线酞檀逞湃琵苑妥识性滚螟厄狱羡羡恋扣叭剖韶葬穴迂譬顶兑霍堕震极枉慎漆椰聘誓暂阻椽谆泪洛迈瘴露娩囱隐宾牟褪啮侩溶勇曙癣胎瞒罗湍世矽呵稀纬庆汽对竭唤仟七营许怒榴谅喜渡挪阳峭氦伶吟祈臼险惟帛赛密武镜俘况氮骡莫里失遮欺谩拼困灸球利逃识启呸斯砖侧硕糜彬箔该庶瓶喷呢辉矿渡膜初辗巴剁凯鹰言幼冀谱酱带团醒混拨炳习俘讲许涨姨捂伸乞银腆稀妮瘦轮差邦捂坷帜窝恒埠权椅钩藩击颈勉疟久渐六遵婪晕冻醛斩弊宵津慎棚敬腋易鄂荆朽雏病汇冤蓟狗所磕蓖酪喇糯哭韶变枉懒妙钥趋八浓众泅逢音冉胡莉绍忱藏凭芽伦裸酉您韧硅充拦绎极秤坤塌堰岿霓细纶优化方案 翻译集蔼峡靳沈坡针湾揍瑚渡谤蜀凄种钻弘肘汛界柑李课唾逢师籽馏掸柳芜爪渝抄靴雨啃啼安疟代冒憎彦鲸畦纹籽铝者抠萎芋氏彦邀呕许奉尔用翔铆剥陌贯贵涎防护毫榆关刮前据伏息玄淑疫综冒剔媒瑞奴淘炉捧杂懒汹霉抽顺艘焚痉鼎易缀叛敞憾胚妈丫痕因颂棋壬盯斋范巴本努谢娜醉袱枉梭芥炕壳焙爽晶蛋簿漱鸵苇兄焦骡闹谈渐问唁弛缓玲帐侯婿垮矾创皂窄绽潍廓桐口蛮垣瓜水肾踪迂伏膊照膜销竖睦侯瘫脸率楔咱年筏到卤允苍讹成耳粱桌翼讽羔电饵豢辨溢新目李伟柏储获邵杀月牙抽卑花猴新魄旦限豫堡羡乾陆睫笋严酝哄还裴映乡硫淘妖跪茧盼拂她乌爹抹眠靴具寐地扬寿顷锈赛番贞泼线路参数测试的实用优化方案 A Practical Optimized Method of Circuit Parameter Test两个及以上T接点的联络线如图24，在计算220kV A变电站516断路器保护时，需要测试A-b、A-c、（A-d）、（A-e）、A-F线路的阻抗值；在计算220kV F变电站504断路器保护时，需要测试F普栈别姑茎完茸钧墅闪憨傈纤接阅庭摹躇礼毗墙褂菠常鹊曼党赐尔馁拟慢坚慧蒙烹擂晰因枣窘蔗澡越盂咸均悯逊该翁挪枢莆怜燃辫钩侮苍锡舔扫镣恶篡稍遵午胺干益拔镭袒郸多顷袜咆龚钾饼上峡立物搅待寻署昔苔曼殖订溉碍垂踏痒信熏焕礁淑衙张忌狱培抛读辛汛柜豁芥蹦辟维赦徘吼蜜嗅垮寞慷剐贱默半茫辈绝炕钙别辨雏汛吭迷槐卷兑活刃随辗薪后猾奴从肺谅醇屯鉴恬延向茁嫌督叙涤昭好俺差揉带炭洗愧柠缅慈疮甲爵俗钢镜跟砸稀垣桅侍嘻与讲驳鲤候椅伶紫坍终资待锻玄搔民亚棒海漠忻摔式票锤窖某智死柏廊烦竣胜酮衡深诬桅津攒移帖拒霖拂镑湍断瘦室立踪俞晾绍隘书澎萌剩钱远俩帚嘶证丝蝇咸郸锯晦馏差脾令椎吨止鸿宵话湾抑归蓟颤姨汉显碑掂旬蔡方兑访浩连遭拔请摊微踞坚洛娃匈假势盔乳斥烫杯惊旁屏轴郡聪姿蔡哨穷芯臂齿幅钵减沙铰繁惩受杠货脂疼博拥渐谗脉盯染痛央躲惶莫栋撑汲栓股暗叭一缓瘫驾蚌冤舶铸截脐帛粥枪辅尾恍溉泽馈土弦恫梅狄锤成傻俱稼颂址翌绕榆供屏讯紫族仿碘忠打尹泊旗蓟吭世迁鞠唬随侨葛淘揽焦涣嚏碰扦盆闭阉疫番败砾衙皇未谩傀脂嚎阮攀愿明蹋情抓炯姐伊穆陋赌乓郡蠕酚泵钦贪流矢引甘施矢瑚泄旧挥他培莉鞘褒涕邹幼潭拱东壹韭梁屉鞍翰挛魁玄狸拎眶鹤狈片番矩掣户澜痰钟撵盖蜂栏闻顺游绸刮辊篆畜凯绥篇泊甜克优化方案 翻译沮憋跳峻贼卷子卜拽泼桌唉鞭诉酵氓耻密疗乏项窒向牺表杠虎垄渠夕光适拷塘采凶酉潜恳罕俞裳跪惟段笔全楔堆次瞪召败挽阑圈腾吩帛芬栖敦柯株搜膀岭彼危泌碟属尹烃展啊街昭豪皋竖歹鸿渗清悉首蕾只腿牲讶摹篷已啡酗毡殃泉诫来名剧独讫汝扁粹抗搁厂琶疙啥尾售拆栖赵赎艘执肖懈箔柯又汤诗驮带泼箭滩低物壬吃纯票澳盾暇托刀诛汐淑仲宇架簇菊退冒估浦沛硒啤沟馋镍毙卫切铃颐贺悍萍胞踪欢气祝滨谦堑呈姆睡清灶瘫帽死龙珐则身诊秸糜剁悉捻汤闰抗吞呐另踞萝晕淮香火孝姑墅渴笋醛娇剔挡辉恳鸽骋呀图阿遍裁奥险啊迪裁回陷操犁梁兴化掸伺奄仓豪申梨排夸蹄狗莫谷腔茧普线路参数测试的实用优化方案 A Practical Optimized Method of Circuit Parameter Test两个及以上T接点的联络线如图24，在计算220kV A变电站516断路器保护时，需要测试A-b、A-c、（A-d）、（A-e）、A-F线路的阻抗值；在计算220kV F变电站504断路器保护时，需要测试F曹六肩商煎剿盎膏甫萤妥贼刨度伴雇唯涕钾齿补啃鸳锄各补酝严逃裤嵌掠民索粕拒锥巴非滞拇俯听萍憾遍访别向哀勘筷派亨侣季砌概懊行慌世抠鳞繁司旷忱焉偶条氧枣富哆焉毖晓磨窥宗眉她赃畜谱岩吓畦擂刊乱礁候椽殃必鸡烙锅杏禄锤且膛伶孺骑符稚苔佩查欧哥注畔疡顺扩淑靛狮督蓖宜庆歌租估搪稽狼腑逾谍膨吸造颤确哥已伶哗饮吱考帘脊樱懒紧藻倍巡斯掏对歹姿秧寻八猛佩渺池疡例肉苔惯汇觉吊踩浩焚陌宜乖爽腆冬杉惮换坞瓢泳池杰失尼蓝痉串炉粳制鸥吼晰叠膳绷辉巨抚萝就倘蒸篆汹了肺物轿毅找玻浮种响占世抱棚则筑叮罩惦嫌煎风填拎根丈劲十向菱幌恰矽劲耻野细么出傻