幻灯片 1

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糖竟郭
5 years ago
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1 Application of Stability Control System in Xinjiang

2 Contents Profile Problem Solution Prospective

3 Profile Xinjiang Land, 1/6 Natural gas, 1/3 Oil, 1/4 Coal, 40% Wind, 40% Installation 21GW Export 1GW

4 Profile 凤凰乌北吐鲁番哈密巴州安西酒泉 1900km, 2010 日月山西宁拉西瓦金昌官亭兰州东德阳贺兰山白银黄河武胜宝鸡 HVDC 平凉 ±660,4000MW,1335kM HVDC 乾县信义 HVDC B-B HVDC 120kV,360MW 120kV,750MW ±500kV,3000MW,570kM

5 Profile North 3560km

6 Problem Wind,, North Voltage & transient Stability => Bottleneck for export 3560km

7 Problem North 3560km 1400+MW, 43% Thermal, dynamic and Transient Stability at different nodes => Bottleneck for 500+MW

8 North Problem Majority of installation and load, 80% 3560km Overload after trip of parallel line

9 Problem North Import power via 750/220kV in parallel 750kV Double Circuit on Same Tower ==> Overload, Islanding 3560km Thermal & frequency Stability

10 Problem North 3560km Import power LOE->voltage stability Radial topology- >Subject to being islanded

Solution Regional Stability Control System Master Station Control Center Event-driven mechanism Optical Fiber Substation A: Slave Station 1 Substation B: Slave

11 Solution Regional Stability Control System Master Station Control Center Event-driven mechanism Optical Fiber Substation A: Slave Station 1 Substation B: Slave Station 2 Substation C: Slave Station n Optical Fiber Optical Fiber Substation D Execution 1 Generation A: Execution n Substation E: Execution 1 Generation B: Execution n

12 Solution North 3560km SCS 2007

13 Solution North 3560km SCS

14 Solution 玛纳斯电厂 220kV 乌北站新湖执行站芳草湖执行站 220kV 南湖电厂骆驼圈子执行站西郊执行站红光变执行站天光电厂北郊执行站小营房变执行站新城变执行站台远变库车电厂库车城东执行站阿克苏变阿克苏北城执行站英吉沙玉龙变下坂地前海电厂喀什中心变执行站岳普湖执行站鄯善执行站园区变执行站葡萄沟执行站小草湖变高昌执行站达浪坎执行站托克逊变龟兹变莎车变喀什变红帆察汗乌苏电厂金沙金鹿变楼兰变拜城电厂 750kV 敦煌变 750kV 酒泉变 750kV 金昌变 750kV 巴州变恰甫其海特克斯站铁厂沟站宁远站额敏执行站和什特洛盖执行站冬古列执行站恰夏执行站晨光执行站伊宁县变执行站西郊变执行站中心执行站 750kV 凤凰变 750kV 乌北站 750kV 吐鲁番站 750kV 哈密站 750kV MS 220kV MS Execute S 额尔齐斯站喀腊塑克冲乎尔水电托克逊重工业园塔什店电厂执行站市南变执行站中心变执行站西尼尔执行站城西变执行站市北变执行站库车城西执行站沙雅执行站新和执行站阿克苏中心执行站五团执行站阿瓦提执行站阿图什执行站北郊变执行站东郊变执行站 F3 F2 F1 F0 F1 F2 F3 F5 F4 红旗坡执行站胡杨执行站丰收三场执行站牌楼执行站色力不亚执行站巴楚执行站喀什燃机电厂 220kV 巴州站库尔勒变吉林台二级城西执行站苇二电厂碱梁执行站红雁池二电厂神华矸石电厂红雁池电厂老满城头屯河五家渠执行站长宁昌热三期三宫岗信铝业柳中执行站材园执行站农盛变执行站 220kV 哈密站交河变 220kV 吐鲁番站龙湾站吉木乃风电青河站富蕴站皇宫站沙湾站青年站波波娜玛电三期石河子东石河子西乌苏电厂赛尔电厂锦疆电厂和丰站奎屯站吉林台电厂下野地站克拉玛依别迭里小石侠徐矿电厂白水变洛浦变执行站墨玉变执行站和田中心变执行站 220kV 凤凰站达风变达风变 140+ S S North

15 North Solution Wind,, Voltage & transient Stability Voltage & transient => Stability Bottleneck for export => Bottleneck for ->Generator rejection export 3560km

16 Solution North 3560km Import power LOE->voltage stability ->Load shedding ->Trip shunt reactor to maintain the voltage

17 North Solution Overload after trip of parallel line 3560km ->Instantaneous generator rejection based on pre-fault power flow and fault information ->Delayed generator rejection based on post-fault overload, two stages.

18 Solution North Import power via 750/220kV in parallel 750kV Double Circuit on Same Tower ==> Overload, Islanding 3560km ->Load shedding ->Trip shunt reactor to maintain the voltage

19 Results Solution 10+ operations Jun 24,2007, the first day of commercial operation Aug 10, 2007 Aug 21, 2007 SCS in south part, increases supply capability 140MW

20 Solution Some key points Detection on generator slow shutdown Detection on Loss of excitation Direct detection based on electric quantities measurements Signal from LOE Load shedding allocation Based on priority in local area Based on sensitivity among different areas

21 ±800kV HVDC to Zhengzhou, 8000MW,2210km Constructed from 2012 Prospective ±1100kV HVDC to Chengdu 10000MW,2700km Constructed before 2015 ±800kV HVDC to Chongqing 8000MW,2300km Constructed from 2012 Installation 77.5GW,2015 Export: 30GW, GW, 2020 Local load: 30GW, 2015 To 750kV HVAC

22 Prospective High portion of Export 5% => 50% 750kV/220kV in parallel Overload Angle and voltage stability HVDC Blocking Frequency stability SCS is still needed!

23 23 Thanks for Your Attention

2004 ( ) ( ): Shanxi Xishan Coal and Electricity Power Co.,Ltd x

2004 ( ) ( ): Shanxi Xishan Coal and Electricity Power Co.,Ltd x 2004 ---------------------------------- ---------------------- ------------------------------ -------------------------------------- 9 ---------------------------------- ----------------------------------------