Suzhou Electric Appliance Research Institute
期刊號: CN32-1800/TM| ISSN1007-3175

Article retrieval

文章檢索

首頁 >> 文章檢索 >> 往年索引

基于故障影響范圍的風(fēng)險場景篩選方法

來源:電工電氣發(fā)布時間:2023-03-04 10:04 瀏覽次數(shù):293

基于故障影響范圍的風(fēng)險場景篩選方法

裴超1,王大磊2,馬驍1,夏彥1,王曼1,張凌躍1,汪昌霜1
(1 國網(wǎng)重慶市電力公司市北供電分公司, 重慶 401147;
2 國網(wǎng)重慶市電力公司市區(qū)供電分公司, 重慶 400015)
 
    摘 要:在電網(wǎng)風(fēng)險評估中,需要考慮的風(fēng)險場景眾多,特別是多重故障場景數(shù)量巨大,給風(fēng)險評估指標(biāo)的在線計算造成了嚴(yán)重困難。提出了一種基于故障影響范圍的風(fēng)險場景篩選方法,該方法將存在支路越限的 N-1 故障和存在解列情況的 N-2 故障歸入風(fēng)險場景集,并基于支路開斷因子確定 N-1 故障影響范圍;分析了各 N-2 故障的故障影響范圍交疊情況,在此基礎(chǔ)上采用快速潮流計算,根據(jù)是否存在支路潮流越限篩選得到風(fēng)險場景集。仿真算例表明,上述方法可大幅提升風(fēng)險場景,特別是多重故障風(fēng)險場景的辨識速度,更好滿足了在線風(fēng)險評估的應(yīng)用要求。
    關(guān)鍵詞: 電網(wǎng)風(fēng)險評估;多重故障;快速潮流計算;風(fēng)險場景篩選
    中圖分類號:TM711     文獻(xiàn)標(biāo)識碼:A     文章編號:1007-3175(2023)02-0029-05
 
A Risk Contingencies Selection Method Based on Fault Influence Range
 
PEI Chao1, WANG Da-lei2, MA Xiao1, XIA Yan1, WANG Man1, ZHANG Ling-yue1, WANG Chang-shuang1
(1 State Grid Chongqing Electric Power Company Shibei Power Supply Company, Chongqing 401147, China;
2 State Grid Chongqing Electric Power Company Shiqu Power Supply Company, Chongqing 400015, China)
 
    Abstract: A lot of risk scenarios need to be considered in power grid risk assessment, especially there are huge numbers of multi-contingencies scenarios which have caused serious problems for online calculation of risk assessment indicators.The paper proposes a risk contingencies selection method according to fault influence range. It includes N-1 faults with branch out-of-limit and N-2 faults with splitting into the risk scenario set and determines the influence range of N-1 faults based on the branch outage factor.Besides, it also analyzes the overlapping of fault influence ranges of N-2 faults, which is the basis of selecting risk scenario sets according to the existence of a branch flow out of limit through fast power flow calculation. The simulation results show that this method can significantly improve the identification speed of multi-contingencies risk scenarios and meet the requirements of online risk assessment in a better way.
    Key words: power grid risk assessment; multi-contingencies; fast power flow calculation; risk contingencies selection
 
參考文獻(xiàn)
[1] 宋曉喆,汪震,甘德強(qiáng),等. 臺風(fēng)天氣條件下的電網(wǎng)暫態(tài)穩(wěn)定風(fēng)險評估[J] . 電力系統(tǒng)保護(hù)與控制,2012,40(24):1-8.
[2] MCCALLEY J D, VITTAL V, ABI-SAMRA N. An overview of risk based security assessment[C]//1999 IEEE Power Engineering Society Summer Meeting,1999.
[3] LI Wenyuan.Risk Assessment of Power Systems:Models, Methods, and Applications[J].Interfaces,2014,36(2):179-180.
[4] 張勇軍,蔡廣林,邱文鋒. 基于最優(yōu)乘子潮流估計的故障篩選與排序[J] . 電工技術(shù)學(xué)報,2010,25(1):123-138.
[5] 王守相,張建軍. 基于統(tǒng)計學(xué)習(xí)的模糊暫態(tài)穩(wěn)定事故篩選與排序[J] . 電工技術(shù)學(xué)報,2006,21(3):112-117.
[6] 王民有,吳際舜. 一種新穎的預(yù)想事故自動選擇算法[J]. 上海交通大學(xué)學(xué)報,1986,20(3):84-91.
[7] 王守相,趙瑋,王成山,等. 計及不確定性的預(yù)想事故自動選擇區(qū)間方法[J] . 電力系統(tǒng)自動化,2007,31(20):27-31.
[8] YU Jiaxi, GUO Zhizhong, BAI Xuefeng, et al.Power system static security analysis with time process-oriented method[J].Transactions of China Electrotechnical Society,2010,25(10):142-149.
[9] 宋曉通. 基于蒙特卡羅方法的電力系統(tǒng)可靠性評估[D]. 濟(jì)南:山東大學(xué),2008.
[10] 陳小青. 基于蒙特卡洛模擬的電網(wǎng)調(diào)度運(yùn)行風(fēng)險評估研究[D]. 長沙:湖南大學(xué),2013.
[11] 陳祎, 郭瑞鵬, 葉琳, 等. 電網(wǎng)斷面熱穩(wěn)定限額計算模型及方法[J] . 電力系統(tǒng)自動化,2012,36(17):20-24.
[12] 李傳棟,張逸,楊桂鐘,等. 基于故障影響域的多重預(yù)想故障集篩選方法[J] . 電力系統(tǒng)保護(hù)與控制,2015,43(14):92-99.
[13] LIU H, SUN Y, WANG P, et al.A novel state selection technique for power system reliability evaluation[J].Electric Power Systems Research,2008,78(6):1019-1027.
[14] JIA Y, WANG P, HAN X, et al.A Fast Contingency Screening Technique for Generation System Reliability Evaluation[J].IEEE Transactions on Power Systems,2013,28(4):4127-4133.
[15] 吳際舜. 電力系統(tǒng)靜態(tài)安全分析[M] . 上海:上海交通大學(xué)出版社,1985.
[16] SUBCOMMITTEE P M.IEEE Reliability Test System[J].IEEE Transactions on Power Apparatus & Systems,1979,PAS-98(6):2047-2054.