基于灵敏度修正的含风电场电力系统可用输电能力计算
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摘要
为了在线评估风电场功率波动对可用输电能力(ATC)的影响,本文提出了基于灵敏度修正的含风电场电力系统ATC计算方法。基于风电场输出功率波动性的特点,在风电机组功率波动引起其他发电机有功出力方式发生变化情况下,利用灵敏度修正支路有功功率,校正支路有功对控制参数的灵敏度,通过考虑支路热稳定约束,建立ATC与系统发电机有功功率变化参数的映射关系,并根据电力系统当前运行点的特性确定了灵敏度应用的有效区间,快速计算由于风电机组功率变化导致常规发电机不同出力方式下的ATC。对含风电场的IEEE-30节点系统仿真结果表明,本文所提方法能够准确计算由于风电波动导致常规机组运行方式变化情况下的ATC,且计算时间满足在线计算要求。
The power fluctuation of wind farm will change the ATC( Available Transfer Capability) of wind integrated power system. In order to evaluate the influence of wind farm,we put forward a method to evaluate the ATC with sensitivity correction. Considering that the output power of wind farms is fluctuating,when the active outputs modes of other generators vary caused by the power fluctuation of the wind turbines,the sensitivity of the branch active power to control parameters can be calibrated by using the sensitivity to correct the branch active power. Furthermore,considering the branch thermal stability constraint,the mapping relationship between ATC and operating mode parameters of generators can be established,and the valid interval of applied sensitivity can be ensured according to the characteristics of the current operating point of power system,therefore,the new ATC under different modes of conventional generator can be quickly calculated. Test results on IEEE 30-bus system show that the proposed method can response the generator output change and renew ATC efficiently and accurately.
The power fluctuation of wind farm will change the ATC( Available Transfer Capability) of wind integrated power system. In order to evaluate the influence of wind farm,we put forward a method to evaluate the ATC with sensitivity correction. Considering that the output power of wind farms is fluctuating,when the active outputs modes of other generators vary caused by the power fluctuation of the wind turbines,the sensitivity of the branch active power to control parameters can be calibrated by using the sensitivity to correct the branch active power. Furthermore,considering the branch thermal stability constraint,the mapping relationship between ATC and operating mode parameters of generators can be established,and the valid interval of applied sensitivity can be ensured according to the characteristics of the current operating point of power system,therefore,the new ATC under different modes of conventional generator can be quickly calculated. Test results on IEEE 30-bus system show that the proposed method can response the generator output change and renew ATC efficiently and accurately.
引文
[1]李中成,张步涵,段瑶,等(Li Zhongcheng,Zhang Buhan,Duan Yao,et al.).含大规模风电场的电力系统概率可用输电能力快速计算(Fast calculation of probabilistic available transfer capability in power systems including large-scale wind farms)[J].中国电机工程学报(Proceedings of the CSEE),2014,34(4):505-513.
[2]李娟,薄明明,赵迎春,等(Li Juan,Bo Mingming,Zhao Yingchun,et al.).动态连续潮流与自适应混沌粒子群结合计算静态电压稳定裕度(Calculation of static voltage stability margin based on dynamic continuation power flow and adaptive chaotic particle swarm optimization algorithm)[J].电工电能新技术(Advanced Technology of Electrical Engineering and Energy),2014,33(1):36-41.
[3]杨菲,刘奭昕,王海霞,等(Yang Fei,Liu Shixin,Wang Haixia,et al.).大型互联电网可用输电能力分解计算法(A decomposition method to calculate available transfer capability of large interconnected power grid)[J].电网技术(Power System Technology),2014,38(1):140-145.
[4]Ejebe G C,Waight J G,Sanots-Nieto M,et al.Available transfer capability calculation[J].IEEE Transactions on Power System,1998,13(4):1521-1527.
[5]刘文霞,吴方权(Liu Wenxia,Wu Fangquan).风电场接入系统的静态电压稳定分析(Static voltage stability analysis of power systems with wind farm groups)[J].电工电能新技术(Advanced Technology of Electrical Engineering and Energy),2014,33(6):13-17.
[6]郭远帆,杨峰,董朝霞(Guo Yuanfan,Yang Feng,Dong Zhaoxia).应用粒子群优化算法求解可用输电能力(Available transfer capability calculation using particle swarm optimization algorithm)[J].电工电能新技术(Advanced Technology of Electrical Engineering and Energy),2006,25(4):52-57.
[7]汪峰,白晓民(Wang Feng,Bai Xiaomin).基于最优潮流方法的传输容量计算研究(OPF based transfer capability calculation)[J].中国电机工程学报(Proceedings of the CSEE),2002,22(11):35-40.
[8]孙英云,何光宇,梅生伟(Sun Yingyun,He Guangyu,Mei Shengwei).基于Filter集合的内点最优潮流新算法(A new optimal power flow algorithm based on filter interior point method)[J].电工电能新技术(Advanced Technology of Electrical Engineering and Energy),2007,26(2):29-33.
[9]初壮,王亮亮,蔡国伟(Chu Zhuang,Wang Liangliang,Cai Guowei).考虑线路有功传输约束的静态电压稳定分析(Static voltage stability analysis considering active power of transmission line constraints)[J].电工电能新技术(Advanced Technology of Electrical Engineering and Energy),2012,31(2):60-64.
[10]蔡晓波,吴政球,匡文凯,等(Cai Xiaobo,Wu Zhengqiu,Kuang Wenkai,et al.).基于直流分布因子的可用输电能力灵敏度分析(Study on sensitivity of available transfer capability based on DC distribution factors)[J].电网技术(Power System Technology),2006,30(18):45-48.
[11]Gravener M H,Nwankpa C.Available transfer capability and first order sensitivity[J].IEEE Transactions on Power Systems,1999,14(2):512-518.
[12]Greene S,Dobson I,Alvarado F L.Sensitivity of transfer capability margins with a fast formula[J].IEEE Transactions on Power Systems,2002,17(1):34-40.
[13]刘皓明,严正,倪以信,等(Liu Haoming,Yan Zheng,Ni Yixin,et al.).快速计算电网可用输电能力的交流灵敏度方法(An AC power flower based sensitivity method for the fast calculation of available transfer capability)[J].电力系统自动化(Automation of E-lectric Power Systems),2003,27(19):11-15.
[14]孙荣富,宋永华,张昌华,等(Sun Rongfu,Song Yonghua,Zhang Changhua,et al.).基于线路修正传输极限和交流分布因子的ATC快速计算(ATC calculation based on modified transfer limits and AC distribution factors)[J].电力自动化设备(Electric Power Automation Equipment),2007,27(8):1-5.
[15]罗经纬(Luo Jingwei).基于高阶泰勒级数快速计算ATC的研究(The research based on high order Taylor series fast calculation of ATC)[D].长沙:湖南大学(Changsha:Hunan University),2012.
[16]舒文倩(Shu Wenqian).基于交流灵敏度修正的快速ATC计算(Available transfer capability calculation based on fast correction of AC sensitivity)[D].宜昌:三峡大学(Yichang:China Three Gorges University),2015.
[17]王成山,孙玮,王兴刚(Wang Chengshan,Sun Wei,Wang Xinggang).含大型风电场的电力系统最大输电能力计算(Total transfer capability calculation of power system including large scale wind farm)[J].电力系统自动化(Automation of Electric Power Systems),2007,31(2):17-21.
[2]李娟,薄明明,赵迎春,等(Li Juan,Bo Mingming,Zhao Yingchun,et al.).动态连续潮流与自适应混沌粒子群结合计算静态电压稳定裕度(Calculation of static voltage stability margin based on dynamic continuation power flow and adaptive chaotic particle swarm optimization algorithm)[J].电工电能新技术(Advanced Technology of Electrical Engineering and Energy),2014,33(1):36-41.
[3]杨菲,刘奭昕,王海霞,等(Yang Fei,Liu Shixin,Wang Haixia,et al.).大型互联电网可用输电能力分解计算法(A decomposition method to calculate available transfer capability of large interconnected power grid)[J].电网技术(Power System Technology),2014,38(1):140-145.
[4]Ejebe G C,Waight J G,Sanots-Nieto M,et al.Available transfer capability calculation[J].IEEE Transactions on Power System,1998,13(4):1521-1527.
[5]刘文霞,吴方权(Liu Wenxia,Wu Fangquan).风电场接入系统的静态电压稳定分析(Static voltage stability analysis of power systems with wind farm groups)[J].电工电能新技术(Advanced Technology of Electrical Engineering and Energy),2014,33(6):13-17.
[6]郭远帆,杨峰,董朝霞(Guo Yuanfan,Yang Feng,Dong Zhaoxia).应用粒子群优化算法求解可用输电能力(Available transfer capability calculation using particle swarm optimization algorithm)[J].电工电能新技术(Advanced Technology of Electrical Engineering and Energy),2006,25(4):52-57.
[7]汪峰,白晓民(Wang Feng,Bai Xiaomin).基于最优潮流方法的传输容量计算研究(OPF based transfer capability calculation)[J].中国电机工程学报(Proceedings of the CSEE),2002,22(11):35-40.
[8]孙英云,何光宇,梅生伟(Sun Yingyun,He Guangyu,Mei Shengwei).基于Filter集合的内点最优潮流新算法(A new optimal power flow algorithm based on filter interior point method)[J].电工电能新技术(Advanced Technology of Electrical Engineering and Energy),2007,26(2):29-33.
[9]初壮,王亮亮,蔡国伟(Chu Zhuang,Wang Liangliang,Cai Guowei).考虑线路有功传输约束的静态电压稳定分析(Static voltage stability analysis considering active power of transmission line constraints)[J].电工电能新技术(Advanced Technology of Electrical Engineering and Energy),2012,31(2):60-64.
[10]蔡晓波,吴政球,匡文凯,等(Cai Xiaobo,Wu Zhengqiu,Kuang Wenkai,et al.).基于直流分布因子的可用输电能力灵敏度分析(Study on sensitivity of available transfer capability based on DC distribution factors)[J].电网技术(Power System Technology),2006,30(18):45-48.
[11]Gravener M H,Nwankpa C.Available transfer capability and first order sensitivity[J].IEEE Transactions on Power Systems,1999,14(2):512-518.
[12]Greene S,Dobson I,Alvarado F L.Sensitivity of transfer capability margins with a fast formula[J].IEEE Transactions on Power Systems,2002,17(1):34-40.
[13]刘皓明,严正,倪以信,等(Liu Haoming,Yan Zheng,Ni Yixin,et al.).快速计算电网可用输电能力的交流灵敏度方法(An AC power flower based sensitivity method for the fast calculation of available transfer capability)[J].电力系统自动化(Automation of E-lectric Power Systems),2003,27(19):11-15.
[14]孙荣富,宋永华,张昌华,等(Sun Rongfu,Song Yonghua,Zhang Changhua,et al.).基于线路修正传输极限和交流分布因子的ATC快速计算(ATC calculation based on modified transfer limits and AC distribution factors)[J].电力自动化设备(Electric Power Automation Equipment),2007,27(8):1-5.
[15]罗经纬(Luo Jingwei).基于高阶泰勒级数快速计算ATC的研究(The research based on high order Taylor series fast calculation of ATC)[D].长沙:湖南大学(Changsha:Hunan University),2012.
[16]舒文倩(Shu Wenqian).基于交流灵敏度修正的快速ATC计算(Available transfer capability calculation based on fast correction of AC sensitivity)[D].宜昌:三峡大学(Yichang:China Three Gorges University),2015.
[17]王成山,孙玮,王兴刚(Wang Chengshan,Sun Wei,Wang Xinggang).含大型风电场的电力系统最大输电能力计算(Total transfer capability calculation of power system including large scale wind farm)[J].电力系统自动化(Automation of Electric Power Systems),2007,31(2):17-21.