基于综合贡献度指标的紧急减负荷控制多目标优化方法
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摘要
紧急减负荷控制是应对特高压直流闭锁故障后输电断面潮流越限的重要技术措施。提出一种基于综合贡献度指标的紧急减负荷控制多目标优化方法,考虑可中断负荷对负荷切除总量、用户切除总数这2个目标函数的不同贡献程度,通过并行计算形成分布均匀的Pareto解。考虑发电机的二次调频能力计算负荷切除后的系统潮流,采用交流潮流校核对输电断面的功率越限量进行修正,求解满足计算精度要求并能够完全消除功率越限量的负荷控制方案。
Emergency load shedding is an essential technical measure against the power flow violation-limit of transmission section caused by the blocking faults of UHVDC( Ultra High Voltage Direct Current). A multi-objective optimization method for emergency load shedding based on comprehensive contribution index is proposed,which considers the different contribution degrees of interruptible load on the objective functions of the total load shedding capacity and the total quantity of load shedding customers and forms well-distributed Pareto solutions by parallel calculation. The power flow after load shedding is calculated considering the secondary frequency regulation of generators and the over-load of transmission section is corrected by the AC power flow check,obtaining the load shedding scheme,which meets the requirements of calculation precision and can fully eliminate the over-load.
Emergency load shedding is an essential technical measure against the power flow violation-limit of transmission section caused by the blocking faults of UHVDC( Ultra High Voltage Direct Current). A multi-objective optimization method for emergency load shedding based on comprehensive contribution index is proposed,which considers the different contribution degrees of interruptible load on the objective functions of the total load shedding capacity and the total quantity of load shedding customers and forms well-distributed Pareto solutions by parallel calculation. The power flow after load shedding is calculated considering the secondary frequency regulation of generators and the over-load of transmission section is corrected by the AC power flow check,obtaining the load shedding scheme,which meets the requirements of calculation precision and can fully eliminate the over-load.
引文
[1]刘振亚,张启平.国家电网发展模式研究[J].中国电机工程学报,2013,33(7):1-10.LIU Zhenya,ZHANG Qiping.Study on the development mode of national power grid of China[J].Proceedings of the CSEE,2013,33(7):1-10.
[2]韩冰,孙世明,赵家庆,等.适应特高压直流闭锁故障处置的批量负荷快速控制关键技术[J].电力系统自动化,2016,40(17):177-183.HAN Bing,SUN Shiming,ZHAO Jiaqing,et al.Key technologies forhigh speed batch control of load dispatching adapt to block fault disposal of UHVDC transmission system[J].Automation of Electric Power Systems,2016,40(17):177-183.
[3]高强,张小聪,施正钗,等.±800 k V宾金直流双极闭锁故障对浙江电网的影响[J].电网与清洁能源,2014,30(11):47-51.GAO Qiang,ZHANG Xiaocong,SHI Zhengchai,et al.Impact of±800 k V Yibin-Jinhua DC bipolar block fault on Zhejiang Power Grid[J].Power System and Clean Energy,2014,30(11):47-51.
[4]陈庆,闪鑫,罗建裕,等.特高压直流故障下源网荷协调控制策略及应用[J].电力系统自动化,2017,41(5):147-152.CHEN Qing,SHAN Xin,LUO Jianyu,et al.Source-grid-load coordinated control strategy and its application under UHVDC faults[J].Automation of Electric Power Systems,2017,41(5):147-152.
[5]尹积军.支持特高压互联电网安全运行的供需友好互动技术研究[J].中国电机工程学报,2016,36(21):5715-5723.YIN Jijun.Research on load friendly interactive technology for safe operation of UHV interconnected power grid[J].Proceedings of the CSEE,2016,36(21):5715-5723.
[6]徐泰山,李峰,张建新,等.各类紧急减负荷控制的在线风险评估和协调决策方案[J].电力系统自动化,2015,39(20):91-97.XU Taishan,LI Feng,ZHANG Jianxin,et al.Online risk assessment and coordinated decision scheme for emergency load shedding control[J].Automation of Electric Power Systems,2015,39(20):91-97.
[7]乔辰,张国立.几何加权法求解多目标规划问题[J].华北电力大学学报,2011,38(6):107-110.QIAO Chen,ZHANG Guoli.Geometric weighting method for solving multi-objective programming problems[J].Journal of North China Electric Power University,2011,38(6):107-110.
[8]陈庆,周海强,朱斌,等.协调经济性及事故评级的紧急减负荷控制优化方法[J].电网技术,2016,40(4):1044-1050.CHEN Qing,ZHOU Haiqiang,ZHU Bin,et al.Coordinated emergency load shedding control optimization algorithm for economic cost and accident assessment[J].Power System Technology,2016,40(4):1044-1050.
[9]侯建朝,胡群丰,谭忠富.计及需求响应的风电-电动汽车协同调度多目标优化模型[J].电力自动化设备,2016,36(7):22-27.HOU Jianchao,HU Qunfeng,TAN Zhongfu.Multi-objective optimization model of collaborative WP-EV dispatch considering demand response[J].Electric Power Automation Equipment,2016,36(7):22-27.
[10]王韶,刘沛铮,董光德,等.基于复杂网络理论计及校正控制的电力系统连锁故障模型[J].电力自动化设备,2016,36(9):162-168.WANG Shao,LIU Peizheng,DONG Guangde,et al.Power system cascading failure model based on complex network theory with consideration of corrective control[J].Electric Power Automation Equipment,2016,36(9):162-168.
[11]姚峰,张保会,周德才,等.输电断面有功安全性保护及其快速算法[J].中国电机工程学报,2006,26(13):31-36.YAO Feng,ZHANG Baohui,ZHOU Decai,et al.Active power security protection of transmission section and its fast algorithm[J].Proceedings of the CSEE,2006,26(13):31-36.
[12]周晓宁,徐伟,胥传普,等.计及负荷转供措施的电网设备过载辅助决策[J].电力系统保护与控制,2013,41(23):61-66.ZHOU Xiaoning,XU Wei,XU Chuanpu,et al.The assistant decision-making for power grid equipment overloading considering load transfer actions[J].Power System Protection and Control,2013,41(23):61-66.
[13]马明,刘强,沈凤杰,等.输电设备过载与断面功率越限在线控制决策[J].电网与清洁能源,2015,31(6):26-32.MA Ming,LIU Qiang,SHEN Fengjie,et al.On-line auxiliary decision-making for overload control of power transmission equipment and sections[J].Power System and Clean Energy,2015,31(6):26-32.
[14]鲍颜红,徐泰山,许立雄,等.暂态稳定预防控制及极限功率集群计算[J].电力系统自动化,2010,34(1):32-35.BAO Yanhong,XU Taishan,XU Lixiong,et al.Cluster computing mode for transient stability-constrained preventive control implementation and total transfer capability calculation[J].Automation of Electric Power Systems,2010,34(1):32-35.
[2]韩冰,孙世明,赵家庆,等.适应特高压直流闭锁故障处置的批量负荷快速控制关键技术[J].电力系统自动化,2016,40(17):177-183.HAN Bing,SUN Shiming,ZHAO Jiaqing,et al.Key technologies forhigh speed batch control of load dispatching adapt to block fault disposal of UHVDC transmission system[J].Automation of Electric Power Systems,2016,40(17):177-183.
[3]高强,张小聪,施正钗,等.±800 k V宾金直流双极闭锁故障对浙江电网的影响[J].电网与清洁能源,2014,30(11):47-51.GAO Qiang,ZHANG Xiaocong,SHI Zhengchai,et al.Impact of±800 k V Yibin-Jinhua DC bipolar block fault on Zhejiang Power Grid[J].Power System and Clean Energy,2014,30(11):47-51.
[4]陈庆,闪鑫,罗建裕,等.特高压直流故障下源网荷协调控制策略及应用[J].电力系统自动化,2017,41(5):147-152.CHEN Qing,SHAN Xin,LUO Jianyu,et al.Source-grid-load coordinated control strategy and its application under UHVDC faults[J].Automation of Electric Power Systems,2017,41(5):147-152.
[5]尹积军.支持特高压互联电网安全运行的供需友好互动技术研究[J].中国电机工程学报,2016,36(21):5715-5723.YIN Jijun.Research on load friendly interactive technology for safe operation of UHV interconnected power grid[J].Proceedings of the CSEE,2016,36(21):5715-5723.
[6]徐泰山,李峰,张建新,等.各类紧急减负荷控制的在线风险评估和协调决策方案[J].电力系统自动化,2015,39(20):91-97.XU Taishan,LI Feng,ZHANG Jianxin,et al.Online risk assessment and coordinated decision scheme for emergency load shedding control[J].Automation of Electric Power Systems,2015,39(20):91-97.
[7]乔辰,张国立.几何加权法求解多目标规划问题[J].华北电力大学学报,2011,38(6):107-110.QIAO Chen,ZHANG Guoli.Geometric weighting method for solving multi-objective programming problems[J].Journal of North China Electric Power University,2011,38(6):107-110.
[8]陈庆,周海强,朱斌,等.协调经济性及事故评级的紧急减负荷控制优化方法[J].电网技术,2016,40(4):1044-1050.CHEN Qing,ZHOU Haiqiang,ZHU Bin,et al.Coordinated emergency load shedding control optimization algorithm for economic cost and accident assessment[J].Power System Technology,2016,40(4):1044-1050.
[9]侯建朝,胡群丰,谭忠富.计及需求响应的风电-电动汽车协同调度多目标优化模型[J].电力自动化设备,2016,36(7):22-27.HOU Jianchao,HU Qunfeng,TAN Zhongfu.Multi-objective optimization model of collaborative WP-EV dispatch considering demand response[J].Electric Power Automation Equipment,2016,36(7):22-27.
[10]王韶,刘沛铮,董光德,等.基于复杂网络理论计及校正控制的电力系统连锁故障模型[J].电力自动化设备,2016,36(9):162-168.WANG Shao,LIU Peizheng,DONG Guangde,et al.Power system cascading failure model based on complex network theory with consideration of corrective control[J].Electric Power Automation Equipment,2016,36(9):162-168.
[11]姚峰,张保会,周德才,等.输电断面有功安全性保护及其快速算法[J].中国电机工程学报,2006,26(13):31-36.YAO Feng,ZHANG Baohui,ZHOU Decai,et al.Active power security protection of transmission section and its fast algorithm[J].Proceedings of the CSEE,2006,26(13):31-36.
[12]周晓宁,徐伟,胥传普,等.计及负荷转供措施的电网设备过载辅助决策[J].电力系统保护与控制,2013,41(23):61-66.ZHOU Xiaoning,XU Wei,XU Chuanpu,et al.The assistant decision-making for power grid equipment overloading considering load transfer actions[J].Power System Protection and Control,2013,41(23):61-66.
[13]马明,刘强,沈凤杰,等.输电设备过载与断面功率越限在线控制决策[J].电网与清洁能源,2015,31(6):26-32.MA Ming,LIU Qiang,SHEN Fengjie,et al.On-line auxiliary decision-making for overload control of power transmission equipment and sections[J].Power System and Clean Energy,2015,31(6):26-32.
[14]鲍颜红,徐泰山,许立雄,等.暂态稳定预防控制及极限功率集群计算[J].电力系统自动化,2010,34(1):32-35.BAO Yanhong,XU Taishan,XU Lixiong,et al.Cluster computing mode for transient stability-constrained preventive control implementation and total transfer capability calculation[J].Automation of Electric Power Systems,2010,34(1):32-35.