计及设备老化与计划检修的智能变电站保护系统可靠性评估方法
|
摘要
为了实现对智能变电站保护系统进行可靠性评估的目的,建立精确的保护系统可靠性评估模型至关重要。采用威布尔分布来表征设备老化时设备故障率随时间的变化情况。结合保护系统的计划检修行为,用改善因子来表征计划检修对设备故障率的降低作用,建立了计及设备老化与不完全计划检修的智能变电站保护系统可靠性评估模型。以线路保护系统为例,通过绘制线路保护系统可靠性时变曲线,计算线路保护系统的平均无故障工作时间和计划检修成本等指标对线路保护系统进行可靠性评估。结果表明所提方法能较为准确地反映设备老化与实际检修效果。
In order to realize the reliability evaluation of the intelligent substation protection system, it is very important to establish an accurate reliability evaluation model of the protection system. In this paper, Weibull distribution is used to characterize the change of equipment failure rate over time when the equipment is aging. Combined with the planned maintenance behavior of the protection system, the improvement factor is used to characterize the reduction effect of planned maintenance on the equipment failure rate, establishing the reliability evaluation model of intelligent substation protection system with incompletely planned maintenance and the aging of the equipment. Taking the line protection system as an example, the reliability of the line protection system is evaluated by plotting the time-varying curve of the line protection system reliability and calculating the mean time between failure and planned maintenance cost of the line protection system. The results show that the proposed method can more accurately reflect the aging of equipment and the actual maintenance effect.
In order to realize the reliability evaluation of the intelligent substation protection system, it is very important to establish an accurate reliability evaluation model of the protection system. In this paper, Weibull distribution is used to characterize the change of equipment failure rate over time when the equipment is aging. Combined with the planned maintenance behavior of the protection system, the improvement factor is used to characterize the reduction effect of planned maintenance on the equipment failure rate, establishing the reliability evaluation model of intelligent substation protection system with incompletely planned maintenance and the aging of the equipment. Taking the line protection system as an example, the reliability of the line protection system is evaluated by plotting the time-varying curve of the line protection system reliability and calculating the mean time between failure and planned maintenance cost of the line protection system. The results show that the proposed method can more accurately reflect the aging of equipment and the actual maintenance effect.
引文
[1]高翔,张沛超.数字化变电站的主要特征和关键技术[J].电网技术,2006,30(23):67-71.GAO Xiang,ZHANG Peichao.Main features and key technologies of digital substation[J].Power System Technology,2006,30(23):67-71.
[2]李孟超,王允平,李献伟,等.智能变电站及技术特点分析[J].电力系统保护与控制,2010,38(18):59-62,79.LI Mengchao,WANG Yunping,LI Xianwei,et al.Smart substation and technical characteristic analysis[J].Power System Protection and Control,2010,38(18):59-62,79.
[3]曹楠,李刚,王冬青.智能变电站关键技术及其构建方式的探讨[J].电力系统保护与控制,2011,39(5):63-68.CAO Nan,LI Gang,WANG Dongqing.Key technologies and construction methods of smart substation[J].Power System Protection and Control,2011,39(5):63-68.
[4]刘世丹,袁亮荣,曾耿晖,等.一种基于IEC 61850统一建模的多智能变电站数据共享方案[J].广东电力,2017,30(8):109-112.LIU Shidan,YUAN Liangrong,ZENG Genghui,et al.Unified modeling data sharing plan for multi-intelligent substations based on IEC61850[J].Guangdong Electric Power,2017,30(8):109-112.
[5]陈锦山,唐志军,何燕玲,等.智能变电站二次系统信息安全测试方法[J].广东电力,2017,30(9):75-80.CHEN Jinshan,TANG Zhijun,HE Yanling,et al.Testing method for information security of secondary system of intelligent substation[J].Guangdong Electric Power,2017,30(9):75-80.
[6]胡斌,郭亚飞,杨彬,等.智能变电站技术的现状与发展趋势研究[J].智慧电力,2018,46(3):87-90.HU Bin,GUO Yafei,YANG Bin,et al.Research on status and development trend of smart substation technology[J].Smart Power,2018,46(3):87-90.
[7]王喜,赵宵凯,熊斌宇.一种基于数据挖掘技术的智能变电站故障诊断方法[J].智慧电力,2018,46(4):39-43.WANG Xi,ZHAO Xiaokai,XIONG Binyu,et al.Intelligent substation fault diagnosis method based on date mining technology[J].Smart Power,2018,46(4):39-43.
[8]胡学浩.智能电网--未来电网的发展态势[J].电网技术,2009,33(14):1-5.HU Xuehao.Smart grid-a development trend of future power grid[J].Power System Technology,2009,33(14):1-5.
[9]白翎.火电厂重要辅助设备可靠性状态识别研究[J].热力发电,2017,46(11):25-31.BAI Ling.Reliability state identification for key auxiliary equipments in thermal power units[J].Thermal Power Generation,2017,46(11):25-31.
[10]鲍旭东,颜铁光.再热蒸汽温度控制对核电机组运行可靠性的影响[J/OL].热力发电:1-5[2019-04-18].https://doi.org/10.19666/j.rlfd.201810203.BAO Xudong,YAN Tieguang.Effect of reheat steam temperature control on operation reliability of nuclear power unit[J].Thermal Power Generation:1-5[2019-04-18].https://doi.org/10.19666/j.rlfd.201810203.
[11]刘海峰,肖繁,赵永生,等.智能变电站集中式站域保护系统的可靠性分析[J].电力自动化设备,2016,36(4):157-164.LIU Haifeng,XIAO Fan,ZHAO Yongsheng,et al.Reliability evaluation for centralized protection system of smart substation[J].Electric Power Automation Equipment,2016,36(4):157-164.
[12]薛安成,罗麟,景琦,等.基于Markov模型的高压输电线继电保护装置风险评估[J].电网技术,2014,38(7):1995-2000.XUE Ancheng,LUO Lin,JING Qi,et al.Research on Markov model based risk assessment of protective relaying for high voltage transmission line[J].Power System Technology,2014,38(7):1995-2000.
[13]王力军,周凯,吴迪,等.基于风险传递网络的智能变电站二次系统风险评估[J].电力系统保护与控制,2018,46(6):97-105.WANG Lijun,ZHOU Kai,WU Di,et al.Risk assessment for smart substation secondary system using risk transfer network model[J].Power System Protection and Control,2018,46(6):97-105.
[14]XU X,MITRA J,WANG T,et al.An evaluation strategy for microgrid reliability considering the effects of protection system[J].IEEE Transactions on Power Delivery,2015,31(5):434-450.
[15]DAI Z,WANG Z,JIAO Y.Bayes Monte-Carlo assessment method of protection systems reliability based on small failure sample data[J].IEEE Transactions on Power Delivery,2014,29(4):1841-1848.
[16]PAUL D,CHAVDARIAN P B R.Undercurrent protection power system:a novel ground-fault protection relay scheme[J].IEEE Industry Applications Magazine,2015,21(1):23-32.
[17]CHAIDEE E,TIPPACHON W.Failure statistics and condition evaluation for power transformer maintenance[C]//Asia-Pacific Power and Energy Engineering Conference,IEEE,2011:1-4.
[18]RETTERATH B,VENKATA S S,CHOWDHURY A A.Impact of time-varying failure rates on distribution reliability[J].International Journal of Electrical Power&Energy Systems,2005,27(9):682-688.
[19]张翔,宋子彤,杨致慧,等.一种基于负载率和设备检测信息的油浸式变压器故障率模型[J].电网技术,2013,37(4):1159-1165.ZHANG Xiang,SONG Zitong,YANG Zhihui,et al.Afailure model for oil-immersed transformer based on load factor and equipment inspection information[J].Power System Technology,2013,37(4):1159-1165.
[20]BERTLING L,ALLAN R,ERIKSSON R.A reliabilitycentered asset maintenance method for assessing the impact of maintenance in power distribution systems[J].IEEE Transactions on Power Systems,2005,20(1):75-82.
[21]CASTRO I T.Model of imperfect preventive maintenance with dependent failure modes[J].European Journal of Operational Research,2009,196(1):217-224.
[22]邓奥攀,胡志坚,胡美玉.同时计及设备老化与不完全维修的电力系统可靠性评估[J].电力系统保护与控制,2017,45(3):69-74.DENG Aopan,HU Zhijian,HU Meiyu.Power system reliability evaluation considering deterioration and imperfect maintenance of equipment[J].Power System Protection and Control,2017,45(3):69-74.
[23]肖繁,王紫薇,张哲,等.基于状态监测的继电保护系统检修策略研究[J].电力系统保护与控制,2018,46(6):74-83.XIAO Fan,WANG Ziwei,ZHANG Zhe,et al.Study on maintenance strategy of relay protection system based on condition monitoring[J].Power System Protection and Control,2018,46(6):74-83.
[24]赵渊,张煦,王洁,等.多级检修模式下电网计划检修周期协调优化[J].电力自动化设备,2015,35(6):71-81.ZHAO Yuan,ZHANG Xu,WANG Jie,et al.Coordination and optimization of power-grid preventive maintenance cycle in multi-level maintenance mode[J].Electric Power Automation Equipment,2015,35(6):71-81.
[25]何旭,姜宪国,张沛超,等.考虑检修策略的智能变电站保护系统可用性分析[J].电网技术,2015,39(4):1121-1128.HE Xu,JIANG Xianguo,ZHANG Peichao,et al.Availability analysis of smart substation protection system considering maintenance strategies[J].Power System Technology,2015,39(4):1121-1128.
[26]王同文,谢民,孙月琴,等.智能变电站继电保护系统可靠性分析[J].电力系统保护与控制,2015,43(6):58-66.WANG Tongwen,XIE Min,SUN Yueqin,et al.Analysis of reliability for relay protection systems in smart substation[J].Power System Protection and Control,2015,43(6):58-66.
[27]戴志辉.继电保护可靠性及其风险评估研究[D].保定:华北电力大学,2012.DAI Zhihui.Research on reliability and risk assessment of protection systems[D].Baoding:North China Electric Power University,2012.
[2]李孟超,王允平,李献伟,等.智能变电站及技术特点分析[J].电力系统保护与控制,2010,38(18):59-62,79.LI Mengchao,WANG Yunping,LI Xianwei,et al.Smart substation and technical characteristic analysis[J].Power System Protection and Control,2010,38(18):59-62,79.
[3]曹楠,李刚,王冬青.智能变电站关键技术及其构建方式的探讨[J].电力系统保护与控制,2011,39(5):63-68.CAO Nan,LI Gang,WANG Dongqing.Key technologies and construction methods of smart substation[J].Power System Protection and Control,2011,39(5):63-68.
[4]刘世丹,袁亮荣,曾耿晖,等.一种基于IEC 61850统一建模的多智能变电站数据共享方案[J].广东电力,2017,30(8):109-112.LIU Shidan,YUAN Liangrong,ZENG Genghui,et al.Unified modeling data sharing plan for multi-intelligent substations based on IEC61850[J].Guangdong Electric Power,2017,30(8):109-112.
[5]陈锦山,唐志军,何燕玲,等.智能变电站二次系统信息安全测试方法[J].广东电力,2017,30(9):75-80.CHEN Jinshan,TANG Zhijun,HE Yanling,et al.Testing method for information security of secondary system of intelligent substation[J].Guangdong Electric Power,2017,30(9):75-80.
[6]胡斌,郭亚飞,杨彬,等.智能变电站技术的现状与发展趋势研究[J].智慧电力,2018,46(3):87-90.HU Bin,GUO Yafei,YANG Bin,et al.Research on status and development trend of smart substation technology[J].Smart Power,2018,46(3):87-90.
[7]王喜,赵宵凯,熊斌宇.一种基于数据挖掘技术的智能变电站故障诊断方法[J].智慧电力,2018,46(4):39-43.WANG Xi,ZHAO Xiaokai,XIONG Binyu,et al.Intelligent substation fault diagnosis method based on date mining technology[J].Smart Power,2018,46(4):39-43.
[8]胡学浩.智能电网--未来电网的发展态势[J].电网技术,2009,33(14):1-5.HU Xuehao.Smart grid-a development trend of future power grid[J].Power System Technology,2009,33(14):1-5.
[9]白翎.火电厂重要辅助设备可靠性状态识别研究[J].热力发电,2017,46(11):25-31.BAI Ling.Reliability state identification for key auxiliary equipments in thermal power units[J].Thermal Power Generation,2017,46(11):25-31.
[10]鲍旭东,颜铁光.再热蒸汽温度控制对核电机组运行可靠性的影响[J/OL].热力发电:1-5[2019-04-18].https://doi.org/10.19666/j.rlfd.201810203.BAO Xudong,YAN Tieguang.Effect of reheat steam temperature control on operation reliability of nuclear power unit[J].Thermal Power Generation:1-5[2019-04-18].https://doi.org/10.19666/j.rlfd.201810203.
[11]刘海峰,肖繁,赵永生,等.智能变电站集中式站域保护系统的可靠性分析[J].电力自动化设备,2016,36(4):157-164.LIU Haifeng,XIAO Fan,ZHAO Yongsheng,et al.Reliability evaluation for centralized protection system of smart substation[J].Electric Power Automation Equipment,2016,36(4):157-164.
[12]薛安成,罗麟,景琦,等.基于Markov模型的高压输电线继电保护装置风险评估[J].电网技术,2014,38(7):1995-2000.XUE Ancheng,LUO Lin,JING Qi,et al.Research on Markov model based risk assessment of protective relaying for high voltage transmission line[J].Power System Technology,2014,38(7):1995-2000.
[13]王力军,周凯,吴迪,等.基于风险传递网络的智能变电站二次系统风险评估[J].电力系统保护与控制,2018,46(6):97-105.WANG Lijun,ZHOU Kai,WU Di,et al.Risk assessment for smart substation secondary system using risk transfer network model[J].Power System Protection and Control,2018,46(6):97-105.
[14]XU X,MITRA J,WANG T,et al.An evaluation strategy for microgrid reliability considering the effects of protection system[J].IEEE Transactions on Power Delivery,2015,31(5):434-450.
[15]DAI Z,WANG Z,JIAO Y.Bayes Monte-Carlo assessment method of protection systems reliability based on small failure sample data[J].IEEE Transactions on Power Delivery,2014,29(4):1841-1848.
[16]PAUL D,CHAVDARIAN P B R.Undercurrent protection power system:a novel ground-fault protection relay scheme[J].IEEE Industry Applications Magazine,2015,21(1):23-32.
[17]CHAIDEE E,TIPPACHON W.Failure statistics and condition evaluation for power transformer maintenance[C]//Asia-Pacific Power and Energy Engineering Conference,IEEE,2011:1-4.
[18]RETTERATH B,VENKATA S S,CHOWDHURY A A.Impact of time-varying failure rates on distribution reliability[J].International Journal of Electrical Power&Energy Systems,2005,27(9):682-688.
[19]张翔,宋子彤,杨致慧,等.一种基于负载率和设备检测信息的油浸式变压器故障率模型[J].电网技术,2013,37(4):1159-1165.ZHANG Xiang,SONG Zitong,YANG Zhihui,et al.Afailure model for oil-immersed transformer based on load factor and equipment inspection information[J].Power System Technology,2013,37(4):1159-1165.
[20]BERTLING L,ALLAN R,ERIKSSON R.A reliabilitycentered asset maintenance method for assessing the impact of maintenance in power distribution systems[J].IEEE Transactions on Power Systems,2005,20(1):75-82.
[21]CASTRO I T.Model of imperfect preventive maintenance with dependent failure modes[J].European Journal of Operational Research,2009,196(1):217-224.
[22]邓奥攀,胡志坚,胡美玉.同时计及设备老化与不完全维修的电力系统可靠性评估[J].电力系统保护与控制,2017,45(3):69-74.DENG Aopan,HU Zhijian,HU Meiyu.Power system reliability evaluation considering deterioration and imperfect maintenance of equipment[J].Power System Protection and Control,2017,45(3):69-74.
[23]肖繁,王紫薇,张哲,等.基于状态监测的继电保护系统检修策略研究[J].电力系统保护与控制,2018,46(6):74-83.XIAO Fan,WANG Ziwei,ZHANG Zhe,et al.Study on maintenance strategy of relay protection system based on condition monitoring[J].Power System Protection and Control,2018,46(6):74-83.
[24]赵渊,张煦,王洁,等.多级检修模式下电网计划检修周期协调优化[J].电力自动化设备,2015,35(6):71-81.ZHAO Yuan,ZHANG Xu,WANG Jie,et al.Coordination and optimization of power-grid preventive maintenance cycle in multi-level maintenance mode[J].Electric Power Automation Equipment,2015,35(6):71-81.
[25]何旭,姜宪国,张沛超,等.考虑检修策略的智能变电站保护系统可用性分析[J].电网技术,2015,39(4):1121-1128.HE Xu,JIANG Xianguo,ZHANG Peichao,et al.Availability analysis of smart substation protection system considering maintenance strategies[J].Power System Technology,2015,39(4):1121-1128.
[26]王同文,谢民,孙月琴,等.智能变电站继电保护系统可靠性分析[J].电力系统保护与控制,2015,43(6):58-66.WANG Tongwen,XIE Min,SUN Yueqin,et al.Analysis of reliability for relay protection systems in smart substation[J].Power System Protection and Control,2015,43(6):58-66.
[27]戴志辉.继电保护可靠性及其风险评估研究[D].保定:华北电力大学,2012.DAI Zhihui.Research on reliability and risk assessment of protection systems[D].Baoding:North China Electric Power University,2012.