发电机功率变送器暂态响应特性试验分析
|
摘要
为了研究机组控制用功率变送器暂态响应特性,采用RTDS搭建500 kV双机双线仿真系统模型来模拟不同类型故障以及对实际故障录波进行回放的方式,对4种类型功率变送器的暂态响应特性进行了试验分析,结果表明:数字式功率变送器暂态响应特性优于模拟式功率变送器,快速响应的数字式功率变送器在故障期间能有效跟踪实际值,模拟式功率变送器存在幅值误差大、功率反向等问题。
In order to study transient response characteristic of the power transmitter for generator control,this paper makes experimental analysis on transient response characteristics of four types of power transmitters by establishing a500 kV double generator and double line simulation system model on RTDS to simulate different faults and replaying actual fault recording.The results indicate that transient response characteristic of the digital power transmitter is superior to that of the analog power transmitter,and the former having fast response characteristic can effective trace actual value during fault period while the latter has some problems such as large amplitude error,power reverse,and so on.
In order to study transient response characteristic of the power transmitter for generator control,this paper makes experimental analysis on transient response characteristics of four types of power transmitters by establishing a500 kV double generator and double line simulation system model on RTDS to simulate different faults and replaying actual fault recording.The results indicate that transient response characteristic of the digital power transmitter is superior to that of the analog power transmitter,and the former having fast response characteristic can effective trace actual value during fault period while the latter has some problems such as large amplitude error,power reverse,and so on.
引文
[1]张宝,杨涛,项谨,等.电网瞬时故障时汽轮机汽门快控误动作原因分析[J].中国电力,2014,47(5):25–28.ZHANG Bao,YANG Tao,XIANG Jin,et al.Cause Analysis on Steam Turbine Valve Control Misoperation During Grid Instantaneous Faults[J].Electric Power,2014,47(5):25-28.
[2]朱松强.功率负荷不平衡模块(PLU)误动原因分析[J].浙江电力,2005(4):43–44.ZHU Songqiang.Analysis of PLU Faults in Beilun Thermal Power Plant[J].Zhejiang Electric Power,2005(4):43-44.
[3]郑先进.PLU保护误动原因分析及处理[J].广西电力,2016,39(2):73–77.ZHENG Xianjin.Reason Analysis and Treatment of PLU Protection Maloperation[J].Guangxi Electric Power,2016,39(2):73-77.
[4]陈刚,徐国明,曹达,等.基于涌流影响功率变送器引起的机组振荡研究[J].电气技术,2015(10):68–71.CHEN Gang,XU Guoming,CAO Da,et al.Study on the Unit Oscillation by the Changes of Power Transducer Caused by Inrush Current[J].Electrical Engineering,2015(10):68-71.
[5]谢勇,王雨.线路单相接地故障引发机组振荡原因简析[J].电气技术,2013(3):82–85.XIE Yong,WANG Yu.Analysis on the Unit Oscillation of Single-phase to Earth Fault[J].Electrical Engineering,2013(3):82-85.
[6]徐学琴,郭玉恒,王秀梅,等.调速器功率变送器测量偏小导致机组有功功率波动分析[J].中国农村水利水电,2014(10):176–177.XU Xueqin,GUO Yuheng,WANG Xiumei,et al.Analysis of Active Power Fluctuation Caused by Small Measurement of Governor Power Transmitter[J].China Rural Water and Hydropower,2014(10):176-177.
[7]田丰,陈兴华,罗向东.完善机组涉网控制提高电网可靠性[J].电力系统及其自动化学报,2010,22(1):116–119.TIAN Feng,CHEN Xinghua,LUO Xiangdong.Perfect of Unit Control Functions with Grid to Improve Reliability of Grid[J].Proceedings of the CSU-EPSA,2010,22(1):116-119.
[8]王会.西门子1 000 MW汽轮机DEH控制逻辑优化[J].中国电力,2014,47(9):6–10.WANG Hui.Optimization on Control Logics of Siemens DEH System for 1 000 MW Steam Turbines[J].Electric Power,2014,47(9):6-10.
[9]徐国明,徐燕明,曹达,等.基于STM32与AD7606的高精度和快速响应数字多功能表的设计[J].电测与仪表,2015,52(12):102–106.XU Guoming,XU Yanming,CAO Da,et al.Design for High-precision and Quick-response Digital Multifunction Meter Based on STM32 and AD7606[J].Electrical Measurement&Instrumentation,2015,52(12):102-106.
[10]中国国家标准化管理委员会.交流电量转换为模拟量或数字信号的电测量变送器:GB/T13850—1998[S].北京:中国标准出版社,1998.
[2]朱松强.功率负荷不平衡模块(PLU)误动原因分析[J].浙江电力,2005(4):43–44.ZHU Songqiang.Analysis of PLU Faults in Beilun Thermal Power Plant[J].Zhejiang Electric Power,2005(4):43-44.
[3]郑先进.PLU保护误动原因分析及处理[J].广西电力,2016,39(2):73–77.ZHENG Xianjin.Reason Analysis and Treatment of PLU Protection Maloperation[J].Guangxi Electric Power,2016,39(2):73-77.
[4]陈刚,徐国明,曹达,等.基于涌流影响功率变送器引起的机组振荡研究[J].电气技术,2015(10):68–71.CHEN Gang,XU Guoming,CAO Da,et al.Study on the Unit Oscillation by the Changes of Power Transducer Caused by Inrush Current[J].Electrical Engineering,2015(10):68-71.
[5]谢勇,王雨.线路单相接地故障引发机组振荡原因简析[J].电气技术,2013(3):82–85.XIE Yong,WANG Yu.Analysis on the Unit Oscillation of Single-phase to Earth Fault[J].Electrical Engineering,2013(3):82-85.
[6]徐学琴,郭玉恒,王秀梅,等.调速器功率变送器测量偏小导致机组有功功率波动分析[J].中国农村水利水电,2014(10):176–177.XU Xueqin,GUO Yuheng,WANG Xiumei,et al.Analysis of Active Power Fluctuation Caused by Small Measurement of Governor Power Transmitter[J].China Rural Water and Hydropower,2014(10):176-177.
[7]田丰,陈兴华,罗向东.完善机组涉网控制提高电网可靠性[J].电力系统及其自动化学报,2010,22(1):116–119.TIAN Feng,CHEN Xinghua,LUO Xiangdong.Perfect of Unit Control Functions with Grid to Improve Reliability of Grid[J].Proceedings of the CSU-EPSA,2010,22(1):116-119.
[8]王会.西门子1 000 MW汽轮机DEH控制逻辑优化[J].中国电力,2014,47(9):6–10.WANG Hui.Optimization on Control Logics of Siemens DEH System for 1 000 MW Steam Turbines[J].Electric Power,2014,47(9):6-10.
[9]徐国明,徐燕明,曹达,等.基于STM32与AD7606的高精度和快速响应数字多功能表的设计[J].电测与仪表,2015,52(12):102–106.XU Guoming,XU Yanming,CAO Da,et al.Design for High-precision and Quick-response Digital Multifunction Meter Based on STM32 and AD7606[J].Electrical Measurement&Instrumentation,2015,52(12):102-106.
[10]中国国家标准化管理委员会.交流电量转换为模拟量或数字信号的电测量变送器:GB/T13850—1998[S].北京:中国标准出版社,1998.