ABB UNITROL 6800励磁系统实测建模研究
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摘要
针对ABB UNITROL 6800励磁系统机电暂态稳定仿真建模问题,提出一种计及晶闸管移相触发功率放大环节影响的发电机励磁系统详细数学模型,推导了UNITROL 6800励磁系统开环增益的理论计算公式,并提出基于小阶跃法的励磁系统开环稳态增益实测验证方法。通过现场实际机组励磁试验验证表明,系统移相触发功率放大环节增益与气隙磁场电流设置有关并与晶闸管阳极电压有效值成正比。
An exact mathematic model of generator excitation system is proposed for ABB UNITROL 6800 excitation system transient stability simulation,which considers the gain error caused by thyristor phase-shifting.In addition,a field test method based on small signal step is proposed to measure the open-loop static gains of excitation systems.A formula is also given to calculate this gain.An actual generator excitation field test shows that the gain of the UNITROL 6800 excitation system caused by phase-shifting is related to the set of air gap magnetic field current,and is proportional to the voltage magnitude of the thyristor anode.
An exact mathematic model of generator excitation system is proposed for ABB UNITROL 6800 excitation system transient stability simulation,which considers the gain error caused by thyristor phase-shifting.In addition,a field test method based on small signal step is proposed to measure the open-loop static gains of excitation systems.A formula is also given to calculate this gain.An actual generator excitation field test shows that the gain of the UNITROL 6800 excitation system caused by phase-shifting is related to the set of air gap magnetic field current,and is proportional to the voltage magnitude of the thyristor anode.
引文
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[9]张阳,董久晨,王西田,等.自并励静止励磁系统精细建模仿真研究[J].大电机技术,2016(4):55-60.ZHANG Yang,DONG Jiuchen,WANG Xitian,et al.Study on the exact simulation model of potential source static excitation system[J].Large Electric Machine and Hydraulic Turbine,2016(4):55-60.
[10]莫瑶,张璇.基于BPA的励磁系统建模与仿真[J].水电站机电技术,2018,14(1):15-18.MO Yao,ZHANG Xuan.BPA-based modeling and simulation of excitation system[J].Mechanical&Electrical Technique of Hydropower Station,2018,14(1):15-18.
[11]Standard simplified computer representation for power system stability studies UNITROL?6000.ABB[R].
[12]李基成.现代同步发电机励磁系统设计及应用[M].3版.北京:中国电力出版社,2017.
[13]王兆安.电力电子技术[M].北京:机械工业出版社,2010.
[14]同步发电机励磁系统建模导则:DL/T 1167-2012[S].
[15]荀吉辉,熊尚峰.稳定计算用发电机励磁系统模型参数测试及校核分析[J].电力系统保护与控制,2009,37(17):20-25,31.XUN Jihui,XIONG Shangfeng.Test and analysis of excitation system model for power system stability studies[J].Power System Protection and Control,2009,37(17):20-25,31.
[16]同步电机励磁系统电力系统研究用模型:GB/T 7409.2-2008[S].
[17]IEEE recommended practice for excitation system models for power system stability studies:IEEE Std 421.5-2016[S].2016.
[18]印永华,卜广全.PSD-BPA暂态稳定程序用户手册[Z].北京:中国电力科学研究院,2012.
[19]大型汽轮发电机励磁系统技术条件:DL/T 843-2010[S].2010.
[20]同步电机励磁系统定义:GB/T 7409.1-2008[S].2008.
[2]丁建顺,王青,马世英,等.发电机叠加型低励限制对电力系统动态稳定影响机制[J].电力系统自动化,2016,40(8):78-84,91.DING Jianshun,WANG Qing,MA Shiying,et al.Influence mechanism of superimposed type of underexcitation limiter in generators on power system dynamic stability[J].Automation of Electric Power Systems,2016,40(8):78-84,91.
[3]苏为民,吴涛,姚谦,等.数字励磁调节器AVR完整功能建模与仿真[J].电网技术,2011,35(12):100-106.SU Weimin,WU Tao,YAO Qian,et al.Modeling and simulation on performance of digital automatic voltage regulator[J].Power System Technology,2011,35(12):100-106.
[4]苏为民,吴涛,白格平.励磁调节器性能的入网检测研究[J].中国电力,2009,42(12):20-25.SU Weimin,WU Tao,BAI Geping.Problems identified by performance test of automatic voltage regulator for power grid access[J].Electric Power,2009,42(12):20-25.
[5]刘丹梅,赵树泉.AP1000机组UNITROL 6800励磁系统浅析[J].核科学与工程,2014,34(2):263-270.LIU Danmei,ZHAO Shuquan.Study of generator excitation system-UNITROL 6800 in Chinese AP1000 Unit[J].Nuclear Science and Engineering,2014,34(2):263-270.
[6]竺士章.发电机励磁系统试验[M].北京:中国电力出版社,2005.
[7]张俊峰.UNITROL 5000型励磁调节器参数辨识及建模仿真[J].广东电力,2011,24(1):20-23.ZHANG Junfeng.Parameter identification and modeling simulation of UNITROL 5000 excitation regulator[J].Guangdong Electric Power,2011,24(1):20-23.
[8]周鲲鹏,丁凯,陈乔,等.荆门热电厂6号机组励磁系统建模研究[J].湖北电力,2014,38(4):62-65.ZHOU Kunpeng,DING Kai,CHEN Qiao,et al.Study on the excitation system model building for unit No.6 in Jingmen Cogeneration Plant[J].Hubei Electric Power,2014,38(4):62-65.
[9]张阳,董久晨,王西田,等.自并励静止励磁系统精细建模仿真研究[J].大电机技术,2016(4):55-60.ZHANG Yang,DONG Jiuchen,WANG Xitian,et al.Study on the exact simulation model of potential source static excitation system[J].Large Electric Machine and Hydraulic Turbine,2016(4):55-60.
[10]莫瑶,张璇.基于BPA的励磁系统建模与仿真[J].水电站机电技术,2018,14(1):15-18.MO Yao,ZHANG Xuan.BPA-based modeling and simulation of excitation system[J].Mechanical&Electrical Technique of Hydropower Station,2018,14(1):15-18.
[11]Standard simplified computer representation for power system stability studies UNITROL?6000.ABB[R].
[12]李基成.现代同步发电机励磁系统设计及应用[M].3版.北京:中国电力出版社,2017.
[13]王兆安.电力电子技术[M].北京:机械工业出版社,2010.
[14]同步发电机励磁系统建模导则:DL/T 1167-2012[S].
[15]荀吉辉,熊尚峰.稳定计算用发电机励磁系统模型参数测试及校核分析[J].电力系统保护与控制,2009,37(17):20-25,31.XUN Jihui,XIONG Shangfeng.Test and analysis of excitation system model for power system stability studies[J].Power System Protection and Control,2009,37(17):20-25,31.
[16]同步电机励磁系统电力系统研究用模型:GB/T 7409.2-2008[S].
[17]IEEE recommended practice for excitation system models for power system stability studies:IEEE Std 421.5-2016[S].2016.
[18]印永华,卜广全.PSD-BPA暂态稳定程序用户手册[Z].北京:中国电力科学研究院,2012.
[19]大型汽轮发电机励磁系统技术条件:DL/T 843-2010[S].2010.
[20]同步电机励磁系统定义:GB/T 7409.1-2008[S].2008.