静止同步串联补偿器的启停策略
|
摘要
静止同步串联补偿器(SSSC)因启动困难问题一直制约其工程应用和发展。提出一种可转换的带外接充电支路的SSSC电路,将其充电状态和正常运行状态设计为2种不同的工作模态;详细分析基于上述电路的SSSC启停方案,即基于网侧旁路开关的"零电流分"启动策略和"零电压合"停运策略,实现SSSC启停过程中系统的稳定;最后,在南京220 kV西环网统一潮流控制器(UPFC)工程上验证了所提SSSC启停策略的正确性。
The application and development of the SSSC(Static Synchronous Series Compensator) are restricted due to the difficulty of its start-up. A novel SSSC circuit with external charging circuit is proposed,whose charging state and normal operation state are designed as two different working modes. The start-up and shutdown control strategy for SSSC is analyzed in detail based on the proposed circuit,i.e. the bypass switch on the grid side is opened while its current is zero in start-up stage,and closed while its voltage is zero in shutdown stage. Therefore,the power of the grid is stable during the whole start-up and shutdown progress of SSSC. Finally,the proposed start-up and shutdown control strategy for SSSC is verified in the 220 kV Nanjing Western UPFC Project.
The application and development of the SSSC(Static Synchronous Series Compensator) are restricted due to the difficulty of its start-up. A novel SSSC circuit with external charging circuit is proposed,whose charging state and normal operation state are designed as two different working modes. The start-up and shutdown control strategy for SSSC is analyzed in detail based on the proposed circuit,i.e. the bypass switch on the grid side is opened while its current is zero in start-up stage,and closed while its voltage is zero in shutdown stage. Therefore,the power of the grid is stable during the whole start-up and shutdown progress of SSSC. Finally,the proposed start-up and shutdown control strategy for SSSC is verified in the 220 kV Nanjing Western UPFC Project.
引文
[1] SEN K.SSSC-static synchronous series compensator:theory,mode-ling,and applications[J].IEEE Transactions on Power Delivery,1998,13(1):241-246.
[2] 何大愚.柔性交流输电技术及其控制器研制的新发展——TCPST,IPC(TCIPC)和SSSC[J].电力系统自动化,1997,21(6):1-6.HE Dayu.Facts technology and new progress in the development of its controllers-TCPST,IPC(TCIPC) and SSSC[J].Automation of Electric Power Systems,1997,21(6):1-6.
[3] 周俊宇.静止同步串联补偿器在电力系统中的应用综述[J].电气应用,2006,25(4):51-54,121.ZHOU Junyu.Review of the applications of static synchronous series compensator in power system[J].Electrotechnical Application,2006,25(4):51-54,121.
[4] 张帆,徐政.静止同步串联补偿器控制方式及特性研究[J].中国电机工程学报,2008,28(19):75-80.ZHANG Fan,XU Zheng.Study on control and characteristics of static synchronous series compensator[J].Proceedings of the CSEE,2008,28(19):75-80.
[5] 刘慧威,姜旭,肖湘宁.基于级联多电平逆变器的静止同步串联补偿器仿真研究[J].现代电力,2006,23(2):19-23.LIU Huiwei,JIANG Xu,XIAO Xiangning.The simulation of SSSC based on cascaded multilevel inverter[J].Modern Electric Power,2006,23(2):19-23.
[6] 张爱国,张建华,蒋程.静止同步串联补偿器的恒阻抗模型及其双闭环控制策略[J].电网技术,2010,34(3):106-111.ZHANG Aiguo,ZHANG Jianhua,JIANG Cheng.Constant-impedance model of static synchronous series compensator and its double closed loop control strategy[J].Power System Technology,2010,34(3):106-111.
[7] 吴杰康,蒋程,张建华,等.一种优化系统动态性能的新型SSSC控制策略[J].电工技术学报,2011,26(12):156-161.WU Jiekang,JIANG Cheng,ZHANG Jianhua,et al.A novel static synchronous series compensator control strategy for improving the dynamic performance of power systems[J].Transactions of China Electrotechnical Society,2011,26(12):156-161.
[8] 鲁江,秦健,潘磊,等.南京UPFC工程控制保护系统架构与配置研究[J].江苏电机工程,2015,34(6):1-5.LU Jiang,QIN Jian,PAN Lei,et al.Study on architecture and configuration for control and protection system of Nanjing UPFC project[J].Jiangsu Electrical Engineering,2015,34(6):1-5.
[9] 杜翼,朱克平,江道灼,等.含有限流式静止同步串联补偿器的直流配电网[J].电力自动化设备,2014,34(8):108-113,121.DU Yi,ZHU Keping,JIANG Daozhuo,et al.DC distribution network containing SSSC-FCL[J].Electric Power Automation Equipment,2014,34(8):108-113,121.
[10] 凌峰,李九虎,田杰,等.适用于双回线路的统一潮流控制器系统结构优化分析[J].电力系统自动化,2015,39(21):113-119.LING Feng,LI Jiuhu,TIAN Jie,et al.Optimization analysis of UPFC system structure for double-circuit lines[J].Automation of Electric Power Systems,2015,39(21):113-119.
[11] 姜旭,肖湘宁,尹忠东,等.H桥级联式SSSC直流侧电容值选择及自励启动充能策略[J].电力系统自动化,2007,31(3):41-46.JIANG Xu,XIAO Xiangning,YIN Zhongdong,et al.Selection of DC capacitance and schemes of self-excitation startup charge for the H-bridge cascading SSSC[J].Automation of Electric Power Systems,2007,31(3):41-46.
[12] 宋方方,蔡林海,陆振纲,等.级联H桥SSSC的自励启动方法研究[J].智能电网,2017,5(6):515-523.SONG Fangfang,CAI Linhai,LU Zhengang,et al.Research of self-excitation methods to start a cascaded H-bridge SSSC[J].Smart Grid,2017,5(6):515-523.
[13] 潘磊,李继红,田杰,等.统一潮流控制器的平滑启动和停运策略[J].电力系统自动化,2015,39(12):159-164,171.PAN Lei,LI Jihong,TIAN Jie,et al.Smooth start and stop strategies for unified power flow controllers[J].Automation of Electric Power Systems,2015,39(12):159-164,171.
[14] 沈忱,江道灼,吕文幍,等.限流式统一潮流控制器的启停控制策略[J].电力系统自动化,2013,37(22):101-105.SHEN Chen,JIANG Daozhuo,Lü Wentao,et al.Start-stop control strategy for UPFC with fault current limiting[J].Automation of Electric Power Systems,2013,37(22):101-105.
[15] 黄如海,杨光,郭有强,等.南京UPFC工程母联开关接地故障分析[J].供用电,2017,34(8):28-32.HUANG Ruhai,YANG Guang,GUO Youqiang,et al.Analysis of an actual ground fault for Nanjing UPFC Project[J].Distribution & Utilization,2017,34(8):28-32.
[2] 何大愚.柔性交流输电技术及其控制器研制的新发展——TCPST,IPC(TCIPC)和SSSC[J].电力系统自动化,1997,21(6):1-6.HE Dayu.Facts technology and new progress in the development of its controllers-TCPST,IPC(TCIPC) and SSSC[J].Automation of Electric Power Systems,1997,21(6):1-6.
[3] 周俊宇.静止同步串联补偿器在电力系统中的应用综述[J].电气应用,2006,25(4):51-54,121.ZHOU Junyu.Review of the applications of static synchronous series compensator in power system[J].Electrotechnical Application,2006,25(4):51-54,121.
[4] 张帆,徐政.静止同步串联补偿器控制方式及特性研究[J].中国电机工程学报,2008,28(19):75-80.ZHANG Fan,XU Zheng.Study on control and characteristics of static synchronous series compensator[J].Proceedings of the CSEE,2008,28(19):75-80.
[5] 刘慧威,姜旭,肖湘宁.基于级联多电平逆变器的静止同步串联补偿器仿真研究[J].现代电力,2006,23(2):19-23.LIU Huiwei,JIANG Xu,XIAO Xiangning.The simulation of SSSC based on cascaded multilevel inverter[J].Modern Electric Power,2006,23(2):19-23.
[6] 张爱国,张建华,蒋程.静止同步串联补偿器的恒阻抗模型及其双闭环控制策略[J].电网技术,2010,34(3):106-111.ZHANG Aiguo,ZHANG Jianhua,JIANG Cheng.Constant-impedance model of static synchronous series compensator and its double closed loop control strategy[J].Power System Technology,2010,34(3):106-111.
[7] 吴杰康,蒋程,张建华,等.一种优化系统动态性能的新型SSSC控制策略[J].电工技术学报,2011,26(12):156-161.WU Jiekang,JIANG Cheng,ZHANG Jianhua,et al.A novel static synchronous series compensator control strategy for improving the dynamic performance of power systems[J].Transactions of China Electrotechnical Society,2011,26(12):156-161.
[8] 鲁江,秦健,潘磊,等.南京UPFC工程控制保护系统架构与配置研究[J].江苏电机工程,2015,34(6):1-5.LU Jiang,QIN Jian,PAN Lei,et al.Study on architecture and configuration for control and protection system of Nanjing UPFC project[J].Jiangsu Electrical Engineering,2015,34(6):1-5.
[9] 杜翼,朱克平,江道灼,等.含有限流式静止同步串联补偿器的直流配电网[J].电力自动化设备,2014,34(8):108-113,121.DU Yi,ZHU Keping,JIANG Daozhuo,et al.DC distribution network containing SSSC-FCL[J].Electric Power Automation Equipment,2014,34(8):108-113,121.
[10] 凌峰,李九虎,田杰,等.适用于双回线路的统一潮流控制器系统结构优化分析[J].电力系统自动化,2015,39(21):113-119.LING Feng,LI Jiuhu,TIAN Jie,et al.Optimization analysis of UPFC system structure for double-circuit lines[J].Automation of Electric Power Systems,2015,39(21):113-119.
[11] 姜旭,肖湘宁,尹忠东,等.H桥级联式SSSC直流侧电容值选择及自励启动充能策略[J].电力系统自动化,2007,31(3):41-46.JIANG Xu,XIAO Xiangning,YIN Zhongdong,et al.Selection of DC capacitance and schemes of self-excitation startup charge for the H-bridge cascading SSSC[J].Automation of Electric Power Systems,2007,31(3):41-46.
[12] 宋方方,蔡林海,陆振纲,等.级联H桥SSSC的自励启动方法研究[J].智能电网,2017,5(6):515-523.SONG Fangfang,CAI Linhai,LU Zhengang,et al.Research of self-excitation methods to start a cascaded H-bridge SSSC[J].Smart Grid,2017,5(6):515-523.
[13] 潘磊,李继红,田杰,等.统一潮流控制器的平滑启动和停运策略[J].电力系统自动化,2015,39(12):159-164,171.PAN Lei,LI Jihong,TIAN Jie,et al.Smooth start and stop strategies for unified power flow controllers[J].Automation of Electric Power Systems,2015,39(12):159-164,171.
[14] 沈忱,江道灼,吕文幍,等.限流式统一潮流控制器的启停控制策略[J].电力系统自动化,2013,37(22):101-105.SHEN Chen,JIANG Daozhuo,Lü Wentao,et al.Start-stop control strategy for UPFC with fault current limiting[J].Automation of Electric Power Systems,2013,37(22):101-105.
[15] 黄如海,杨光,郭有强,等.南京UPFC工程母联开关接地故障分析[J].供用电,2017,34(8):28-32.HUANG Ruhai,YANG Guang,GUO Youqiang,et al.Analysis of an actual ground fault for Nanjing UPFC Project[J].Distribution & Utilization,2017,34(8):28-32.