TSC与STATCOM串联复合系统及其控制方法  

TSC and STATCOM Series Composite System and Its Control Method

作　　者：彭星 姜飞[1,2] 涂春鸣 郭祺[3] 侯玉超[3] 卢柏桦 PENG Xing;JIANG Fei;TU Chunming;GUO Qi;HOU Yuchao;LU Baihua(School of Electrical and Information Engineering,Changsha University of Science&Technology,Changsha 410114,Hunan Province,China;Hunan Key Laboratory of Energy Internet Supply-demand and Operation,Changsha 410004,Hunan Province,China;National Electric Power Conversion and Control Engineering Technology Research Center(Hunan University),Changsha 410082,Hunan Province,China)

机构地区：[1]长沙理工大学电气与信息工程学院,湖南省长沙市410114 [2]能源互联网供需运营湖南省重点实验室,湖南省长沙市410004 [3]国家电能变换与控制工程技术研究中心(湖南大学),湖南省长沙市410082

出　　处：《电网技术》2021年第10期4114-4124,共11页Power System Technology

基　　金：国家自然科学基金青年基金(51707014);湖南省教育厅资助科研项目(20B029);湖南省科技创新平台与人才计划(2019TP105)。

摘　　要：合理科学的配电网容性无功补偿能够有效减少电能损耗、提高电能质量、保障负载侧设备的正常运行。综合考虑有源器件容量及其电压应力,将晶闸管投切电容器(thyristor switched capacitor,TSC)与静止同步补偿器(static synchronous compensator,STATCOM)相串联,提出了一种TSC与STATCOM串联复合系统(TSC-STATCOM);分别从输出电压大小、功率等级、功率损耗等角度,对比分析了TSC-STATCOM与电感耦合式STATCOM(L-STATCOM)的性能差异性,并提出了TSC-STATCOM电路参数的设计方法;提出了考虑逆变器无功电流跟踪与TSC模块投切的TSC-STATCOM综合控制策略。仿真与实验结果验证了所提拓扑与控制方法的正确性与有效性。Capacitive reactive power compensation in the distribution network can effectively reduce power loss,improve power quality,and ensure the normal operation of load-side equipment.Considering the capacity and voltage stress of the active devices,a TSC and STATCOM series composite system(TSC-STATCOM)is proposed,which is composed of a Thyristor Switched Capacitor(TSC)and a Static Synchronous Compensator(STATCOM)in series.From the perspectives of the output voltage,the power level,and the power loss,the performance differences between TSC-STATCOM and inductively coupled STATCOM(L-STATCOM)are compared and analyzed,and the design method of TSC-STATCOM circuit parameters is proposed.A TSC-STATCOM comprehensive control strategy considering the inverter reactive current tracking and TSC module switching is proposed.Simulation and experimental results verify the correctness and effectiveness of the proposed topology and control method.

关 键 词：静止同步补偿器 晶闸管投切电容器 容性补偿 复合系统 

分 类 号：TM721[电气工程—电力系统及自动化]