一种改进的混合静止同步补偿器An Improved Hybrid Static Synchronous Compensator
伏祥运;王建赜;曾繁鹏;纪延超;
摘要(Abstract):
作者设计了一种改进混合静止同步补偿器,该补偿器由一个三相电压源型逆变器和补偿电容组成,通过控制三相逆变器输出电压相对于系统电压的相位差间接控制补偿器的输出无功功率。该补偿器能进行补偿功率双向连续调节,控制简单,动态响应速度快,输出电流不含低次谐波,特别是在补偿感性无功功率时,该补偿器直流侧电容电压低,可减小开关器件的应力,降低补偿器损耗,提高装置的运行效率。在理想情况下,上述逆变器容量仅为最大补偿容性无功功率的1/4。文中分析了补偿器的工作原理,推导了补偿器和逆变器的功率公式,并分析了二者的关系。最后通过实验验证了该补偿器的可行性和有效性。
关键词(KeyWords): 电力系统;灵活交流输电;无功补偿;静止无功补偿器;电压源型逆变器
基金项目(Foundation):
作者(Author): 伏祥运;王建赜;曾繁鹏;纪延超;
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DOI:
参考文献(References):
- [1]王兆安,杨军,刘进军.谐波抑制和无功功率补偿[J].北京:机械工业出版社,1998.
- [2]Schauder C,Menta H,Vector analysis and control of advanced static VAR compensators[J].IEE proceedings,1993,140(4):299-306.
- [3]李晓露,段献忠,何仰赞.不平衡系统中ASVG动态建模研究[J].中国电机工程学报,1999,19(9):76-80.Li Xiaolu,Duan Xianzhong,He Yangzan.Dynamic model of ASVG in unbalanced system[J].Proceeding of the CSEE.1999,19(9):76-80(in Chinese).
- [4]Son K M,Moon K S,Lee S K,et al.Coordination of an SVC with a ULTC reserving compensation margin for emergency control[J].IEEE Transactions on Power Delivery,2000,15(4):1193-1198.
- [5]丁凯,邹云屏,王展,等.一种适用于高压大功率的新型混合二极管钳位级联多电平变换器[J].中国电机工程学报,2004,24(9):62-67.Ding Kai,Zou Yunping,Wang Zhan,et al.A novel hybriddiode-clamp cascade multilevel converter for high power application[J].Proceedings of the CSEE,2004,24(9):62-67(in Chinese).
- [6]Peng Fangzheng,Lai JihSheng,John W.McKeever,et al.A multilevel voltage-source inverter with separate DC sources for Static Var Generation[J].IEEE Transactions on Industry Applications,1996,32(5):1130-1138.
- [7]朱永强,刘文华,邱东刚,等.基于单相STATCOM的不平衡负荷平衡化补偿的仿真研究[J].电网技术,2003,27(8):42-45.Zhu Yongqiang,Liu Wenhua,Qiu Donggang,et al.Simulation of balancing compensation of unbalanced load based on single phase STATCOM[J].Power System Technology,2003,27(8):42-45(in Chinese).
- [8]王江,王民,Tsang K M.采用主从型逆变器结构的静态同步补偿器[J].中国电机工程学报,2003,23(11):95-99.Wang Jiang,Wang Min,Tsang K M.STATCOM with the structure of main-auxiliary inverter[J].Proceedings of the CSEE,2003,23(11):95-99(in Chinese).
- [9]李正国,罗安,马国喜.大功率静止同步补偿装置IGBT模块吸收保护电路参数的多目标优化设计[J].电网技术,2004,28(13):41-44.Li Zhengguo,Luo An,Ma Guoxi.Multi-objective optimal design of IGBT snubber circuit parameters for high power STATCOM[J].Power System Technology,2004,28(13):41-44(in Chinese).
- [10]栗春,姜齐荣,王仲鸿,等.静止无功补偿器的非线性控制器的设计[J].电网技术,1998,22(6):34-38.Li Chun,Jiang Qirong,Wang Zhonghong,et al.Design of nonlinear controller for STATCOM[J].Power System Technology,1998,22(6):34-38(in Chinese).
- [11]Sensarma P S,Padiyar R,Ramanarayanan V.Analysis and performance evaluation of a distribution STATCOM for compensating voltage fluctuations[J].IEEE Transactions on Power Delivery,2001,16(2):259-263.
- [12]朱永强,刘文华,邱东刚,等.基于单相STATCOM的不平衡负荷平衡化补偿的仿真研究[J].电网技术,2003,27(8):42-45.Zhu Yongqiang,Liu Wenhua,Qiu Donggang,et al.Simulation ofbalancing compensation of unbalanced load based on single phase STATCOM[J].Power System Technology,2003,27(8):42-45(in Chinese).
- [13]郭红霞,吴捷,刘永强,等.基于强化学习算法的静止同步补偿器电压控制器[J].电网技术,2004,28(19):9-13.Guo Hongxia,Wu Jie,Liu Yongqiang,et al.Application of reinforcement learning to STATCOM controller[J].Power System Technology,2004,28(19):9-13(in Chinese).
- [14]刘文华,宋强,腾乐天,等.基于链式逆变器的50MVA静止同步补偿器的直流电压平衡控制[J].中国电机工程学报,2004,24(4):145-150.Liu Wenhua,Song Qiang,Teng Letian,et al.Balancing control of DC voltages of50MVA STATCOM based on cascade multilevel inverters[J].Proceedings of the CSEE,2005,25(3):23-28(in Chinese).
- [15]Peng F Z,Lai J S.Dynamic performance and control of a Static Var Generator using cascade multilevel inverters[J].IEEE Transactions on Industry Applications,1997,33(3):748-755.
- [16]魏文辉,刘文华,宋强,等.基于逆系统方法有功?无功解耦PWM控制的链式STATCOM动态控制策略研究[J].中国电机工程学报,2005,25(3):23-28.Wei Wenhui,Liu Wenhua,Song Qiang,et al.Research on fast dynamic control of static synchronous compensator using cascade multilevel inverters[J].Proceedings of the CSEE,2005,25(3):23-28(in Chinese).