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电网技术  2010 

改善动态相位跟踪和不平衡电压检测性能的改进软锁相环算法

, PP. 31-35

Keywords: 相位检测,软锁相环,静止同步补偿器,延时信号消除,前向积分,动态相位跟踪,不平衡电压检测

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Abstract:

相位检测是控制系统的基础,软锁相环检测适用于电压畸变场合,便于数字化实现。分析了软锁相环应用于静止同步补偿器时面临的若干问题,并提出了2方面的改进方案一是针对超前/滞后环节参数选取困难的问题,将其滤波功能转移到前置延时信号消除环节中;二是q轴电压经PI调节的输出直接作为相位的误差信号,减少了前向积分环节。通过仿真实验证明改进后的软锁相环在动态相位跟踪及不平衡电压检测等方面的性能有显著改善。

References

[1]  武守远,周孝信,赵贺,等.电力系统新技术——灵活交流输电系统的发展及研究[J].电网技术,1996,20(5):1-3.
[2]  Wu Shouyuan,Zhou Xiaoxin,Zhao He,et al.New technology in power system-development and study of flexible AC transmission systems[J].Power System Technology,1996,20(5):1-3(in Chinese).
[3]  刘文华,宋强,滕乐天,等.基于链式逆变器的50 MVA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.
[4]  魏文辉,宋强,滕乐天,等.基于反故障控制的链式STATCOM动态控制策略的研究[J].中国电机工程学报,2005,25(4):19-24.
[5]  Wei Wenhui,Song Qiang,Teng Letian,et al.Research on anti-fault
[6]  dynamic control of static synchronous compensator using cascade multilevel inverters[J].Proceedings of the CSEE,2005,25(4):19-24(in Chinese).
[7]  Kaura V,Blasko V.Improved control for high power static var compensator using novel vector product phase locked loop [J].International Journal of Electronics,1999,86(7):837-855.
[8]  Gole A M,Sood V K.Operation of a phase locked loop system under distorted utility conditions[J].IEEE Trans on Industry Applications,1997,33(1):58-63.
[9]  Kaura V,Blasko V.Operation of a phase locked loop system under distorted utility conditions[J].IEEE Trans on Industry Application,1997,33(1):58-63.
[10]  徐健飞,庞浩,王赞基,等.新型全数字锁相环的逻辑电路设计[J].电网技术,2006,30(13):81-84.
[11]  Xu Jianfei,Pang Hao,Wang Zanji,et al.A logic circuit design of all digital phase-locked loop[J].Power System Technology,2006,30(13):81-84(in Chinese).
[12]  吴静,赵伟.适用于非同步采样的相位差准确测量方法[J].电网技术,2006,30(7):73-76.
[13]  Wu Jing,Zhao Wei.A new accurate measuring method of phase difference suitable for asynchronous sampling[J].Power System Technology,2006,30(7):73-76(in Chinese).
[14]  Verdelho P,Marques G D.Four wire active power filter control circuit with phase locked loop phase angle determination[J].IEE Power Electronics and Variable Speed Drives,1998,21-23.
[15]  Sakamoto S,Izumi T,Yokoyama T,et al.A new method for digital PLL control using estimated quadrature two phase frequency detection[C].Power Conversion Conference,2002.
[16]  Liu Wenhua,Song Qiang,Teng Letian,et al.Balancing control of DC voltages of 50 MVA STATCOM based on cascade multilevel inverters [J].Proceedings of the CSEE,2004,24(4):145-150(in Chinese).
[17]  刘文华,宋强,滕乐天,等.基于集成门级换向晶闸管与链式逆变器的±50 Mvar精致同步补偿器[J].中国电机工程学报,2008,28(15):55-60.
[18]  Liu Wenhua,Song Qiang,Teng Letian,et al.±50 Mvar STATCOM based on chain circuit converter employing IGCT’s[J].Proceedings of the CSEE,2008,28(15):55-60(in Chinese).
[19]  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.
[20]  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).
[21]  袁志昌,宋强,刘文华,等.链式STATCOM系统短路电流计算[J].电网技术,2005,29(20):20-23.
[22]  Yuan Zhichang,Song Qiang,Liu Wenhua,et al.Short-circuit current calculation method for cascaded STATCOM[J].Power System Technology,2005,29(20):20-23(in Chinese).
[23]  邓家泽,王奔,黄崇鑫,等.基于晶闸管STATCOM的无功补偿控制[J].电网技术,2009,33(1):48-51.
[24]  Deng Jiaze,Wang Ben,Huang Chongxin,et al.Reactive power compensation control based on thyristor based STATCOM[J].Power System Technology, 2009,33(1):48-51(in Chinese).
[25]  Changjiang Z,Fitzer C.Software phase-locked loop applied to dynamic voltage restorer(DVR) [J].IEEE Power Engineering Society Winter Meeting,2001,3:1033-1038.
[26]  Xu L,Bjarne R A,Phillip C.VSC transmission operation under unbalanced AC conditions-analysis and control design[J].IEEE Trans on Power Delivery,2005,20(1):327-434.

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