A Positive and Negative-Sequence Detection PLL and Its Application in Wind Power Generation System
Chen Mingliang1, Xiao Fei1, Liu Yong1, Wang Haoxiong2, Li Quanfeng3
1. Power Electrical Tech Laboratory, Naval University of Engineering Wuhan 430033 China 2. Daqo Kafan New Energy Resources Ltd. Yangzhong 212200 China 3. College of Electrical Engineering, Zhejiang University Hangzhou 310027 China
Abstract：This paper proposes a novel phase lock loop(PLL) scheme based on positive and negative-sequence cascaded delayed signal cancellation method. The positive and negative sequence components of the fundamental voltage or current in three phase system can be calculated with fast transient response, and any specified harmonic can be eliminated by choosing appropriate parameters. No low-pass filters are needed, and perfect dynamical performance can be achieved. The PLL is used in low voltage ride through control in grid-connected wind power system to provide fast and accurate grid information. Simulation and experimental results show that the frequency, phase angle and positive and negative sequence components can be obtained with fast dynamic response and high precision. The method provides a reliable basis for the control of grid connected PWM converters under asymmetrically distorted three-phase voltages in wind power systems.
陈明亮, 肖飞, 刘勇, 王颢雄, 李泉峰. 一种正负序分离锁相环及其在并网型风力发电系统中的应用[J]. 电工技术学报, 2013, 28(8): 181-186.
Chen Mingliang, Xiao Fei, Liu Yong, Wang Haoxiong, Li Quanfeng. A Positive and Negative-Sequence Detection PLL and Its Application in Wind Power Generation System. Transactions of China Electrotechnical Society, 2013, 28(8): 181-186.
[1] Chong H Ng, Li Ran, Jim Bumby. Unbalanced- grid-fault ride-through control for a wind turbine inverter[J]. IEEE Transactions on Industry Applications, 2008, 44(3): 845-856. [2] Marius Fatu, Cristian Lascu, Gheorghe Daniel Andreescu. Voltage sags ride-through of motion sensorless controlled PMSG for wind turbines[C]. Industry Applications Conference, 42nd Institute for Adranced studies Annual Meeting, Conference, 2007: 171-178. [3] Choi J W, Kim Y K, Kim H G. Digital PLL control for single-phase photovoltaic system[J]. IEEE Proceedings of Electric Power Applications, 2006, 153(1): 40-46. [4] Yazdani D, Mojiri M, Bakhshai A, et al. A fast and accurate synchronization technique for extraction of symmetrical components[J]. IEEE Transactions on Power Electronics, 2009, 24(3): 674-684. [5] Yazdani D, Bakhshai A, Joos G, et al. A nonlinear adaptive synchronization technique for grid-connected distributed energy sources[J]. IEEE Transactions on Power Electronics, 2008, 23(4): 2181-2186. [6] Rolim L, Costa da D, Aredes M. Analysis and software implementation of a robust synchronizing PLL circuit based on the pq theory[J]. IEEE Transactions on Industrial Electronics, 2006, 53(6): 1919-1926. [7] Timbus A, Teodorescu R, Blaabjerg F, et al. Synchronization methods for three phase distributed power generation systems, an overview and evaluation[C]. Proceedings of IEEE 36th Power Electronics Specialists Conference, 2005, 6: 2474-2481. [8] 龚锦霞, 解大, 张延迟. 三相数字锁相环的原理及性能[J]. 电工技术学报, 2009, 24(10): 94-99. Gong Jinxia, Xie Da, Zhang Yanehi. Principle and perforrace of the three-phase digital phase-locked loop[J]. Transactions of China Electrotechnieal Society, 2009, 24(10): 94-99. [9] Masoud Karimi Ghartemani, Reza Iravani M. A method for synchronization of power electronic converters in polluted and variable-frequency environments[J]. IEEE Transactions on Power Systems, August 2004, 19(3): 1263-1270. [10] Akagi H, Kanazawa Y, Nabae A. Generalized theory of the instantaneous reactive power in three-phase circuits[C]. Proceedsings of International Pharmaceutical Excipients Council, Tokyo, 1983: 1375-1386. [11] Dragan Jovcic. Phase locked loop system for facts[J]. IEEE Transactions on Power Systems, 2003, 18 (3): 1116-1122. [12] Rodriguez P, Pou J, Bergas J, et al. Decoupled double synchronous reference frame PLL for power converters control[J]. IEEE Transactions on Power Electronics, 2007, 22(2): 584-592. [13] 周鹏, 贺益康, 胡家兵. 电网不平衡状态下风电机组运行控制中电压同步信号的检测[J]. 电工技术学报, 2008, 23 (5): 108-113. Zhou Peng, He Yikang, Hu Jiabing. Detection of voltage synchronization signals for a wind energy generation system unbalanced grid conditions[J]. Transactions of China Electrotechnical Society, 2008, 23 (5): 108-113. [14] 王颢雄, 马伟明, 肖飞, 等. 双dq变换软件锁相环的精确模型研究[J]. 电工技术学报, 2011, 28(7): 90-96. Wang Haoxiong, Ma Weiming, Xiao Fei, et al. Study of model of software phase locked-loop based on dual-dq synchronous transform[J]. Transactions of China Electrotechnical Society, 2011, 28(7): 90-96. [15] Svensson J, Bongiorno M, Sannino A. Practical implementation of delayed signal cancellation method for phasesequence separation[J]. IEEE Transactions on Power Delivery, 2007, 22, (1): 18-26.
2013, Vol. 28 
