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采用正弦幅值积分器的电网基波电压同步信号检测

, PP. 104-111

Keywords: 同步信号,正弦幅值积分器,不对称,幅值,相位

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Abstract:

三相并网变流器的控制需要电网基波电压同步信号的准确检测。为了满足在电网电压不对称时的控制需求,基波正负序分量的快速准确分离尤为重要。采用正弦幅值积分器,提出一种能够在电网频率变化情况下,快速准确地提取基波正序分量和负序分量的方法。通过对不对称电网电压的分解,提出采用正弦幅值积分器的同步信号检测结构和电路。建立采用正弦幅值积分器的同步信号提取方法的时域和频域数学模型,分析其实现正负序分离的机理,并确定反馈系数的选取选择。同时分析电网频率变化对同步信号检测的影响,构造频率自适应调整算法,克服了频率变化对同步信号提取的影响。与其他方法相比,该方法结构简单,无需进行瞬时对称分量分离,就可提取出电网电压基波的正负序分量,计算量小。理论分析和实验结果表明,该方法可在频率变化的情况下快速准确的提取电网电压基波正负序分量的幅值和相位,实现同步信号的检测。

References

[1]  Blaabjerg F,Teodorescuk R,Liserre M,et al.Overview of control and grid synchronization for distributed power generation systems[J].IEEE Transactions on Industrial Electronics,2006,53(5):1398-1409.
[2]  Tsili M,Papathanassiou S.A review of grid code technical requirements for wind farms[J].IET Renewable Power Generation,2009,3(3):308-332.
[3]  Geng H,Xu D,Wu B.A novel hardware-based all-digital phase-locked loop applied to grid-connected power converters[J].IEEE Transactions on Industrial Electronics,2011,58(5):1737-1745.
[4]  张桂斌,徐政,王广柱.基于空间矢量的基波正序、负序分量及谐波分量的实时检测方法[J].中国电机工程学报,2001,21(10):1-5.Zhang Guibin,Xu Zheng,Wang Guangzhu.Study and simulation of real-time detecting method for fundamental positive sequence,negative sequence components and harmonic components based on space vector[J].Proceedings of the CSEE,2001,21(10):1-5(in Chinese).
[5]  Rioual P,Pouliquen H,Louis J P.Regulation of a PWM rectifier in the unbalanced network state using a generalized model[J].IEEE Transactions on Power Electronics,1996,11(3):495-502.
[6]  Ng C H,Ran L,Bumby J.Unbalanced-grid-fault ride-through control for a wind turbine inverter[J].IEEE Transactions on Industrial Applications,2008,44(3):845-856.
[7]  袁旭峰,程时杰,文劲宇.改进瞬时对称分量法及其在正负序电量检测中的应用[J].中国电机工程学报,2008,28(1):52-58.Yuan Xufeng,Cheng Shijie,Wen Jinyu.An improved method of instantaneous symmetrical components and its detection for positive and negative sequence current[J].Proceedings of the CSEE,2008,28(1):52-58(in Chinese).
[8]  Souza H,Bradaschia F,Neves F,et al.A method for extracting the fundamental-frequency positive-sequence voltage vector based on simple mathematical transformations[J].IEEE Transactions on Power Electronics,2009,56(5):1539-1547.
[9]  Kaur V,Blasco V.Operation of a phase locked loop system under distorted utility conditions[J].IEEE Transactions on Industrial Applications,1997,33(1):58-63.
[10]  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.
[11]  Guo X,Wu W,Chen Z.Multiple-complex coefficient-filter-based phase-locked loop and synchronization technique for three-phase grid-interfaced converters in distributed utility networks[J].IEEE Transactions on Industrial Electronics,2011,58(4):1194-1204.
[12]  Routray A,Pradhan A K,Rao K P.A novel Kalman filter for frequency estimation of distorted signals in power systems[J].IEEE Transactions on Instrumentation and Measurement,2002,51(3):469-479.
[13]  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.
[14]  徐海亮,章玮,胡家兵,等.电网电压不平衡及谐波畸变时基波电压同步信号的检测[J].电力系统自动化,2012,36(5):90-95.Xu Hailing,Zhang Wei,Hu Jiabing,et al.Synchronizating signal detection of fundamental voltage under grid voltage conditions[J].Automation of Electric Power Systems,2012,36(5):90-95(in Chinese).
[15]  Freijedo F D,Doval-Gandoy J,López O,et al.Tuning of phase-locked loops for power converters under distorted utility conditions[J].IEEE Transactions on Industrial Applications,2009,45(6):2039-2047.
[16]  Yazdani D,Mojiri M,BakhshaiA,et al.A fast and accurate synchronization technique for extraction of symmetrical components[J].IEEE Transactions on Power Electronics,2009,24(3):674-684.
[17]  Rodr´ıguez P,Luna A,Mu˜noz-Aguilar R S,et al.A Stationary Reference Frame Grid Synchronization System for Three-phase Grid-Connected Power Converters Under Adverse Grid Conditions[J].IEEE Transactions on Power Electronics,2012,27(1):99-112.
[18]  Yuan X,Merk W,Stemmler H,et al.Stationary frame generalized integrators for current control of active power filters with zero steady-state error for current harmonics of concern under unbalanced and distorted operating conditions[J].IEEE Transactions on Power Electronics,2002,38(2):523-532.
[19]  K.Martin.Complex signal processing is not complex[J].IEEE Transactions on Circuits and System I:Regular Papers,2004,51(9):1823-1836.
[20]  李珊瑚,杜雄,王莉萍,等.解耦多同步参考坐标系电网电压同步信号检测方法[J].电工技术学报,2011,26(12):183-189.Li Shanhu,Du Xiong,Wang Liping,et al.A grid voltage synchronizaiton method based on decoupled multiple synchronous reference frame[J].Transactions of China Electtrotechnical Society,2011,26(12):183-189(in Chinese).

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