一种嵌入重复控制内模的三相锁相环的设计与实现

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摘要作为分布式并网发电系统众多关键技术之一的电网同步锁相技术一直是国内外研究的热点。针对现有锁相环算法需要级联无穷个滤波器（或调节器）才能完全抑制电网谐波这一问题,提出了一种嵌入重复控制内模的锁相环方法。利用重复控制内模在电网基波频率及各次谐波频率处产生谐振尖峰这一特性,结合交叉解耦复数滤波器能分离电网基波正负序的特点,设计了一种能够完全消除谐波的正负序分量提取结构,分离出的纯净正序分量经过基本的同步坐标系锁相环能提取出频率、相位等信息。最后通过Matlab/Simulink仿真和相关实验在电网电压畸变、不平衡情况下对所提锁相环方法进行了测试,结果验证了该方法的正确性和有效性。

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	何宇
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关键词 ：锁相环, 内模, 电网谐波, 复数滤波器, 正序分量

Abstract：As one of the key technologies of distributed grid-connected power generation system, grid synchronization technique is always the research hotspot. Usually numerous filters (or regulators) are needed for current phase-locked loop (PLL) algorithms to totally eliminate harmonic. Hence, a new phase-locked loop based on internal model of repetitive control is put forward. An extraction structure which can totally eliminate harmonic is designed. Wherein, the characteristic of the internal model that generates the resonant peak at grid fundamental frequency and every harmonic frequency is used, and the characteristic of multiple-complex coefficient-filter that can separate positive and negative sequence of grid fundamental wave is also taken into account. The grid frequency, phase and other related information can be extracted from the pure positive sequence by synchronous frame PLL. Finally, the proposed PLL is tested under distorted and unbalanced grid by Matlab/Simulink simulation and the related experiment. The results show the validity and superiority of this method.

Key words： Phase-locked loop internal model power network harmonic complex filter positive sequence

收稿日期: 2016-03-14 出版日期: 2016-12-02

PACS:

TM46

基金资助:河北省应用基础研究计划重点基础研究项目（13964304D）,高等学校博士学科点专项科研基金（20121333110007）,江苏省第十二批“六大人才高峰”项目（JY-019）,江苏省高校自然科学研究面上项目（16KJB460028）和江苏信息职业技术学院2016年教科研课题资助

作者简介: 何宇男,1989年生,硕士,助教,研究方向为电力电子功率变换与控制、新能源发电技术。E-mail:galuohua@163.com;漆汉宏男,1968年生,博士,教授,博士生导师,研究方向为电力电子功率变换与控制、新能源发电技术。E-mail:hhqi@ysu.edu.cn（通信作者）

引用本文:

何宇, 漆汉宏, 邓超, 张迪, 金卫国. 一种嵌入重复控制内模的三相锁相环的设计与实现[J]. 电工技术学报, 2016, 31(22): 83-91. He Yu, Qi Hanhong, Deng Chao, Zhang Di, Jin Weiguo. A Novel Three-Phase Phase-Locked Loop Method Based on Internal Model of Repetitive Control. Transactions of China Electrotechnical Society, 2016, 31(22): 83-91.

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https://dgjsxb.ces-transaction.com/CN/Y2016/V31/I22/83

[1] Balaguer I J, Lei Q, Yang S, et al. Control for grid-connected and intentional islanding operations of distributed power generation[J]. IEEE Transa- ctions on Industrial Electronics, 2011, 58(1): 147- 157.
[2] 王成山, 武震, 李鹏. 微电网关键技术研究[J]. 电工技术学报, 2014, 29(2): 1-12.
Wang Chengshan, Wu Zhen, Li Peng. Research on key technologies of microgrid[J]. Transactions of China Electrotechnical Society, 2014, 29(2): 1-12.
[3] 雷亚雄, 李建文, 李永刚. 基于准PR调节器电流双闭环LCL三相并网逆变器控制[J]. 电力系统保护与控制, 2014, 42(12): 44-50.
Lei Yaxiong, Li Jianwen, Li Yonggang. Control strategy of three-phase LCL grid-connected inverter based on quasi-PR adjuster[J]. Power System Pro- tection and Control, 2014, 42(12): 44-50.
[4] Lee K J, Lee J P, Shin D, et al. A novel grid synchronization PLL method based on adaptive low-pass notch filter for grid-connected PCS[J]. IEEE Transactions on Industrial Electronics, 2014, 61(1): 292-301.
[5] 王小立, 温靖华, 袁飞, 等. 基于频率-功率因数角组合判据的新型孤岛检测法[J]. 电力系统保护与控制, 2015, 43(14): 100-105.
Wang Xiaoli, Wen Jinghua, Yuan Fei, et al. A new anti-islanding detecting method based on combined criterion of frequency and power-factor angle[J]. Power System Protection and Control, 2015, 43(14): 100-105.
[6] Miret J, Camacho A, Castilla M, et al. Control scheme with voltage support capability for distri- buted generation inverters under voltage sags[J]. IEEE Transactions on Power Electronics, 2013, 28(11): 5252-5262.
[7] 王振树, 刘岩, 雷鸣, 等. 基于Crowbar的双馈机组风电场等值模型与并网仿真分析[J]. 电工技术学报, 2015, 30(4): 44-51.
Wang Zhenshu, Liu Yan, Lei Ming, et al. Doubly-fed induction generator wind farm aggregated model based on crowbar and integration simulation analy- sis[J]. Transactions of China Electrotechnical Society, 2015, 30(4): 44-51.
[8] Chung S K. A phase tracking system for three phase utility interface inverters[J]. IEEE Transactions on Power Electronics, 2000, 15(3): 431-438.
[9] Teodorescu R, Liserre M, Rodríguez P. Grid conver- ters for photovoltaic and wind power systems[M]. Hoboken: John Wiley & Sons, 2011.
[10] Rodriguez P, Teodorescu R, Candela I, et al. New positive-sequence voltage detector for grid synchroni- zation of power converters under faulty grid condi- tions[C]//37th IEEE Power Electronics Specialists Conference, Jeju, 2006: 1-7.
[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] Golestan S, Monfared M, Freijedo F D, et al. Performance improvement of a prefiltered synchronous- reference-frame PLL by using a PID-type loop filter[J]. IEEE Transactions on Industrial Electronics, 2014, 61(7): 3469-3479.
[13] 王宝诚, 伞国成, 郭小强, 等. 分布式发电系统电网同步锁相技术[J]. 中国电机工程学报, 2013, 33(1): 50-55.
Wang Baocheng, San Guocheng, Guo Xiaoqiang, et al. Grid synchronization and PLL for distributed power generation systems[J]. Proceedings of the CSEE, 2013, 33(1): 50-55.
[14] 赵新, 金新民, 周飞, 等. 采用降阶谐振调节器的并网逆变器锁频环技术[J]. 中国电机工程学报, 2013, 33(15): 38-44.
Zhao Xin, Jin Xinmin, Zhou Fei, et al. A frequency- locked loop technology of grid-connected inverters based on the reduced order resonant controller[J]. Proceedings of the CSEE, 2013, 33(15): 38-44.
[15] 武健, 何娜, 徐殿国. 重复控制在并联有源滤波器中的应用[J]. 中国电机工程学报, 2008, 28(18): 66-72.
Wu Jian, He Na, Xu Dianguo. Application of repeti- tive control technique in shunt active power filter[J]. Proceedings of the CSEE, 2008, 28(18): 66-72.
[16] Zhang B, Zhou K, Wang D. Multirate repetitive control for PWM DC/AC converters[J]. IEEE Transa- ctions on Industrial Electronics, 2014, 61(6): 2883- 2890.
[17] 赵强松, 叶永强, 徐国峰, 等. 改进重复控制在低采样频率逆变器中的应用[J]. 电工技术学报, 2015, 30(19): 120-127.
Zhao Qiangsong, Ye Yongqiang, Xu Guofeng, et al. Application of improved repetitive control scheme to inverter with low sampling frequency[J]. Transa- ctions of China Electrotechnical Society, 2015, 30(19): 120-127.
[18] Chen D, Zhang J, Qian Z. An improved repetitive control scheme for grid-connected inverter with frequency-adaptive capability[J]. IEEE Transactions on Industrial Electronics, 2013, 60(2): 814-823.
[19] 陈东. 并网逆变器系统中的重复控制技术及其应用研究[D]. 杭州: 浙江大学, 2013.
[20] GB/T 14549—93电能质量—公用电网谐波[S]. 1993.
[21] GB/T 15945—2008电能质量—电力系统频率偏差[S]. 2008.
[22] Carugati I, Maestri S, Donato P G, et al. Variable sampling period filter PLL for distorted three-phase systems[J]. IEEE Transactions on Power Electronics, 2012, 27(1): 321-330.