针对直流偏移和谐波干扰的单相锁相环

doi:10.19595/j.cnki.1000-6753.tces.200595

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (4055 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Aiming at the common problems of DC offset and harmonic interference in power grids, an improved phase-locked loop algorithm based on second-order generalized integrator phase- locked loop (SOGI-PLL) is proposed. In order to suppress the DC offset and simplify the parameter design, an integral branch is added to the pre-stage second-order generalized integrator (SOGI), and the SOGI is changed to a fixed frequency structure. A moving average filter is introduced into the post-stage loop of phase-locked loop (PLL) to enhance filtering performance. For the purpose of speeding up dynamic response, the integral part of PI controller is removed. Bode diagram analysis and small signal model derivation are used to improve structure design and determine the corresponding parameters. The proposed improved single-phase phase-locked loop technology can effectively eliminate DC offset and high-frequency harmonics, while having good dynamic performance and stability. Finally, Matlab/Simulink simulation and related experiments verify the proposed method.

Key words： Second-order generalized integrator phase-locked loop DC offset harmonic interference

Received: 02 June 2020

PACS:

TM761

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	Zeng Jun
	Cen Dehai
	Chen Run
	Liu Junfeng

Cite this article:

Zeng Jun,Cen Dehai,Chen Run等. Single-Phase Phase-Locked Loop for DC Offset and Harmonic Interference[J]. Transactions of China Electrotechnical Society, 2021, 36(16): 3504-3515.

URL:

https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.200595 OR https://dgjsxb.ces-transaction.com/EN/Y2021/V36/I16/3504

[1] 何宇, 漆汉宏, 罗琦, 等. 基于分数阶滤波器的三相锁相环技术[J]. 电工技术学报, 2019, 34(12): 2572-2583.
He Yu, Qi Hanhong, Luo Qi, et al.A novel three- phase phase-locked loop method based on fractional- order filter[J]. Transactions of China Electrotechnical Society, 2019, 34(12): 2572-2583.
[2] 郭磊, 王丹, 刁亮, 等. 针对电网不平衡与谐波的锁相环改进设计[J]. 电工技术学报, 2018, 33(6): 1390-1399.
Guo Lei, Wang Dan, Diao Liang, et al.A modified design of phase-locked loop for unbalanced and distorted grid voltage conditions[J]. Transactions of China Electrotechnical Society, 2018, 33(6): 1390-1399.
[3] 赵强松, 陈莎莎, 周晓宇, 等. 用于并网逆变器谐波抑制的重复-比例复合控制器分析与设计[J]. 电工技术学报, 2019, 34(24): 5189-5198.
Zhao Qiangsong, Chen Shasha, Zhou Xiaoyu, et al.Analysis and design of combination controller based on repetitive control and proportional control for harmonics suppression of grid-tied inverters[J]. Transactions of China Electrotechnical Society, 2019, 34(24): 5189-5198.
[4] 钟佩军, 孙建军, 司学振, 等. 基于电压扰动源的并网逆变器输出阻抗测量方法[J]. 电工技术学报, 2019, 34(22): 4739-4750.
Zhong Peijun, Sun Jianjun, Si Xuezhen, et al.Measurement method of inverter output impedance based on voltage disturbance source[J]. Transactions of China Electrotechnical Society, 2019, 34(22): 4739-4750.
[5] 张晓, 谭力, 鲜嘉恒, 等. LCL并网逆变器预测电流控制算法[J]. 电工技术学报, 2019, 34(增刊1): 189-201.
Zhang Xiao, Tan Li, Xian Jiaheng, et al.Predictive current control algorithm for grid-connected inverter with LCL filter[J]. Transactions of China Electro- technical Society, 2019, 34(S1): 189-201.
[6] 周鹏, 张新燕, 邸强, 等. 基于虚拟同步机控制的双馈风电机组预同步并网策略[J]. 电力系统自动化, 2020, 44(14): 71-84.
Zhou Peng, Zhang Xinyan, Di Qiang, et al.Pre- synchronous grid-connection strategy of DFIG-based wind turbine with virtual synchronous generator control[J]. Automation of Electric Power Systems, 2020, 44(14): 71-84.
[7] 赵清林, 宋文璐, 袁精, 等. 弱电网中基于调节器重构的多机并网稳定性研究[J]. 电机与控制学报, 2020, 24(1): 111-118.
Zhao Qinglin, Song Wenlu, Yuan Jing, et al.Stability analysis of multi-grid-connected inverters based on regulator reconstruction in weak grid[J]. Electric Machines and Control, 2020, 24(1): 111-118.
[8] 金楠, 窦智峰, 李琰琰, 等. 电压源并网变换器有限控制集预测电流控制[J]. 电机与控制学报, 2019, 23(9): 123-130.
Jin Nan, Dou Zhifeng, Li Yanyan, et al.Finite control sets predictive current control of voltage source grid-connected converter[J]. Electric Machines and Control, 2019, 23(9): 123-130.
[9] 侯立健, 朱长青, 陈雅, 等. 基于二阶广义积分器的单相并网系统锁相技术的研究[J]. 电测与仪表, 2016, 53(13): 84-89.
Hou Lijian, Zhu Changqing, Chen Ya, et al.Research on SOGI for phase lock technique of the single-phase grid-connected system[J]. Electrical Measurement & Instrumentation, 2016, 53(13): 84-89.
[10] 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.
[11] Song H S, Nam K.Instantaneous phase-angle estimation algorithm under unbalanced voltage-sag conditions[J]. IEE Proceedings-Generation, Trans- mission and Distribution, 2000, 147(6): 409-415.
[12] 吴振军, 秦方圆, 杨凯. 基于滑动离散傅里叶变换的锁相环设计[J]. 电器与能效管理技术, 2017(6): 78-82.
Wu Zhenjun, Qin Fangyuan, Yang Kai.Design of phase locked loop based on sliding discrete fourier transform[J]. Electrical & Energy Management Technology, 2017(6): 78-82.
[13] 陈四雄, 易龙强, 黄文俊, 等. 基于构造非正交向量的单相锁相技术研究[J]. 电工技术学报, 2019, 34(2): 398-408.
Chen Sixiong, Yi Longqiang, Huang Wenjun, et al.Single-phase phase-locked technique based on con- structing non-orthogonal vector[J]. Transactions of China Electrotechnical Society, 2019, 34(2): 398-408.
[14] 回楠木, 王大志, 李云路. 基于复变陷波器的并网锁相环直流偏移消除方法[J]. 电工技术学报, 2018, 33(24): 5897-5906.
Hui Nanmu, Wang Dazhi, Li Yunlu.DC-offset elimination method for grid-connected phase-locked loop based on complex notch filter[J]. Transactions of China Electrotechnical Society, 2018, 33(24): 5897-5906.
[15] 陈红兵, 闵晶妍. 基于正交信号发生器的单相锁相环的研究[J]. 电力电子技术, 2014, 48(11): 23-25.
Chen Hongbing, Min Jingyan.Research on single- phase phase-locked loop based on orthogonal signal generator[J]. Power Electronics, 2014, 48(11): 23-25.
[16] Akhtar M A, Saha S.An adaptive frequency-fixed second-order generalized integrator-quadrature signal generator using fractional-order conformal mapping based approach[J]. IEEE Transactions on Power Electronics, 2019, 35(6): 5548-5552.
[17] 严志星, 曾君, 赖臻, 等. 一种基于内置变压器的高增益双向DC-DC变换器[J]. 电源学报, 2020, 18(3): 4-12.
Yan Zhixing, Zeng Jun, Lai Zhen, et al.High voltage- gain bidirectional DC-DC converter based on built-in transformer[J]. Journal of Power Supply, 2020, 18(3): 4-12.
[18] 盘宏斌, 龙海鸿, 朱茂琨, 等. 基于Hilbert变换和预设旋转频率的无锁相环电网同步基准正弦信号检测方法[J]. 电工技术学报, 2018, 33(10): 2345-2353.
Pan Hongbin, Long Haihong, Zhu Maokun, et al.Reference sinusoidal signal detection method of gird synchronization without phase-locked loop based on Hilbert transform and pre-set the rotation frequency[J]. Transactions of China Electrotechnical Society, 2018, 33(10): 2345-2353.
[19] Dong D, Thacker T, Burgos R, et al.On zero steady- state error voltage control of single-phase PWM inverters with different load types[J]. IEEE Transa- ctions on Power Electronics, 2011, 26(11): 3285-3297.
[20] Rodriguez P, Luna A, Muñoz-Aguilar R S, et al. A stationary reference frame grid synchronization system for three-phase grid-connected power con- verters under adverse grid conditions[J]. IEEE Transactions on Power Electronics, 2012, 27(1): 99-112.
[21] Matas J, Martin H, Hoz J D L, et al. A family of gradient descent grid frequency estimators for the SOGI filter[J]. IEEE Transactions on Power Electro- nics, 2017, 33(7): 5796-5810.
[22] Singh B, Kumar S, Jain C.Damped-SOGI-based control algorithm for solar PV power generating system[J]. IEEE Transactions on Industry Appli- cations, 2017, 53(3): 1780-1788.
[23] 张纯江, 赵晓君, 郭忠南, 等. 二阶广义积分器的三种改进结构及其锁相环应用对比分析[J]. 电工技术学报, 2017, 32(22): 42-49.
Zhang Chunjiang, Zhao Xiaojun, Guo Zhongnan, et al.Three improved second order generalized integrators and the comparative analysis in phase locked loop application[J]. Transactions of China Electrotechnical Society, 2017, 32(22): 42-49.
[24] Xiao Furong, Dong Lei, Li Li, et al.A frequency- fixed SOGI based PLL for single-phase grid- connected converters[J]. IEEE Transactions on Power Electronics, 2016, 32(3): 1713-1719.
[25] Golestan S, Guerrero J M, Vasquez J C.A nonadaptive window-based PLL for single-phase applications[J]. IEEE Transactions on Power Electronics, 2017, 33(1): 24-31.