[1]唐建宇,徐万良,刘永丽,等.基于同步旋转变换的改进型单相锁相环研究[J].控制与信息技术(原大功率变流技术),2019,(02):26-31.[doi:10.13889/j.issn.2096-5427.2019.02.005]
 TANG Jianyu,XU Wanliang,LIU Yongli,et al.An Improved Single Phase-locked Loop Based on Synchronous Reference Frame[J].High Power Converter Technology,2019,(02):26-31.[doi:10.13889/j.issn.2096-5427.2019.02.005]
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基于同步旋转变换的改进型单相锁相环研究()
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《控制与信息技术》(原《大功率变流技术》)[ISSN:2095-3631/CN:43-1486/U]

卷:
期数:
2019年02期
页码:
26-31
栏目:
控制理论与应用
出版日期:
2019-04-05

文章信息/Info

Title:
An Improved Single Phase-locked Loop Based on Synchronous Reference Frame
文章编号:
2096-5427(2019)02-0026-06
作者:
唐建宇徐万良刘永丽成正林文 亮
(株洲中车时代电气股份有限公司,湖南株洲 412001)
Author(s):
TANG Jianyu XU Wanliang LIU Yongli CHENG ZhenglinWEN Liang
( Zhuzhou CRRC Times Electric Co., Ltd., Zhuzhou, Hunan 412001, China )
关键词:
单相数字锁相环同步旋转坐标系并网变流器
Keywords:
single phase digital phase-locked loop synchronous reference frame grid-connected inverter
分类号:
TM464
DOI:
10.13889/j.issn.2096-5427.2019.02.005
文献标志码:
A
摘要:
准确快速地获取电网电压的相位、频率和幅值信息是并网变流器稳定运行的保障。目前常用的单相锁相环(SPLL)由于含有低通滤波器或构造虚拟正交信号造成延时问题,动态特性较差,获取电网电压相位、频率和幅值等信息速度较慢。对此,文章提出一种改进型单相锁相环,通过对输入的电网电压信号实施短延时并利用三角函数公式运算,得到相移90°的正交信号,再参照基于αβ静止坐标系到dq同步旋转坐标系的三相数字锁相环原理,可实现基于虚拟两相直角坐标系的单相数字锁相环控制。该单相锁相环控制算法简单快速且易于实现,Matlab仿真和实验结果表明,该锁相环能准确地跟踪电网电压频率、相位和幅值变化,并快速达到稳定状态。
Abstract:
Accurate tracking of phase angle, frequency and amplitude of the utility voltage is essential to ensure correct operation of grid connected inverters. The commonly used single phase-locked loop(SPLL) has poor dynamic characteristics due to the problem of delay caused by low-pass filter or the construction of virtual quadrature signal. Therefore, it is slower in obtaining the information of phase, frequency and amplitude of grid voltage. To solve this problem, it presented an improved single phase-locked loop. Short delay of its input voltage signal is obtained and trigonometric function is used to obtain the quadrature signal with 90° phase shift. According to the principle of three-phase digital phase-locked loop(DPLL) based on the transformation from αβ stationary reference to dq synchronously rotating reference, the single-phase digital phase-locked(SPLL) control based on a fictitious two-phase rectangular coordinate system is realized. The improved algorithm of SPLL is simple, fast and easy to implement. The results of simulation analysis based on Matlab and experiments show that the improved SPLL can accurately track voltage frequency, phase and amplitude changes of power grid, and can quickly achieve stability

参考文献/References:

[1] 张兴,张崇巍. PWM整流器及其控制[M]. 北京:机械工业出版社,2017:400-403.
 [2] 孙凯. 电气化铁路用级联型单相SVG控制策略研究[D]. 北京:北方工业大学,2013:14-17.
[3] 金曼,苏建徽.光伏并网逆变器中的单相数字锁相环研究应用[J].电力电子技术,2011,45(6):6-8.
[4] 吴春华,许富强,周笛青,等 .一种单相锁相环的数字实现[J].电气传动,2012,42(6):13-16.
[5] 任碧莹,钟彦儒,孙向东,等.基于有限冲击响应滤波器线性相移控制的单相系统数字锁相环[J].电工技术学报,2016,23(8):121-124.
[6] 李明,王跃,方雄,等.无正交虚拟信号生成的单相DQ锁相环研究[J].中国电机工程学报,2011,31(5):27-31.
 [7] 袁江伟,吕征宇.一种新型的单相并网系统锁相环[J].电力电子技术,2011,45(7):81-82.
[8] 王冲,於峰,陈荣.基于广义积分器的电力单相锁相环研究[J].高压电器,2011,47(4):13-16.
 [9] 陶兴华,李永东,孙敏,等.一种基于同步旋转坐标变换的单相锁相环新算法[J].电工技术学报,2012,27(6):147-152.

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备注/Memo

备注/Memo:
收稿日期:2019-01-07
作者简介:唐建宇(1981—),男,工程师,研究方向为网侧变流器控制技术。
更新日期/Last Update: 2019-04-19