[1]岳小龙,张政华,师洪涛,等.一种基于调制脉冲叠加的快速电网谐波阻抗测量方法[J].控制与信息技术,2013,(06):36-41.[doi:10.13889/j.issn.2095-3631.2013.06.009]
 YUE Xiao-long,ZHANG Zheng-hua,SHI Hong-tao,et al.A Rapid Impedance Measurement Method Based on Superposed Modulated Square Pulse[J].High Power Converter Technology,2013,(06):36-41.[doi:10.13889/j.issn.2095-3631.2013.06.009]
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一种基于调制脉冲叠加的快速电网谐波阻抗测量方法()
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《控制与信息技术》[ISSN:2095-3631/CN:43-1486/U]

卷:
期数:
2013年06期
页码:
36-41
栏目:
“分布式发电、智能电网与电能质量”专刊
出版日期:
2013-12-31

文章信息/Info

Title:
A Rapid Impedance Measurement Method Based on Superposed Modulated Square Pulse
文章编号:
2095-3631(2013)06-0036-06
作者:
岳小龙张政华师洪涛张东卓放
西安交通大学电气工程学院
Author(s):
YUE Xiao-longZHANG Zheng-huaSHI Hong-taoZHANG DongZHUO Fang
(School of Electrical Engineering , Xi’an Jiaotong University, Xi’an, Shaanxi 710049, China)
关键词:
谐波阻抗阻抗测量谐波电流注入正弦幅度调制信号叠加
Keywords:
harmonic impendence impendence measurement harmonic current injection sinusoidal amplitude modulation signal superposing
分类号:
TM711.1
DOI:
10.13889/j.issn.2095-3631.2013.06.009
文献标志码:
A
摘要:
鉴于传统的测量方法测量时间长、高频准确性差,文章提出了一种新的谐波电流注入形式进行阻抗测量的方法,它可以更加快速准确地获取电网阻抗特性。该方法采用了正弦幅度调制,将方波脉冲信号频移到不同的频率区间,然后将这些调制后的信号叠加,即可得到一个频谱丰富且整个频段幅值衰减都很小的信号。采用这种形式的信号作为注入扰动电流,所得到的测量仿真结果能够表明该方法的有效性。
Abstract:
A new current injection method was presented for impedance measurement to solve the problems in traditional methods, such as long measuring time and inaccuracy of high frequency. It can get the grid impedance characteristics more rapidly and accurately. Sinusoidal amplitude modulation is used in this method to shift square-wave impulse signals to different frequency bands. Therefore, a signal with large frequency bandwidth and small amplitude attenuation can be obtained by superposing square pulse signals with sinusoidal amplitude modulation. When the signal is injected to the system as a current source, the simulation results demonstrate the effectiveness of this method.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2013- 08- 15
作者简介:岳小龙(1 9 8 9- ),男,硕士,主要研究方向为基于谐波注入的微型电网阻抗测量。
基金项目:2 01 1年国家自然科学基金项目(51 1 77 13 0);台达 2011电力电子科教发展计划重点项目(DREK2011002)
更新日期/Last Update: 2016-05-10