基于旋转因子变换插值的电压闪变检测算法

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (12206 KB)
输出: BibTeX | EndNote (RIS)

摘要 IEC 61000—4—15标准中的闪变仪是基于调幅波调制模型,需要经过一系列的二次方、滤波及统计等流程,其缺点是流程复杂,不利于数字闪变仪的设计。基于此,首先从数学模型上推导了IEC标准下闪变检测机理,为数字闪变仪的设计和校验提供理论依据;然后根据IEC闪变检测中存在的问题提出了基于旋转因子变换插值的闪变检测算法,通过对频谱进行旋转因子变换,再利用谱线叠加插值思想来抑制频谱泄漏和消除栅栏效应,实现了高精度估计间谐波参数,从而间接计算闪变参数。简化了闪变检测流程,减小了频谱泄漏的影响,使得闪变检测精度提高。所提方法还可以计算出多个调幅波分量的单独闪变贡献值,仿真和实际测量结果均验证了所提方法的准确性和有效性。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	李兰芳
	马明
	盛超
	王泽

关键词 ：电压闪变检测, 旋转因子, 变换插值, 间谐波, 频谱分析

Abstract：The IEC 61000—4—15 standard flicker meter is based on amplitude modulation wave modulated model, which needs a series of complex processes, such as square, filtering and statistical processes. It is inconvenient to design digital flicker meter. From the mathematical model, this paper derived the flicker detection mechanism under IEC standard firstly, and provided a theoretical basis for the design and calibration of digital flicker meter. The flicker detection method based on rotation factor transforming interpolation was proposed, according to the existed problems in IEC flicker detection. Inter-harmonics parameters estimation with a high precision was achieved. Herein, rotation factor transferred the spectra, and the spectrum lines superposition interpolation suppress the spectrum leakage and eliminate the barrier effect. Thereby flicker parameters of inter-harmonics were calculated. As a result, the flicker detection process can be simplified and the detection precision can be improved by eliminating the effects of spectrum leakage. The proposed method can also calculate separated flicker contribution value of multiple amplitude modulation wave components. Simulation results and the measured data show the accuracy and effectiveness of the proposed method.

Key words： Voltage flicker detection rotation factor transforming interpolation inter-harmonics spectral analysis

收稿日期: 2015-09-17 出版日期: 2016-12-02

PACS:

TM711

作者简介: 李兰芳女,1981年生,博士,工程师,研究方向为电力系统及电能质量分析。E-mail:lanfang1011@163.com;王泽男,1989年生,硕士研究生,研究方向为电能质量数据分析处理。E-mail:wangze89@foxmail.com（通信作者）

引用本文:

李兰芳, 马明, 盛超, 王泽. 基于旋转因子变换插值的电压闪变检测算法[J]. 电工技术学报, 2016, 31(22): 178-185. Li Lanfang, Ma Ming, Sheng Chao, Wang Ze. The Voltage Flicker Detection Algorithm Based on Rotation Factor Transforming Interpolation. Transactions of China Electrotechnical Society, 2016, 31(22): 178-185.

链接本文:

https://dgjsxb.ces-transaction.com/CN/Y2016/V31/I22/178

[1] 熊杰锋, 王柏林, 袁晓冬. 电力系统闪变机理与测量方法综述[J]. 电测与仪表, 2013, 50(3): 6-10.
Xiong Jiefeng, Wang Bolin, Yuan Xiaodong. The flicker and its detection methods in power system[J]. Electrical Measurement and Instrumentation, 2013, 50(3): 6-10.
[2] 赵山, 文黎星, 赵伟, 等. 基于微电网的电能质量问题研究[J]. 广东电力, 2012, 25(10): 61-64.
Zhao Shan, Wen Lixing, Zhao Wei, et al. Power quality research based on micro power grid[J]. Guangdong Electric Power, 2012, 25(10): 61-64.
[3] 刘华东, 张定华, 唐建宇, 等. 抑制电弧炉闪变的STATCOM 直接电压控制研究[J]. 电工技术学报, 2012, 27(9): 41-47.
Liu Huadong, Zhang Dinghua, Tang Jianyu, et al. Research on direct voltagecontrol of STATCOM for mitigating electric arc furnaces flicker[J]. Transa- ctions of China Electrotechnical Society, 2012, 27(9): 41-47.
[4] International Electrotechnical Commission (IEC). Standard 61000—4—15 Electromagnetic Compati- bility (EMC)-part 4: testing and measurement tech- niquessection 15: flickermeter-functional and design specifications[S]. 2010.
[5] Xu W. Deficiency of the IEC flicker meter for measuring interharmonic-caused voltage flickers[C]// IEEE Power Engineering Society General Meeting, 2005: 2326-2329.
[6] 高云鹏, 李峰, 陈婧, 等. 基于Teager-Kaiser能量算子Rife-Vincent窗频谱校正的电压闪变测量[J]. 电工技术学报, 2014, 29(6): 248-256.
Gao Yunpeng, Li Feng, Chen Jing, et al. Voltage flicker measurement using the Teager-Kaiser energy operator based on Rife-Vincent window spectral correction[J]. Transactions of China Electrotechnical Society, 2014, 29(6): 248-256.
[7] 李和明, 康伟, 颜湘武, 等. 一种基于Chirp-Z变换的闪变测量方法[J]. 电工技术学报, 2009, 24(3): 209-215.
Li Heming, Kang Wei, Yan Xiangwu, et al. Voltage flicker measurement based on Chirp-Z transform[J]. Transactions of China Electrotechnical Society, 2009, 24(3): 209-215.
[8] 王继东, 刘琨, 高彦静. 基于瞬时无功功率理论的电压波动检测和闪变计算[J]. 电力系统保护与控制, 2012, 40(2): 145-150.
Wang Jidong, Liu Kun, Gao Yanjing. Detection for voltage fluctuation and flicker calculation based on the instantaneous reactive power theory[J]. Power System Protection and Control, 2012, 40(2): 145-150.
[9] 王建勋, 刘会金, 肖辉. 基于同步解调的间谐波闪变测量方法[J]. 中国电机工程学报, 2011, 31(增1): 67-72.
Wang Jianxun, Liu Huijin, Xiao Hui. An approach to measure interharmonics-flicker based on synchronous demodulation[J]. Proceedings of the CSEE, 2011, 31(S1): 67-72.
[10] 焦萍, 马春燕. 基于光通量特征参数比对的IEC闪变仪适用性分析方法[J]. 电力系统保护与控制, 2015, 43(15): 85-90.
Jiao Ping, Ma Chunyan. Study on IEC flickermeter applicability based on flux parameters[J]. Power System Protection and Control, 2015, 43(15): 85-90.
[11] 雍静, 晏小龙, 曾礼强. 电压间谐波对紧凑型荧光灯光闪变效应的实验研究[J]. 电工技术学报, 2015, 30(8): 273-281.
Yong Jing, Yan Xiaolong, Zeng Liqiang. Experi- mental study for flicker of compact fluorescent lamp caused by interharmonics[J]. Transactions of China Electrotechnical Society, 2015, 30(8): 273-281.
[12] 陈哲, 袁越, 张新松, 等. 一种基于频谱分析的IEC闪变仪改进方法[J]. 电力系统保护与控制, 2012, 40(15): 29-34.
Chen Zhe, Yuan Yue, Zhang Xinsong, et al. An improved method for IEC flickermeter based on frequency domain analysis[J]. Power System Pro- tection and Control, 2012, 40(15): 29-34.
[13] 杜雄, 王国宁, 孙鹏菊, 等. 两相静止坐标系下消除不对称和谐波影响的同步信号提取方法[J]. 电工技术学报, 2015, 30(4): 249-256.
Du Xiong, Wang Guoning, Sun Pengju, et al. Synchronization signal extraction method in two- phase stationary reference frame for eliminating imbalance and harmonic effects[J]. Transactions of China Electrotechnical Society, 2015, 30(4): 249- 256.
[14] 贺建闽, 黄治清, 李群湛. 闪变仪研制及其在电气化铁道的应用[J]. 西南交通大学学报, 2004, 39(2): 217-221.
He Jianmin, Huang Zhiqing, Li Qunzhan. Develop- ment of flicker meter and application in electrified railways[J]. Journal of Southwest Jiaotong University, 2004, 39(2): 217-221.
[15] 赵海翔, 陈默子, 戴慧珠. 闪变值离散化计算的误差分析及其应用[J]. 电网技术, 2004, 28(13): 84-87.
Zhao Haixiang, Chen Mozi, Dai Huizhu. Error analysis of discrete calculation method of flicker severity and its application[J]. Power System Tech- nology, 2004, 28(13): 84-87.
[16] 李霏霏, 杨洪耕, 惠锦, 等. 一种由间谐波估计电压闪变参数的简便方法[J]. 电力系统保护与控制, 2011, 39(22): 83-89.
Li Feifei, Yang Honggeng, Hui Jin, et al. A simple method of voltage flicker estimation based on inter- harmonics[J]. Power System Protection and Control, 2011, 39(22): 83-89.
[17] 周菁菁, 王彭, 赵春宇, 等. 基于频率搜索的间谐波闪变检测方法[J]. 电力系统自动化, 2014, 38(7): 60-65.
Zhou Jingjing, Wang Peng, Zhao Chunyu, et al. A detection method of interharmonics-caused flicker based on frequency-searching[J]. Automation of Electric Power Systems, 2014, 38(7): 60-65.
[18] 任祖华, 王柏林. 精确提取闪变波动分量的新方法[J]. 电力系统及其自动化学报, 2014, 26(4): 56-60.
Ren Zuhua, Wang Bolin. Novel method on accurate extraction of flicker components in voltage[J]. Proceedings of the CSU-EPSA, 2014, 26(4): 56-60.
[19] Langella R, Testa A. Amplitude and phase modu- lation effects of waveform distortion in power systems[J]. Electrical Power Quality and Utilisation, Journal, 2007, 13(1): 25-32.
[20] 王泽, 杨洪耕, 袁晓冬. IEC框架下非同步采样时的谐波间谐波测量方法[J]. 电力系统自动化, 2015, 39(3): 69-75.
Wang Ze, Yang Honggeng, Yuan Xiaodong. Measuring method of harmonics and inter-harmonics with nonsynchronous sampling in IEC framework[J]. Automation of Electric Power Systems, 2015, 39(3): 69-75.