基于多相滤波器组的谐波和间谐波快速检测与分析
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摘要
通过实时、准确地检测谐波和间谐波参数,才能实现谐波补偿装置的最优配置和达到治理谐波和间谐波的目的。针对谐波和间谐波检测中的实时性和高精度参数估计问题,提出了一种基于50%通道交叠的多相滤波器组结构的谐波和间谐波快速检测方法,同时避免了谐波和间谐波落入通道交叠处而降低检测能力的问题。理论分析和仿真结果表明,该方法可以有效地提高检测的实时性,同时保持着高精度,且易于实现。
Only through real-time and accurate detection of harmonic and inter-harmonic parameters can achieve the optimal configuration of harmonic compensation device,as well as achieve the goal of governing harmonics and inter-harmonics. As for the real-time and high-precision parameter estimation during the harmonics and inter-harmonics detection,this paper puts forward a high-precision correction method based on the fast detection of harmonics and inter-harmonics of 50% channel overlapped poly-phase filter structure. Meanwhile,it avoids the problem that detection capacity is reduced when harmonics and inter-harmonics are in overlapped channels. Theory analysis and simulation results show that the proposed method can effectively improve the instantaneity of detection,as well as maintain a high accuracy,and it is also easy to implement.
Only through real-time and accurate detection of harmonic and inter-harmonic parameters can achieve the optimal configuration of harmonic compensation device,as well as achieve the goal of governing harmonics and inter-harmonics. As for the real-time and high-precision parameter estimation during the harmonics and inter-harmonics detection,this paper puts forward a high-precision correction method based on the fast detection of harmonics and inter-harmonics of 50% channel overlapped poly-phase filter structure. Meanwhile,it avoids the problem that detection capacity is reduced when harmonics and inter-harmonics are in overlapped channels. Theory analysis and simulation results show that the proposed method can effectively improve the instantaneity of detection,as well as maintain a high accuracy,and it is also easy to implement.
引文
[1]熊杰锋,李群,袁晓冬,等.电力系统谐波和间谐波检测方法综述[J].电力系统自动化2013,37(11):125-133.Xiong Jiefeng,Li Qun,Yuan Xiaodong,et al.Detection Methods of Harmonics and Inter-harmonics in Power Systems[J].Automation of E-lectric Power Systems,2013,37(11):125-133.
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[7]崔浩,舒朝君,陈言.基于瞬时无功功率理论的谐波检测和抑制的模型参考自适应控制系统[J].电测与仪表,2017,54(4):6-10.Cui Hao,Shu Chaojun,Chen Yan.Model reference self-adaptive control system of harmonic detection and suppression based on instantaneous reactive power theory[J].Electrical Measurement&Instrumentation,2017,54(4):6-10.
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[9]Eren L,Unal M,et al.Harmonic analysis via wavelet packet decomposition using special elliptic half-band filters[J].IEEE Transactions on Instrumentation and Measurement,2007,56(6):2289-2293.
[10](美)James Tsui.宽带数字接收机[M].杨小牛,等译.北京:电子工业出版社,2002:259-260.
[11]杨静,吕幼新.高效数字信道化IFM接收机的研究[J].电子科技大学学报,2005,34(4):444-447.Yang Jing,Lv Youxin.Efficient Digital Channelized IFM Receiver Research[J].Journal of UEST of China,2005,34(4):444-447.
[12]丁康,郑春松,杨志坚.离散频谱的能量重心法频率校正精度分析及改进究[J].振动工程学报,2010,46(5):43-47.Ding Kang,Zheng Chunsong,Yang Zhijian.Frequency Estimation Accuracy Analysis and Improvement of Energy Barycenter Correction Method for Discrete Spectrum[J].Journal of Vibration Engineering,2010,46(5):43-47.
[13]金维刚,刘会金.基于三次样条插值时域采样重构的间谐波检测新算法[J].电网技术,2012,36(7):74-80.Jin Weigang,Liu Huijin.A New Algorithm for In-ter-harmonics Measurement Based on Time Domain Sam-pling and Reconstruction by Cubic Spline Interpolation[J].Power System Technology,2012,36(7):74-80.
[14]薛慧,杨仁刚.利用Morlet连续小波变换实现非整次谐波的检测[J].电网技术,2005,29(15):72-77.Xue Hui,Yang Rengang.Morlet Wavelet Based Detection of Noninteger Harmonics[J].Power System Technology,2005,29(15):72-77.
[15]杜正聪,祝俊,唐斌.基于近似核DFT的多正弦信号快速检测和频率估计算法[J].电子科技大学学报,2012,41(2):192-197.Du Zhengcong,Zhu Jun,Tang Bin.Detection and Fast Frequency Estimation of Multi-Component Sinusoidal Signals Using Approximate Kernel DFT[J].Journal of University of Electronic Science and Technology of China,2012,41(2):192-197.
[2]吴新忠,邢强,周涛,等.基于CEEMD与改进Prony的谐波检测方法[J].电测与仪表,2017,54(10):80-86.Wu Xinzhong,Xing Qiang,Zhou Tao,et al.A harmonic detection method based on CEEMD and the improved Prony algorithm[J].Electrical Measurement&Instrumentation,2017,54(10):80-86.
[3]雷霖,赖真良,朱家龙,等.工频变化量距离继电器耐受过渡电阻性能分析[J].电力系统保护与控制,2017,45(17):26-33.Lei Lin,Lai Zhenliang,Zhu Jialong,et al.Performance analysis of endure transition resistance of distance relay based on the power-frequency voltage and current variation[J].Electrical Measurement&Instrumentation,2017,54(10):80-86.
[4]朱宁辉,白晓民,董伟杰.基于EEMD的谐波检测方法[J].中国电机工程学报,2013,33(7):92-98.Zhu Ninghui,Bai Xiaomin,Dong Weijie.Harmonic Detection Method Based on EEMD[J].Proceedings of the CSEE,2013,33(7):92-98.
[5]周峰.基于准同步采样的电力系统谐波与间谐波在线检测方法研究[D].上海:上海交通大学,2012.Zhou Feng.Online estimation algnorithm for harmonic and interharmonic in power systems based on the quasi-synchronous sampling[D].Shanghai:Shanghai Jiao Tong University,2012.
[6]Qian H,Zhao R X,et al.Inter-harmonics analysis based on interpolating windowed FFT algorithm[J].IEEE Transactions on Power Delivery,2007,22(2):1064-1069.
[7]崔浩,舒朝君,陈言.基于瞬时无功功率理论的谐波检测和抑制的模型参考自适应控制系统[J].电测与仪表,2017,54(4):6-10.Cui Hao,Shu Chaojun,Chen Yan.Model reference self-adaptive control system of harmonic detection and suppression based on instantaneous reactive power theory[J].Electrical Measurement&Instrumentation,2017,54(4):6-10.
[8]Lin H C.Intelligent neural network-based fast power sys-tem harmonic detection[J].IEEE Transactions on Indus-trial Electronics,2007,54(1):43-52.
[9]Eren L,Unal M,et al.Harmonic analysis via wavelet packet decomposition using special elliptic half-band filters[J].IEEE Transactions on Instrumentation and Measurement,2007,56(6):2289-2293.
[10](美)James Tsui.宽带数字接收机[M].杨小牛,等译.北京:电子工业出版社,2002:259-260.
[11]杨静,吕幼新.高效数字信道化IFM接收机的研究[J].电子科技大学学报,2005,34(4):444-447.Yang Jing,Lv Youxin.Efficient Digital Channelized IFM Receiver Research[J].Journal of UEST of China,2005,34(4):444-447.
[12]丁康,郑春松,杨志坚.离散频谱的能量重心法频率校正精度分析及改进究[J].振动工程学报,2010,46(5):43-47.Ding Kang,Zheng Chunsong,Yang Zhijian.Frequency Estimation Accuracy Analysis and Improvement of Energy Barycenter Correction Method for Discrete Spectrum[J].Journal of Vibration Engineering,2010,46(5):43-47.
[13]金维刚,刘会金.基于三次样条插值时域采样重构的间谐波检测新算法[J].电网技术,2012,36(7):74-80.Jin Weigang,Liu Huijin.A New Algorithm for In-ter-harmonics Measurement Based on Time Domain Sam-pling and Reconstruction by Cubic Spline Interpolation[J].Power System Technology,2012,36(7):74-80.
[14]薛慧,杨仁刚.利用Morlet连续小波变换实现非整次谐波的检测[J].电网技术,2005,29(15):72-77.Xue Hui,Yang Rengang.Morlet Wavelet Based Detection of Noninteger Harmonics[J].Power System Technology,2005,29(15):72-77.
[15]杜正聪,祝俊,唐斌.基于近似核DFT的多正弦信号快速检测和频率估计算法[J].电子科技大学学报,2012,41(2):192-197.Du Zhengcong,Zhu Jun,Tang Bin.Detection and Fast Frequency Estimation of Multi-Component Sinusoidal Signals Using Approximate Kernel DFT[J].Journal of University of Electronic Science and Technology of China,2012,41(2):192-197.
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