冲击性负荷条件下的电能计量方法及技术
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摘要
冲击性负荷因快速、随机的功率波功带来了严重的波形畸变,传统的电能计量方式在冲击性负荷条件下难以准确计量,为了准确计量冲击性负荷,通过对冲击性负荷下谐波特性的分析,从不同计量算法角度对计量误差展开测试研究,针对传统谐波电能计量误差较大的问题,提出冲击负荷条件下电能计量误差补偿方案,设计了电能计量软硬件方案,为冲击性负荷条件下的计量准确性提供了理论和技术支撑.
Impact load broughts serious waveform distortion due to the fast and random fluctuation,it is difficult for the traditional electric energy metering methods to accurate measurement,in order to metering impact load accurately,by analyzing of the harmonic characteristic under impact load,we carry out test research of measurement error from different measurement algorithm angles,aiming at the problem that traditional harmonic electric energy measurement have large error,putting forward electric energy measurement error compensation method under the condition of impact load,designing the hardware and software scheme of electrical energy measurement,provides theoretical and technical support for measurement accuracy under the condition of the impact load.
Impact load broughts serious waveform distortion due to the fast and random fluctuation,it is difficult for the traditional electric energy metering methods to accurate measurement,in order to metering impact load accurately,by analyzing of the harmonic characteristic under impact load,we carry out test research of measurement error from different measurement algorithm angles,aiming at the problem that traditional harmonic electric energy measurement have large error,putting forward electric energy measurement error compensation method under the condition of impact load,designing the hardware and software scheme of electrical energy measurement,provides theoretical and technical support for measurement accuracy under the condition of the impact load.
引文
[1]胡楷,翁飞兵,张忠怀.冲击性负荷的电能质量问题及其治理[C]//首届全国电能质量学术会议暨电能质量行业发展论坛论文集.北京:中国电源学会电能质量专业委员会,2007:439-445.
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[5]岳靓婧,徐勇,熊文清,等.基于提升小波变换的冲击性负荷电能表设计[J].传感器与微系统,2012,31(5):110-114.
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[7]杜天军,陈光,雷勇.基于混叠补偿小波变换的电力系统谐波检测方法[J].中国电机工程学报,2005,25(3):54-59,134.
[8]向世强,唐求,宋鹏,等.非线性负荷电能计量方法研究[J].电子测量与仪器学报,2018,32(4):181-186.
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[11]王宁,陆雨田,李代林.利用快速傅立叶算法模拟离轴混合腔的光场分布[J].科学技术与工程,2008,19:5512-5515.
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[2]乔文俞,吕丹.强谐波环境下微电网电能计量改进与误差分析[J].科学技术与工程,2016,16(31):182-187.
[3]祈才君,王小海.基于插值FFT算法的间谐波参数估计[J].电工技术学报,2003,18(1):92-95.
[4]李晶,裴亮,郁道银,等.一种用于电力系统谐波与间谐波分析的超分辨率算法[J].中国电机工程学报,2006,26(15):35-39.
[5]岳靓婧,徐勇,熊文清,等.基于提升小波变换的冲击性负荷电能表设计[J].传感器与微系统,2012,31(5):110-114.
[6]薛蕙,罗红.小波变换与傅里叶变换相结合的暂态谐波分析方法[J].中国农业大学学报,2007,12(6):89-92.
[7]杜天军,陈光,雷勇.基于混叠补偿小波变换的电力系统谐波检测方法[J].中国电机工程学报,2005,25(3):54-59,134.
[8]向世强,唐求,宋鹏,等.非线性负荷电能计量方法研究[J].电子测量与仪器学报,2018,32(4):181-186.
[9]王龙会.基于多小波变换的电能计量实验仪设计[D].哈尔滨:哈尔滨理工大学,2017.
[10]刘尧生.基于小波包变换的非线性负荷的电能计量算法研究[D].保定:华北电力大学,2016.
[11]王宁,陆雨田,李代林.利用快速傅立叶算法模拟离轴混合腔的光场分布[J].科学技术与工程,2008,19:5512-5515.
[12]中华人民共和国国家发展和改革委员会.多功能电能表:DL/T 614—2007[S].北京:中国电力出版社,2007.