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| Solution Design and Implementation for BCU Measurement Effected by High Harmonics |
| Zhu Herong, Wang Min, Sun Songlin, Zhu Yingkui, Chen Guiyou |
| NR Electric Co., Ltd, Nanjing 211102 |
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Abstract In order to solve the problem of spectrum aliasing caused by high harmonics, the low-pass filter (LFP) is used by the bay control unit (BCU) before sampling in general. In view of the attenuation of 2~15 times harmonics caused by the low pass filter, and the limitation of fixed compensation method, a frequency autocorrelation compensation algorithm is designed in this paper, in order to ensure the measurement precision, the real-time compensation coefficient of the amplitude and phase is calculated according to the practical frequency calculation, at the same time, in view of the high harmonics influence on frequency calculation, a rotation vector frequency measurement method is designed in this paper, increases the precision of frequency calculation effectively., the effectiveness of the improved scheme is proved through test and actual application.
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Published: 13 December 2016
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| Cite this article: |
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Zhu Herong,Wang Min,Sun Songlin等. Solution Design and Implementation for BCU Measurement Effected by High Harmonics[J]. Electrical Engineering, 2016, 17(12): 53-58.
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| URL: |
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https://dqjs.cesmedia.cn/EN/Y2016/V17/I12/53
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[1] 韩民晓. 高压直流输电原理与运行[M]. 北京: 机械工业出版社, 2013.
[2] Vittal V. 风力发电并网及其动态响应[M]. 北京: 机械工业出版社, 2014.
[3] 熊慕文, 陈桂友, 朱何荣. 基于双平面的测控装置集成与研制[J]. 电气技术, 2014(11): 25-28, 36.
[4] 王世一. 数字信号处理[M]. 北京: 北京理工大学出版社, 1987.
[5] GB/T 14549—1993. 电能质量 公用电网谐波[S].
[6] 戴卫力, 费峻涛. 电力电子技术在电力系统中的应用[M]. 北京: 机械工业出版社, 2015.
[7] 陈桂友, 朱何荣, 熊慕文, 等. 一起直流换流站测控装置测量电压跳变实例分析[J]. 电气技术, 2015(12): 139-141.
[8] 应怀樵, 沈松, 刘进明. 频率混叠在时域和频域现象中的研究[J]. 振动、测试与诊断, 2006, 26(1): 1-4. |
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2016, Vol. 17 
