CN106918797B - 一种基于标准数字功率源的数字化电能表检定和溯源方法 - Google Patents
一种基于标准数字功率源的数字化电能表检定和溯源方法 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000005259 measurement Methods 0.000 claims abstract description 48
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/04—Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
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Abstract
Description
数值精度/位 | 8 | 12 | 16 | 24 | 32 |
数值截断引起的B类不确定度S’<sub>b1</sub>(%) | 0.995 | 0.0617 | 0.00197 | 0.00386 | 5.823e-06 |
标准差(%) | 0.02 | 0.1 | 0.2 | 0.4 | 1 |
高斯白噪声引起的B类不确定度S<sub>b2’</sub>(%) | 0.088 | 0.045 | 0.086 | 0.18 | 0.47 |
标准差(%) | 0.006 | 0.03 | 0.06 | 0.12 | 0.3 |
1/f噪声引起的B类不确定度S<sub>b3’</sub>(%) | 0.0095 | 0.048 | 0.093 | 0.19 | 0.47 |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN107479023A (zh) * | 2017-10-13 | 2017-12-15 | 广东电网有限责任公司电力科学研究院 | 模数一体化标准功率源及标准数字电能表量值溯源系统 |
CN108375748B (zh) * | 2018-01-30 | 2019-08-20 | 电子科技大学 | 一种基于正弦激励和dft变换的非线性校准方法 |
CN108717173B (zh) * | 2018-05-15 | 2020-12-18 | 黑龙江省电工仪器仪表工程技术研究中心有限公司 | 一种智能电能表数据溯源的方法 |
CN111398883B (zh) * | 2020-02-28 | 2022-03-11 | 国网湖南省电力有限公司 | 一种电能表截断误差在线评测方法、系统及介质 |
CN117452308A (zh) * | 2023-12-21 | 2024-01-26 | 成都世源频控技术股份有限公司 | 一种全温功率的自动校准方法 |
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WO2014194518A1 (zh) * | 2013-06-07 | 2014-12-11 | 国家电网公司 | 一种基于iec61850-9采样值的数字功率源及其检测方法 |
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